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  1. Rational potassium manuring for arable cropping systems.
  2. Effects of seed-bed conditions on slug numbers and damage to winter wheat in a clay soil
  3. A model of the effect of codling moth granulosis-virus on cydia-pomonella
  4. Susceptibility of four hedgerow shrubs to a range of herbicides and plant-growth regulators
  5. Compensation in growth and photosynthesis of wheat (Triticum aestivum L.) following early inoculations with Septoria nodorum (Berk.) Berk.
  6. The effect of sucrose on the levels of abscisic acid, indoleacetic acid and zeatin/zeatin riboside in wheat ears growing in liquid culture
  7. Effects of the triazole plant-growth retardant BAS 111¨ W on gibberellin levels in oilseed rape, Brassica napus
  8. Pre-treatment environmental effects on the uptake, translocation, metabolism and performance of fluazifop-butyl in Elymus repens
  9. An equation to describe dose responses where there is stimulation of growth at low-doses
  10. Enhanced degradation in soil of tri-allate and other carbamate pesticides following application of tri-allate
  11. Occurrence of Tapesia yallundae, teleomorph of Pseudocercosporella herpotrichoides, on unharvested wheat culms in England
  12. A model of the evolution of polygenically controlled fungicide resistance
  13. Airborne inoculum as a major source of septoria-tritici (mycosphaerella-graminicola) infections in winter wheat crops in the uk
  14. Fungicide and nitrogen applications in relation to the improvement of disease-control and yield in winter barley
  15. A note on the mosquito oviposition pheromone
  16. Use of insect antifeedants against aphid vectors of plant virus disease
  17. Current insecticide management-practices in cotton around the world - short-term successes or templates for the future
  18. The lipid compositions of 2 isolates of Cladosporium cucumerinum do not explain their differences in sensitivity to fungicides which inhibit sterol biosynthesis
  19. Mycoherbicides: opportunities for genetic manipulation
  20. Fungicide resistance - can we cope with it?
  21. The value of long-term experiments - a personal view
  22. Generalized linear models
  23. Physical mapping of the B-hordein loci on barley chromosome 5 by in situ hybridization
  24. Calcium-dependent induction of novel proteins by abscisic acid in wheat aleurone tissue of different developmental stages
  25. Implications of statistical analysis of initial agroforestry experiments
  26. Gene amplification and insecticide resistance - 10 years on
  27. Monitoring genetically manipulated rhizobial inoculants following intentional introduction in agricultural soils
  28. Rhizobium meliloti FIXGHI and FIXNOQP sequences predict involvement of a specific cation pump and of a cytochrome in symbiotic nitrogen fixation
  29. The value of long-term experiments in agricultural research
  30. Pre- and post-harvest ecology of fungi causing spoilage of food and feeds
  31. Isoelectric focusing techniques for the identification of plant-parasitic nematodes
  32. Retro Diels-Alder rearrangement in 4-hydroxy-2-acylcyclohexane-1,3-diones
  33. Kairomonal activities of 2-acylcyclohexane-1,3 diones produced by Ephestia kuehniella Zeller in eliciting searching beahvior by the parasitoid Bracon hebetor (Say)
  34. User Guide: Scientex to WordPerfect 5 Conversion
  35. User Guide: PC Backup and Archiving using mcopy
  36. Data reduction and analysis
  37. The efficiency of sticky traps.
  38. Effects of field beans, fallow, lupins, oats, oilseed rape, peas, ryegrass, sunflowers and wheat on nitrogen residues in the soil and on the growth of a subsequent wheat crop.
  39. Recent achievements in geostatistical analysis of soil.
  40. Fungally-transmitted mosaic diseases of barley.
  41. The effect of added nitrogen and phosphorus on mycorrhizal growth response and infection in Allium schoenoprasum.
  42. The effects of fungicide-coated seeds on the establishment of VA mycorrhizal infection.
  43. Investigations into the aetiology of Ramu stunt, a new sugarcane diseases in Papua and New Guinea.
  44. Competition between introduced and indigenous mycorrhizal fungi (Glomus spp.) for root colonisation of leek.
  45. The pyrethrins and related compounds. Part XXXV. Esters of aryl-substituted cyclopentane alcohols and analogues.
  46. Fungi as biological control agents for plant parasitic nematodes
  47. Environmental interactions in the assessment of partial resistance to potato cyst nematodes. II. Interactions with sites and populations
  48. Environmental interactions in the assessment of partial resistance to potato cyst nematodes. I. Interactions with centres
