Number of items: 105.
Article
Effects of break crops, and of wheat volunteers growing in break crops or in set-aside or conservation covers, all following crops of winter wheat, on the development of take-all (Gaeumannomyces graminis var. tritici) in succeeding crops of winter wheat. (2014)
Jenkyn, John, Gutteridge, R. J., White, R. P.
Effects of crop debris and cultivations on the development of eyespot of wheat caused by Oculimacula spp. (2010)
Jenkyn, John, Gutteridge, R. J., Bateman, Geoff, Jalaluddin, M.
Preparations for war; a postscript to Harold Gough’s reminiscences of Rothamsted. (2010)
Jenkyn, John
Effects of nitrogen fertilizer and tridemorph on mildew, growth and yield of spring barley 1975–7. (2009)
Jenkyn, John, Finney, M. E., Dyke, G. V.
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Results from two barley experiments at Saxmundham, Suffolk, measuring effects of the fungicide benodanil on three varieties, given three amounts of nitrogen at two times 1973–4. (2009)
Widdowson, F. V., Jenkyn, John, Penny, A.
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Spring top-dressings of ‘Nitro-Chalk’ and late sprays of a liquid N-fertilizer and a broad spectrum fungicide for consecutive crops of winter wheat at Saxmundham, Suffolk. (2009)
Penny, A., Widdowson, F. V., Jenkyn, John
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Effects of fluquinconazole and silthiofam, applied as seed treatments to single or consecutive crops of wheat, on take-all epidemic development and grain yields. (2008)
Bateman, Geoff, Gutteridge, R. J., Jenkyn, John, Self, M. M.
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Effects of fungicide movement between plots in field experiments. (2007)
Jenkyn, John, Dyke, G. V., Todd, A. D.
The potential of non-pathogenic Gaeumannomyces spp., occurring naturally or introduced into wheat crops or preceding crops, for controlling take-all in wheat. (2007)
Gutteridge, R. J., Jenkyn, John, Bateman, Geoff
Effects of different cultivated or weed grasses, grown as pure stands or in combination with wheat, on take-all and its suppression in subsequent wheat crops. (2006)
Gutteridge, R. J., Jenkyn, John, Bateman, Geoff
Development of Oculimacula yallundae and O. acuformis (eyespot) on leaf sheaths of winter wheat in the UK in relation to thermal time. (2005)
Wan, A. M., Bock, C. H., Fitt, Bruce, Harvey, J. L., Jenkyn, John
Survival and multiplication of Gaeumannomyces graminis var. tritici (the wheat take-all fungus) and related fungi on different wild and cultivated grasses. (2005)
Gutteridge, R. J., Zhang, J-P., Jenkyn, John, Bateman, Geoff
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Take-all and grain yields in sequences of winter wheat crops testing fluquinconazole seed treatment applied in different combinations of years. (2004)
Bateman, Geoff, Gutteridge, R. J., Jenkyn, John
Some problems in the design and analysis of field experiments subject to interplot interference. (2003)
Dyke, George, Todd, A. D., Jenkyn, John
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Changes in populations of the eyespot fungi Tapesia yallundae and T. acuformis under different fungicide regimes in successive crops of winter wheat, 1984-2000. (2002)
Bierman, S. M., Fitt, Bruce, Vandenbosch, Frank, Bateman, Geoff, Jenkyn, John, Welham, Sue
Biology and control of stem-base diseases of cereals in the UK. (2001)
Bateman, Geoff, Jenkyn, John
Effects of incorporating different amounts of straw on growth, diseases and yield of consecutive crops of winter wheat grown on contrasting soil types. (2001)
Jenkyn, John, Christian, D. G., Bacon, E. T. G., Gutteridge, R. J., Todd, A. D.
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Effects of foliar sprays of azoxystrobin on take-all in wheat. (2000)
Jenkyn, John, Bateman, Geoff, Gutteridge, R. J., Edwards, S. G.
Interactions of straw disposal methods and direct drilling or cultivations on winter wheat (Triticum aestivum ) grown on a clay soil. (1999)
Christian, D. G., Bacon, E. T. G., Brockie, D., Glen, D., Gutteridge, R. J., Jenkyn, John
'Observations of Weather' The Weather Diary of Sir John Wittewronge of Rothamsted 1684-89 (Hertfordshire Records Publications, Vol. 15). (1999)
Williams, M. H., Stevenson, J. H., Jenkyn, John, Prew, R. D., Roach, W.
