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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Multivariate spatial statistical analysis in perennial crops
C2 - Non-edited contributions to conferences
Vilela De Resende, M. D., Thompson, R., Welham, S. J. and Baierl, A. 2003. Multivariate spatial statistical analysis in perennial crops. Abstracts International Biometric Society British Region Conference, Reading, 16-18 September 2003 . pp. 70
Spatial aspects of light leaf spot (Pyrenopeziza brassicae ) epidemic development on winter oilseed rape (Brassica napus ) in the United Kingdom
A - Papers appearing in refereed journals
Evans, N., Baierl, A., Brain, P., Welham, S. J. and Fitt, B. D. L. 2003. Spatial aspects of light leaf spot (Pyrenopeziza brassicae ) epidemic development on winter oilseed rape (Brassica napus ) in the United Kingdom. Phytopathology. 93 (6), pp. 657-665. https://doi.org/10.1094/PHYTO.2003.93.6.657
Geographic variation in phenotypic traits in Phratora spp. and the effects of conditioning on feeding preference
A - Papers appearing in refereed journals
Peacock, L., Carter, P., Powers, S. J. and Karp, A. 2003. Geographic variation in phenotypic traits in Phratora spp. and the effects of conditioning on feeding preference. Entomologia Experimentalis et Applicata. 109 (1), pp. 31-37. https://doi.org/10.1046/j.1570-7458.2003.00090.x
Interactive forecasting of light leaf spot (Pyrenopeziza brassicae ) risk for winter oilseed rape on the internet
C1 - Edited contributions to conferences/learned societies
Evans, N., Steed, J. M., Welham, S. J., Antoniw, J. F., Baierl, A., Turner, J. A., Gladders, P. and Fitt, B. D. L. 2003. Interactive forecasting of light leaf spot (Pyrenopeziza brassicae ) risk for winter oilseed rape on the internet. Proceedings 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 1067-1069
Impacts of environmental change on aphids throughout Europe
C2 - Non-edited contributions to conferences
Harrington, R., Denholm, C. H., Verrier, P. J., Clark, S. J., Welham, S. J., Hulle, M., Maurice, D., Rounsevell, M., Cocu, N., Knight, J., Bell, N., Barbagallo, S., Basky, Z., Coceano, P. G., Derron, J., Katis, N., Lukasova, H., Marrkula, I., Mohar, J., Pickup, J., Rolot, J-L., Ruszkowska, M., Schliephake, E., Seco-Fernandez, M-V., Sigvald, R., Tsitsipis, J. and Ulber, B. 2003. Impacts of environmental change on aphids throughout Europe. Abstracts Integrated Biological Systems Conference, San Antonio, Texas, 14-16 April 2003 . pp. 39-40
First-order differential equation models with estimable parameters as functions of environmental variables and their application to a study of vascular development in young hybrid aspen stems
A - Papers appearing in refereed journals
Powers, S. J., Brain, P. and Barlow, P. W. 2003. First-order differential equation models with estimable parameters as functions of environmental variables and their application to a study of vascular development in young hybrid aspen stems. Journal of Theoretical Biology. 222 (2), pp. 219-232. https://doi.org/10.1016/S0022-5193(03)00030-4
Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors
C2 - Non-edited contributions to conferences
Papastamati, K., Van Den Bosch, F., Welham, S. J., Fitt, B. D. L., Evans, N. and Steed, J. M. 2002. Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors. Cambridge University Press (CUP).
Confidential report to Bayer CropScience
D1 - Technical reports: non-confidential
Newman, J. R., Powers, S. J., Kaur, P. and Caswell, B. 2002. Confidential report to Bayer CropScience.
Confidential report to Monsanto
D1 - Technical reports: non-confidential
Newman, J. R., Powers, S. J., Kaur, P. and Caswell, B. 2002. Confidential report to Monsanto.
Confidential report to Monsanto
D1 - Technical reports: non-confidential
Kaur, P., Caswell, B., Newman, J. R. and Powers, S. J. 2002. Confidential report to Monsanto.