  49. Aphid migration and forecasting.
  50. Pinitol, a compatible solute in Mesembryanthemum crystallinum L.?
  51. Data reduction and analysis.
  52. The molecular biology of glutamine synthetase in higher plants.
  53. The biochemical basis for major gene resistance to potato cyst nematodes in Solanum tuberosum.
  54. Detection of beet cryptic viruses 1 and 2 in a wide range of beet plants using cDNA probes.
  55. The nitrogen cycle in UK arable agriculture.
  56. Detecting plant viruses in their vectors.
  57. Semiochemicals for aphid control.
  58. A new initiative in crop protection research on rape.
  59. Resistance of aphids to insecticides.
  60. Pheromones - case study 2.
  61. Measurement and prediction of chlorsulfuron persistence in soil following autumn and spring application.
  62. Weather focus - Autumn 1989.
  63. Weather focus - Summer 1989.
  64. Weather focus - Spring 1989.
  65. Weather focus - Winter 1989.
  66. Rhizomania: progress with resistant varieties.
  67. USA beet production in the 80's: good times in the Great Lakes - but the Red River runs dry.
  68. Recent progress on the fibrous root system of sugar beet.
  69. Stimulation of sugar-beet hypocotyl extension with potassium nitrate.
  70. The control of seed and soil-borne fungi by fungicides in pelleted seed.
  71. Results of the co-operative trials on pesticides in pelleted seeds, 1987-1988.
  72. The role of nitrogen in agriculture.
  73. CUED 162/89 User guide: PC backup and archiving using mcopy. 4pp.
  74. Characteristics of Cl- transport at the vacuolar membrane of higher plants measured using a Cl- sensitive fluorescent probe.
  75. HPLC-Plasmaspray analysis of natural products.
  76. GC-MS analysis of pheromones/kairomones.
  77. Kairomonal activities of 2-acylcyclohexane-1,3-diones produced by Ephestia kuehniella Zeller in eliciting searching behaviour by the parasitoid Bracon hebetor (Say).
  78. Retro Diels-Alder rearrangement in 4-hydroxy-2-acylcyclohexane-1,3-diones.
  79. Fragmentation of 2-acylcyclohexane-1,3-dione ions and their 4-hydroxy derivatives. Elimination of water via an enol.
  80. The pyrethrins and related compounds 36 - 1H and 13C NMR spectra of cis - and trans -aryl-substituted cyclopentanoid alcohols and of their pyrethroidal esters.
  81. Synthesis and insecticidal activity of lipophilic amides. Part 7. Alternative aromatic groups for phenyl in 6-phenylhexa-2,4-dienamides.
  82. Root diffusates and hatching factors.
  83. Interaction of cyst nematodes with their natural antagonists.
  84. Use of antifeedants against aphid vectors of plant virus disease.
  85. ATP and adenylate energy charge levels in the soil microbial biomass.
  86. The use of ATP measurements in soil microbial biomass studies.
  87. The structure and functionality of wheat gluten proteins.
  88. Monoclonal antibodies as probes of wheat breadmaking quality.
  89. Potassium concentrations in whole plants and cells in relation to growth.
  90. Identification of legumin-like proteins in thin sections of developing wheat endosperms by immunocytochemical procedures.
  91. Vacuole formation in starchy wheat endosperm.
  92. Purification and characterisation of an insect alpha-amylase inhibitor/endochitinase from seeds of Job's Tears (Coix lachryma-jobi ).
  93. Modifying aphid behavior.
  94. How safe is water?
  95. Use of fluorochromes in the study of fungal cytology and differentiation.
  96. Interactions between host plants and British isolates of barley yellow dwarf virus. PhD thesis, Imperial College University of London
  97. Genetic engineering and its implications for crop production.
  98. Molecular, cytogenetic and morphological characterization of somatic hybrids of dihaploid Solanum tuberosum and diploid S. brevidens.
  99. Airborne dust and micro-organisms in pig houses: sampling to determine human health effects.
  100. Pyrenopeziza brassicae .
  101. The perfect stage of Pyrenopeziza brassicae on oilseed rape and its agricultural implications.
  102. Vertical dispersal of plant pathogens by splashing. II. Experimental study of the relationship between raindrop size and the maximum splash height.
  103. The use of plant viruses as inoculants
  104. RNA/cDNA hybridization studies of UK isolates of barley yellow mosaic virus.
  105. Identification of W-type and R-type isolates of Pseudocercosporella herpotrichoides .
  106. Sensitivity to carbendazim and prochloraz of Fusarium species on wheat straw after repeated use of sprays to control eyespot.
  107. Stem canker (Rhizoctonia solani ) on five early and seven maincrop potato cultivars. II. Effects on growth and yield.
  108. Stem canker (Rhizoctonia solani ) on five early and seven maincrop potato cultivars. I. Infection of shoots, stolons and tubers.
  109. Variations of barley yellow dwarf virus content over time in spring and winter barleys, whether or not carrying the resistance Yd2 gene.
  110. Integrated control of barley yellow dwarf viruses.
  111. Barley yellow dwarf in Portugal - II Incidence of BYDV isolates and aphid flights in the south region.
  112. The analysis and detection of sequence variation of beet western yellows virus.
  113. Rothamsted Insect Survey. Twentieth annual summary. 41pp.
  114. Observations on the biology and distribution of the double dart moth (Graphiphora augur Fabricius)) in Scotland, and damage caused by the larvae to red raspberry.
