1. An homogeneous radioimmunoassay for abscisic acid using a scintillation proximity assay technique
  2. Printing of bit patterns
  3. Construction of irredundant test sets
  4. Improvement of persistence and yield of Italian ryegrass (Lolium multiflorum) through pesticide use
  5. The susceptibility of tubers of potato cultivars to black dot (Colletotrichum coccodes (Walk.) Hughes)
  6. The effects of nitrogen and fungicide on cereal aphid population development and the consequences for the aphid-yield relationship in winter wheat
  7. Effects of straw disposal and tillage on spread of barley yellow dwarf virus in winter barley
  8. Impact of the field slug Deroceras reticulatum on establishment of ryegrass and white clover in mixed swards
  9. Effects of rotation length, fungicide treatment of seed tubers and nematicide on diseases and the quality of potato tubers
  10. Long-term stability of distribution of Alopecurus myosuroides huds within cereal fields
  11. An invitro growth system for studying the parasitism of cowpea (vigna-unguiculata) by striga gesnerioides
  12. Dynamics of competition between wild oats (Avena fatua L.) and winter cereals
  13. Seed dormancy and seedling emergence studies in Avena fatua L.
  14. The expression of components of seedling resistance to Erysiphe graminis f. sp. tritici in Triticum timopheevii and a hexaploid derivative
  15. The assessment of infectious-disease for brown rust (Puccinia hordei) of barley
  16. Differences in lamina wettability in some permanent pasture grass species and two Lolium perenne cultivars
  17. Laboratory studies on the effect of potassium carbonate solution on the drying of cut forage
  18. Effect of slowly and rapidly degraded protein sources on the concentrations of amino acids and peptides in the rumen of steers
  19. Effects of grazing and nitrogen-fertilizer on the soil microbial biomass under permanent pasture
  20. A note on the construction of row-and-column designs with two replicates
  21. Scientists and information: II. Personal factors in information behaviour
  22. Scientists and information: I. Using cluster analysis to identify information style
  23. Isolation and characterization of genes encoding rye prolamins containing a highly repetitive sequence motif
  24. Scanning tunneling microscopy of a wheat seed storage protein reveals details of an unusual supersecondary structure
  25. Complementation of snf1, a mutation affecting global regulation of carbon metabolism in yeast, by a plant protein-kinase cDNA
  26. A model to predict transformations and losses of nitrogen in UK pastures grazed by beef-cattle
  27. Induction and characterisation of some of the pathogenesis-related proteins in sugar beet
  28. Occurrence and significance of fungal diseases on linseed and fibre flax in England France and Germany
  29. Splash dispersal of Pseudocercosporella capsellae , cause of white leaf spot of oilseed rape
  30. Biology of three Alternaria speies on linseed: a comparison
  31. Vertilcillium on linseed (Linum usitatissimum ) in the United Kingdom
  32. Les abeilles et la pollinisation de cultures et de fleurs sauvages dans la Communaute Europeenne
  33. Effect of pokeweed antiviral protein (PAP) on the infection of plant viruses
  34. Phytolacca antiviral protein. Complete sequence of cDNA clone
  35. Intercambio K-Ca en arcilla de un suelo osorno
  36. Ecology and population dynamics: Chairman's summing up and comments for the session on ecology and population dynamics
  37. In situ decontamination of heavy metal polluted soils using crops of metal-accumulating plants: a feasibility study
  38. Nuove metodi diagnostici come coadiuvanti nella protezione delle colture
  39. Barley Mild Mosaic Virus detection inside Polymyxa graminis
  40. Studies in the epidemiology of BYDV in spring barley in eastern England
  41. The dispersal of bacteria from leaf surfaces by water splash
  42. Fungal pathogens of grain lupins 1986-1991
  43. Effects of fungicides on eyespot in five successive crops of winter wheat in plots with different initial or fungicide-selected populations of Pseudocercosporella herpotrichoides
  44. Post-invasion interactions between entomopathogenic fungi and their insect hosts
  45. Sunflower - a potential crop for the UK
  46. The possibility of in situ heavy metal decontamination of polluted soils using crops of metal-accumulating plants
  47. The effects of straw disposal and depth of cultivation on the growth, nutrient uptake and yield of winter wheat on a clay and a silt soil
