Computational and Analytical Sciences
| Title | Computational and Analytical Sciences |
|---|---|
| Type | Science Department |
| Institute | Rothamsted Research |
| Head | Chris Rawlings |
| Executive Assistant | Sally Murdoch |
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Effects of temperature and wetness duration on conidial infection, latent period and asexual sporulation of Pyrenopeziza brassicae on leaves of oilseed rape
A - Papers appearing in refereed journals
Gilles, T., Fitt, B. D. L., Kennedy, R., Welham, S. J. and Jeger, M. J. 2000. Effects of temperature and wetness duration on conidial infection, latent period and asexual sporulation of Pyrenopeziza brassicae on leaves of oilseed rape. Plant Pathology. 49 (4), pp. 498-508. https://doi.org/10.1046/j.1365-3059.2000.00474.x
Forecasting light leaf spot of winter oilseed rape in the UK
C2 - Non-edited contributions to conferences
Evans, N., Fitt, B. D. L. and Welham, S. J. 1999. Forecasting light leaf spot of winter oilseed rape in the UK.
Optimising the use of fungicides to control stem canker of oilseed rape
C1 - Edited contributions to conferences/learned societies
West, J. S., Leech, P. K., Fitt, B. D. L., Welham, S. J., Penaud, A., Peres, A. and Poisson, B. 1999. Optimising the use of fungicides to control stem canker of oilseed rape. Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. (CD-ROM) .
Yield loss of winter oilseed rape in relation to severity of stem canker (Leptosphaeria maculans ) in the UK
C1 - Edited contributions to conferences/learned societies
Zhou, Y., Fitt, B. D. L., Welham, S. J., Gladders, P., Sansford, C. E. and West, J. S. 1999. Yield loss of winter oilseed rape in relation to severity of stem canker (Leptosphaeria maculans ) in the UK. Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. (CD-ROM) .
Effects of temperature and wetness duration on infection of oilseed rape by ascospores of A-group or B-group Leptosphaeria maculans (stem canker)
C1 - Edited contributions to conferences/learned societies
Biddulph, J. E., Fitt, B. D. L., Jedryczka, M., West, J. S. and Welham, S. J. 1999. Effects of temperature and wetness duration on infection of oilseed rape by ascospores of A-group or B-group Leptosphaeria maculans (stem canker). Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. (CD-ROM) .
Epidemiology, forecasting and management of winter oilseed rape diseases in the UK
C1 - Edited contributions to conferences/learned societies
Fitt, B. D. L., Gladders, P., Sutherland, K. G., Turner, J. A. and Welham, S. J. 1999. Epidemiology, forecasting and management of winter oilseed rape diseases in the UK. Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. (CD-ROM) .
The analysis of designed experiments and longitudinal data using smoothing splines
A - Papers appearing in refereed journals
Verbyla, A. P., Cullis, B. R., Kenward, M. G. and Welham, S. J. 1999. The analysis of designed experiments and longitudinal data using smoothing splines. Applied Statistics. 48, pp. 269-311. https://doi.org/10.1111/1467-9876.00154
Forecasting light leaf spot (Pyrenopeziza brassicae ) of winter oilseed rape (Brassica napus ) on the Internet
A - Papers appearing in refereed journals
Souter, S. D., Castells-Brooke, N. I. D., Antoniw, J. F., Welham, S. J., Fitt, B. D. L., Evans, N., Gladders, P., Turner, J. A. and Sutherland, K. 1999. Forecasting light leaf spot (Pyrenopeziza brassicae ) of winter oilseed rape (Brassica napus ) on the Internet. Aspects of Applied Biology. 55, pp. 37-42.
Quantification of rainsplash for improved prediction of Septoria disease risk
A - Papers appearing in refereed journals
Lovell, D. J., Parker, S. R., Van Petegheim, P., Webb, D. A. and Welham, S. J. 1999. Quantification of rainsplash for improved prediction of Septoria disease risk. Aspects of Applied Biology. 55, pp. 7-14.