  115. Early emergence of Thera britannica Turner (spruce carpet) (Lep: Geometridae).
  116. Eupithecia valerianata Hubner (valerian pug) and Eupithecia virgaureata Doubleday (goldenrod pug) (Lep: Geometridae)in Breconshire.
  117. Schrankia intermedialis Reid (Lep: Noctuidae), the autumn snout, in Kent.
  118. Trachea atriplicis Linnaeus (Lep: Noctuidae), the orache moth, in Jersey.
  119. Further recent records of Drepanepteryx phalaenoides (L.) (Neuroptera: Hemerobiidae) in southern England.
  120. White metathoracic crests in Eupithecia lariciata Freyer and E. tripunctaria Herrich-Schaffer (Lep: Geometridae), the larch and white-spotted pugs.
  121. Agriopis marginaria Fabr. (Lep: Geometridae), the dotted border moth caught in December.
  122. Butterfly records from Dorset, 1988.
  123. Large number of orange-tip (Anthocaris cardamines L.) (Lep: Pieridae) eggs on a single plant.
  124. Aspects of the hatching physiology of Globodera rostochiensis and G. pallida .
  125. The use of electrophoresis in the study of hymenopteran parasitoids of agricultural pests.
  126. Use of genetic markers (allozymes) to study the structure, overwintering and dynamics of pest aphid populations.
  127. Electrophoretic studies on agricultural pests.
  128. Separation of three Rubus -feeding species of aphid - Sitobion fragariae (Wlk.), Macrosiphum fenestum (Masch) and Amphorophora rubi (Kalt. )(Hemiptera: Aphididae) by electrophoresis.
  129. Seed tuber physiological age and the growth of potato cultivars with partial resistance to the potato cyst nematode Globodera pallida .
  130. Greenhouse greenfly?
  131. Spatial pattern of abundance of the black bean aphid, Aphis fabae , in Britain.
  132. Slugs and snails in world agriculture.
  133. Novel chemical approaches to mollusc control.
  134. Pheromone monitoring of Brassica pod midge (Dasineura brassicae Winn.).
  135. Pest incidence on single low and double low oilseed rape cultivars.
  136. Honeybee pollination of the double low oilseed rape cultivar Ariana.
  137. Oviposition-deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.)
  138. Host plant selection by the cabbage stem flea beetle (Psylliodes chrysocephala ).
  139. CUED 159/89. Information Guide: WordPerfect 5.0 on Sperry PCs, Release 1, May 1989. 4pp.
  140. CUED 162/89. User Guide: PC and Sun Help program. 4pp.
  141. CUED 155/89. User Guide: The personnel and cost forecasting databases. 90pp.
  142. CUED 154/89. User Guide: Setting the Opus PC VI NEAT chip set. 3pp.
  143. CUED 158/89. User Guide: Freelance Plus vsn 3.0. 33pp.
  144. CUED 156/89. User Guide: Using the 35mm slide recorder with an Opus PC V. 5pp.
  145. CUED 152/89. User Guide: Using LaTEX. 9pp.
  146. CUED 161/89. User Guide: Improved antennogram system. 11pp.
  147. CUED 157/89. User Guide: Use of surge protection devices. 3pp.
  148. CUED 151/88. User Guide: Insect Electroantennogram. 8pp.
  149. CUED 163/89. User Guide: Uniras on the Sun. 5pp.
  150. CUED 160/89. User Guide: The easy way to create a reasonable line graph using Unigraph. 17pp.
  151. CUED 153/89. User Guide: Gelplot program. 14pp.
  152. The biosynthesis of amino acids in plants.
  153. Cytogenetical analysis of parental genome stabilities in somatic hybrids of Solanum tuberosum and S. brevidens using species-specific probes.
  154. Effects of foliar-applied ureaon leaf composition, photosynthesis and grain quality and yield.
  155. A novel approach for intracellular nitrate measurement.
  156. Physiological aspects of water in the crop.
  157. Plant biotechnology in agriculture. 300pp.
  158. Regulation of photosynthetic carbon metabolism in water-stressed sunflower.
  159. Improving potatoes.
  160. Isolation and culture of protoplasts from specific tissues: dedifferentiation and regeneration.
  161. Ri T-DNA genes in potato.
  162. Molecular, pathological and field evaluation of somatic hybrids between potato and Solanum brevidens .
  163. Pests and diseases of sugar beet.
  164. The Mechanisms of anion transport at the tonoplast of higher plants. PhD thesis, University of York
  165. Biochemical taxonomy of the genus Ditylenchus.
  166. Radiocarbon dating of the Holocene evolution of Magilligan Foreland, Co. Londonderry.
  167. Transfer of resistance to potato viruses by somatic hybridisation and field assessment under AGGM guidelines.
  168. Shotgun cloning by direct gene transfer: optimisation of DNA transfer conditions.
  169. Agronomic factors influencing the glucosinolate content of double-low winter-sown oilseed rape in the UK.
  170. Effect of glucosinolates on slug damage to oilseed rape.
  171. Identification and characterisation of Solanum brevidens and Solanum tuberosum specific DNA sequences and their use in a somatic hybridisation programme.