  48. Studies of the distribution and bioavailability of soil zinc fractions
  49. Controversy over sewage sludge
  50. Organic matter/mineral matter in the context of clean technology
  51. Increases in the polychlorinated dibenzo-p-dioxin and -furan content of soils and vegetation since the 1840s
  52. Using a diffusion model to explain the dispersal of pollutants in soil due to cultivation
  53. Molecular structure and properties of xenobiotics in relation to phloem translocation
  54. Biochemical interactions between plant-herbivore-parasitoid
  55. Population dynamics of avocets and the use of simulation models to aid management
  56. Estudio sobre el enterrado de la paja de cereal (2)
  57. Studies on the patterns of nitrogen uptake and translocation to the grain of winter barley intended for malting
  58. Diseased landscapes
  59. Biometry in Bangladesh
  60. A new index of aggregation for animal counts
  61. Genstat news
  62. Genstat
  63. Effects of fungicides, applied in autumn, and a growth regulator, applied in spring, on the growth and yield of winter barley grown on contrasting soil types
  64. New culture medium containing ionic concentrations of nutrients similar to concentrations found in soil solution
  65. Benefits from long-term ecosystem research: some examples from Rothamsted
  66. Development of nematodes on hormone mutants of Arabidopsis
  67. Development of Heterodera schachtii and Meloidogyne incognita on hormone mutants of Arabidopsis thaliana
  68. A model host plant for nematode studies
  69. Mutationen im dpy-13 Kollagen-Gen von Caenorhabditis elegans
  70. Control of potato pale cyst-nematode, Globodera pallida, with a granular nematicide and partially resistant potatoes
  71. The identification and biological activity of the aggregation pheromone of Sitona lineatus
  72. The relationship between the release of ascospores of Sclerotinia sclerotiorum, infection and disease in sunflower plots in the United Kingdom
  73. Protein extraction, separation and visualisation from cyst nematode tissue. Part II of the course potential use of biochemical techniques in nematode characterisation, Universidade de Coimbra, Museu e Laboratorio Zoologico, June 10-21 1991
  74. Morphological identification of cyst nematodes relevant to Western European agriculture. Part I of the course potential use of biochemical techniques in nematode characterization, Universidade de Coimbra, Museu e Laboratorio Zoologico, June 10-21 1991
  75. Sorption of ionisable organic compounds by field soils. Part 2: cations, bases and zwitterions
  76. Sorption of ionisable organic compounds by field soils. Part I: acids
  77. Crop pollination and sustainable agriculture in the nineties and beyond
  78. Bees and the pollination of crop and wild flowers: changes in the European Community: review commissioned by Scientific and Technical Options Assessment, European Parliament
  79. Insect pests of oilseed rape. HGCA oilseeds research review OS1
  80. Beekeeping, wild bees and pollination in the European Community
  81. Bees, pollination and habitat change in the European Community
  82. Bees and the pollination of crop and wild flowers in the European Community
  83. Floral phenology, pollination and fertilization in linseed
  84. N-terminal modification of achetakinin analogues and their effect on fluid secretion in isolated Malpigian tubules
  85. Novel methods of pest and disease control
  86. Organic contaminants in soils and groundwaters
  87. Pathways and mechanisms of transport of herbicides in plants
  88. Behavioral and electrophysiological responses of aphids to host and nonhost plant volatiles
  89. Gas chromatography-mass spectrometry (GC-MS) in insect pheromone identification: three extreme case studies
  90. The role of Rothamsted in making nutrition a science
  91. The efficiency of use of nitrogen fertiliser at Brimstone Farm with special reference to denitrification losses
  92. Persistence and leaching of autumn-applied isoproturon and mecoprop at Brimstone
  93. Transport and fate of isoproturon in a mole drained Denchworth clay soil at Brimstone Farm
  94. Crop yield and uptake of nitrogen
  95. Nitrate leaching
  96. Hydrology and soil physics studies
  97. The Brimstone Experiment: Proceedings of a Conference on Collaborative Work by ADAS Field Drainage Experimental Unit and Rothamsted Experimental Station, October 15-16, 1991
