Items where Year is 1951

Number of items: 110.
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  • Alkaline Decomposition of Amino-acids. (1951) Bremner, J. M. picture_as_pdf
  • A review of recent work on soil organic matter part I. (1951) Bremner, J. M.
  • Paper chromatography of amines. (1951) Bremner, J. M., Kenten, R. H.
  • Aphid excretion. (1951) Broadbent, L.
  • Lettuce mosaic in the field. (1951) Broadbent, L.
  • The influence of heat on some aphids. (1951) Broadbent, L., Hollings, M.
  • Experiments on the colonization of potato plants by apterous and by alate aphids in relation to the spread of virus diseases. (1951) Broadbent, L., Tinsley, T. W.
  • The spread of lettuce mosaic in the field. (1951) Broadbent, L., Tinsley, T. W., Buddin, W., Roberts, E. T.
  • Lepidoptera at light in a Hertfordshire wood in July 1949. (1951) French, R. A. picture_as_pdf
  • Deposition of air-borne Lycopodium spores on cylinders. (1951) Gregory, P. H.
  • Cryptostroma corticale and sooty bark disease of sycamore (Acer pseudoplatanus). (1951) Gregory, P. H., Waller, S.
  • A soil survey on Warpland in Yorkshire. (1951) Heathcote, G. D.
  • The effect of manures on the bolting of the beet plant. (1951) Mann, H. H.
  • The behaviour of nitrogenous manures in the soil Part I. The loss of manurial nitrogen. (1951) Mann, H. H., Barnes, T. W. picture_as_pdf
  • Change‐over trials. (1951) Patterson, H. D.
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  • Syrphidae as pests of cucumbers. (1951) Banks, C. J.
  • A new gall midge (Dipt., Cecidomyidae) predaceous on the Flour Mite, Tyroglyphus farinae (Deg.). (1951) Barnes, Horace Francis picture_as_pdf
  • Marking and breeding Testacella slugs. (1951) Barnes, Horace Francis, Stokes, B. M.
  • The application of electron microscopy to the study of plant viruses in unpurified plant extracts. (1951) Bawden, Frederick C., Nixon, H. L.
  • Some properties of broad-bean mottle virus. (1951) Bawden, Frederick, Chaudhuri, R. P., Kassanis, Basil
  • Serologically related strains of potato virus y that are not mutually antagonistic in plants. (1951) Bawden, Frederick, Kassanis, Basil
  • A century-old forest nursery in Germany. (1951) Benzian, Blanche
  • The influence of density of plant population on the incidence of yellows in sugar‐beet crops. (1951) Blencowe, J. W., Tinsley, T. W.
  • Experiments on the mechanism of gley formation. (1951) Bloomfield, C. B.
  • Economic and statistical aspects of vegetable an animal foods. (1951) Boyd, D. A.
  • Report of the Bee Department 1950. (1951) Butler, Colin Gasking
  • The importance of perfume in the discovery of food by the worker honeybee (Apis-mellifera L). (1951) Butler, Colin Gasking
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  • The effect of soil calcium on the mineral content of wheat. (1951) Chambers, W. E., Gardner, H. W.
  • The flight range of the honey-bee. (1951) Charles "Ronald" Ribbands picture_as_pdf
  • Fertilizer placement machinery. (1951) Cooke, George William
  • Fixation of phosphate during the acid extraction of soils. (1951) Cooke, George William
  • How to apply fertilizers for sugar beet. (1951) Cooke, George William
  • Placement of fertilizers for sugar beet. (1951) Cooke, George William
  • The mechanical application of fertilizers in field experiments. (1951) Cooke, George William
  • Experimental agriculture. (1951) Crowther, Edward Mortimer
  • Experimental agriculture. (1951) Crowther, Edward Mortimer
    • E
  • Diurnal variation in the aerial density of Aphididae. (1951) Eastop, V. F.
  • Insecticidal activity of the pyrethrins and related compounds. (1951) Elliott, Michael
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  • Investigations on the Emergence of Larvae from the Cysts of the Potato-root Eel worm, Heterodera rostochiensis 5 A Shortened Method for the Conduct of Hatching Tests. (1951) Fenwick, D. W. picture_as_pdf
  • Investigations on the Emergence of Larvae from the Cysts of the Potato-root Eelworm, Heterodera rostochiensis.: 4. Physical Conditions and their Influence on Larval Emergence in the Laboratory. (1951) Fenwick, D. W. picture_as_pdf
  • On the Varying Nematicidal Effects of Different Samples of DD against the Potato-root Eelworm Heterodera rostochiensis. (1951) Fenwick, D. W. picture_as_pdf
  • The effect of temperature on the development of the potato‐root eelworm, heterodera rostochiensis. (1951) Fenwick, D. W.