  172. Cytogenetical analysis of parental genome stabilities in somatic hybrids of Solanum tuberosum and S. brevidens using species-specific probes.
  173. Diseases and responses to disease and pest control on single- and double-low cultivars of winter oilseed rape.
  174. Accumulation of dry matter in oilseed rape crops in relation to the reflection and absorption of solar radiation by different canopy structures.
  175. Characterization of chloride transport at the tonoplast of higher plants using a chloride-sensitive fluorescent probe.
  176. Role of plasma membrane transport in cytosolic calcium homeostasis in Neurospora .
  177. Transport of nutrients into and out of plant vacuoles in relation to nutrient supply.
  178. Stoichiometry, poise and function of tonoplast H+-translocating pyrophosphatase: the role of patch clamp studies.
  179. Artefacts associated with the use of acridine orange to measure sodium/proton exchange in tonoplast vesicles.
  180. Growing barley for malting - a review.
  181. Morphogenetic response of isogenic lines of Triticale differing in their content of heterochromatin.
  182. Effects of low temperature on the respiratory mechanism of carbohydrates by plants.
  183. The extent to which physical factors in the rooting zone limit crop growth.
  184. Root growth and nutrient uptake by field crops under temperate conditions.
  185. Illumination for photosynthesis measurements with portable leaf chambers.
  186. Influence of temperature on the kinetic properties of pyrophosphate fructose 6-phosphate phosphotransferase from potato tubers.
  187. Tissue specific expression during cereal grain development.
  188. Pinitol, a compatible solute in Mesembryanthemum crystallinum ?
  189. Variation in the specificity factor of C3 higher plant Rubiscos determined by the total consumption of ribulose-P2.
  190. High purity preparations of higher plant vacuolar H+-ATPase reveal additional subunits. Revised subunit composition.
  191. The energetics of cytosolic calcium homeostasis in fungal cells.
  192. Stable transformation of sugar beet protoplasts by electroporation.
  193. Introduction and expression of foreign genes in wheat protoplasts.
  194. Utilization of mineral nitrogen in the subsoil by winter wheat.
  195. Variability in potato tissue culture
  196. Genetic manipulation of arable crop plants by protoplast fusion and direct gene transfer.
  197. Transient gene expression in electroporated Solanum protoplasts.
  198. Direct gene transfer into plant protoplasts.
  199. Isolation, culture and regeneration of plants from potato protoplasts
  200. Genetic manipulation of arable crop plants - present status and future prospects. Sir Thomas Middleton Memorial Lecture.
  201. Purification technologies for plant proteins.
  202. Synthesis and biological activity of an azido derivative of Paclobutrazol, an inhibitor of gibberelin biosynthesis.
  203. Identification and purification of substrate-binding subunit of higher plant H+-translocating inorganic pyrophosphatase.
  204. Genetic stability of potato ( Solanum tuberosum L.) after in vitro culture.
  205. Studies of crassulacean acid metabolism in Mesembryanthemum crystallinum and Kalanchoe daigremontiana. PhD thesis, University of Leicester
