1. Zinc and cadmium uptake by the hyperaccumulator Thlaspi caerulescens in contaminated soils and its effects on the concentration and chemical speciation of metals in soil solution
  2. Science and judgement in risk assessment
  3. Soil-plant nitrogen dynamics - what concepts are required?
  4. Microbial parameters as indicators of toxic effects of heavy metals on the soil ecosystem
  5. Viruses and varroa
  6. Root-to-shoot communication in Ricinus communis L. plants subjected to drying a part of the root system
  7. Letters to the editors: functional marginality is important
  8. R A Fisher and the making of maximum likelihood 1912-1922
  9. Fisher's contribution to statistics
  10. SO42- Deprivation Has an Early Effect on the Content of Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase and Photosynthesis in Young Leaves of Wheat
  11. Molecular technologies for biodiversity evaluation: Opportunities and challenges
  12. Reproducibility testing of RAPD, AFLP and SSR markers in plants by a network of European laboratories
  13. AFLP analysis sheds light on distribution of two Salix species and their hybrid along a natural gradient
  14. Expression of a borage desaturase cDNA containing an N-terminal cytochrome b(5) domain results in the accumulation of high levels of Delta(6)-desaturated fatty acids in transgenic tobacco
  15. Trafficking of wheat gluten proteins in transgenic tobacco plants: gamma-gliadin does not contain an endoplasmic reticulum retention signal
  16. Tobacco rab1 cDNA cloning and expression and structure-functional analysis of the Rab1 protein
  17. Chloroplast SecA functions as a membrane-associated component of the Sec-like protein translocase of pea chloroplasts
  18. A new class of cytochrome b(5) fusion proteins
  19. Molecular tools in plant genetic resources conservation: a guide to the technologies
  20. Insecticidal natural products from Sri Lankan plants
  21. Compounds for control of whitefly (WO 97/16067) Patent
  22. Pesticidal compounds (WO 97/02271)
  23. Fungicidal compounds (B) (WO 97/16970)
  24. Use of naphthoquinone compounds as antiprotozoal agents (WO 97/18800)
  25. Efrapeptin production by Tolypocladium species
  26. Contact toxicity and antifeedant effect of destruxin A and E against Plutella xylostella
  27. Modelling carbon turnover for the Pendleton residue management experiment (IACR Technical Report)
  28. Use of semiochemicals in different types of traps for monitoring stem weevil (Ceutorhynchus sp.) flight to winter rape
  29. Manipulation of Praon populations with synthetic aphid sex pheromones for control of cereal aphids
  30. Insecticide resistant aphids fight back
  31. Evening primrose oil in transgenic plants
  32. Improving wheats for EU food processors
  33. The high molecular weight (HMW) subunits of wheat gluten
  34. Optimising cereal inputs: its scientific basis. Part 1: Genetics and nutrition. Aspects of Applied Biology 50
  35. Proceedings of the Expert Consultation on Plant Nematode Problems and their Control in the Near East Region, Karachi, 22-26 November 1992
  36. Viruses
  37. Beta vulgaris mRNA for SNF1-related protein kinase
  38. Structure and function of the plant vacuolar H+-pumping inorganic pyrophosphatase
  39. Differentiation of Meloidogyne hapla from Meloidogyne chitwoodi and Meloidogyne fallax using variation in the cuticle surface
  40. White clover: honey bees v. bumble bees as pollinators
  41. Field studies of Varroa jacobsoni and secondary infections in the UK
  42. Varroa jacobsoni and honeybee virus infections: implications for control strategies
  43. A biorational approach to microbial control of aphids
  44. Mortality can produce predicatable dynamics in chaotic populations
  45. Identification and quantification of plant parasitic nematodes using immunological techniques
  46. Characterisation of Nacobbus aberrans from Mexico and South America
  47. Immunoassays for the quantification of plant parasitic nematodes and their potential application to Nacobbus aberrans
  48. Estudio de la morfologia de las espiculas de poblaciones de Nacobbus aberrans a traves del microscopio electronico de barrido
  49. Manejo de poblaciones de Nacobbus aberrans en al cultivo de tomate (Lycopersicum esculentum Mill.)
  50. Effect of weather on efficacy of herbicides in sugar beet
  51. Utilisation of wild gramineous plants for management of cereal stemborers in Africa
  52. Identification and quantification of plant parasitic nematodes using immunological techniques
  53. The analysis of longitudinal ordinal data with informative dropout
  54. Control over denitrification and its gaseous products in a permanent pasture soil
  55. Chemical control
  56. Field and laboratory techniques
  57. Fungal pathogens of thrips
  58. Flight and dispersal
  59. Pest thrips in perspective
  60. Thrips as crop pests
  61. Complementary techniques: fluorescence microscopy
  62. Immunocytochemical localisation of glycosaminoglycan-like activity in the mucus and associated tissues of terrestrial slug species (Gastropoda: Pulmonata)
  63. Characteristics of adhesion pads formed during imbibition and germination of urediniospores of Uromyces viciae-fabae on host and synthetic surfaces
  64. Characterization of the acetylcholinesterase gene from insecticide-resistant houseflies (Musca domestica )
  65. The use of single-species spatially explicit models
  66. Arthropod natural enemies in arable land III: the individual, the population and the community (Acta Jutlandica Vol. 72(2))
  67. Spatial association for counts of two species
  68. A semi-field method to assess the effect of dimethoate on the density and mobility of ground beetles (Carabidae)
  69. Biochemical resistance detection in Helicoverpa armigera in Australia
  70. Mortality can produce predictable dynamics in chaotic populations
  71. Genstat 5 Release 4.1 reference manual supplement
  72. Genstat for Windows command language manual
  73. Procedure AGBIB
  74. Identification of yeasts through computer-based systems
  75. An introductory course for Genstat 5 Release 4
  76. Phosphorus loss from agriculture to water: synthesis and summary
  77. Ground cover and leaf area index of maize and sugar beet crops
  78. Temperature change and complex dynamics
  79. Handling and aflatoxin contamination of white maize in Costa Rica
  80. Small sample inference for fixed effects from restricted maximum likelihood
  81. Prediction regions for categorical variables
  82. Using long-term experiments to estimate the potential for carbon sequestration at the regional level - an examination of five European scenarios
  83. Behaviour of trace elements in terrestrial ecosystems
  84. Integrated plant nutrient management for efficient crop production
  85. Genetic aspects of common health disorders and measures of fertility in Holstein Friesian dairy cattle
  86. The description of experimental designs in information systems
  87. Procedure PTINTENSITY (Software distributed with Genstat 5 Release 4.1)
  88. Procedure PTSINPOLYGON (Software distributed with Genstat 5 Release 4.1)
  89. Procedure PTAREAPOLYGON (Software distributed with Genstat 5 Release 4.1)
  90. Procedure MSEKERNEL2D (Software distributed with Genstat 5 Release 4.1)
  91. Procedure KTORENVELOPES (Software distributed with Genstat 5 Release 4.1)
  92. Procedure KSED (Software distributed with Genstat 5 Release 4.1)
  93. Procedure KLABENVELOPES (Software distributed with Genstat 5 Release 4.1)
  94. Procedure KHAT (Software distributed with Genstat 5 Release 4.1)
  95. Procedure KERNEL2D (Software distributed with Genstat 5 Release 4.1)
  96. Procedure KCSRENVELOPES (Software distributed with Genstat 5 Release 4.1)
  97. Procedure K12HAT (Software distributed with Genstat 5 Release 4.1)
  98. Procedure PTGRID (Software distributed with Genstat 5 Release 4.1)
  99. Procedure GHAT (Software distributed with Genstat 5 Release 4.1)
  100. Procedure GRCSR (Software distributed with Genstat 5 Release 4.1)
  101. Procedure FZERO (Software distributed with Genstat5 Release 4.1)
  102. Procedure FHAT (Software distributed with Genstat 5 Release 4.1)
  103. Procedure PTREMOVE
  104. Procedure PTCLOSEPOLYGON
  105. Procedure PTBOX
  106. Procedure GRTORSHIFT
  107. Procedure GRTHIN
  108. Procedure GRLABEL
  109. Procedure DPOLYGON
  110. Procedure DRPOLYGON
  111. Procedure DPTREAD
  112. Procedure DPTMAP
  113. Influence of pesticide use on the natural occurrence of entomopathogenic fungi in arable soils in the U.K.: field and laboratory comparisons
  114. The responses of the cabbage seed weevil Ceutorhynchus assimilis to volatile compounds from oilseed rape in a linear track olfactometer
  115. Electrophysiological analysis of reponses of males of Globodera spp. to some chemicals
  116. Kinetics of insensitive acetylcholinesterases in organophosphate-resistant tobacco whitefly, Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae)
  117. Variation in pathogenicity on potato tubers and sensitivity to thiabendazole of the dry rot fungus Fusarium avenaceum
  118. Esterases and fenvalerate resistance in a field population of Helicoverpa punctigera (Lepidoptera: Noctuidae) in Australia
  119. Trichoplusia ni (Hb.) (Lep.:Noctuidae) The Ni Moth in Glamorganshire
  120. Simulating trends in soil organic carbon in long-term experiments using the Verberne/MOTOR model
  121. A comparison of the performance of nine soil organic matter models using datasets from seven long-term experiments
  122. Simulating trends in soil organic carbon in long-term experiments using the NCSOIL and NCSWAP models
  123. Simulating trends in soil organic carbon in long-term experiments using the century model
  124. Simulating trends in soil organic carbon in long-term experiments using the soil-plant-atmosphere model DAISY
  125. Acquisition of genes from indigenous bacteria by inoculant strains at long-term release sites
  126. Simulating trends in soil organic carbon in long-term experiments using the CANDY model
  127. Effect of pH on nitrous oxide emissions from grassland soil
  128. Simulating trends in soil organic carbon in long-term experiments using RothC-26.3
  129. Simulating trends of soil organic carbon in seven long-term experiments using the SOMM model of the humus types
  130. Simulating trends in soil organic carbon in long-term experiments using the DNDC model
  131. Simulating trends in soil organic carbon in long-term experiments using the ITE (Edinburgh) Forest and Hurley pasture ecosystem models