Effects of severity and timing of stem canker (Leptosphaeria maculans ) symptoms on yield of winter oilseed rape (Brasica napus ) in the UK
A - Papers appearing in refereed journals
Zhou, Y., Fitt, B. D. L., Welham, S. J., Gladders, P., Sansford, C. E. and West, J. S. 1999. Effects of severity and timing of stem canker (Leptosphaeria maculans ) symptoms on yield of winter oilseed rape (Brasica napus ) in the UK. European Journal of Plant Pathology. 105, pp. 715-728. https://doi.org/10.1023/A:1008761219493
Effects of temperature and wetness duration on infection of oilseed rape leaves by ascospores of Leptosphaeria maculans (stem canker)
A - Papers appearing in refereed journals
Biddulph, J. E., Fitt, B. D. L., Leech, P. K., Welham, S. J. and Gladders, P. 1999. Effects of temperature and wetness duration on infection of oilseed rape leaves by ascospores of Leptosphaeria maculans (stem canker). European Journal of Plant Pathology. 105, pp. 769-781.
Relationships between regional weather and incidence of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in England and Wales
C1 - Edited contributions to conferences/learned societies
Welham, S. J., Fitt, B. D. L., Turner, J. A., Gladders, P. and Sutherland, K. 1999. Relationships between regional weather and incidence of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in England and Wales. Protection and Production of Combinable Break Crops. Aspects of Applied Biology 56 . pp. 51-59
Modelling the progress of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus) in relation to weather criteria
C1 - Edited contributions to conferences/learned societies
Papastamati, K., Welham, S. J., Fitt, B. D. L. and Gladders, P. 1999. Modelling the progress of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus) in relation to weather criteria. Information Technology for Crop Protection. Aspects of Applied Biology 55 . pp. 49-55
Sampling winter oilseed rape crops to assess incidence of light leaf spot (Pyrenopeziza brassicae ) in the UK
C1 - Edited contributions to conferences/learned societies
Evans, N., Fitt, B. D. L., McCartney, H. A., Welham, S. J. and Mcroberts, N. 1999. Sampling winter oilseed rape crops to assess incidence of light leaf spot (Pyrenopeziza brassicae ) in the UK. Protection and Production of Combinable Break Crops. Aspects of Applied Biology 56 . pp. 123-128
Investigating the horizontal spatial spread of light leaf spot (Pyrenopeziza brassicae ) of winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Evans, N., Fitt, B. D. L., McCartney, H. A., Welham, S. J. and Mcroberts, N. 1999. Investigating the horizontal spatial spread of light leaf spot (Pyrenopeziza brassicae ) of winter oilseed rape in the UK. Information Technology for Crop Protection. Aspects of Applied Biology 55 . pp. 31-36
Conditions for infection of oilseed rape leaves by ascospores of UK (A group) and Polish (B group) Leptosphaeria maculans (stem canker)
G - Articles in popular magazines and other technical publications
Biddulph, J. E., Fitt, B. D. L., Gladders, P., Jedryczka, M., West, J. S. and Welham, S. J. 1999. Conditions for infection of oilseed rape leaves by ascospores of UK (A group) and Polish (B group) Leptosphaeria maculans (stem canker). GCIRC Bulletin. 16, pp. 82-83.
Empirical models for prediction of regional light leaf spot (Pyrenopeziza brassicae ) incidence on winter oilseed rape in the UK
C2 - Non-edited contributions to conferences
Welham, S. J., Turner, J. A., Fitt, B. D. L., Gladders, P. and Sutherland, K. G. 1998. Empirical models for prediction of regional light leaf spot (Pyrenopeziza brassicae ) incidence on winter oilseed rape in the UK. Abstracts ICPP98 7th International Congress of Plant Pathology, Edinburgh, 9-16 August 1998 . pp. 2.1.9
Development of a system for forecasting severe light leaf spot in winter oilseed rape
C2 - Non-edited contributions to conferences
Sutherland, K. G., Fitt, B. D. L., Gladders, P., Steed, J. M., Turner, J. A. and Welham, S. J. 1998. Development of a system for forecasting severe light leaf spot in winter oilseed rape. Abstracts ICPP98 7th International Congress of Plant Pathology, Edinburgh, 9-16 August 1998 . pp. 3.1.16
Simulation modelling of the progress of light leaf spot on winter oilseed rape (Brassica napus ) in relation to criteria for infection by Pyrenopeziza brassicae
C2 - Non-edited contributions to conferences
Papastamati, K., Welham, S. J., Fitt, B. D. L. and Gladders, P. 1998. Simulation modelling of the progress of light leaf spot on winter oilseed rape (Brassica napus ) in relation to criteria for infection by Pyrenopeziza brassicae. Abstracts ICPP98 7th International Congress of Plant Pathology, Edinburgh, 9-16 August 1998 . pp. 2.1.15
Forecasting and management of light leaf spot and stem canker on winter oilseed rape
C2 - Non-edited contributions to conferences
Fitt, B. D. L., Steed, J. L., Welham, S. J., West, J. S., Gladders, P. and Meakin, P. 1998. Forecasting and management of light leaf spot and stem canker on winter oilseed rape. Abstracts ARIA Meeting, Harpenden, 4 November 1998 .