  206. Is regression what you really want?
  207. Variation in soil properties caused by irrigation and cultivation in the central Gezira of Sudan.
  208. Cross-validation.
  209. Third-world statisticians.
  210. Genstat 5 release 2 reference summary . 97pp.
  211. Survey of Fertiliser Practice. Fertiliser use on farm crops: Scotland 1988. 40pp.
  212. Guide to the Rothamsted General Survey Program. (Mark 3). 173pp.
  213. The Survey of Fertiliser Practice in England and Wales.
  214. A data organisation system for field experiments.
  215. A guide to procedures in Genstat.
  216. Genstat Procedure Library for release 1.3.
  217. Features of the Genstat language: 2.
  218. Features of the Genstat 5 language: 1.
  219. Multiple correspondence analysis and non-linear biplots.
  220. Genstat 5. A second course . 233pp.
  221. The performance of a range of grass species under two fertilizer regimes in the Falkland Islands.
  222. Fertiliser use on farm crops in England and Wales 1988. 55pp.
  223. Effects of multiple environmental and nutritional factors in laying hens.
  224. Procedure GENPROC.
  225. Procedure ORDINALL.
  226. Procedure MULTMISS.
  227. Procedure TTEST.
  228. Procedure SMOOTHSPECTRUM.
  229. Procedure BJIDENTIFY.
  230. Procedure BJFORECAST.
  231. Procedure BJESTIMATE.
  232. Procedure APLOT.
  233. Procedure LATTICE.
  234. Procedure ANTORDER.
  235. Procedure ANTTEST.
  236. Procedure MANCOVA.
  237. Procedure MANOVA.
  238. Procedure SUBSET.
  239. Procedure VHOMOGENEITY.
  240. Procedure LIBEXAMPLE.
  241. Procedure LIBHELP.
  242. Procedure LIBINFORM.
  243. Procedure LIBMANUAL.
  244. Procedure NOTICE.
  245. Procedure PERCENT.
  246. Procedure REPMEAS.
  247. Procedure CHECKARGUMENT.
  248. Procedure AONEWAY.
  249. Procedure ALIAS.
  250. Procedure MANNWHITNEY.
  251. Procedure KRUSKAL.
  252. Procedure NPRANK.
  253. Procedure NPCHECK.
  254. Procedure SPEARMAN.
  255. Procedure CONCORD.
  256. Procedure WILCOXON.
  257. Procedure WILCOXON.
  258. Procedure WHISKER.
  259. Procedure RCHECK.
  260. Procedure QUANTILE.
  261. Procedure ORTHPOL.
  262. Procedure HANOVA.
  263. Procedure GLM.
  264. Procedure FIELLER.
  265. Procedure CENSOR.
  266. Procedure DSHADE.
  267. Procedure BIPLOT.
  268. Procedure CLASSIFY.
  269. Procedure BARCHART.
  270. Procedure LRVSCREE.
  271. Procedure SKEWSYMM.
  272. Procedure CANCOR.
  273. Procedure DISCRIMINATE.
  274. Procedure DDENDROGRAM.
  275. Procedure CORRESP.
  276. Procedure CONVEXHULL.
  277. Procedure GRWEIBULL.
  278. Procedure GRT.
  279. Procedure GRNORMAL.
  280. Procedure GRLOGNORMAL.
  281. Procedure GRGAMMA.
  282. Procedure GRF.
  283. Procedure GRCHI.
  284. Genstat 5 procedure library manual. Release 1.3[2]. 175 pp.
  285. Procedure GRBETA.
  286. Effects of row spacing and the control of pests and pathogens on four cultivars of spring-sown field beans (Vicia fabae ).
  287. Leaching of nitrate from soils receiving organic or inorganic fertilizers continuously for 135 years.
  288. Influence of sorghum residues and tillage on soil organic matter and soil microbial biomass in an Australian vertisol.
  289. The long-term effects of nitrogen fertilizers.
  290. Soils as indicators of Quaternary climatic cycles
  291. Spatial correlation in reflected radiation from the ground and its implications for sampling and mapping by ground-based radiometry.
  292. Computer simulation of nitrogen dynamics in soil.
  293. Farmers' trials - can they help?
  294. Optimal multi-variable sampling schemes for remote sensing investigations.
  295. Accumulation and loss of nitrogen from manure, sludge and compost: long-term experiments at Rothamsted and Woburn.
  296. Leaching of nitrate under arable crops.
  297. A simple capillary-specimen attachment for parafocusing powder diffractometers.
  298. Seasonal changes in the structure of clay soils in relation to soil management and crop type. II. Effects of cultivation and cropping at Compton Beauchamp.
  299. Dormancy and hatching of nematode eggs.
  300. Effects of leaf age and position on splash dispersal of Pseudocercosporella capsellae , cause of white leaf spot on oilseed rape.
  301. Nematode problems in oilseed rape.
  302. Antennal responses of Ceutorhynchus assimilis and Psylliodes chrysocephala to volatiles from oilseed rape.
  303. Changes in glucosinolate concentrations during the vegetative growth of single- and double-low cultivars of winter oilseed rape.
  304. The effects of time and method of harvest on seed yield and glucosinolate concentration of winter oilseed rape.
  305. Variation in seed glucosinolate levels as influenced by agronomic inputs.
  306. Between and within plant variation in seed glucosinolate concentrations in the winter oilseed rape cv. Ariana.
  307. Changes in glucosinolate concentrations of single- and double-low varieties of autumn sown oilseed rape (B. napus ) during seed development.
  308. Interaction of cyst nematodes with their natural antagonists.
  309. Root diffusates and hatching factors.
  310. Host-parasitoid models of intermediate complexity.
  311. Relationships between lipophilicity and root uptake and translocation of non-ionised chemicals by rice,
  312. Irrigating sugar beet in the United Kingdom.
  313. Sugar beet : a growers' guide. 4th edn. 95pp.
  314. Gibberellin involvement in dormancy-break and germination of seeds of celery (Apium graveolens L.).
  315. Effects of increasing weed-beet density on sugar-beet yield and density.
  316. Distribution and infectivity of yellowing viruses in field-grown sugar-beet plants.
  317. Why not autumn sown sugar beet?
  318. Sugar beet in the greenhouse - a global warming warning.
  319. The Peterborough review of research priorities 1990-1996.
  320. Sugar beet, straw and nitrogen.
  321. Polymyxa: the rhizomania vector.
  322. A taste of Turkish sugar.
  323. Fungal populations on wheat straw decomposing in arable soils.
  324. Vectors of plant pathogens and opportunities for the control of the diseases they transmit.
  325. Secondary plant metabolites as targets for genetic modification of crop plants for pest resistance.
  326. Past, present and future uses of Rhizobium inoculants.
  327. Prospects for practical use of inoculum of vesicular-arbuscular mycorrhizal fungi.
  328. Paleosols: problems of definition, recognition and interpretation
  329. A note on the mosquito oviposition pheromone.
  330. The role of electrophoresis in the biochemical detection of insecticide resistance.
  331. Ways of overcoming constraints to reduced tillage; effect of changing straw disposal on soil nitrogen.
  332. Management of crop residues.
  333. Effects of phosphorus on the morphology of VA mycorrhizal root system of leek (Allium porrum L.).
  334. Present and future value of mycorrhizal inoculants.
  335. Probing the secrets of oilseed rape.
  336. Fungally-transmitted viruses of cereals in the UK.
  337. Denitrification losses of nitrogen from arable soils as affected by old and new organic matter from leys and farmyard manure.