  132. Sulphur nutrition: an important factor for the quality of wheat and rapeseed
  133. Sulphur inputs for optimum yields of cereals
  134. Evaluation and comparison of soil organic matter models (Geoderma Special Issue 81(1-2))
  135. Constructing a nitrogen fertilizer recommendation system using a dynamic model: what do farmers want?
  136. Changes with time in the potassium content and phyllosilicates in the soil of the Broadbalk continuous wheat experiment at Rothamsted
  137. Managing nutrient supplies to meet agricultural and environmental goals
  138. Regulation of the expression of ferrodoxin-glutamate synthase in barley
  139. Long term water stress inactivates Rubisco in subterranean clover
  140. Kinetically controlled release of uranium from soils
  141. Zinc and cadmium uptake by the hyper accumulator Thlaspi caerulescens in contaminated soils and its effects on the concentration and chemical speciation of metals in soil solution
  142. The role of microbial parameters in monitoring soil pollution by chromium
  143. The resistance of sugar beet to aphids
  144. Criteria for evaluating biological control agents for sugar beet seedling diseases
  145. Persistence of the selective aphicide triazamate in sugar beet in relation to its efficacy against aphids
  146. Radar remote sensing for monitoring sugar beet production. PhD thesis, University of Nottingham
  147. Genetic engineering for bolting resistance
  148. Comparison of properties of European isolates of BMYV and BYV
  149. Assessment of risks associated with the release of transgenic sugar beet expressing viral gene sequences
  150. The development of molecular markers for evaluating disease resistance in Beta $ germplasm
  151. Comparative climatic advantage in UK and north-west European sugar beet production
  152. The SNF1-related protein kinase of sugar beet
  153. Sugar beet as a changing host for the aphid
  154. Topping level, sugar yield and root quality of beet from a range of soils: a study for the National Farmers' Union 1996/97
  155. Nutrient availability and yield variation in beet rotations: implications for precision farming
  156. Growth and competition between sugar beet (Beta vulgaris ) and fat hen (Chenopodium album ) in elevated carbon dioxide and temperature conditions
  157. Monitoring and forecasting aphid vectors of beet viruses: a working system
  158. Studies on variability in plant populations. PhD thesis, University of East Anglia
  159. Precision farming for sugar beet
  160. Changes in fertiliser usage in sugar beet production
  161. Pests of sugar beet in 1996 in the UK
  162. The influence of seed size and plant age at vernalisation on bolting and flowering in sugar beet
  163. Rhizomania: the role of vector and virus resistance
  164. A comparison of methods for predicting the N-fertiliser requirement of the UK beet crop
  165. The effect of host plant-induced stomach precipitate on the ability of Myzus persicae (Hemiptera: Aphididae) to transmit sugarbeet yellowing viruses
  166. The Broom's Barn Plant Clinic
  167. Modulation of spore adhesion of the hyperparasitic bacterium Pasteuria penetrans to nematode cuticle
  168. Bringing precision to decisions in agriculture
  169. Germination behaviour of dormant oilseed rape seeds in relation to temperature
  170. Sugar beet production: strategies for the future
  171. Use of gene technology in food
  172. MACRO-DB: a decision-support tool for assessing pesticide fate and mobility in soils
  173. Influence of target characteristics on the amount of water splashed by impacting drops
  174. Aspects of sexual reproduction and their effect on population genetic structure in creeping thistle (Cirsium arvense L. Scop.)
  175. Resistance due to insensitive acetylcholinesterase in peach-potato aphids Myzus persicae
  176. Aerobiologie and plant pathology
  177. Precision farming for sugar beet
  178. In the shadow of Olympus
  179. The establishment of cover crops by reduced cultivation, direct drilling and pre-harvest sowing and the effect on the yield of the following crop
  180. Host plant effects on the performance of the aphid Aulacorthum solani (Kalt.) (Homoptera: Aphididae) at ambient and elevated CO2
  181. The 1997 rhizomania demonstration trials
  182. To mix or not to mix? The utility of pesticide mixtures for combating pest resistance
  183. Management of herbicide resistance in grass weeds: parallels with and lessons from work on insecticide resistance
  184. Modelling the dynamical components of the sugar beet crop
  185. Asymptotic analysis of an epidemic model with primary and secondary infection
  186. Changes in the weight and quality of sugarbeet (Beta vulgaris) roots in storage clamps on farms
  187. Low temperature interactions between aphids and their natural enemies
  188. Mortality during dispersal stabilizes local population fluctuations
  189. 'Talking' plants and insects
  190. Norman Pirie (1907-97) [Obituary]
  191. Induction of activity in the olfactory nerve of the slug Deroceras reticulatum (Muller) in response to volatiles emitted by carabid beetles
  192. Electrophysiological and behavioural studies of the biting midge, Culicoides impunctatus Goetghebuer (Diptera, Ceratopogonidae): interactions between some plant-derived repellent compounds and a host-odour attractant, 1-octen-3-ol
  193. Nitrogen-containing macromolecular moieties in soil organic matter
  194. The biology of mycorrhiza in the Ericaceae 19. Fungal mycelium as a nitrogen source for the ericoid mycorrhizal fungus Hymenoscyphus ericae and its host plants
  195. Input control of organic matter dynamics
  196. Effects of planting mixtures of different sizes of potato seed tubers on the yield and size of tubers
  197. Molecular approaches to wheat quality improvement
  198. Horizontal movement of seeds following tine and plough cultivation: implications for spatial dynamics of weed infestations
  199. Managing resistance to the chloronicotinyls: rhetoric or reality?
  200. Buffer zones. Their processes and potential in water protection
  201. The production and characterisation of monoclonal antibodies against Alternaria brassicae (Berk.) Sacc., the cause of dark leaf and pod spot in oilseed rape
  202. Regulation of glutamate dehydrogenase activity by manipulation of nucleotide supply in Daucus carota suspension cultures
  203. Glutathione transferases in herbicide-resistant and herbicide-susceptible black-grass (Alopecurus myosuroides )
  204. Semiochemicals mediating spacing behaviour of bird cherry-oat aphid, Rhopalosiphum padi , feeding on cereals
  205. Sex pheromone stereochemistry and purity affect field catches of male aphids
  206. Potential uses of piperonyl butoxide for controlling the cotton whitefly Bemisia tabaci (Gennadius). PhD thesis, Imperial College, University of London
  207. The use of computer simulation models to optimise the use of nitrogen in whole farm systems
  208. Using nutrient budgets to evaluate the sustainability of farming systems
  209. Biotechnology of cereals: genetic manipulation techniques and their use for the improvement of quality, resistance and input use efficiency traits