  98. Organic matter turnover and nitrate leaching
  99. A safer procedure for routine staining of vesicular-arbuscular mycorrhizal fungi
  100. User guide: an expert system for the nutrient fertilisation of fruit crops
  101. The ERA database scheme: proposed design for the Electronic Rothamsted Archive
  102. ERA LOADER: data processor for loading the Electronic Rothamsted Archive
  103. ERA JOINER: building data structures for the Electronic Rothamsted Archive
  104. User guide: R$DIGITISE revisited
  105. Envirocon III: design faults
  106. User guide: MPAT data logger input
  107. User guide: laboratory automation system
  108. Technical guide: technical reference for PC-based laboratory automation system
  109. User guide: the MASTER disk database
  110. User guide: how to initialise information for a new harvest year within the Farm Management System
  111. User guide: the BICC 16-bit Ethernet card
  112. Setup guide: PC configuration a guide to setting up (and reinitialising)
  113. Effects of pH, phosphate and manganese on spring-sown Vicia faba L.
  114. Assessing the risks involved in the release of genetically manipulated microorganisms
  115. Assessing the risks involved in the release of genetically manipulated microorganisms
  116. Polymerase chain reaction amplification and cloning of complementary DNA for ferredoxin-dependent glutamate synthase from barley
  117. Plastid genes and parasitic plants
  118. Evidence for the presence of endogenous inducers of the accumulation of pathogenesis-related (PR-1) proteins in leaves of virus-infected tobacco plants and of an interspecific Nicotiana hybrid
  119. Plant growth: interactions with nutrition and environment
  120. Effects of phosphate deficiency on photosynthesis: regulation by stomata, Calvin cycle biochemistry and thylakoid photochemistry
  121. A novel assay for genetic and environmental changes in the architecture of intact root systems of plants grown in vitro
  122. Weed control strategies - research progress
  123. Weed control
  124. The dispersal of weeds: seed movement in arable agriculture
  125. The occurrence of herbicide resistant Alopecurus myosuroides (black-grass) in the United Kingdom and strategies for its control
  126. The development of herbicide-resistant populations of Alopecurus myosuroides (black-grass) in England
  127. Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus
  128. The field survival of conidia of Erynis neoaphidis and their potential as an inoculum for aphid control
  129. Epidemiology of Alternaria species on linseed
  130. Stem nematode (Ditylenchus dipsaci) a pest of faba beans (Vicia faba)
  131. The ecological importance of long-term synoptic monitoring
  132. Delayed density-dependence
  133. Cereal aphids and their natural enemies
  134. The use of pheromones to enhance control of Plutella xylostella with Zoophthora radicans
  135. A method for rearing cereal aphids in a small space
  136. The influence of semiochemicals on the behaviour of cereal aphid parasitoids (Hymenoptera)
  137. Synthetic aphid sex pheromone lures female parasitoids
  138. Production and protection of linseed: research at Rothamsted
  139. Pasteuria penetrans
  140. Insect infestation in linseed: plant injury and distribution within fields
  141. Pest incidence in white lupin (Lupinus albus L.) at Rothamsted and Woburn 1986-1990
  142. Studies on resistance breaking populations morphologically indistinguishable from Meloidogyne incognita
  143. The characterisation of Pasteuria penetrans using a polyclonal antibody and its effect on spore attachment to the second-stage juvenile of Meloidogyne incognita
  144. A parasite of Heterodera avenae similar to Pasteuria penetrans
  145. Field trials with cyst nematodes and laboratory studies with Pratylenchus spp. on oilseed rape
  146. Pest aspects of potato production. Part 1. The nematode pests of potatoes
  147. Agricultural Biology Reviews
  148. Lethal temperatures for eggs of Globodera rostochiensis, determined by staining with New Blue R
  149. The use of soil solarization for control of plant parasitic nematodes
  150. Microbial agents for the biological control of plant-parasitic nematodes in tropical agriculture
  151. Methods for studying nematophagous fungi
  152. Twenty years of moth monitoring at Broom's Barn
  153. Light Trap Newsletter, December 1991
  154. Arabadopsis thaliana as a new model host for plant-parasitic nematodes
  155. Isolation in vitro of Strongwellsea castrans
  156. Isolation and screening of fungi for the biological control of potato cyst nematodes
  157. Plodia interpunctella Hubner, the Indian meal moth (Lep.: Pyralidae) in Bedfordshire
  158. Farming, fertilizers and the nitrate problem
  159. Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus
  160. Weed control in linseed: a review
  161. The leaching of agrochemicals under different agricultural land uses and its effect on water quality
  162. Plant inputs of carbon to metal-contaminated soil and effects on the soil microbial biomass
  163. Effects of heavy metals from past applications of sewage sludge on microbial biomass and organic matter accumulation in a sandy loam and silty loam U.K. soil
  164. Microbial biomass dynamics during the decomposition of glucose and maize in metal-contaminated and non-contaminated soils.