Effects of temperature and wetness duration on infection of oilseed rape leaves by ascospores of Leptosphaeria maculans (stem canker)
C2 - Non-edited contributions to conferences
Biddulph, J. E., Fitt, B. D. L. and Welham, S. J. 1998. Effects of temperature and wetness duration on infection of oilseed rape leaves by ascospores of Leptosphaeria maculans (stem canker). Abstracts ICPP98 7th International Congress of Plant Pathology, Edinburgh, 9-16 August 1998 . pp. 2.5.13
Development and control of light leaf spot (Pyrenopeziza brassicae ) epidemics in winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Sutherland, K. G., Fitt, B. D. L., Steed, J. M., Welham, S. J., Gladders, P. and Turner, J. A. 1998. Development and control of light leaf spot (Pyrenopeziza brassicae ) epidemics in winter oilseed rape in the UK. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1998 . pp. 1053-1058
Effects of light leaf spot (Pyrenopeziza brassicae ) on yield of winter oilseed rape (Brassica napus )
A - Papers appearing in refereed journals
Su, H., Fitt, B. D. L., Welham, S. J., Sansford, C. E. and Sutherland, K. G. 1998. Effects of light leaf spot (Pyrenopeziza brassicae ) on yield of winter oilseed rape (Brassica napus ). Annals of Applied Biology - AAB. 132 (3), pp. 371-386. https://doi.org/10.1111/j.1744-7348.1998.tb05215.x
Epidemiology and forecasting of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Fitt, B. D. L., Gladders, P., Sutherland, K. G., Turner, J. A., Welham, S. J., Biddulph, J. E., Hardwick, N. V. and Wale, S. J. 1998. Epidemiology and forecasting of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK.
Estimating yield loss from light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus ) in the UK
C1 - Edited contributions to conferences/learned societies
Su, H., Sansford, C. E., Fitt, B. D. L., Gladders, P., Lockley, K. D., Sutherland, K. G. and Welham, S. J. 1998. Estimating yield loss from light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus ) in the UK.
Genstat 5 Release 4.1 reference manual supplement
E - Books edited/written by staff member, alone/with others
Payne, R. W., Lane, P. W., Baird, D. B., Gilmour, A. R., Harding, S. A., Morgan, G. W., Murray, D. A., Thompson, R., Todd, A. D., Tunnicliffe Wilson, G., Webster, R. and Welham, S. J. 1997. Genstat 5 Release 4.1 reference manual supplement. Numerical Algorithms Group, Oxford.
Genstat for Windows command language manual
E - Books edited/written by staff member, alone/with others
Payne, R. W., Lane, P. W., Baird, D. B., Gilmour, A. R., Harding, S. A., Morgan, G. W., Murray, D. A., Thompson, R., Todd, A. D., Tunnicliffe Wilson, G., Webster, R. and Welham, S. J. 1997. Genstat for Windows command language manual. Numerical Algorithms Group, Oxford.
Effects of planting mixtures of different sizes of potato seed tubers on the yield and size of tubers
A - Papers appearing in refereed journals
Hide, G. A., Welham, S. J., Read, P. J. and Ainsley, A. E. 1997. Effects of planting mixtures of different sizes of potato seed tubers on the yield and size of tubers. The Journal of Agricultural Science. 128 (2), pp. 173-180. https://doi.org/10.1017/S0021859696004017
Genstat 5 Release 4.1 reference summary
E - Books edited/written by staff member, alone/with others
Payne, R. W., Lane, P. W., Baird, D. B., Gilmour, A. R., Harding, S. A., Morgan, G. W., Murray, D. A., Thompson, R., Todd, A. D., Tunnicliffe Wilson, G., Webster, R. and Welham, S. J. 1997. Genstat 5 Release 4.1 reference summary. Numerical Algorithms Group, Oxford.