  210. Biometrical impact in the ACP countries
  211. Predicting wheat yields: the search for valid and precise models
  212. Optimising sulphur inputs for breadmaking quality of wheat
  213. There must be more to chaos than fractals
  214. Using models to help limit the environmental impact of fertilizer use
  215. Occurrence of flavonoids and nucleosides in agricultural soils
  216. Twenty years of soil science at Rothamsted
  217. Constructing a nitrogen fertilizer recommendation system around the dynamic nitrogen turnover model, SUNDIAL
  218. Agricultural soils as a sink to mitigate CO2 emissions
  219. Modeling carbon and nitrogen processes in soil
  220. MINIM - a database of nitrogen mineralization and immobilization experiments. A user guide (MAFF contract 1503)
  221. MINIM - a database of mineralization experiments (MS-Access database)
  222. A decision support system for nitrogen fertilizer recommendation: what do farmers want?
  223. The influence of different farming strategies on nitrate leaching: implementation of a whole farm modelling system
  224. Constructing a nitrogen fertilizer recommendation system: what do farmers want?
  225. Simulation of nitrogen turnover in crop rotations
  226. Investigation of magnetic mineral differentiation in topsoils of a long term field experiment
  227. Phosphorus losses in the Brimstone Experiment
  228. Pulsed gas chromatography-electroantennography: evaluation of a new approach
  229. Host location in phytophagous insects
  230. Behavioural and sensory correlates of olfactory learning in the honeybee
  231. Formulation and application of the entomopathogenic fungus Metarhizium anisopliae Metch for the control of crucifer pests in oilseed rape
  232. Immunological detection of greenbug (Schizaphis graminum ) esterases associated with resistance to organophosphate insecticides
  233. Herbivore-induced synomones regulating the flight behaviour of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)
  234. Aphid-induced plant synomones affecting the foraging behaviour of the parasitoid Aphidius ervi
  235. Transgenic plants expressing insect resistance: assessing the impact on targets and non-targets
  236. Some aspects of the spatial dynamics of weeds
  237. When is a clone not a clone? DNA profile differences between winged and wingless morphs within an aphid clone
  238. Choice of molecular markers in applied entomology
  239. Using microsatellite DNA to study aphid genetic heterogeneity in the UK
  240. Using microsatellite DNA to study aphid genetic heterogeneity in the UK
  241. Physical and chemical cues regulating the oviposition behaviour of Aphidius ervi Haliday (Hymenoptera: Braconidae)
  242. Decision support for control of BYDV vectors
  243. Engineering resistance against plant parasitic nematodes using anti-nematode genes
  244. Invertebrates
  245. Florida butterflies recorded in March-April 1981
  246. Lunga vita all'entomologo!
  247. The movement of honey bee colonies for crop pollination and honey production by beekeepers in Great Britain
  248. Fungicide use and oil quality in rapeseed (Brassica napus L.)
  249. Herbicide resistance and gene flow in black-grass (Alopecurus myosuroides ) and wild-oats (Avena spp.)
  250. Molecular analysis of weed populations and evolution of herbicide resistance
  251. Molecular analysis of weed populations and evolution of herbicide resistance
  252. Activity of JV 485, a protoporphyrinogen oxidase inhibitor, on herbicide-resistant black-grass (Alopecurus myosuroides )
  253. Polymorphism in blackgrass (Alopecurus myosuroides ) populations in response to herbicides
  254. Variation in cross-resistance in blackgrass (Alopecurus myosuroides ) within and between populations: implications for management
  255. Characteristics of acetyl-CoA carboxylases from graminicide-tolerant grasses
  256. A large duplication in the 3'-untranslated region of a subpopulation of RNA2 of the UK-M isolate of barley mild mosaic bymovirus
  257. Airborne fungal propagules, bacteria and endotoxin in animal care houses
  258. Use of field diagnostics to improve predictions of nitrogen dynamics in arable land
  259. Plant testing for assessing the adequacy of P supply in winter wheat crops
  260. Stored nitrate for diagnosing N sufficiency in wheat crops
  261. Plant testing to determine the P and K status of wheat. Home-Grown Cereals Authority Project Report 137
  262. N requirement of winter wheat and diagnosis of deficiency
  263. Inorganic orthophosphate for diagnosing the phosphorus status of wheat plants
  264. Impact and epidemiology of barley yellow dwarf luteovirus on some biomass crops in the UK
  265. BYDV in spring barley
  266. Development of a PCR based detection technique for Pyrenopeziza brassicae , causal agent of light leaf spot on winter oilseed rape
  267. A novel spore trap for monitoring airborne Alternaria brassicae spores using monoclonal antibodies
  268. The influence of environment on the development and control of disease
  269. Diseases of linseed and fibre flax
  270. Relationships among Fusarium spp. estimated by comparing restriction fragment length polymorphisms in polymerase chain reaction-amplified ribosomal DNA
  271. Sampling bioaerosols in plant pathology
  272. Semiochemically-induced inhibition of behaviour of Tomicus destruens (Woll.) (Coleoptera: Scolytidae)
  273. Field discrimination of some oilseed rape, Brassica napus volatiles by the cabbage seed weevil, Ceutorhynchus assimilis
  274. Population studies on farmland insects using genetic markers, PhD thesis, University of Nottingham
  275. Effects of climate change on the overwintering biology of aphid natural enemies
  276. Interactions between aphid predators and the entomopathogenic fungus Erynia neoaphidis
  277. Comparative biology of Steinernema feltiae and Heterorhabditis megidis from Greece and the UK
  278. Control of slug and snail damage with low toxicity, plant derived repellents and antifeedants
  279. Studies on the characterisation and bionomics of Nacobbus aberrans (Thorne, 1935) Thorne & Allen, 1944 (Nematoda: Pratylenchidae)
  280. Comparison of genetic variability in European and South American populations of potato cyst nematodes measured by variation in DNA and virulence towards plant resistance genes
  281. Aphid-plant interactions at ambient and elevated CO2
  282. Migration behavior of root-knot nematodes in roots
  283. Effect of visual cues and a mixture of isothiocyanates on trap capture of cabbage seed weevil, Ceutorhynchus assimilis
  284. Electrophysiological analysis of the concentration-dependent responses of the insect parasitic nematode, Leidynema appendiculata , to acetylcholine
  285. Management of Meloidogyne incognita in tomato nurseries by integration of Glomus deserticola with Verticillium chlamydosporium
  286. The purification and properties of glutathione S-transferase from Ditylenchus myceliophagus
  287. New genes for resistance to downy mildew (Peronospora parasitica ) in oilseed rape (Brassica napus ssp. oleifera )
  288. In vitro trapping ability of nematophagous fungi against different populations of Caenorhabditis elegans
  289. Molecular studies of knockdown resistance to pyrethroids: cloning of domain II sodium channel gene sequences from insects
  290. Amplification and restriction endonuclease digestion of the Pr1 gene for the detection and characterization of Metarhizium strains
  291. The nature and extent of the suppression of cyst nematode multiplication on susceptible hosts in some soils
  292. Progress in the biological control of root-knot nematodes in vegetable crops using the nematophagous fungus, Verticillium chlamydosporium
  293. A strategy for the biomanagement of root-knot nematodes in tropical soils
  294. Fungi as biological control agents for plant parasitic nematodes
  295. Characterization of nematophagous species of Verticillium from Cuban coffee plantations
  296. The effect of broadcast granular, liquid placed and foliar applied fertiliser on the tuber yield of potatoes (Solanum tuberosum L.) infected by the potato cyst nematode, Globodera pallida
  297. Effects of long term storage and above normal temperatures on spore adhesion of Pasteuria penetrans and infection of the root-knot nematode Meloidogyne javanica
  298. Premortality effects of Zoophthora radicans infection in Plutella xylostella
  299. Use of biochemical and DNA diagnostics for characterising multiple mechanisms of insecticide resistance in the peach-potato aphid, Myzus persicae (Sulzer)
  300. Chemically mediated associative learning in the host foraging behavior of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)
  301. Identification of Meloidogyne incognita cuticle surface antigens using monoclonal antibodies
  302. Schistosoma mansoni : anomalous immunogenic properties of a 27 kDa larval serine protease associated with protective immunity
  303. Manejo de poblaciones de Nacobbus aberrans en el cultivo de tomate (Lycopsersicum esculentum Mill.)
  304. Estudio de la morfologia de las espiculas de poblaciones de Nacobbus aberrans a traves de microscopio electronico de barrido
  305. Pyrethroid insecticides
  306. When nature knows pest
  307. Factors affecting winter survival of the florally determinate white lupin cv. Lucyane
  308. Entrainment of plant-derived semiochemicals mediating insect-plant interactions
  309. Additive dose model (ADM) adapted for use in analysing multiple-weed species interference
  310. Competitive effects of weeds in linseed
  311. Spatially selective weed control in arable crops - where are we now?
  312. Genotypic variation in the development of secondary dormancy in oilseed rape and its impact on the persistence of volunteer rape
  313. The importance of mortality in weed populations between autumn and spring on the reliability of yield loss predictions in winter wheat
  314. Response of oilseed rape to interference from Stellaria media
  315. Effect of post-harvest cultivation on persistence of oilseed rape seeds
  316. Influence of interspecific interference on the seed production of Stellaria media and Hordeum vulgare (volunteer barley)