  165. Is the dehydrogenase assay invalid as a method to estimate microbial activity in copper-contaminated soils?
  166. Soils as indicators of Quaternary climatic change in mid-latitude regions
  167. Herbicide tolerance in winter oilseed rape
  168. When do I call in a biometrician?
  169. Compartmental nitrate concentrations in barley root cells measured with nitrate-selective microelectrodes and by single-cell sap sampling
  170. Os nematodes-de-quisto da batateira em Portugal
  171. Amphipoea lucens Freyer, the Large Ear, and A. fucosa Freyer, the Saltern Ear (Lep.: Noctuidae) in Hertfordshire
  172. Farmland Ecology light trap network: interesting Lepidoptera records for September 1990
  173. Eupithecia ultimaria Biosduval (Lepidoptera: Geometri), a third record for the British Isles and the first mainland capture
  174. Sedina buettneri Her., Blair's Wainscot (Lep.: Noctuidae) in Kent
  175. A further record of Pelosia muscerda Hufn., the Dotted Footman (Lep.: Arctiidae) in Kent
  176. A method for rapid fixation and dehydration of nematode tissue for transmission electron microscopy
  177. Use of metal chelates as molluscicides. GB2207866B
  178. Slugging it out
  179. A new approach to the use of meteorological and suction trap data in predicitng aphid problems
  180. Monoclonal antibodies and their use in the identification of root-knot nematodes (Meloidogyne spp.)
  181. Biochemical studies on the attachment of spores of Pasteuria penetrans to the cuticle of root-knot nematodes (Meloidogyne spp.)
  182. Use of monoclonal antibodies in the diagnosis of plant parasitic nematode pests
  183. The Ecology of Temperate Cereal Fields: 32nd Symposium of the British Ecological Society with the Association of Applied Biologists, University of Cambridge, 1990
  184. The epidemiology of cereal viruses
  185. Factors restricting the feeding of the cabbage stem flea beetle (Psylliodes chrysocephala)
  186. Computer models for nitrogen in arable farming
  187. The effect of long-term applications of inorganic nitrogen fertilizer on soil organic nitrogen
  188. Airborne dust, ammonia, microorganisms and antigens in pig confinement houses and the respiratory health of exposed farm workers
  189. Lower terpenoids as natural insect control agents
  190. The nitrate leaching problem - are catch crops the solution?
  191. Sugar beet biotechnology
  192. The force majeure?
  193. Biotechnological advances in sugar beet research
  194. Infection of sugar beet by Polymyxa betae in relation to soil temperature
  195. Effects of starter fertilizers close to the seeds
  196. Should beet crops be green?
  197. Novel approaches to crop protection
  198. Transient expression of foreign genes introduced into barley endosperm protoplasts by PEG-mediated transfer or into intact endosperm tissue by microprojectile bombardment
  199. New approaches to the development of semiochemicals for insect control
  200. Soil microbial biomass dynamics following the addition of cereal straw and other substrates to soils
  201. Relating the nitrogen fertilizer needs of winter wheat crops to the soil's mineral nitrogen. Influence of the downward movement of nitrate during winter and spring
  202. Phenotypic changes in T-cyt-transformed potato plants are consistent with enhanced sensitivity of specific cell types to normal regulation by root-derived cytokinin
  203. Regulation of Agrobacterium tumefaciens t-cyt gene expression in leaves of transgenic potato (Solanum tuberosum L. cv. Desiree) is strongly influenced by plant culture conditions
  204. The effects of increasing CO2 on crop photosynthesis and productivity: a review of field studies
  205. User guide: high CO2 control system
  206. Airborne allergenic microorganisms associated with mushroom cultivation
  207. Detection of pea seed-borne mosaic virus virion and pinwheel inclusion body proteins in leaf and seed tissues of pea (Pisum sativum l) by immunogold labelling