Exploit that break. (1998)
Gutteridge, R. J., Jenkyn, John
Obituary: 1921-97: John Malcolm ('Jim') Hirst, FRS. (1998)
Plumb, Roger, Jenkyn, John
A comparison of management regimes for one-year rotational set-aside within a sequence of winter wheat crops, and of growing wheat without interruption. 3. Effects on diseases. (1998)
Jenkyn, John, Gutteridge, R. J., Todd, A. D.
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Effects of inoculum sources on the accuracy and precision of experiments testing different times of applying fungicides to control powdery mildew (Erysiphe graminis f. sp. hordei ) on spring barley. (1996)
Jenkyn, John, Todd, A. D., Bainbridge, A., Dyke, George
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Effects of wheat crop debris on the sporulation and survival of Pseudocercosporella herpotrichoides. (1996)
Jalaluddin, M., Jenkyn, John
Occurrence of severe take-all in winter wheat after many years of growing spring barley, and effects of soil phosphate. (1996)
Gutteridge, R. J., Jenkyn, John, Poulton, Paul
Inter-plot interference and nearest-neighbour analysis of field experiments. (1995)
Ainsley, A. E., Dyke, G. V., Jenkyn, John
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Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91. (1995)
Prew, R. D., Ashby, J. E., Bacon, E. T. G., Christian, D. G., Gutteridge, R. J., Jenkyn, John, Powell, W., Todd, A. D.
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Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley. (1995)
Jenkyn, John, Gutteridge, R. J., Todd, A. D.
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Effects of sowing date and vernalisation on the growth of winter barley and its resistance to powdery mildew (Erysiphe graminis f.sp. hordei). (1995)
White, N., Jenkyn, John
Sensitivity (stability) analysis of multiple variety trials, with special reference to data expressed as proportions or percentages. (1995)
Dyke, George, Lane, P. W., Jenkyn, John
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Effects of seven factors on the growth and yield of winter barley grown as a third consecutive take-all susceptible crop and of growing the barley after oats or a fallow. (1992)
Jenkyn, John, Carter, N., Darby, R. J., Gutteridge, R. J., Mullen, L. A., Plumb, Roger, Ross, G. J. S., Todd, A. D., Widdowson, F. V., Wood, D. W.
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Effects of sowing winter barley on different dates in autumn on the severity of take-all (Gaeumannomyces graminis var. tritici) in those and the subsequent crops. (1992)
Jenkyn, John, Gutteridge, R. J., Todd, A. D.
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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. (1991)
Jenkyn, John, Gutteridge, R. J., Todd, A. D.
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Agronomic aspects of straw incorporation. (1990)
Prew, R. D., Cussans, G. W., Glen, D. M., Jenkyn, John
Effects of defoliation at different growth stages and in different grain-filling environments on the growth and yield of spring barley. (1990)
Jenkyn, John, Anilkumar, T. B.
The dynamics of nitrogen accumulation in barley grain and malting quality. (1990)
Norman L Carreck, Christian, D. G., Jenkyn, John
Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley. (1989)
Jenkyn, John, Stedman, O. J., Dyke, George, Todd, A. D.
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Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley. (1989)
Jenkyn, John, Dyke, George, Stedman, O. J., Todd, A. D.
Activity of triadimefon vapour against Erysiphe graminis f. sp. hordei . (1988)
Jenkyn, John, White, N.
Effects of treatments to perennial ryegrass on the development of Septoria spp. in a subsequent crop of winter wheat. (1988)
Jenkyn, John, King, J. E.
Results from experiments on winter barley measuring the effects of amount and timing of nitrogen and some other factors on the yield and nitrogen content of the grain. (1986)
Penny, A., Widdowson, F. V., Jenkyn, John
The effects of sowing date and other factors on growth, yield and nitrogen uptake, and on the incidence of pests and diseases, of winter barley at Rothamsted from 1981 to 1983. (1986)
Widdowson, F. V., Darby, R. J., Dewar, A. M., Jenkyn, John, Kerry, B. R., Lawlor, David, Plumb, Roger, Ross, G. J. S., Scott, G. C., Todd, A. D., Wood, D. W.
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Biological effectiveness of electrostatically charged rotary atomisers. II. Trials with cereals, 1982. (1984)
Arnold, A. J., Cayley, G. R., Dunne, Y., Etheridge, P., Griffiths, D. C., Jenkyn, John, Philips, F. T., Pye, B. J., Scott, G. C., Woodcock, Christine
Effects of powdery mildew on grain filling in spring barley in contrasting environments. (1984)
Jenkyn, John
Experiments to examine the significance of ammonia evolution from barley seedlings infected with the powdery mildew fungus, Erysiphe graminis f.sp. hordei. (1984)
Jenkyn, John, Finney, M. E.