  317. Predicting yield loss due to interference from two weed species using early observations of relative weed leaf area
  318. AQUASTAT 5: displaying data
  319. Statistical usage in biological sciences: main problems and solutions
  320. AQUASTAT 2: a simple experiment
  321. AQUASTAT 1: why statistics?
  322. Genstat 5 Release 4.1 reference summary
  323. A population genetics model of marker-assisted selection
  324. A genetic analysis of egg quality traits and their maternal influence on offspring-parental regressions of juvenile body weight performance in broiler chickens
  325. Evidence for a possible fitness trade-off between insecticide resistance and the low temperature movement that is essential for survival of UK populations of Myzus persicae (Hemiptera: Aphididae)
  326. Multivariate analysis of test day milk yields of British Holstein- Freisian heifers using Gibbs sampling
  327. Univariate analysis of test day milk yields of British Holstein - Friesian heifers using Gibbs sampling
  328. Global methane budgets: the contribution of wetland soils
  329. NADP-malate dehydrogenase in the C4 plant Flaveria bidentis : cosense suppression of activity in mesophyll and bundle-sheath cells and consequences for photosynthesis
  330. SOMNET - a global network and database of soil organic matter models and long-term experimental datasets
  331. Potential for carbon sequestration in European soils: preliminary estimates for five scenarios using results from long-term experiments
  332. The influence of soil organic matter (SOM) on the accumulation and transformation of inorganic and organic pollutants. Final report on INTAS project 93-1168
  333. Integrating agricultural nutrient management with environmental objectives: current state and future prospects
  334. Regeneration of fertile transgenic plants of barley via PEG-mediated transformation of scutellum protoplasts
  335. Carbon in tropical wetlands
  336. Molecular enzymology of plant cytochromes P450
  337. The effect of take-all (Gaeumannomyces graminis var tritici ) disease of wheat on residual mineral N in arable soils
  338. Effects of season, soil type and cropping on recoveries, residues and losses of 15N-labelled fertilizer applied to arable crops in spring
  339. The role of available metal ions in the transfer of mobile genetic elements
  340. Fertilisers and agriculture: fifty years of developments and challenges
  341. Peat - a valuable resource
  342. Improving nitrogen mineralization estimates with MINIM, the database of nitrogen mineralization and immobilization experiments
  343. Soil characteristics that regulate soil reduction and methane production in wetland rice soils
  344. Genetic manipulation of key photosynthetic enzymes in the C4 plant, Flaveria bidentis
  345. Genetic basis of wheat roots colonisation by pseudomonads
  346. Soil organic matter and soil quality: lessons learned from long term field experiments at Askov and Rothamsted
  347. Transformation of wheat with high molecular weight subunit genes results in improved functional properties
  348. Alternative paradigms for modelling soil systems
  349. Individual animal model estimates of genetic correlations between performance test and reproduction traits of Landrace pigs performance tested in a commercial nucleus herd
  350. Individual animal model estimates of genetic parameters for reproduction traits of Landrace pigs performance tested in a commercial nucleus herd
  351. Individual animal model estimates of genetic parameters for performance test traits of male and female Landrace pigs tested in a commercial nucleus herd
  352. Results of multivariate individual animal model genetic evaluations of British pedigree beef cattle
  353. Assigning pedigree beef performance records to contemporary groups taking account of within herd calving patterns
  354. Characterization of low and high affinity nitrate cotransporters expressed in Xenopus oocytes
  355. Expression in Xenopus oocytes and kinetic characterization of known sucrose carriers
  356. Functional expression of the crnA high affinity nitrate transporter of Aspergillus nidulans in Xenopus oocytes
  357. Cloning and characterization of the NRT2 family of high affinity nitrate transporters from higher plants
  358. Functional analysis of a novel nitrogen-inducible MADS-box gene expressed in Arabidopsis roots
  359. Cloning and characterization of the NRT2 family of high affinity nitrate transporters from higher plants
  360. Is K+ transport into meristematic cells of barley roots maintained under severe K+ deprivation?
  361. Soil-plant nitrogen dynamics - what concepts are required?
  362. Development of a reliable system for cereal transformation: transformation, stability and heritability of transgenes, isolation of tissue-specific promoters
  363. PCR identification of a Nicotiana plumbaginifolia cDNA homologous to the high-affinity nitrate transporters of the crnA family
  364. Comparison of ecological effects of chronic exposure of soil bacteria to toxic metals and how these can be avoided
  365. An approach to critical loads of heavy metals in soils
  366. Antisense constructs of the high affinity potassium transporter HKT1 in two wheat varieties
  367. Barley plants transformed with HAL1 gene
  368. Characterization of a novel P-glycoprotein homologue from barley - an ABC-type transporter with no assigned function in plants
  369. Pyrophosphate analogues differ in their effectiveness as competitive inhibitors of the plant vacuolar proton-pumping pyrophosphatase: a structural explanation
  370. Effects of salinity on intracellular ion compartmentation
  371. Salt tolerance of barley: root-shoot transport of sodium
  372. Biodiversity of arbuscular mycorrhizal fungi in relation to availability of heavy metals in polluted soil
  373. The effect of agriculture on methane oxidation in soil
  374. BMP effectiveness: the European perspective
  375. Fate of 15N-labelled fertilizer applied to spring barley grown on soils of contrasting nutrient status
  376. Analysis of integration, expression and stability of heterologous and homologous transgenes in wheat and tritordeum
  377. Getting nitrogen right: the role of the computer and the chlorophyll meter
  378. The bees' knees
  379. Developing sustainable pest control from chemical ecology
  380. Developing a GIS-based tool for testing field sampling plans by modelling the within-field distribution of Brevicoryne brassicae in Brussels sprouts
  381. The influence of safeners on the efficacy of herbicides against resistant grass-weeds
  382. Insect injury to linseed in south-east England
  383. Molecular methods for screening the coconut lethal disease (LD) phytoplasma in Tanzania
  384. Effect of the host plant on the susceptibility of crucifer pests to the insect pathogenic fungus Metarhizium anisopliae
  385. Sex pheromones of the potato cyst nematodes Globodera rostochiensis and G. pallida
  386. Effects of beet yellows virus and drought on the growth of sugar beet
  387. Detecting the effects of climate change on Lepidoptera
  388. Climate change may increase vulnerability of aphids to natural enemies
  389. Optimization of pheromone dispensers for diamondback moth Plutella xylostella
  390. Revised guidelines for preventing and managing herbicide-resistant grass-weeds
  391. Institutes top UK science league table
  392. The effect of Albugo candida on the resistance to Peronospora parasitica and vice versa in rapeseed-mustard
  393. Californian sugar beet: its pests and diseases
  394. Controlling virus yellows: how far does your Gaucho go?
  395. Sugar beet research and extension prospects: the view from Broom's Barn
  396. Comparison of ELISA and RT-PCR for the detection of beet yellows closterovirus in plants and aphids
  397. Effects of advancement on nucleic acids in sugarbeet (Beta vulgaris ) seeds
  398. Information from Broom's Barn
  399. Modelling asymmetrical growth curves that rise and then fall: applications to foliage dynamics of sugar beet (Beta vulgaris L.)
  400. Weed control chemicals for 1997
  401. Weed control in 1997 and lessons from 1996
  402. New insecticide sprays for sugar beet
  403. Induction of local and systemic resistance to virulent isolates of Peronospora parasitica and Albugo candida in Brassica juncea cotyledons by an avirulent isolate of A. candida
  404. Arable weeds identified as new sources of beet mosaic potyvirus in Greece
  405. Responses of individual honey bees to artificial feeders visited by themselves and to feeders visited by hivemates
  406. Invasion and migration behaviour of sedentary nematodes
  407. Functional analysis of a rat sodium channel carrying a mutation for insect knock-down resistance (kdr ) to pyrethroids
  408. Detection and differentiation of African coconut phytoplasmas: RFLP analysis of PCR-amplified 16S rDNA and DNA hybridisation
  409. A model describing the population dynamics of Sitobion avenae and Coccinella septempunctata
  410. Variation among isolates of Fusarium avenaceum from different hosts determined by DNA analyses and vegetative compatibility groupings
  411. Monograph on downy mildew of crucifers (Saskatoon Research Centre Technical Bulletin 1997-01)
  412. Mortality during dispersal and the stability of a metapopulation
  413. Notable Lepidoptera from Barking, Essex
  414. Electrophysiological analysis of the response of males of the potato cyst nematode, Globodera rostochiensis , to fractions of their homospecific sex pheromone