  208. The effect of cooling on photosynthesis, amounts of carbohydrate and assimilate export in sunflower
  209. Pheromones: will their promise in insect pest control ever be achieved?
  210. Prediction of flag-leaf emergence in wheat crops
  211. Age and relationships of the Chillesford Clay (early Pleistocene: Suffolk, England)
  212. Current and future problems in the recognition and interpretation of paleosols
  213. Rothamsted farmland light trap network: interesting Lepidoptera records for August 1990
  214. Second brood Spilosoma lubricipeda L., the White Ermine (Lep.: Arctiidae) in Ayrshire
  215. Notes on the voltinism of Hylaea fasciaria L., Barred Red (Lep.: Geometridae)
  216. Flight behaviour of the bird cherry aphid, Rhopalosiphum padi
  217. Studies on UK isolates of barley yellow mosaic virus
  218. Explicit and implicit loops
  219. Editing data structures
  220. Incidence of pests and diseases and effects of crop protection on double- and single-low winter rape cultivars
  221. Research on pathogens of oilseed rape at Rothamsted
  222. Effects of fungicides and disease on growth parameters and seed glucosinolate concentration of oilseed rape
  223. Accumulation of glucosinolates in oilseed rape leaves as a result of fungal infection
  224. Molluscs as agricultural pests
  225. Moulting of Aphelenchoides hamatus, with especial reference to formation of the stomatostyle
  226. Recent work on honey bee diseases at Rothamsted III: Varroa jacobsoni
  227. The motility, development and infection of Meloidogyne incognita encumbered with spores of the obligate hyperparasite Pasteuria penetrans
  228. The role of the moulted cuticles in the desiccation survival of adults of Rotylenchulus reniformis
  229. The use of DNA probes to identify Ditylenchus dipsaci
  230. Myrosinase activity and glucosinolate content in developing leaves of oilseed rape
  231. Effect of field applications of isothiocyanate precursors on pests and diseases of oilseed rape
  232. Role of esterases in resistance of insects to insecticides
  233. Research into the pollination of alternative crops at Rothamsted
  234. Nitrate: its accumulation and subcellular compartmentation in plant cells
  235. Resistance in Solanum brevidens to both potato virus Y and potato virus X may be associated with slow cell-to-cell spread
  236. Plant regeneration from protoplasts of Solanum species with potential agricultural value (S. hjertingii, S. polyadenium, S. capsicibaccatum)
  237. Expression of wheat gluten proteins in heterologous systems
  238. Establishment of expression and in vitro refolding systems for protein engineering of wheat gluten
  239. Optimum plant densities for three semi-leafless combining pea (Pisum sativum) cultivars under contrasting field conditions
  240. Sample survey principles and methods
  241. Estudia sobre el enterrado de la paja de cereal (1)
  242. Response of plants to elevated carbon dioxide: the role of photosynthesis, sink demand and environmental stresses
  243. The long-term (100 years) accumulation and release of toxic metals in acidified soils under grassland and naturally-regenerating woodland
  244. Fungi in cereal grains: their occurrence and water and temperature relationships
  245. In vivo inhibition of esterase and acetylcholinesterase activities by profenofos treatments in the tobacco whitefly Bemisia tabaci (Genn.): implications for routine biochemical monitoring of these enzymes
  246. Grain fungi
  247. Aerobiology and health: the role of airborne fungal spores in respiratory disease
  248. Potential changes in soil fertility from arable farming including organic systems
  249. Soil fertility and soil organic matter
  250. Soil microbial biomass C, N and ninhydrin-N in aerobic and anaerobic soils measured by the fumigation-extraction method
  251. Managing the nitrogen cycle to minimise losses
  252. The variation in nitrogen economy under different soil management systems
  253. Consequences of the activity of roots on soil
  254. Evaluation of 'Seamac 600' applied to winter barley
  255. Identification of major component of male-produced aggregation pheromone of larger grain borer,Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae)
  256. Characterisation of insect-resistant genotypes of the peach-potato aphid, Myzus persicae, by immunoassay and DNA probing techniques
  257. Barley mild mosaic virus inside its fungal vector, Polymyxa graminis
  258. An assessment of genetic stability of potato in vitro by molecular and phenotypic analysis
  259. Natural occurrence of mycotoxins in growing and conserved forage crops
  260. Electrophysiological recordings of electrical activity and responses to stimulants from Globodera rostochiensis and Syngamus trachea
  261. Factors relating to the development of respiratory symptoms in coffee process workers
  262. Control of virus yellows in sugar beet
  263. Photosynthesis and productivity of cereals at low temperatures in Mediterranean climates: biochemical and physiological adaptation