  • A new modification of the McMaster slide for use in potato-root eelworm investigations. (1951) Fenwick, D. W. picture_as_pdf
  • Further Studies on the Identification of Heterodera Species by Larval Length. Estimation of the Length Parameters for Eight Species and Varieties. (1951) Fenwick, D. W., Franklin, M. T. picture_as_pdf
  • The Use of a Microbalance in Putting up Uniformly Sized Batches of Heterodera Cysts for Experiment. (1951) Fenwick, D. W., Reid, E. picture_as_pdf
  • A rapid method for estimating the density of white cysts of Heterodera rostochiensis on potato roots. (1951) Fenwick, D. W., Reid, E.
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  • Some aspects of the United Nations conference on the conservation of natural resources. (1951) Gammie Ogg, Sir
  • What is balanced manuring? (1951) Gammie Ogg, Sir, Nicol, H.
  • Effects of cultural treatments on wheat and on the incidence of eyespot, lodging, take-all and weeds. Field Experiments 1945–8. (1951) Glynne, Mary Dilys
  • Observations on the attack by the stem eelworm, Ditylenchus dipsaci, on strawberry. (1951) Goodey, J. B.
  • The “Hemizonid,” a Hitherto Unrecorded Structure in Members of the Tylenchoidea. (1951) Goodey, John Basil picture_as_pdf
  • A new species of Hyphomycete attacking the stem Eelworm Ditylenchus dipsaci. (1951) Goodey, John Basil
  • The potato tuber nematode Ditylenchus destructor Thorne 1945 - the cause of eelworm disease in the bulbous iris. (1951) Goodey, John Basil
  • A secondary piliferous layer on the roots of Hippeastrum. (1951) Goodey, John Basil
  • Stem Eelworm Attack on Seedlings of Vetches, Vicia villosa Roth, and Vicia sativa L. (1951) Goodey, Tom (Thomas) picture_as_pdf
  • The expected frequencies in a sample of an animal population in which the abundances of species are log-normally distributed. Part I. (1951) Grundy, P. M.
  • A general technique for the analysis of experiments with incorrectly treated plots. (1951) Grundy, P. M.
    • H
  • The influence of nosema apis on the larval honeybee. (1951) Hassanein, M. H.
  • Latin rectangle designs for 2n factorial experiments on 32 plots. (1951) Healy, Michael John Romer
  • A study of various fractions of the manganese of neutral and alkaline organic soils. (1951) Heintze, S. G., Mann, P. J. G.
    • J
  • Technical and biological aspects of insect drift. (1951) Johnson, C. G.
  • The study of wind-borne insect populations in relation to terrestrial ecology, flight periodicity and the estimation of aerial populations. (1951) Johnson, C. G.
  • Aphids captured in a Rothamsted suction trap, 5 ft. above ground level, from June to November, 1947. (1951) Johnson, C. G., Eastop, V. F.
  • Relationship of aphid density to altitude. (1951) Johnson, C. G., Penman, Howard Latimer
    • K
  • The action of peroxidase systems on ferrocyanide, molybdate, tungstate and vanadate. (1951) Kenten, R. H., Mann, P. J. G.
  • The ability of single phage particles to form plaques and to multiply in liquid cultures. (1951) Kleczkowski, A., Kleczkowski, J.
    • L
  • On Two Neglected Type Designations in the Genus Hydrobaenus Fries, 1830 (Dipt., Chironomidae). (1951) Laurence, B. R.
  • The Prey of Some Tree Trunk Frequenting Empididae and Dolichopodidae (Dipt.). (1951) Laurence, B. R.
  • Studies on the mechanism of insecticidal action of organo-phosphorus comounds with particular reference to their antiesterase activity. (1951) Lord, K. A., Potter, C.
    • M
  • Particles size of insecticial suspensions and their contact toxicity III Temperature coefficients and tests by injection. (1951) Mcintosh, A. H.