  415. Laboratory evaluation of antifeedant compounds for inhibiting settling by cereal aphids
  416. Aphid parasitoid responses to semiochemicals - genetic, conditioned or learnt?
  417. Plant signals in nematode hatching and attraction
  418. Spatial distributions of counts at the edges of sample areas
  419. Some unresolved issues in non-linear population dynamics
  420. Induction of secondary dormancy in rape seeds (Brassica napus L.) by prolonged imbibition under conditions of water stress or oxygen deficiency in darkness
  421. Complete RNA1 sequences of two UK isolates of barley mild mosaic virus: a wild-type fungus-transmissible isolate and a non-fungus-transmissible derivative
  422. Responses of Dasineura brassicae and its parasitoids Platygaster subuliformis and Omphale clypealis to field traps baited with organic isothiocyanates
  423. Strategies for the prevention and control of herbicide resistance in annual grass weeds
  424. The use of isoenzyme markers to determine pollen flow and seed paternity mediated by Apis mellifera and Bombus spp. in Trifolium repens , a self-incompatible plant species
  425. Management and disease problems of Africanised bees in Brazil
  426. Identification of Piper yellow mottle virus, a mealybug-transmitted badnavirus infecting Piper spp. in Southeast Asia
  427. Effect of conditioning on discrimination of oilseed rape volatiles by the honeybee: use of a combined gas chromatography-proboscis extension behavioural assay
  428. The effect of soil freezing on the survival of winter-sown white lupins (Lupinus albus L.)
  429. Philip Herries Gregory 1907-1986: pioneer aerobiologist, versatile mycologist
  430. Actinomycetes in composts
  431. In pursuit of insecticidal compounds from plants
  432. A new group of plant-derived naphthoquinone pesticides
  433. Intercropping increases parasitism of pests
  434. Sublethal effects of pesticides on locomotory behaviour of beneficial arthropods
  435. Thirty-two years down the tube
  436. A study of the factors affecting the selection of insecticide resistant Myzus persicae
  437. Monitoring and forecasting aphids and virus
  438. Mechanisms of resistance to aryloxyphenoxypropionate herbicides in two resistant biotypes of Alopecurus myosuroides (blackgrass): herbicide metabolism as a cross-resistance mechanism
  439. Electrophoretic analysis of non-B and B-biotype Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) in Australia
  440. Sex pheromone of cabbage aphid Brevicoryne brassicae : identification and field trapping of male aphids and parasitoids
  441. Compatibility between Pasteuria penetrans isolates and Meloidogyne populations from Spain
  442. Peach potato aphids are 'enemy No 1'
  443. Switch to avoid resistance not advised
  444. Diversity and partial characterization of putative virulence determinants in Pasteuria penetrans , the hyperparasitic bacterium of root-knot nematodes (Meloidogyne spp.)
  445. Uptake of nitrogen by Miscanthus
  446. Nitrate leaching under Miscanthus grass
  447. A study of grain dormancy and viability in spring barley
  448. Current bee research at Rothamsted
  449. Identification of floral volatiles involved in recognition of oilseed rape flowers, Brassica napus by honeybees, Apis mellifera
  450. A kinetic model with ordered cytoplasmic dissociation for SUC1, an Arabidopsis H+/sucrose cotransporter expressed in Xenopus oocytes
  451. Lessons to be learned about soil-plant metal transfers from the 50-year sewage sludge experiment at Woburn, UK
  452. Sulphur nutrition: an important factor for the quality of wheat and rapeseed
  453. Diagnosis of sulphur deficiency in wheat
  454. Importance of sulphur in UK agriculture
  455. Nitrogen to sulphur ratio in rapeseed and in rapeseed protein and its use in diagnosing sulphur deficiency
  456. Variations in microbial populations in soils with different methane uptake rates
  457. Changes in phytoavailability of zinc to plants sharing a rhizosphere with the zinc hyperaccumulator Thlaspi caerulescens J. & C. Presl
  458. Evidence of phosphorus movement from Broadbalk soils by preferential flow
  459. An overview of the environmental impact of agriculture in the UK
  460. Genes and transformation
  461. Uptake and transport of zinc in the hyperaccumulator Thlaspi caerulescens and the non-hyperaccumulator Thlaspi ochroleucum
  462. Comparison of fertilizer phosphorus recommendations in Ireland and England and Wales
  463. Edward Stone (1702-1768) and Edmund Stone (1700-1768): confused identities resolved
  464. Rothamsted workshop on soil remediation - current research and future requirements
  465. Adverse effects of cadmium on soil microflora and fauna
  466. Potential phytoextraction of zinc and cadmium of soils using hyperaccumulator plants
  467. Environmental applications of soil geochemical data
  468. The use of N-fixing bacteria in revegetation of metal-contaminated land
  469. Effects of prolonged washing on primary and secondary transport processes at the plasma membrane in Red Beet storage tissue
  470. Response of crops to environmental change conditions: consequences for world food production
  471. Factors affecting critical soil phosphorus values
  472. Defining critical levels of available soil phosphorus for agricultural crops
  473. The downward movement and retention of phosphorus in agricultural soils
  474. Phosphorus leaching in the Brimstone Farm Experiment, Oxfordshire
  475. Phosphorus losses in drainage water from an arable silty clay loam soil
  476. Phosphorus losses to water
  477. Soil acidification and the mobilisation of toxic metals caused by acid deposition and fertiliser application
  478. Atmospheric deposition and its impacts on soil and soil processes
  479. Tris is a competitive inhibitor of K+ activation of the vacuolar H+-pumping pyrophosphatase
  480. Accumulation of a novel PR1 protein of Nicotiana langsdorfii leaves in response to virus infection or treatment with salicylic acid
  481. Aspects of soil fertility in the interpretation of yield maps as an aid to precision farming
  482. Cloning and characterisation of a novel P-glycoprotein homologue from barley
  483. Genetic transformation of the C3-C4 intermediate plant, Flaveria pubescens (Asteraceae)
  484. Phosphate losses in the Woburn erosion reference experiment
  485. Effectiveness and genetic diversity of Rhizobium leguminosarum bv trifolii isolates in Portuguese soils polluted by industrial effluents
  486. Microbial parameters as indicators of toxic effects of heavy metals in the soil ecosystem
  487. Losses of phosphorus in drainage water
  488. Glutathione-dependent detoxification of xenobiotics: the role of vacuolar compartmentation
  489. Compartmentation of detoxified xenobiotics in plant cells
  490. Involvement of cytochrome P450 in glucosinolate biosynthesis in white mustard - a biochemical anomaly
  491. Decoherence - a useful paradigm for modellers?
  492. Optimal weighting of information in marker-assisted selection
  493. Soil resources and their assessment
  494. Regression and functional relations
  495. Climatic connections in inter-annual variability for the marine and land environment
  496. Eliminating pond differences with cross-over designs
  497. Using Genstat to fit continuous actuarial distributions
  498. The entry, description and extraction of data by accessing the ERA database from the world wide web
  499. Inversion of matrices with contents subject to modulo arithmetic
  500. A rational strategy for determining the number of cores for bulked sampling of soil
  501. Extraction, isolation and composition of oviposition-deterring secretion of cabbage seed weevil Ceutorhynchus assimilis
  502. Genstat for windows - an introductory course
  503. Models to estimate maternal effects for juvenile body weight in broiler chickens
  504. Effects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae ) on oilseed rape (Brassica napus )
  505. A bioassay for screening materials influencing feeding in the field slug Deroceras reticulatum (Müller) (Mollusca: Pulmonata)
  506. Growth of sugar beet in 1996
  507. Aphid infectivity and virus yellows forecasting
  508. The sex life of a sugar beet
  509. Pests and diseases of sugar beet: a review of 1996
  510. Siring efficiency in white clover (Trifolium repens )
  511. Estimating yield loss from light leaf spot (Pyrenopeziza brassica ) on winter oilseed rape
  512. Exposure of asthmatic and non-asthmatic housewives to fungal propagules in Mexico City
  513. Indoor and outdoor airborne fungal propagule concentrations in Mexico City
  514. Electrophysiological responses of male potato cyst nematodes, Globodera rostochiensis and G. pallida , to some chemicals
  515. Tritrophic interactions: improving ecological understanding and biological control?
  516. Discrimination of oilseed rape volatiles by the honeybee: combined chemical and biological approaches
  517. Estimating chaos in an insect population
  518. Statistical aspects of field experiments
  519. Effects of commercial insecticide treatments to winter oilseed rape on parasitism of Ceutorhynchus assimilis Paykull (Coleoptera: Curculionidae) by Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae)
  520. Activity of MON48500, UK657 and FOE5043 on herbicide-resistant black-grass (Alopecurus myosuroides )
  521. Occurrence of herbicide-resistant black-grass by 1995: a compilation of results from all organisations and companies which conducted screening assays