  264. Contribution of straw-derived N to total microbial biomass N following incorporation of cereal straw to soil
  265. Europe goes green to control beet cyst nematode
  266. Tefluthrin:- a new seed treatment to protect sugar beet crops
  267. Powdery mildew: predictions past and future
  268. Fertiliser placement: what can it achieve for sugar beet?
  269. Weed beet on the wane?
  270. Controlling manganese deficiency in sugarbeet with foliar sprays
  271. The effect of beet cyst nematode, Heterodera schachtii, on the yield of sugar beet in organic soils
  272. Forecasting the national incidence of sugar-beet powdery mildew from weather data in Britain
  273. Analysis of disease-progress curves for take-all in consecutive crops of winter wheat
  274. Weather focus
  275. Weather focus
  276. Brighton 1990: a report from the Brighton Crop Protection Conference on Pests and Diseases
  277. The IIRB Breeding and Genetics Study Group
  278. A tale of two epidemics
  279. Broom's Barn Report for 1990 (Extracts from AFRC Institute of Arable Crops Research Report for 1990)
  280. Sugar-beet seed steep treatments to improve germination under cold, wet conditions
  281. Crown pests before they eat your beet
  282. Forum: Nothing new under the greenhouse - A historial turn around the carbon cycle
  283. Rothamsted Experimental Station archives
  284. The differential expression of the genes encoding glutamine synthetase in developing root nodules. PhD thesis, University of Durham
  285. Operational guide: ARCOM plant monitor
  286. Factors influencing rates of degradation of an arylamide in subsoils
  287. The implications of canopy structure for performance and yield
  288. Spatial analysis and mapping the annual mean concentrations of acidity and major ions in precipitation over the United Kingdom in 1986
  289. Feeding, flight and dispersal in thrips
  290. Towards Understanding Thysanoptera: Proceedings, International Conference on Thrips, February 21-23 1989, Burlington, Vermont
  291. Planning strategies for agricultural research
  292. The Aphelenchina: bud, leaf, and insect nematodes
  293. Viruses of honey bees
  294. Genstat news
  295. Computing experience Down Under
  296. Arable crops and farming practices: effects on nitrate in arable soils
  297. Expression of glutamine synthetase genes from Phaseolus vulgaris L. in transgenic plants
  298. Late captures of Hepialus fusconebulosa De Geer, the Map-winged Swift (Lep.: Hepialidae)
  299. Rothamsted farmland light trap network: interesting Lepidoptera records for July, 1990
  300. Peridea anceps Goeze, the Great Prominent, f. fusca Cockayne (Lep.: Notodontidae) in Stirlingshire
  301. A model for calculating the nitrogen requirement of cereals
  302. Monitoring and forecasting aphid problems
  303. Serological relationships between five fungally transmitted cereal viruses and other elongated viruses
  304. Wind dispersal of pollen from crops of oilseed rape (Brassica napus L.)
  305. Fungally-transmitted mosaic viruses of barley
  306. Two new records of nematodes associated with azaleas in England: Paratrichodorus renifer Siddiqi, Tylenchorhynchus claytoni Steiner
  307. A first record of the root lesion nematode, Pratylenchus bolivianus Corbett in England and Wales
  308. Use of microwave energy to aid the fixation of nematode tissue for transmission electron microscopy
  309. Volatile analogues of penconazole and their activity against the take-all fungus, Gaeumannomyces graminis var. tritici
  310. Deposition and longevity of oviposition-deterring pheromone in the cabbage seed weevil
  311. Airborne dissemination of plant fungal pathogens
  312. Survey of fertiliser practice: fertiliser use on farm crops in England and Wales 1990
  313. Aphid borne viruses: what's the forecast?
  314. Cytosolic calcium homeostasis in fungi: roles of plasma membrane transport and intracellular sequestration of calcium
  315. Measurement of intracellular nitrate concentrations in Chara using nitrate-selective microelectrodes
  316. A point mutation in the N-terminus of ribulose-1,5-bisphosphate caboxylase affects ribulose-1,5-bisphosphate binding
  317. Growth responses of mycorrhizal and non-mycorrhizal tropical forage species to different levels of soil phosphate
  318. User guide: using the HP Scanjet Plus
  319. Natural history of the butterflies and moths of Shropshire
  320. Stomatal and mesophyll limitations of photosynthesis in phosphate deficient sunflower, maize and wheat plants
  321. Prediction of eyespot severity on winter wheat or winter barley inoculated with W-type or R-type isolates of Pseudocercosporella herpotrichoides
  322. User guide: PC Rainbow software: installation and user guide
  323. User guide: label creation in WordPerfect 5.1
  324. Effect of surface sterilization, fumigation and gamma irradiation on the microflora and germination of barley seeds
  325. Honey bee pathology
  326. Methods for studying the growth and survival of the nematophagous fungus, Verticillium chlamydosporium Goddard, in soil
  327. Estimation of suppressiveness and isolation of fungal parasites of cyst nematodes
  328. Nitrogen fixation, assimilation and transport during the initial growth phase of Phaseolus vulgaris L.
  329. Variation in the glucosinolate content of oilseed rape (Brassica napus L.) leaves. II. Response to infection by Alternaria brassicae (Berk.) Sacc.