  338. Water and the ecology of grain fungi.
  339. The role of the soil microbial biomass in substrate decomposition and in the turnover of soil organic matter.
  340. Byways on the route to edible protein from leaves.
  341. Population variation in Entomology: 1935-1950. I. Sampling.
  342. Spatial distribution on pasture of infective larvae of the gastro-intestinal nematode parasites of sheep.
  343. Respiratory symptoms, lung function, and sensitisation to flour in a British bakery.
  344. Isolation of thermophilic microorganisms.
  345. An experimental design and procedures for testing putative controls against naturally-occurring take-all in the field.
  346. Glucosinolates in oilseed rape (Brassica napus) and the incidence of pollen beetles (Meligethes aeneus)
  347. Potassium concentrations in whole plants and cells in relation to growth.
  348. Insecticide resistance management revisited.
  349. Pyrethroids - past, present and future.
  350. The genetics of nitrate uptake in higher plants.
  351. A comparison between the coupled spectrophotometric and uncoupled radiometric assays for RuBP carboxylase.
  352. Designing molecules for systemicity.
  353. Distribution of clinically important thermophilic actinomycetes in vegetable substrates and soil in north-western India.
  354. The role of rain in dispersal of pathogen inoculum.
  355. Artificial epidemics to study the effects of take-all on yield.
  356. A comparison of the fumigation-extraction, fumigation-incubation and ATP methods for measuring microbial biomass in waterlogged soils.
  357. The microbial biomass in soil.
  358. Measuring the dynamics of the turnover of biomass carbon in soil.
  359. The fumigation-extraction method: a breakthrough in measuring microbial biomass in soils following straw incorporation.
  360. Absence of nitrogen fixation in clover grown on soil subject to long-term contamination with heavy metals is due to survival of only ineffective Rhizobium.
  361. Microbial biomass measurements in soils containing large amounts of inorganic nitrogen.
  362. On the Akaike Information Criterion for choosing models for variograms of soil properties.
  363. An explanation for the apparent losses of metals in a long-term field experiment with sewage sludge
  364. Paleopedology: nature and application of paleosols. A. Bronger & J.A. Catt eds.
  365. Relict properties in soils of the central and north-west European temperate region
  366. Geostatistics in physical geography. Part II. Applications.
  367. Geostatistics in physical geography. Part I. Theory.
  368. Optimal interpolation and isarithmic mapping of soil properties. 6 . Disjunctive kriging and mapping the conditional probability VI
  369. A critical comparioson of methods to monitor the decay rate of straw in field soils.
  370. Muck, metals and microbes.
  371. Efficient transformation of Agrobacterium spp. by high voltage electroporation.
  372. Resurgence of insecticide-resistant Myzus persicae on potatoes treated repeatedly with cypermethrin and mineral oil.
  373. A method for separating summer and autumn migrants of host-alternating aphids.
  374. A melanic aberration of Pieris rapae (L.), the small white butterfly (Lep. :Pieridae).
  375. A survey of the zinc content of arable soils in the south-east of Scotland.
  376. Molecular and biochemical analyses of barley beta-amylase
  377. The development and composition of barley grain: relationship to end use, and potential for manipulation
  378. Genetic manipulation of arable crop plants - present status and future prospects.
  379. Indirect method for estimating clove tree yields.
  380. A simulation model describing the population dynamics and damage potential of the rose grain aphid, Metopolophium dirhodum (Walker)(Hemiptera: Aphididae), in the UK.
  381. Validation of models that predict the peak density of grain aphid (Sitobion avenae ) and yield loss in winter wheat.
  382. Root growth, macro-nutrient uptake dynamics and soil fertility requirements of a high-yielding winter oilseed rape crop.