Examine(exploitation of aphis monitoring in europe): an EU thematic network for the study of global change impacts on aphid dynamics
C2 - Non-edited contributions to conferences
Denholm, C. H., Barbagallo, S., Basky, Z., Bell, J. N. B., Clark, S. J., Coceano, P-G., Cocu, N., Colucci, R., Derron, J., Ferrara, V., Gotlin Euljak, T., Harrington, R., Hatala Zseller, I., Hulle, M., Katis, N., Knight, J. D., Limonta, L., Lukasova, H., Markkula, I., Maurice, D., Mohar, J., Pickup, J., Rolot, J-L., Rounsevell, M. D. A., Ruszkowska, M., Schleiphake, E., Seco-Fernandez, M. V., Sigvald, R., Verrier, P. J. and Welham, S. J. 2002. Examine(exploitation of aphis monitoring in europe): an EU thematic network for the study of global change impacts on aphid dynamics. Abstracts 7th European Congress of Entomology, Thessaloniki, 7-13 October 2002 . pp. 317
Improving and exploiting self-defence against wheat diseases
C1 - Edited contributions to conferences/learned societies
Parker, S. R., Paveley, N. D., Foulkes, M. J., Lovell, D. J., Welham, S. J. and Worland, A. J. 2002. Improving and exploiting self-defence against wheat diseases. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2002 . pp. 919-924
Analysis of time series
B - Book chapters etc edited externally
Tunnicliffe Wilson, G. and Welham, S. J. 2002. Analysis of time series. in: Payne, R. W. (ed.) Guide to GenStat release 6.1. Part 2. Statistics VSN International, Hemel Hempstead. pp. 705-788
REML analysis of mixed models
B - Book chapters etc edited externally
Thompson, R. and Welham, S. J. 2002. REML analysis of mixed models. in: Payne, R. W. (ed.) Guide to GenStat release 6.1. Part 2. Statistics Hemel Hempstead VSN International. pp. 461-560
GenStat release 6.1 reference manual. Part 2. Directives
E - Books edited/written by staff member, alone/with others
Payne, R. W., Baird, D. B., Cherry, M., Gilmour, A. R., Harding, S. A., Lane, P. W., Morgan, G. W., Murray, D. A., Soutar, D. M., Thompson, R., Todd, A. D., Tunnicliffe Wilson, G., Webster, R. and Welham, S. J. 2002. GenStat release 6.1 reference manual. Part 2. Directives. Hemel Hempstead VSN International.
GenStat release 6.1 reference manual. Part 1. Summary
E - Books edited/written by staff member, alone/with others
Payne, R. W., Baird, D. B., Cherry, M., Gilmour, A. R., Harding, S. A., Lane, P. W., Morgan, G. W., Murray, D. A., Soutar, D. M., Thompson, R., Todd, A. D., Tunnicliffe Wilson, G., Webster, R. and Welham, S. J. 2002. GenStat release 6.1 reference manual. Part 1. Summary. Hemel Hempstead VSN International.
ASREML user guide release 1.0
D1 - Technical reports: non-confidential
Gilmour, A. R., Gogel, B. J., Cullis, B. R., Welham, S. J. and Thompson, R. 2002. ASREML user guide release 1.0. VSN International, Hemel Hempstead.
Estimation of directional division frequencies in vascular cambium and in marginal meristematic cells of plants
A - Papers appearing in refereed journals
Barlow, P. W., Brain, P. and Powers, S. J. 2002. Estimation of directional division frequencies in vascular cambium and in marginal meristematic cells of plants. Cell Proliferation. 35, pp. 49-68.
Quantification of raindrop kinetic energy for improved prediction of splash-dispersed pathogens
A - Papers appearing in refereed journals
Lovell, D. J., Parker, S. R., Van Peteghem, P., Webb, D. A. and Welham, S. J. 2002. Quantification of raindrop kinetic energy for improved prediction of splash-dispersed pathogens. Phytopathology. 92 (5), pp. 497-503. https://doi.org/10.1094/PHYTO.2002.92.5.497
Interactive forecasting on the Internet of light leaf spot (Pyrenopeziza brassicae ) risk for winter oilseed rape
C1 - Edited contributions to conferences/learned societies
Evans, N., Steed, J. M., Welham, S. J., Antoniw, J. F., Turner, J. A., Gladders, P. and Fitt, B. D. L. 2002. Interactive forecasting on the Internet of light leaf spot (Pyrenopeziza brassicae ) risk for winter oilseed rape.