  330. Variation in the glucosinolate content of oilseed rape (Brassica napus L.) leaves. I. Effect of leaf age and postition
  331. Use of API-Zym strips and 4-nitrophenyl substrates to detect and quantify hydrolytic enzymes in media and grain colonized with Aspergillus, Eurotium and Penicillium species
  332. Simulation of solute leaching in soils of differing permeabilities
  333. Nutrient compartmentation in cells and its relevance to the nutrition of the whole plant
  334. Survey of fertiliser practice: fertiliser use on farm crops in Scotland 1990
  335. Biological control of the beet cyst nematode
  336. Concepts of nutrition in relation to cellular processes and environment
  337. Model estimates of CO2 emissions from soil in response to global warming
  338. Monitoring and forecasting aphid problems
  339. Further notes on Drepanepteryx phalaenoides (L.)(Neuroptera: Hemerobidae) in Hertfordshire
  340. In vitro germination of single conidia of the aphid-pathogenic fungus Erynia neoaphidis and phenotypic variation among sibling strains
  341. Transmission of plant viruses by fungi
  342. A method for assessing the goodness of computer simulation of soil processes
  343. Significance of atmospheric inputs of lead to grassland at one site in the United Kingdom since 1860
  344. Selection for virulence in the potato cyst-nematode, Globodera pallida
  345. The resistance of six potato cultivars to English populations of potato cyst-nematodes, Globodera pallida and G. rostochiensis
  346. Effects of rotation length and oxamyl on potato yield and the potato-cyst nematode, Globodera rostochiensis, in a sandy loam soil.
  347. The Rothamsted soil and crop nitrogen service on Viewdata 1985-1989
  348. Simulation of nitrogen in soil and winter wheat crops: modelling nitrogen turnover through organic matter
  349. An empirical simulation model of an Avocet Recurvirostra avosetta population
  350. Moth recording in Shropshire, 1990
  351. Laboratory evaluation of pest management strategies combining antifeedants with insect growth regulator insecticides
  352. A stochastic distributed model of soil erosion by overland flow
  353. A pale ochreous form of Herminia tarsipennalis Treischke, the Fan-foot (Lep.: Noctuidae), in Dumfries
  354. Host range and transmission of barley viruses by isolates of %Polymyxa graminis$
  355. Problems in identifying pathogenicity types of %Pseudocercosporella herpotrichoides$ by colony morphology arising from the source and concentration of the nutrient agar
  356. Factors that determine levels of glucosinolates in oilseed rape
  357. Simulation of nitrogen in soil and winter wheat crops: a management model that makes best use of limited information
  358. Soil mixing in the East Anglian fens
  359. The agronomy of straw incorporation
  360. Measurement of nitrate leaching: a review of methods
  361. Gene amplification and insecticide resistance
  362. Some effects of straw residues and cultivation system on tillering in winter wheat
  363. Maximising the amount of beta carotene in leaf protein
  364. Food utilisation of leaf protein in Europe, America and Africa
  365. Properties of soil microbial biomass
  366. The biology and control of the plant parasitic nematode %Rotylenchulus reniformis$
  367. Concentrations of vacuolar inorganic ions in individual cells of intact wheat leaf epidermis
  368. Factors causing variation in glucosinolates in oilseed rape
  369. Simulation of nitrogen in soil and winter wheat crops:modelling nitrogen turnover through organic matter
  370. Late Devensian glacial deposits and glaciations in eastern England and the adjoining offshore region
  371. The Quaternary history and glacial deposits of East Yorkshire
  372. The Rothamsted Long-term Experiments: are they still of use?
  373. Simulation of nitrogen in soil and winter wheat crops: a management model that makes the best use of limited information
  374. The distribution of barley yellow mosaic virus (BaYMV) and barley mild mosaic virus (BaMMV) in UK winter barley samples, 1987-1990
  375. Influence of complexation on the uptake by plants of iron, manganese, copper and zinc. II. Effect of DTPA in a multi-metal and computer simulation study
  376. Influence of complexation on the uptake by plants of iron, manganese, copper and zinc. I. Effect of EDTA in a multi-metal and computer simulation study
  377. The nematophagous fungus Verticillium chlamydosporium as a potential biological control agent for Meloidogyne arenaria
  378. Dark respiration of winter wheat crops in relation to temperature and simulated photosynthesis
  379. Separation of Semiothisa notata Linnaeus and S. alternaria Hubner, the Peacock and Sharp-angled Peacock moths (Lep.:Geometridae)