  383. Benefits from long-term ecological research; some examples from Rothamsted.
  384. The application of classical physics transport theory to water movement in soil: development and deficiencies.
  385. Potassium and magnesium in some Kenyan soils: their mineral sources and release to Ca-resin.
  386. Insecticide resistance in Myzus persicae : from field to gene and back again.
  387. Methods for enumerating airborne micro-organisms in the workplace.
  388. Airborne health hazards from agricultural materials.
  389. Microscopic methods for enumerating microorganisms in filter samples.
  390. Prevention of mould growth and mycotoxin production through control of environmental factors
  391. Saccharopolyspora gregorii and Saccharopolyspora hordei : two new actinomycete species from fodder.
  392. Efficient exploitation of plants for food.
  393. Immunoassay for detecting insecticide resistance in aphids.
  394. A method for large-scale progeny screening of putative transformed cereal.
  395. Laying the ground rules for nitrate.
  396. Field release of rhizobia marked with a transposon.
  397. Transports of blight.
  398. Present insecticide-resistance management strategies in cotton.
  399. Activity of quassinoids as antifeedants against aphids.
  400. The biosynthesis of amino acids in plants.
  401. The combined use of immunoassay and a DNA diagnostic technique to identify insecticide-resistant genotypes in the peach-potato aphid, Myzus persicae (Sulz.)
  402. Characterization of stage-specific cuticular proteins of Meloidogyne incognita by radio-iodination.
  403. Transmission of potato virus Y by aphids trapped in potato crops in southern England.
  404. Forecasting the incidence of virus yellows in sugar beet in England.
  405. A two-stage sampling procedure for determining variograms of soil properties.
  406. Predicting the lime requirement of soils under permanent grassland and arable crops.
  407. The nitrogen cycle in the Broadbalk wheat experiment : a model for the turnover of nitrogen through the soil microbial biomass
  408. 25th Anniversary of the British Classification Society. Editorial.
  409. Effects of temperature on the kinetic properties of phosphofructokinase from Escherichia coli .
  410. Transient gene expression in aleurone protoplasts isolated from developing caryopses of barley and wheat.
  411. Influence of paraquat on the extraction of adenosine triphosphate from soil by trichloracetic acid.
  412. Adenosine 5'-triphosphate and adenylate energy charge in waterlogged soil.
  413. Use of the scanning electron microscope for the identification of nematodes.
  414. Two glutamine synthetase genes from Phaseolus vulgaris L. display contrasting developmental and spatial patterns of expression in transgenic Lotus corniculatus plants.
  415. Crop protection agents in soils and factors influencing their entry into soil water.
  416. Influence of soil carbon content on denitrification from fallow land during autumn.
  417. Effectiveness of different insecticides applied at various growth stages to control aphids on winter wheat.
  418. A study of criteria for constructing identification keys containing tests with unequal costs.
  419. Estimation of the negative binomial parameter k by maximum quasi-likelihood.
  420. Uptake of foliar-applied urea by winter-wheat (Triticum aestivum ): the influence of application time and the use of a new 15N technique.
  421. The nitrogen cycle in Broadbalk wheat experiment: 15N-labelled fertilizer residues in the soil and in the soil microbial biomass.
  422. Genus Thermoactinomyces Tsiklinsky 1899, 501 superscript AL.
  423. Thermoactinomycetes.
  424. Genus Faenia Kurup and Agre 1983, 664 superscript VP (Micropolyspora Lechevalier, Solotorovsky and McDurmont 1961, 11 superscript AL.)
  425. Existing soil protection guidelines which limit concentrations of heavy metals in British soils.
  426. Investigations of the mobility, availability and effects of heavy metal contamination in soil.
  427. Designs: mappings between structured sets.
  428. Genus Saccharopolyspora Lacey and Goodfellow 1975. 77 superscript AL.
  429. A compact lighting system for use with portable leaf chambers to measure photosynthesis.
  430. Cadmium in cereal grain and herbage from long-term experimental plots at Rothamsted, UK.
  431. Detoxication of insecticides by esterases from Myzus persicae - is hydrolysis important?
  432. Crop yields from lucerne (Medicago sativa ) cultivars displaying gradations in resistance to wilt (Verticillium albo-atrum ).
  433. Functional analysis of the upstream regions of a silent and an expressed member of a family of wheat seed protein genes in transgenic tobacco.
  434. Conformational studies of a synthetic peptide corresponding to the repeat motif of C hordein.
  435. Britain's unchecked plague of aphids.
  436. The aphid sex pheromone.
  437. New light on an old technology: the structure of wheat gluten and its role in breadmaking.
  438. The structure and functionality of wheat gluten proteins.
  439. Development of field trial methodology to assess short-term effects of pesticides on beneficial arthropods in arable crops.
  440. Generalised canonical analysis.
  441. The role of natural enemies in arable crops.
  442. Effects of aldicarb, benomyl, dazomet, permethrin, pirimicarb, phorate and nitrogen fertiliser on maize (Zea mays ) grown for 14 consecutive years on the same site.
  443. Long-term atmospheric deposition and soil acidification at Rothamsted Experimental Station, England.
  444. Seed-bed cultivations and sugar-beet seedling emergence.
  445. Focus on the weather - an assessment of the last three months.
  446. Diseases of the sugar beet seedling - pythium and aphanomyces.
  447. Damage to sugar-beet crops by ectoparasitic nematodes, and its control by soil-applied granular pesticides.
  448. Monitoring, forecasting and control of cereal aphids: some recent developments in England.
  449. Rothamsted : a cradle of agricultural research.
  450. Unusual features of cereal seed protein structure and evolution.
  451. Chemistry of biologically active compounds especially for pest control on arable farms.
  452. Progress in research on the control of take-all in cereals with fungicides : a review.
  453. Strain differentiation of barley yellow dwarf virus isolates using specific monoclonal antibodies in immunosorbent electron microscopy.