ASREML estimates variance matrices from multivariate data using the animal model
C1 - Edited contributions to conferences/learned societies
Gilmour, A. R., Thompson, R., Cullis, B. R. and Welham, S. J. 2002. ASREML estimates variance matrices from multivariate data using the animal model. Proceedings 7th World Congress on Genetics Applied to Livestock Production, Montpellier, 19-23 August 2002 . pp. 28-05
Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors
A - Papers appearing in refereed journals
Papastamati, K., Van Den Bosch, F., Welham, S. J., Fitt, B. D. L., Evans, N. and Steed, J. M. 2002. Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors. Ecological Modelling. 148, pp. 169-189.
Changes in populations of the eyespot fungi Tapesia yallundae and T. acuformis under different fungicide regimes in successive crops of winter wheat, 1984-2000
A - Papers appearing in refereed journals
Bierman, S. M., Fitt, B. D. L., Van Den Bosch, F., Bateman, G. L., Jenkyn, J. F. and Welham, S. J. 2002. Changes in populations of the eyespot fungi Tapesia yallundae and T. acuformis under different fungicide regimes in successive crops of winter wheat, 1984-2000. Plant Pathology. 51 (2), pp. 191-201. https://doi.org/10.1046/j.1365-3059.2002.00673.x
Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ) in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors
C2 - Non-edited contributions to conferences
Papastamati, K., Van Den Bosch, F., Welham, S. J., Fitt, B. D. L., Evans, N. and Steed, J. M. 2001. Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus ) in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors. Abstracts 8th International Workshop on Plant Disease Epidemiology, Ouro Preto, Brazil, 6-11 May 2001 .
Modelling the progress of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus ) in relation to leaf wetness and temperature
A - Papers appearing in refereed journals
Papastamati, K., Welham, S. J., Fitt, B. D. L. and Gladders, P. 2001. Modelling the progress of light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape (Brassica napus ) in relation to leaf wetness and temperature. Plant Pathology. 50 (2), pp. 154-164. https://doi.org/10.1046/j.1365-3059.2001.00551.x
Modelling the dynamics of slug and nematode interaction incorporating response to environmental variables
C2 - Non-edited contributions to conferences
Choi, Y-H., Powers, S. J., Bohan, D. A., Semenov, M. A., Glen, D. M., Wiltshire, C. W. and Brain, P. 2001. Modelling the dynamics of slug and nematode interaction incorporating response to environmental variables. Abstracts IMA Conference on Mathematical Modelling and Statistical Analysis of Infectious Diseases, Cardiff, 11-13 September 2001 .
Modelling a slug population using differential equations
C2 - Non-edited contributions to conferences
Choi, Y-H., Powers, S. J., Bohan, D. A., Wiltshire, C. W., Glen, D. M. and Semenov, M. A. 2001. Modelling a slug population using differential equations. Abstracts Meeting of the OILB/IOBC Working Group on Integrated Control of Soil Pests, Subgroup on Integrated Control of Slugs and Snails, Lyons, 8-9 March 2001 .
Volatile compounds from Salix spp. varieties differing in susceptibility to three willow beetle species
A - Papers appearing in refereed journals
Peacock, L., Lewis, M. and Powers, S. J. 2001. Volatile compounds from Salix spp. varieties differing in susceptibility to three willow beetle species. Journal of Chemical Ecology. 27, pp. 1943-1951.
Differential equation models for biological data dependent on functions of environmental variables
C2 - Non-edited contributions to conferences
Powers, S. J., Brain, P. and Barlow, P. W. 2001. Differential equation models for biological data dependent on functions of environmental variables. Cambridge University Press (CUP).
Inter-laboratory comparison of sulphur and nitrogen analysis in plants and soils
A - Papers appearing in refereed journals
Crosland, A. R., Zhao, F-J. and McGrath, S. P. 2001. Inter-laboratory comparison of sulphur and nitrogen analysis in plants and soils. Communications in Soil Science and Plant Analysis. 32 (5/6), pp. 685-695. https://doi.org/10.1081/CSS-100103901
Modelling of rain splash trajectories and prediction of rain splash height
A - Papers appearing in refereed journals
Pietravalle, S., Van Den Bosch, F., Welham, S. J., Parker, S. R. and Lovell, D. J. 2001. Modelling of rain splash trajectories and prediction of rain splash height. Agricultural and Forest Meteorology. 109, pp. 171-185. https://doi.org/10.1016/S0168-1923(01)00267-2
Stem canker on winter oilseed rape during three growing seasons in England, France and Poland: an ACCESS database of results from the IMASCORE field experiments
J - Computer programs
Leech, P. K. and Welham, S. J. 2001. Stem canker on winter oilseed rape during three growing seasons in England, France and Poland: an ACCESS database of results from the IMASCORE field experiments.