  380. Eupithecia dodoneata Guenee(Lep.:Geometridae), the Oak Tree Pug, in Co. Durham
  381. Rothamsted farmland light trap network: interesting Lepidoptera records for June, 1990
  382. Factors influencing aphid population dynamics and behavior and the consequences for virus spread
  383. Evidence for a decline in rural herbage lead levels in the U.K.
  384. Prediction of response to nutrients by ruminants through mathematical modelling and improved feed characterization
  385. Uptake, cycling and fate of nitrogen in grass-clover swards continuously grazed by sheep
  386. UK experience of biogas generation on farms
  387. The use of field based experimental lysimeters and 75-Se to determine the Se mass-balance for a grassland in rural north west England
  388. The impact of 20 years' absence of earthworms and three levels of N fertilizer on a grassland soil environment
  389. The impact of carabid beetles (Coleoptera: Carabidae) on populations of the field slug Deroceras reticulatum (Muller). PhD thesis, University of Reading
  390. The exploitation of beneficial invertebrates resident in field margins, hedgerows and shelter-belts around grassland
  391. The effect of variations in watertable depth on productivity and losses of soil nitrogen in hay meadows on the Somerset moors
  392. The effect of nitrogen on species diversity and agricultural production on the Somerset Moors - an executive summary
  393. Survey of pest and disease damage to white clover in England and Wales
  394. Stochastic models of grazing behaviour in sheep
  395. Shuttle and one-way avoidance as measures of aversion in the domestic fowl
  396. Selenium cycling through agricultural grasslands in the UK: budgeting the role of the atmosphere
  397. Report on a visit to Poland, Akademia Rolnicza, 20-27 March 1991
  398. Report on a visit to Poland, Akademia Rolnicza, Krakow, 14-28 June 1991
  399. Recent trends in New Zealand's livestock industry
  400. Quantification of anaerobic fungi in the rumen ecosystem
  401. Progress with screening Lotus species and varieties on an acid, low phosphate soil type in the UK
  402. Plant-animal interactions in a continuously grazed mixture. I. Differences in the physiology of leaf expansion and the fate of leaves of grass and clover
  403. Plant-animal interactions in a continuously grazed mixture. II. The role of differences in the physiology of leaf expansion and of selective grazing on the performance and stability of species in a mixture
  404. Pests and diseases of grassland and white clover and their control
  405. Patterns of ingestive behaviour of sheep continuously stocked on monocultures of ryegrass or white clover
  406. Observation on short-range transport of vapour phase selenium between experimental lysimeters
  407. Micrometeorological studies of ammonia emission from sheep grazed swards
  408. Mechanistic modelling
  409. Management of pests and disease of newly-sown grass
  410. Interactions between pesticide treatment, cutting frequency and rate of N fertilizer on white clover growth in mixture with perennial ryegrass
  411. Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking
  412. Incidence and severity of pest and disease damage to white clover foliage at 16 sites in England and Wales
  413. Improving the utilisation of slurry and farm effluents
  414. Improvement of ryegrass (Lolium spp) establishment through use of Headstart
  415. Grazed pastures as sources of ammonia
  416. Frit fly and slugs
  417. Forage conservation towards 2000 - summary paper
  418. Field resistance to stem-boring larvae (Oscinella spp) of some ryegrass (Lolium perenne and L. multiflorum ) cultivars when newly-sown
  419. Factors influencing the odour and ammonia emissions during and after the landspreading of animal slurries
  420. Empirical models of the lactation curve in dairy cattle
  421. Effects on plant-parasitic nematodes of infection of perennial ryegrass, Lolium perenne , by the endophytic fungus, Acremonium lolii
  422. Effects of extracts from ryegrass leaves infected with the endophyte Acremonium lolii on germination of other crop seeds
  423. Effect of agrochemical applied at sowing on seedling emergence and herbage yield of perennial ryegrass and white clover
  424. Diseases of establishment and newly sown grassland
  425. Control of pests and diseases of newly-sown grass
  426. Control of grassland pests and diseases
  427. Conditions and recommendations
  428. Comparison of five instrumental methods for the analysis of total selenium in environmental samples
  429. Book review: [Murray, J. D., 1989. Mathematical Biology, xiv+767 pp. Springer-Verlag, London]
  430. Applied animal behaviour: past, present and future
  431. Anglo-Dutch experiments on odour and ammonia emissions from piggery wastes applied to arable land
  432. An isotope tracer experiment on a drained grassland soil: implications for the "old water - new water" controversy
  433. Ammonia volatilisation from livestock buildings, slurry stores and grassland
  434. Ammonia and odour emissions from slurry applications to land and from grazed pastures
  435. AFRC Technical Committee on Responses to Nutrients, Report No 7, Theory of Responses to Nutrients by Farm Animals
  436. Abstracts of Communications. Proceedings of the Twenty-First Meeting of the AFRC Modellers' Group