Effects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae ) on oilseed rape (Brassica napus )
A - Papers appearing in refereed journals
Inman, A. J., Fitt, B. D. L., Welham, S. J., Evans, R. L. and Murray, D. A. 1997. Effects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae ) on oilseed rape (Brassica napus ). Annals of Applied Biology - AAB. 130, pp. 239-253.
Estimating yield loss from light leaf spot (Pyrenopeziza brassica ) on winter oilseed rape
G - Articles in popular magazines and other technical publications
Su, H., Fitt, B. D. L., Gladders, P., Hardwick, N. V., Lockley, K. D., Sansford, C. E., Sutherland, K. G. and Welham, S. J. 1997. Estimating yield loss from light leaf spot (Pyrenopeziza brassica ) on winter oilseed rape. GCIRC Bulletin. 13, pp. 75-78.
Predicting severe light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the U.K.
G - Articles in popular magazines and other technical publications
Fitt, B. D. L., Gladders, P., Turner, J. R., Sutherland, K. G. and Welham, S. J. 1997. Predicting severe light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the U.K. GCIRC Bulletin. 13, pp. 72-74.
Likelihood ratio tests for fixed model terms using residual maximum likelihood
A - Papers appearing in refereed journals
Welham, S. J. and Thompson, R. 1997. Likelihood ratio tests for fixed model terms using residual maximum likelihood. Journal of the Royal Statistical Society, Series B (Statistical Methodology). 59 (3), pp. 701-714. https://doi.org/10.1111/1467-9868.00092
Prospects for developing a forecasting scheme to optimise use of fungicides for disease control on winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Fitt, B. D. L., Gladders, P., Turner, J. A., Sutherland, K. G., Welham, S. J. and Davies, J. M. L. 1997. Prospects for developing a forecasting scheme to optimise use of fungicides for disease control on winter oilseed rape in the UK. Optimising Pesticide Applications. Aspects of Applied Biology 48 . pp. 135-142
Genstat 5 Release 3.2 Command Language Manual
E - Books edited/written by staff member, alone/with others
Payne, R. W., Lane, P. W., Baird, D. B., Harding, S. A., Murray, D. A., Morgan, G. W., Todd, A. D., Thompson, R., Tunnicliffe Wilson, G., Webster, R. J., Welham, S. J. and White, Robin P. 1996. Genstat 5 Release 3.2 Command Language Manual. Numerical Algorithms Group, Oxford.
Designing experiments to examine competition effects between neighbouring plants in mixed populations
C1 - Edited contributions to conferences/learned societies
Welham, S. J., Bailey, R. A., Ainsley, A. E. and Hide, G. A. 1996. Designing experiments to examine competition effects between neighbouring plants in mixed populations. Proceedings XVIIIth International Biometric Conference, 1996 . pp. 97-105
Predicting risk of severe light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Fitt, B. D. L., Gladders, P., Turner, J. A., Sutherland, K. G. and Welham, S. J. 1996. Predicting risk of severe light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1996 . pp. 239-244
The yield of potato plants as affected by stem canker (Rhizoctonia solani ), blackleg (Erwinia carotovora subsp. atroseptica ) and by neighbouring plants
A - Papers appearing in refereed journals
Hide, G. A., Welham, S. J., Read, P. J. and Ainsley, A. E. 1996. The yield of potato plants as affected by stem canker (Rhizoctonia solani ), blackleg (Erwinia carotovora subsp. atroseptica ) and by neighbouring plants. The Journal of Agricultural Science. 126 (4), pp. 429-440. https://doi.org/10.1017/S0021859600075511
Effects of wetness period and temperature on development of dark pod spot (Alternaria brassicae ) on oilseed rape (Brassica napus )
A - Papers appearing in refereed journals
Hong, C. X., Fitt, B. D. L. and Welham, S. J. 1996. Effects of wetness period and temperature on development of dark pod spot (Alternaria brassicae ) on oilseed rape (Brassica napus ). Plant Pathology. 45 (6), pp. 1077-1089. https://doi.org/10.1046/j.1365-3059.1996.d01-193.x
Method to determine elemental sulphur in soils applied to measure sulphur oxidation
A - Papers appearing in refereed journals
Zhao, F-J., Loke, S. Y., Crosland, A. R. and McGrath, S. P. 1996. Method to determine elemental sulphur in soils applied to measure sulphur oxidation. Soil Biology and Biochemistry. 28 (8), pp. 1083-1087. https://doi.org/10.1016/0038-0717(96)00073-9