  522. Physical factors in the dispersal of aerobiological particles
  523. Modelling the dispersal of fungal spores and pollens by wind
  524. Genotypic variation among different phenotypes within aphid clones
  525. Painting as an aid in identifying fungal spores
  526. Detection of airborne allergens
  527. Fungi and actinomycetes as allergens
  528. Health hazards from airborne fungal spores
  529. Occurrence of barley yellow mosaic and barley mild mosaic bymoviruses in Greece
  530. Why and how have the winter type white lupins been developed?
  531. Potential use of plant root pathogens as bioindicators of soil health
  532. The lipid content and fatty acid composition of hatched second stage juveniles of Globodera rostochiensis and G. pallida
  533. Higher plants as a clean source of semiochemicals and genes for their biotechnological production
  534. Temperature and effects of seed-borne Botrytis cinerea or Alternaria linicola on emergence of linseed (Linum usitatissimum ) seedlings
  535. A novel technique to study fungal growth and mycotoxin production on agar
  536. Growth and co-production of aflatoxins and cyclopiazonic acid by Aspergillus flavus
  537. The influence of environmental factors on the persistence of Zoophthora radicans conidia
  538. Predicting severe light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the U.K.
  539. Structure and organisation of amplicons containing the E4 esterase genes responsible for insecticide resistance in the aphid Myzus persicae (Sulzer)
  540. How to avoid bad statistics
  541. Serological identification and quantification of Heterodera avenae from processed soil samples
  542. Techniques in the study of insect pollination
  543. Observations on two commercial flower mixtures as food sources for beneficial insects in the UK
  544. Recent research on varroa and viruses at Rothamsted
  545. Changing countryside - changing forage for bees (parts 1 & 2)
  546. Influence of urban climate upon distribution of airborne Deuteromycete spore concentrations in Mexico City
  547. Contact with the host plant enhances aphid survival at low temperature
  548. Effect of wind on the dispersal of oospores of Peronosclerospora sorghi from sorghum
  549. Comparisons of isolates of the take-all fungus, Gaeumannomyces graminis var. tritici , from different cereal sequences using DNA probes and non-molecular methods
  550. Secondary infections and diseases associated with Varroa jacobsoni
  551. Varroa and viruses
  552. Fungally-transmitted mosaic viruses of barley
  553. Sampling and rapid assay of bioaerosols (Journal of Aerosol Science Special Issue Vol. 28(3), April 1997)
  554. Changing countryside - changing forage for bees
  555. Nematodes: harmful and beneficial organisms
  556. Ground predators
  557. Butterflies
  558. Moths
  559. 'Push-Pull' strategies for pest control
  560. The effect of climate change on an aphid-coccinellid interaction
  561. Strain differences between isolates of barley yellow mosaic virus in China
  562. Characterisation of UK isolates of barley yellow mosaic virus
  563. Advanced studies on Nacobbus aberrans using scanning electron microscopy
  564. The occurrence of aphid parasitoids in arable crops in northern Pakistan
  565. Electrophysiological responses of Brugia pahangi to ivermectin
  566. Organic geochemical studies of soils from the Rothamsted Classical experiments. I. Total lipid extracts, solvent insoluble residues and humic acids from Broadbalk Wilderness
  567. Pathways for the permeation of Na+ and Cl- into protoplasts derived from the cortex of wheat roots
  568. Phosphorus loss from soil to water
  569. Genetic manipulation of photosynthesis in the C4 plant Flaveria bidentis
  570. Enhanced daytime starch turnover provides carbon for sucrose synthesis in transgenic tobacco with low triose phosphate translocator activity
  571. Sugar repression of photosynthesis: the role of carbohydrates in signalling nitrogen deficiency through source/sink imbalance
  572. Development of an acute and chronic ecotoxicity assay using lux -marked Rhizobium leguminosarum biovar trifolii
  573. Rubisco: attempts to reform a promiscuous enzyme
  574. Heavy metal uptake and chemical changes in the rhizosphere of Thlaspi caerulescens and Thlaspi ochroleucum grown in contaminated soils
  575. Expression of CYP71B7, a cytochrome P450 expressed sequence tag from Arabidopsis thaliana
  576. Synthesis of 2'-carboxy-D-arabinitol-1-phosphate in French bean (Phaseolus vulgaris L.): a search for precursors
  577. Cadmium and zinc in plants and soil solutions from contaminated soils
  578. The plant vacuole (Advances in Botanical Research, Vol. 25)
  579. Sucrose storage in sugar beet
  580. Solute composition of vacuoles
  581. Agriculture and fisheries
  582. Hamamelose is actively metabolised in leaves and involved in regulation of photosynthesis
  583. Importance of farming practice on the isolation frequency of Thermoactinomyces species
  584. Proline biosynthesis in the developing wheat embryos
  585. The use of infra-red gas analysis to measure rates of photosynthesis of plants
  586. Detoxification of xenobiotics by plants: chemical modification and vacuolar compartmentation
  587. Detoxification of xenobiotics in plant cells by glutathione conjugation and vacuolar compartmentation: a fluorescent assay using monochlorobimane
  588. Analysis of monoterpenoids in glandular trichomes of the catmint Nepeta racemosa
  589. Spatially distinct expression of two new cytochrome P450s in leaves of Nepeta racemosa : identification of a trichome-specific isoform
  590. Biosynthesis of benylglucosinolate, cyanogenic glucosides and phenylpropanoids in Carica papaya
  591. Genetic manipulation of photosynthesis to study carbon assimilation, metabolism, growth and allocation
  592. Studies on naturally occuring inhibitors of Rubisco
  593. Multiple inward channels provide flexibility in Na+/K+ discrimination at the plasma membrane of barley suspension culture cells
  594. A critical review of the value of buffer zone environments as a pollution control tool
  595. Using models in risk assessment of pollutant losses from agricultural land to water
  596. Detecting chaotic dynamics of insect populations from long-term survey data
  597. Likelihood ratio tests for fixed model terms using residual maximum likelihood
  598. Structure of a Genstat userfile
  599. Gibbs sampling, adaptive rejection sampling and robustness to prior specification for a mixed linear model
  600. Strengthening biometry to improve the quality of agricultural research
  601. Strengthening biometry and statistics in agricultural research. Summary report and recommendations of a CTA/University of Hohenheim workshop
  602. Interactions between two aphid natural enemies, the entomopathogenic fungus Erynia neoaphidis Remaudiere & Hennebert (Zygomycetes: Entomophthorales) and the predatory beetle Coccinella septempunctata L. (Coleoptera: Coccinellidae)
  603. Nectar and flower production in Vicia faba L. (field bean) at ambient and elevated carbon dioxide
  604. Multivariate spatial analysis of a pollen core
  605. Multivariate, autocorrelation and spectral analyses of a pollen profile from Scotland and evidence for periodicity
  606. How big should on-farm trials be and how many plots should be measured?
  607. The potassium, sodium, magnesium, calcium and phosphate nutrition of sugarbeet (Beta vulgaris ) grown on soils containing incorporated straw
  608. First steps in the use of aphid sex pheromones
  609. Studies on the persistence of rape seeds (Brassica napus L.), emphasizing their response to light
  610. "Inchworm, inchworm, measuring the marigolds...": biometry in action. (University of Greenwich Inaugural Lecture Series)
  611. Desiccation survival and water contents of entomopathogenic nematodes, Steinernema spp. (Rhabditida: Steinernematidae)
  612. Comparison of commonly used samplers with a novel bioaerosol sampler with automatic plate exchange
  613. Harmonic radar: a new technique for investigating bumblebee and honey bee foraging flight
  614. Desiccation survival of populations of the entomopathogenic nematodes Steinernema feltiae and Heterorhabditis megidis from Greece and the UK
  615. Characterisation of Nacobbus aberrans from Mexico and South America
  616. Guest editorial
  617. Changes in parasite gene expression in response to host-derived stimuli
  618. Changes in gene expression during stimulation and hatching of the potato cyst nematode Globodera rostochiensis
  619. Effects of temperature, water activity and incubation time on production of aflatoxins and cyclopiazonic acid by an isolate of Aspergillus flavus in surface agar culture
  620. Immunoassays for the quantification of plant parasitic nematodes and their potential application to Nacobbus aberrans
  621. Modulated immunogenicity of a 27kDa Schistosoma mansoni larval protease associated with protective immunity
  622. The relationship between pellet size and the quantity of imidacloprid applied to sugar beet pellets and the consequences for seedling emergence
  623. Identification and characterisation of Meloidogyne incognita secretions using monoclonal antibodies
  624. The agronomy of some herbaceous crops grown for energy in Southern England
  625. Pathogenicity of fungi associated with winter loss and injury in white lupin
  626. Impact assessment for participatory research
  627. Residual maximum likelihood estimation of (Co) variance components in multivariate mixed linear models using average information
  628. Assessing the risk of soil contamination in the Swiss Jura using indicator geostatistics
  629. Requirements for effective modelling strategies
  630. Comparative performance of British hill sheep breeds and crosses
  631. Biotechnology of wheat quality
  632. The natural history of salicylic acid: plant product and mammalian medicine
  633. Regulation of Rubisco by inhibitors in the light
  634. Molecular investigations of plant cytochrome P450. PhD thesis, University College London
  635. The value of long-term field experiments in agricultural, ecological and environmental research
  636. Buffer zones: current concerns and future directions
  637. Introduction
  638. Turnover of plant plasma membrane transporters. PhD thesis, Oxford Brookes University
  639. Evaluation of techniques for screening the ability of rice roots to grow against mechanical impedance
  640. Iron uptake in wheat. PhD thesis, Kings College University of London
  641. Buffer zones: their processes and potential in water protection
  642. Dual resistance threat to insecticides' efficacy
  643. The recovery of 15N-labelled fertilizer applied to Miscanthus x giganteus
  644. A decision-support system for pesticide environmental preregistration assessment
  645. A revised polytomous key for the identification of the genus Longidorus Micoletzky, 1922 (Nematoda: Dorylaimoidea)
  646. Sugar repression of photosynthesis: the role of carbohydrates in signalling nitrogen deficiency through source:sink imbalance