Modelling the effects of temperature and wetness duration on development of light leaf spot on oilseed rape leaves inoculated with Pyrenopeziza brassicae conidia
A - Papers appearing in refereed journals
Gilles, T., Fitt, B. D. L., Welham, S. J., Evans, N., Steed, J. M. and Jeger, M. J. 2001. Modelling the effects of temperature and wetness duration on development of light leaf spot on oilseed rape leaves inoculated with Pyrenopeziza brassicae conidia. Plant Pathology. 50 (1), pp. 42-52. https://doi.org/10.1046/j.1365-3059.2001.00542.x
Relationships between phoma leaf spot and development of stem canker (Leptosphaeria maculans ) on winter oilseed rape (Brassica napus ) in southern England
A - Papers appearing in refereed journals
Sun, P., Fitt, B. D. L., Gladders, P. and Welham, S. J. 2000. Relationships between phoma leaf spot and development of stem canker (Leptosphaeria maculans ) on winter oilseed rape (Brassica napus ) in southern England. Annals of Applied Biology - AAB. 137 (2), pp. 113-125. https://doi.org/10.1111/j.1744-7348.2000.tb00043.x
A comparison of modelling methods for forecasting light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK
C1 - Edited contributions to conferences/learned societies
Welham, S. J., Papastamati, K., Fitt, B. D. L., Turner, J. A. and Gladders, P. 2000. A comparison of modelling methods for forecasting light leaf spot (Pyrenopeziza brassicae ) on winter oilseed rape in the UK. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2000 . pp. 801-808
Introducing an interactive Internet based forecasting system for light leaf spot of winter oilseed rape in the UK
G - Articles in popular magazines and other technical publications
Evans, N., Antoniw, J. F., Fitt, B. D. L., Gladders, P. and Welham, S. J. 2000. Introducing an interactive Internet based forecasting system for light leaf spot of winter oilseed rape in the UK. GCIRC Bulletin. 17, pp. 48-52.
Predicting leaf infection by Leptosphaeria maculans on winter oilseed rape
C1 - Edited contributions to conferences/learned societies
West, J. S., Evans, N., Leech, P. K., Fitt, B. D. L., Welham, S. J., Jedryczka, M. and Penaud, A. 2000. Predicting leaf infection by Leptosphaeria maculans on winter oilseed rape.
Long-term changes in the extractability and bioavailability of zinc and cadmium after sludge application
A - Papers appearing in refereed journals
McGrath, S. P., Zhao, F-J., Dunham, S. J., Crosland, A. R. and Coleman, K. 2000. Long-term changes in the extractability and bioavailability of zinc and cadmium after sludge application. Journal of Environmental Quality. 29 (3), pp. 875-883. https://doi.org/10.2134/jeq2000.00472425002900030025x
Comparison of the performance of nine commercial laboratories for testing nitrogen and sulphur in plants and soil: a second study (HGCA Project Report No. OS44)
D1 - Technical reports: non-confidential
Crosland, A. R., Vincent, J., Zhao, F-J. and McGrath, S. P. 2000. Comparison of the performance of nine commercial laboratories for testing nitrogen and sulphur in plants and soil: a second study (HGCA Project Report No. OS44). Home Grown Cereals Authority (HGCA) London.
Effects of stem canker (Leptosphaeria maculans ) and light leaf spot (Pyrenopeziza brassicae ) on yield of winter oilseed rape (Brassica napus ) in southern England
A - Papers appearing in refereed journals
Zhou, Y., Fitt, B. D. L., Welham, S. J., Evans, N. and Gladders, P. 2000. Effects of stem canker (Leptosphaeria maculans ) and light leaf spot (Pyrenopeziza brassicae ) on yield of winter oilseed rape (Brassica napus ) in southern England. Plant Pathology. 49, pp. 487-497.