Effects of fungicides and insecticides applied to spring barley sown on different dates in 1976-79. (1983)
Jenkyn, John, Plumb, Roger
Experiments with solid and liquid N-fertilizers and fungicides on winter wheat at Saxmundham, Suffolk, 1976–9. (1983)
Penny, A., Widdowson, F. V., Jenkyn, John
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Results from factorial experiments testing amounts and times of granular N-fertilizer, late sprays of liquid N-fertilizer and fungicides to control mildew and brown rust on two varieties of spring barley at Saxmundham, Suffolk 1975–8. (1982)
Widdowson, F. V., Jenkyn, John, Penny, A.
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The influence of cultural-factors and mildew on yield of winter barley. (1980)
Bainbridge, A., Finney, M. E., Jenkyn, John
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Investigation into inter-plot interactions, in experiments with mildew on barley, using balanced designs. (1979)
Jenkyn, John, Bainbridge, A., Dyke, G. V., Todd, A. D.
Effects of pesticides on a perennial ryegrass sward. (1978)
Plumb, Roger, Jenkyn, John, Broom, E. W.
Effects of chemical treatments for mildew control at different times on growth and yield of spring barley. (1978)
Jenkyn, John
Effects of fungicides and insecticides on mildew, viruses and root yield of swedes. (1977)
Jenkyn, John, Rawlinson, C. J.
Observations on the origins of Septoria nodorum infection of winter wheat. (1977)
Jenkyn, John, King, J. E.
Interference between plots as a source of error in experiments with erysiphe-graminis. (1977)
Jenkyn, John
Pathogens occurring on ten varieties of ryegrass at Rothamsted in 1973-1974. (1976)
Plumb, Roger, Jenkyn, John, Bowen, R.
Effects of mildew (Erysiphe graminis) on green leaf area of Zephyr spring barley, 1973. (1976)
Jenkyn, John
Mildew reinfection in adjacent and separated plots of sprayed barley. (1976)
Bainbridge, A., Jenkyn, John
Observations on mildew development in winter cereals: 1968-73. (1976)
Jenkyn, John
The effect of benomyl sprays on Sclerotinia trifoliorum and yield of red clover. (1975)
Jenkyn, John
Effect of ethirimol seed dressings on yield of spring barley grown with different amounts of nitrogen fertilizer 1969-71. (1975)
Jenkyn, John, Moffatt, J. R.
Results from two experiments with winter wheat, comparing top-dressings of a liquid N-fertilizer either alone or with added herbicide or mildew fungicide or both, and of 'Nitro-Chalk' without or with herbicide or fungicide or both. (1975)
Penny, A., Jenkyn, John
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Effects of mildew on the growth and yield of spring barley: 1969‐72. (1974)
Jenkyn, John
Seasonal changes in infection of barley seedlings by Erysiphe graminis f.sp. hordei. (1974)
Jenkyn, John
Disease gradients and small plot experiments on barley mildew. (1974)
Jenkyn, John, Bainbridge, A.
A comparison of seasonal changes in deposition of spores of Erysiphe graminis on different trapping surfaces. (1974)
Jenkyn, John
Activity of six fungicides against cereal foliage and root diseases. (1973)
Jenkyn, John, Prew, R. D.
The effect of fungicides on incidence of Sporobolomyces spp. and Cladosporium spp. on flag leaves of winter wheat. (1973)
Jenkyn, John, Prew, R. D.
Seasonal changes in incubation time of Erysiphe graminis f.sp. hordei. (1973)
Jenkyn, John
An apparatus for the isolated propagation of foliar pathogens and their hosts. (1973)
Jenkyn, John, Hirst, J. M., King, G.
Book Section
Straw disposal and cereal diseases. (1994)
Jenkyn, John, Gutteridge, R. J., Jalaluddin, M.
Chairman's comments. (1981)
Lester, E.
Chemicals in the control of cereal virus diseases. (1981)
Plumb, Roger
Cropping systems in relation to soil-borne and trash-borne diseases of cereals. (1981)
Prew, R. D.
Fungicides, fertilizers and sowing date. (1981)
Jenkyn, John, Finney, M. E.