  647. Analysis of hatching and lipid content of potato cyst nematodes (Globodera spp.)
  648. Chemical studies on cyclopentanoid biosynthesis
  649. The practicality of managing herbicide resistance in black-grass and other grass-weeds: research background
  650. Statistical literature for participatory on-farm research
  651. Optimizing plot size and shape for field experiments on terraces
  652. Biomass carbon measurements and substrate utilization patterns of microbial populations from soils amended with cadmium, copper or zinc
  653. Monitoring population change and diversity
  654. The butterflies and moths of Bedfordshire
  655. Control of aphids and barley yellow dwarf virus in spring-sown cereals
  656. The importance of patch mapping resolution for sprayer control
  657. Prospects for developing a forecasting scheme to optimise use of fungicides for disease control on winter oilseed rape in the UK
  658. Gaseous nitrogen exchange with intensive grazed grassland
  659. Integration of soil testing and modelling as a basis for fertiliser recommendations for grassland
  660. Developing fertiliser recommendations for grassland
  661. On-farm evaluation of N fertiliser patterns for grazed grassland as prescribed by a simulation model for optimal efficiency of N use
  662. Utilization of slurry on grazed and silage grass during the growing season
  663. Net mineralisation in grassland soils: effect of cultivation
  664. The potential of lotus species as low-input forage legumes
  665. Predicting the contribution of N supplies from organic matter in grassland soils
  666. Phosphorus loss from grassland soils: implications of land management for the quality of receiving waters
  667. Optimising nitrogen flows in mixed farming systems
  668. Nutrition of goats
  669. A structure for modelling post-absorptive nitrogen metabolism in the lactating dairy cow
  670. Experimental and monitoring studies of the use of raised water-levels for grassland rehabilitation in lowland ESAs
  671. Diagnostic requirements for N management in grasslands
  672. Applications of biomathematics to rumen microbiology
  673. Quantification of nitrogen dynamics in ecological mixed farming systems
  674. White clover in organic farming
  675. Effects of farming system on vegetation of field margins
  676. Whole farm nutrient budgets: a case study at Duchy home farm
  677. Flora
  678. Soils and nutrient flows
  679. Variation of leaf N isotope composition in relation to clover density
  680. Variation in 15N natural abundance of soil, humic fractions and plant materials in disturbed and undisturbed grasslands
  681. Use of GPS to identify the grazing areas of hill sheep
  682. Use of cues by grazing animals to locate food patches: an example with sheep
  683. Use of an electronic nose to measure odour concentration following application of cattle slurry to grassland
  684. Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil
  685. Uptake of amino nitrogen by Lolium perenne L.
  686. Understanding why grazing sheep prefer mixed diets: a requirement for continual sampling of foraging space?
  687. Understanding the links between physiological responses, stress and community ecology in grassland
  688. Understanding the links between physiological responses, stress and community ecology in grassland communities
  689. Trials to evaluate cultural control methods for docks
  690. Transfer of phosphorus from soil to water: implications for use of fertilisers
  691. The way forward with environmentally sensitive areas
  692. The use of natural abundance of 15N to study gross N transfers in grass-clover mixtures
  693. The role of grasslands adjacent to farm buildings and slurry spreading in capturing emitted ammonia
  694. The response to S of a cut ryegrass pasture in south west England
  695. The potential of white clover
  696. The potential of a clover:cereal bi-cropping system to produce high quality whole-crop silage
  697. The potential for nitrate leaching in reseeded swards
  698. The importance and potential of endophytic fungi in grassland in England and Wales
  699. The frit-fly menace
  700. The fate of nitrogen from organic manures
  701. The extent and pathways of transfer of organic N from fertilised and unfertilised grassland
  702. The effect of weather on nitrate leaching from grassland
  703. The effect of soil warming on the 13C and 14C content in soil leachates from three British upland soils
  704. The effect of level of concentrate offered in parlour on intake and grazing behaviour by lactating dairy cows
  705. The development of user friendly systems for on-farm estimation of the available nitrogen content in solid manures and slurries
  706. The agricultural productivity of lowland semi-natural grassland: a review
  707. Sward state and ingestive behaviour by Friesian dairy heifers under rotational grazing
  708. Suitability of wild flower species for introduction on sites targeted for increased biodiversity
  709. Spatial variability of nitrous oxide fluxes from grasslands: differences between soil types
  710. Sources of variation in ammonia emission factors for manure applications to grassland
  711. Soil-derived phosphorus in surface runoff from grazed grassland
  712. Soil seed banks in European grassland: does land use affect regeneration perspectives?
  713. Soil derived phosphorus in surface runoff from grassland lysimeters
  714. Slurry management for grazing pastures
  715. Size distribution of colloidal molybdate reactive phosphorus in river waters and soil solution
  716. Short range deposition of ammonia from grazing animals
  717. Re-seeding early will save you money
  718. Review of recent MAFF and other UK research on biodiversity relevant to ESA management
  719. Response of soil microbial biomass to fertilizer
  720. Report on a visit to Halle, Germany, to discuss research on fungal endophytes in grasses, 10-12 November 1997
  721. Report on a visit to New Zealand: a British Council funded exchange with additional support from a Stapledon Travelling Fellowship and BGS Bursary, 29 November 1996 - 6 January 1997
  722. Relationship between soil nutrients and plant diversity in grasslands: definition of limits for the maintenance and the reconstruction of species-rich communities
  723. Reduction of odorous compounds in pig manure by lowering dietary crude protein
  724. Reducing nitrogen emissions from complete dairy farm systems
  725. Recent and on-going research with Lotus (Birdsfoot trefoil) at IGER
  726. Rates of passage of digesta in sheep grazing grass or white clover
  727. Rapid methods for slurry nitrogen analysis
  728. Rapid determination of dissolved organic phosphorus in soil leachates and runoff waters by flow injection analysis with on-line photo-oxidation
  729. Protein crops for ruminants
  730. Preliminary investigation of breath sampling as a monitor of health in dairy cattle
  731. Potential of fungal endophytes in breeding grasses with improved persistence
  732. Phosphorus losses from grassland soils: new understanding and concepts
  733. Phosphorus leaching below grassland soils
  734. Pests of grass and forage crops
  735. Pests and diseases of grassland
  736. Performance of sheep in simple spatial memory tasks
  737. Occurrence of Acremonium endophytes in wild populations of Lolium spp. in European countries and a relationship between level of infection and climate in France
  738. Nitrous oxide emissions from grazed grassland
  739. Nitrous oxide emissions from excreta from a simulated grazing pattern and fertilizer application to grassland
  740. Nitrous oxide and ammonia emissions from grassland following applications of slurry: potential abatement practices
  741. Nitrogen flows in mixed farming systems
  742. Nitrate leaching from sandy loam soils under a double-cropping forage system estimated from suction-probe measurements
  743. Nitrate leaching from grassland receiving conventional and model-prescribed patterns of N fertilizer
  744. New developments with whole-crop silage
  745. N2O, NO and NO2 fluxes from a grassland: effect of soil pH
  746. N cycle: the nitrogen cycle in grazed grassland
  747. Multi-site experiments on the restoration of botanically diverse grassland in ESAs
  748. Models for interpreting in vitro gas production profiles from ruminant feeds
  749. Modelling post-absorptive protein and amino acid metabolism in the ruminant
  750. Model of milk protein synthesis. A mechanistic model of milk protein synthesis in the lactating bovine mammary gland
  751. Mineralisation of organic nitrogen from animal manures
  752. Methane production by grazing livestock
  753. Methane emissions from grazing sheep and calves
  754. Methane and nitrous oxide emissions following applications of manures to grassland
  755. Measurement of intake rate, bite mass and bite rate by grazing dairy cows and the effect of time of day
  756. Mass balances of phosphorus in dairy farm soils
  757. Managing daily intake by dry cows when grazing
  758. Management for plant and butterfly species diversity on organically farmed grassland field margins
  759. Lowland wet grasslands in ESAs
  760. Long-term impacts of elevated CO2 interacting with N availability on the sequestering of carbon in grassland soil
  761. Limitations of palatability as a concept in food intake and diet selection studies
  762. LEGSIL legume silages for milk production