  • Particles size of insecticial suspensions and their contact toxicity IV Mechanisms of action of different-sized particles. (1951) Mcintosh, A. H.
  • Myxobacteria Mistaken for Nitrifying Bacteria. (1951) Meiklejohn, J.
  • The effects of glucose on impure cultures of nitrifying bacteria. (1951) Meiklejohn, J.
  • Notes on the soils of Syria. (1951) Muir, A.
    • N
  • Myxobacteria in soils. use of rabbit dung pellets to detect myxobacteria in soils. (1951) Noren, B.
  • Colour reactions between clay minerals and root secretions. (1951) Nutman, P. S.
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  • The role of vegetation in meteorology, soil mechanics and hydrology. (1951) Penman, Howard Latimer
  • The water balance of catchment areas. (1951) Penman, Howard Latimer
  • Evaporation over the British Isles. (1951) Penman, Howard Latimer, Gold, M. E., McClean, W. N., Glasspoole, J., Bonacina, L. C. W.
  • Some physical aspects of assimilation and transpiration. (1951) Penman, Howard Latimer, Schofield, R. K.
  • The term Eelworm-free soil in plant quarantine regulations. (1951) Peters, B. G.
  • The clear representation of very small masses. (1951) Pirie, Norman Wingate (Bill)
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  • Surface properties of calcium phosphates. (1951) Rickson, J. B.
  • Surface properties of some calcium phosphates. (1951) Rickson, J. B.
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  • Nuclear division in amoebae and its bearing on classification. (1951) Singh, B. N.
  • A Method for Distinguishing Between Viable Spores and Mycelial Fragments of Actinomycetes in Soils. (1951) Skinner, F. A.
  • Some chloritic clay minerals of unusual type. (1951) Stephen, I., MacEwan, D. M. C.
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  • An improved suction trap for insects. (1951) Taylor, Roy
  • Some experiments and field observations on the germination of wild oat (Avena fatua and Avena ludoviciana) seeds in soil and the emergence of seedlings. (1951) Thurston, J. M.
  • A comparison of the growth of wild and of cultivated oats in manganese-deficient soil. (1951) Thurston, J. M.
  • Cellulase and chitinase of earthworms. (1951) Tracey, M. V.
    • W
  • Some interrelationships between manganese, molybdenum and vanadium in the nutrition of soybean, flax and oats. (1951) Warington, Katherine
  • The spread of beet yellows and beet mosaic viruses in the sugar-beet root crop. I. Field observations of the virus diseases of sugar beet and their vectors Myzus persicae Sulz. and Aphis fabae Koch. (1951) Watson, Marion, Hull, R., Blencowe, J. W., Hamlyn, B. G. picture_as_pdf
  • Beet yellows virus. (1951) Watson, Marion, Nixon, H. L.
  • The effect of infection with beet yellows and beet mosaic viruses on the carbohydrate content of sugar-beet leaves, and on translocation. (1951) Watson, Marion, Watson, D. J.
  • The selection and rearing of leaf-eating insects for use as test subjects in the study of insecticides. (1951) Way, M. J., Hopkins, B. A., Smith, P. M.
  • Changes in insect populations in the field in relation to preceding weather conditions. (1951) Williams, Carrington Bonsor
  • Comparing the efficiency of insect traps. (1951) Williams, Carrington Bonsor
  • Intra-generic competition as illustrated by Moreau's records of East African bird communities. (1951) Williams, Carrington Bonsor
  • Seasonal changes in flight direction of migrant butterflies in the British Isles. (1951) Williams, Carrington Bonsor
  • A note on the relative sizes of genera in the classification of animals and plants. (1951) Williams, Carrington Bonsor
  • Effect of moonlight on insect activity. (1951) Williams, Carrington Bonsor, Singh, B. P.
    • Y
  • Bases logiques de la planification des experiences. (1951) Yates, Frank
  • Contributions to Mathematical Statistics. (1951) Yates, Frank
  • Crop prediction in England. (1951) Yates, Frank
  • Quelques developpements modernes dans la planification des experiences. (1951) Yates, Frank
  • The influence of statistical methods for research workers on the development of the science of statistics. (1951) Yates, Frank
  • The survey of fertilizer practice. An example of operational research in agriculture. (1951) Yates, Frank, Boyd, D. A.
  • Statistical methods in anthropology. (1951) Yates, Frank, Healy, Michael John Romer