Report
Interactions between cropping systems and soil-borne cereal pathogens (Final project report for DEFRA project CE0525). (2003)
Jenkyn, John
Strategies for fungicidal control of take-all. (H-GCA Project Report No. 309). (2003)
Bateman, Geoff, Freeman, Jackie, Gutteridge, R. J., Jenkyn, John, Ward, E.
Effects of azoxystrobin on wheat take-all (H-GCA Project Report 285). (2002)
Jenkyn, John, Gutteridge, R. J.
Interactions between cropping systems and soil-borne cereal pathogens (Annual/interim report for DEFRA project CE0525 2001-2002). (2002)
Jenkyn, John
Interactions between cropping systems and soil-borne cereal pathogens (Project CE0525)(Scientific report for DEFRA Review of Cereal and Oilseed Disease Epidemiology). (2002)
Bateman, Geoff, Jenkyn, John
Interactions between cropping systems and soil-borne cereal pathogens (Annual/interim report for MAFF project CE0525 2000-2001). (2001)
Jenkyn, John
Laboratory and field testing of fungicides for control of ergot in wheat and rye (HGCA Project Report No. 254). (2001)
Gladders, P., Evans, V. J., Jenkyn, John, Lockley, K. D., Mantle, P. G.
Conference or Workshop Item
Wheat rhizosphere interactions and natural suppression of take-all disease: effects of grass weeds and wheat cultivar on inoculum and disease. (2005)
Bateman, Geoff, Gutteridge, R. J., Jenkyn, John
Effects of cultivation method and crop debris on wheat stem-base diseases and take-all. (2004)
Jenkyn, John, Gutteridge, R. J., Bateman, Geoff
Development of eyespot on winter wheat in the UK I: penetration and infection of leaf sheaths in relation to thermal time. (2003)
Wan, A., Bock, C. H., Fitt, Bruce, Jenkyn, John, Harvey, J. L., Goulds, A.
Development of eyespot on winter wheat in the UK II: infection and lesion development on stems in relation to thermal time. (2003)
Bock, C. H., Wan, A., Fitt, Bruce, Jenkyn, John, Harvey, J. L., Goulds, A.
Optimising the benefits of fluquinconazole seed treatment in sequences of winter wheat crops. (2003)
Bateman, Geoff, Jenkyn, John, Gutteridge, R. J.
Effects of fluquinconazole seed treatment on take-all and yield of winter wheat, and its exploitation in cropping systems. (2001)
Jenkyn, John, Gutteridge, R. J., Bateman, Geoff
Controlling take-all in sequences of winter cereal crops using fluquinconazole seed treatment. (2000)
Bateman, Geoff, Jenkyn, John, Dawson, W. A. J. M., Gutteridge, R. J.
Fungicides for the control of ergot in cereal crops. (2000)
Evans, V. J., Jenkyn, John, Gladders, P., Mantle, P. G.
Towards better understanding and management of cereal stem-base diseases. (2000)
Bateman, Geoff, Jenkyn, John
Effects of cultivating one-year rotational set-aside at different times on take-all disease of winter wheat. (1996)
Jenkyn, John, Gutteridge, R. J., Gladders, P., Yarham, D. J.
Effects on wheat diseases of three and five year set-aside covers. (1996)
Jones, D. R., Froment, M. A., Jenkyn, John, Gutteridge, R. J.
Evaluation of 'Seamac 600' applied to winter barley. (1991)
Jenkyn, John, Baxter, E. D.
Fungal pathogens of grain lupins 1986-1991. (1991)
Bateman, Geoff, Jenkyn, John, Johnson, S. A., Da Silva, L.
Agronomic aspects of straw incorporation. (1990)
Prew, R. D., Cussans, G. W., Glen, D. M., Jenkyn, John
Effects of premature or delayed harvesting on the quality of barley for malting. (1990)
Baxter, E. D., Jenkyn, John
Effects of straw incorporation and cultivations on cereal diseases. (1988)
Jenkyn, John, Gutteridge, R. J., Thomas, M. R.
Straw residue management for autumn-sown cereals grown on a clay soil, 1979-1987. (1988)
Christian, D. G., Bacon, E. T. G., Jenkyn, John, Glen, D. M., Gutteridge, R. J.
Interference between plots in experiments with plant pathogens. (1985)
Jenkyn, John, Dyke, G. V.
Effects of barley powdery mildew on grain filling in contrasting environments. (1983)
Jenkyn, John
Field evaluation of pesticides: the changing scene. (1978)
Jenkyn, John, Griffiths, D. C.
Nitrogen and leaf diseases of spring barley. (1977)
Jenkyn, John