  763. Ionic contents of leachate from grassland soils: a comparison between ceramic suction cups and drainage
  764. Introduction of annual forage species (Secale cereale and Lolium multiflorum ) into permanent swards: a technique to improve early season herbage production and nitrogen uptake
  765. Integration of in vitro parameters by mechanistic modelling to predict recycling of microbial nitrogen in the rumen
  766. Integrated modelling and soil testing for improved fertilizer recommendations for grassland
  767. Individual amino acid 15N/14N analysis at natural abundance levels: a new tool for soil organic matter dynamics studies in agricultural systems
  768. Incipient S deficiency in the grassland soils of SW England
  769. Impact of pests and diseases on survival and growth of white clover seedlings - results of experiments 1997
  770. Impact of inorganic fertiliser on soil seed bank of species-rich meadows on the Somerset levels and moors ESA
  771. Impact of inorganic fertilizer on soil seed bank of species-rich meadows on the Somerset Levels and Moors ESA
  772. Impact of diet-specific input parameters on simulated rumen function
  773. Herbage varieties and species - achievements and future opportunities
  774. Grazing behaviour of ruminants
  775. Grassland management systems based on low inputs of fertilizer and utilization of slurry
  776. Grassland management practices and their effects on botanical composition
  777. Grass and forage crops
  778. Gradients of atmospheric ammonia concentrations and deposition downwind of ammonia emissions: first results of the ADEPT Burrington Moor experiment
  779. Gaseous Nitrogen Emissions from Grasslands
  780. Exploitation of a sustainable low-input and reduced output system for arable crops
  781. Exploitation of a sustainable low-input and reduced output system for arable crops
  782. Experimental and monitoring studies of the use of raised water-levels for grassland rehabilitation in lowland ESAs
  783. Evaluation of a model integrating protein and energy metabolism in preruminant calves
  784. Evaluation of a fungal endophyte (Neotyphodium lolii ) for control of leatherjackets (Tipula spp.) in perennial ryegrass
  785. Estimation of biochemical oxygen demand in slurry and effluents using ultra-violet spectrophotometry
  786. Establishing guidelines for reducing adult Sitona weevil damage in the field
  787. Emission processes and their interactions in grassland soils
  788. Efficient milk production from grass
  789. Efficiency in grassland systems for production and the environment
  790. Effects of spring fertilizer nitrogen and sward height on production from perennial ryegrass/white clover swards grazed by beef cattle
  791. Effects of method and time of slurry application to grassland on silage quality
  792. Effects of long-term fertilizer and manure treatments on the distribution and 15N natural abundance of amino acids in the Palace Lease meadow hay plots
  793. Effects of long-term nitrogen management strategies on 15N natural abundance and distribution of amino acids in agricultural soils
  794. Effects of including yarrow and chicory in grass/white clover swards fertilized with cattle slurry
  795. Effects of abomasal fat infusion on dry matter intake, milk production and splanchnic metabolism in dairy cows at two stages of lactation
  796. Effect of timing of slurry spreading on production in dairy cows
  797. Effect of the arbuscular mycorrhizal fungus Glomus fasciculatum on the uptake of amino nitrogen by Lolium perenne L.
  798. Effect of sward surface height on intake and grazing behaviour by lactating Holstein Friesian cows
  799. Effect of fungicide seed treatments on establishment of cocksfoot and timothy
  800. Effect of dicyandiamide on Nitrous oxide flux following return of animal excreta to grassland
  801. Does supplementation with different feed types alter the preference by grazing ewes for grass and clover?
  802. Diversity of plant and butterfly species on organic farmland field margins in relation to management
  803. Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover
  804. Distinguishing bites and chews in recordings of the grazing jaw movements of cattle
  805. Dissolved humic substances in water from drained and undrained grazed grassland in SW England
  806. Dietary preferences of domestic ruminants
  807. Diet preferences of adult sheep and goats grazing ryegrass and white clover
  808. Development of a helium atmosphere soil incubation technique for direct measurement of nitrous oxide and dinitrogen fluxes during denitrification
  809. Determination of total dissolved phosphorus in soil solutions
  810. Determination of controls over denitrification using a flowing helium atmosphere system
  811. Description of a model integrating protein and energy metabolism in preruminant calves
  812. Decrease in potassium availability in species-rich hay meadows at Tadham on the Somerset levels and Moors - cause for concern?
  813. Decrease in potassium availability in species-rich hay meadows at Tadham on the Somerset levels and moors - cause for concern?
  814. Decomposition of tree leaf litters in mixtures: CO2 and N release
  815. Cultural methods of dock control in permanent pasture
  816. Control of odours by dietary manipulation
  817. Control by dietary manipulation of emissions from pig slurry following landspreading
  818. Compound-specific delta15N amino acid signals in palaeosols as indicators of early land use: a preliminary study
  819. Compound specific 15N/14N amino acid analysis at natural abundance levels: a new tool for soil organic matter dynamic studies in agricultural systems
  820. Comparison of the herbage yields of three kale (Brassica oleracea L.) cultivars
  821. Comparison of the effect of slurry application techniques on ammonia volatilization
  822. Clover:cereal by-cropping - the effect on carabid beetle predatory ability
  823. Clover:cereal bi-cropping with reduced agrochemical inputs - the yields and costs
  824. Clover:cereal bi-cropping
  825. Clover:cereal bi-cropping
  826. Clover:cereal bicropping: the effect on carabid beetle predation efficiency
  827. Clover:cereal bi-cropping
  828. Characterisation of odorous compounds and emissions from slurries produced from weaner pigs fed dry feed and liquid diets
  829. Causes of inaccurate prediction of volatile fatty acids by simulation models of rumen function in lactating cows
  830. Carabid beetles in a bi-cropping system
  831. Carabid beetles in a bi-cropping system
  832. Bite dimensions and grazing severity for cattle and sheep
  833. Biogeochemical significance of membrane and ultrafilter separation of low-molecular-weight molybdate-reactive phosphorus in soil and river waters
  834. Benefits of including yarrow and chicory in grass/white clover swards fertilized with cattle slurry
  835. Behavioural strategies of dairy cows grazing swards of different surface heights
  836. Avoiding pollution with P on grassland
  837. Association learning by sheep for discriminating between ryegrass and white clover
  838. Application of unsupervised clustering methods to the assessment of malodour in agriculture using an array of conducting polymer odour sensors
  839. Animal manure management and nitrogen supply
  840. Animal grazing/intake terminology and definitions
  841. An evaluation of different mathematical approaches to predicting microbial protein supply in ruminants
  842. An automatic system to record foraging behaviour in free-ranging ruminants
  843. An automatic system to monitor lying, standing and walking behaviour of grazing animals
  844. An algorithm for the automatic processing of recordings of foraging behaviour by cattle
  845. Ammonia emissions from beef cattle bedded on straw
  846. Ammonia emissions from hardstandings used by cattle
  847. Ammonia emissions following the land spreading of solid manures
  848. Ammonia emission factors for N fertilizers applied to two contrasting grassland soils
  849. Agriculture as a source of phosphorus transfer to water: sources and pathways
  850. Agriculture as a source of phosphorus pollution in water
  851. Activity bout criteria for grazing dairy cows
  852. Acceptability of Lotus spp. as a food source for two species of lepidopteran larvae
  853. Absence of carbon isotope fractionation of individual n-alkanes in a 23 year field decomposition experiment with Calluna vulgaris
  854. A spatially explicit simulation of herbivore-sward interactions
  855. A simple technique for recording root and shoot growth in plants
  856. A review of insect and slug damage to white clover (Trifolium repens ) in the UK
  857. A model to describe growth patterns of the mammary gland during pregnancy and lactation
  858. A model for quantifying the contribution of extracellularly-derived peptides to milk protein synthesis in the ruminant mammary gland
  859. A life in clover
  860. A farm-scale study on the use of clinoptilolite zeolite and DeOdorase (R) for reducing odour and ammonia emissions from broiler houses
  861. A comparison of triple superphosphate and Gafsa ground rock phosphate fertilisers as P-sources for grass-clover swards
  862. A comparison of animal output and nitrogen leaching losses recorded from drained fertilized grass and grass/clover pasture
  863. Abstracts of Communications. Proceedings of the Twenty-Ninth Meeting of the Agricultural Research Modellers' Group
  864. The biology of Sitona weevils in forage legumes