  454. Growth and yield of potatoes as affected by severity of stem canker (Rhizoctonia solani ).
  455. Effects of soil temperature and moisture on stem canker (Rhizoctonia solani ) disease of potatoes.
  456. Factors influencing the control of potato gangrene by fungicide treatment.
  457. Resistance to thiabendazole in isolates of Helminthosporum solani , the cause of scurf disease of potatoes.
  458. More about nitrate leaching.
  459. The tobacco whitefly field control simulator - a bridge between laboratory assays and field evaluation.
  460. Rhizobium meliloti fixGHI sequence predicts involvement of a specific cation pump in symbiotic nitrogen fixation.
  461. Effects of activated charcoal, wood charcoal and coal dust on the hatch of Globodera rostochiensis under potatoes and on subsequent yield.
  462. 1989 - The year of the yellow peril?
  463. The response of white clover (Trifolium repens L.) seedlings to spring root temperatures : the relative roles of the plant and the Rhizobium bacteria.
  464. Geostatically constrained multivariate classification.
  465. A new group of molluscicidal compounds.
  466. Disjunctive kriging in agriculture
  467. Effects of certain herbicides on the in vitro hatch of Globodera rostochiensis and Heterodera schachtii.
  468. Use of metal chelates as mulluscicides. GB2207866A
  469. Implications to N losses of a switch from inorganic towards organic manures and from continuous arable cropping to ley-arable rotations. Agriculture Group Symposium : future use of nitrogen fertilisers.
  470. The development of endomycorrhizal root systems. VII. A detailed study of effects of soil phosphorus on colonization.
  471. Unused fertiliser nitrogen in arable soils - its contribution to nitrate leaching.
  472. Airborne micro-organisms in the work environment.
  473. Investigation of organic aerosols generated during sugar beet slicing.
  474. Polynuclear aromatic hydrocarbons in an agricultural soil: long term changes in profile distribution.
  475. Predicting the availability of soil-applied pesticides.
  476. The functioning of soil as an ecosystem.
  477. Changes in DNA methylation are associated with loss of insecticide resistance in the peach-potato aphid Myzus persicae (Sulz.)
  478. Ion channel properties of insects susceptible and resistant to insecticides.
  479. Photosynthesis by flag leaves of wheat in relation to protein, ribulose bisphosphate carboxylase activity and nitrogen supply.
  480. Phosphorus cycling in intensive arable agriculture.
  481. Changes in the polynuclear aromatic hydrocarbon content of wheat grain and pasture grassland over the last century from one site in the UK.
  482. Optimal exploitation of leaf carotene.
  483. Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley.
  484. Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley.
  485. Increases in the polynuclear aromatic hydrocarbon content of an agricultural soil over the last century
  486. Moth diversity of a tropical forest in peninsular Malaya.
  487. A geostatistical basis for spatial weighting in multivariate classification
  488. Potassium fixation and release.
  489. Pathogenicity to wheat and rye of Pseudocercosporella herpotrichoides isolates from France and the UK.
  490. Nucleotide sequences of the two high-molecular-weight glutenin genes from the D-genome of a hexaploid bread wheat, Triticum aestivum L. cv Cheyenne
  491. An estimate of the potential economic losses to some crops due to aphids in Britain.
  492. Insect-fungus interactions.
  493. The effects of specific metabolic inhibitors on the energy metabolism of Globodera rostochiensis and Panagrellus redivivus .
  494. Observations on the response of the dorsal and subventral oesophageal glands of Globodera rostochiensis to hatching stimulation.
  495. Insect-fungus interactions (Symposium of the Royal Entomological Society)
  496. Soil, water and nutrient dynamics in a silvopastoral system
  497. The effects of three clover proportions within a sward on the performance of dairy cows
  498. Strategies of fertilizer nitrogen application to grassland for beef: effects on production and soil mineral nitrogen
  499. Silage for milk production
  500. Review of "Sheep in the 90's new risk, new rewards", Conference organised by MLC and the NFU, Cullompton, 22 November 1989
  501. Recent developments in the production and utilisation of silage in the UK
  502. Prediction of voluntary intake of grass silage by growing cattle using ridge regression
  503. Possible developments in grassland farming and implications for fertiliser N use
  504. Effects of changes in fertiliser use on the composition and productivity of permanent grassland in relation to agricultural production and floristic diversity
  505. Control of soil-borne root pathogens in grass seedlings
  506. Changes ahead for grassland farming
  507. Beef production based on white clover: effects of grazing management, concentrate supplementation and breed type
  508. A selenium budget for upland grasslands in the British Isles, with emphasis on inputs from and losses to the atmosphere
  509. A potential management system for reducing losses from grazed grass in autumn