Latent roots and vectors of a symmetric matrix

Sparks, D. N. and Todd, A. D. 1973. Latent roots and vectors of a symmetric matrix. Journal of the Royal Statistical Society, Series C (Applied Statistics). 22 (2), pp. 260-265. https://doi.org/10.2307/2346932

Related outputs

Use of QPCR techniques to predict light leaf spot resistance of oilseed rape varieties

C2 - Non-edited contributions to conferences

Booth, E. J., West, J. S., Fitt, B. D. L., Rodgers, S. L., White, Robin P., Todd, A. D., Latunde-Dada, A. O., Thomas, J. E. and Gladders, P. 2010. Use of QPCR techniques to predict light leaf spot resistance of oilseed rape varieties. Proceedings Dundee Conference on Crop Protection in Northern Britain, Dundee, 23-24 February 2010 . pp. 87-90

Long-term Fertilizer Experiment Network in China: crop yields and soil nutrient trends

A - Papers appearing in refereed journals

Zhao, B-Q., Li, X-Y., Li, X-P., Shi, X-J., Huang, S-M., Wang, B-R., Zhu, P., Yang, X-Y., Liu, H., Chen, Y., Poulton, P. R., Powlson, D. S., Todd, A. D. and Payne, R. W. 2010. Long-term Fertilizer Experiment Network in China: crop yields and soil nutrient trends. Agronomy Journal. 102, pp. 216-230. https://doi.org/10.2134/agronj2009.0182

Components of resistance to diseases in winter oilseed rape cultivars: CORDISOR (HGCA Project Report No. 446)

D1 - Technical reports: non-confidential

West, J. S., Fitt, B. D. L., Rogers, S. L., White, Robin P., Todd, A. D., Latunde-Dada, A. O., Gladders, P., Thomas, J., Booth, E., Jennaway, R., Clarke, M., Padbury, N., Bowman, J., Nightingale, M., Werner, P. and Jellis, G. 2008. Components of resistance to diseases in winter oilseed rape cultivars: CORDISOR (HGCA Project Report No. 446). Home Grown Cereals Authority (HGCA) London.

Quantifying and comparing bumblebee nest densities in gardens and countryside habitats

A - Papers appearing in refereed journals

Osborne, J. L., Martin, A. P., Shortall, C. R., Todd, A. D., Goulson, D., Knight, M. E., Hale, R. J. and Sanderson, R. A. 2008. Quantifying and comparing bumblebee nest densities in gardens and countryside habitats. Journal of Applied Ecology. 45 (3), pp. 784-792. https://doi.org/10.1111/j.1365-2664.2007.01359.x

The effect [of] host plant characters on parasitism of inflorescence pests of oilseed rape

C2 - Non-edited contributions to conferences

Ferguson, A. W., Frearson, D. J. T., Mason, N. S., Todd, A. D., Clark, S. J. and Williams, I. H. 2007. The effect [of] host plant characters on parasitism of inflorescence pests of oilseed rape. Abstracts Royal Entomological Society National Meeting (Ento 07), Edinburgh, 16-18 July 2007 . pp. 18

Effects of temperature and rainfall on date of release of ascospores of Leptosphaeria maculans (phoma stem canker) from winter oilseed rape (Brassica napus) debris in the UK

A - Papers appearing in refereed journals

Huang, Y-J., Liu, Z., West, J. S., Todd, A. D., Hall, A. M. and Fitt, B. D. L. 2007. Effects of temperature and rainfall on date of release of ascospores of Leptosphaeria maculans (phoma stem canker) from winter oilseed rape (Brassica napus) debris in the UK. Annals of Applied Biology - AAB. 151 (1), pp. 99-111. https://doi.org/10.1111/j.1744-7348.2007.00157.x

The Representative Soil Sampling Scheme of England and Wales: a statistical analysis of topsoil nutrient status and pH between 1971 and 2001

A - Papers appearing in refereed journals

Oliver, M. A., Archer, J. R., Baxter, S. J., Todd, A. D. and Skinner, R. J. 2006. The Representative Soil Sampling Scheme of England and Wales: a statistical analysis of topsoil nutrient status and pH between 1971 and 2001. Soil Use and Management. 22 (4), pp. 372-382. https://doi.org/10.1111/j.1475-2743.2006.00051.x

Visual and PCR assessment of light leaf spot (Pyrenopeziza brassicae) on winter oilseed rape (Brassica napus) cultivars

A - Papers appearing in refereed journals

Karolewski, Z., Fitt, B. D. L., Latunde-Dada, A. O., Foster, S. J., Todd, A. D., Downes, K. and Evans, N. 2006. Visual and PCR assessment of light leaf spot (Pyrenopeziza brassicae) on winter oilseed rape (Brassica napus) cultivars. Plant Pathology. 55 (3), pp. 387-400. https://doi.org/10.1111/j.1365-3059.2006.01383.x

The recovery over several seasons of 15N-labelled fertilizer applied to Miscanthus x giganteus ranging from 1 to 3 years old

A - Papers appearing in refereed journals

Christian, D. G., Poulton, P. R., Riche, A. B., Yates, N. E. and Todd, A. D. 2006. The recovery over several seasons of 15N-labelled fertilizer applied to Miscanthus x giganteus ranging from 1 to 3 years old. Biomass & Bioenergy. 30, pp. 125-133. https://doi.org/10.1016/j.biombioe.2005.11.002

Enhanced biological cycling of phosphorus increases its availability to crops in low-input sub-Saharan farming systems

A - Papers appearing in refereed journals

Ayaga, G., Todd, A. D. and Brookes, P. C. 2006. Enhanced biological cycling of phosphorus increases its availability to crops in low-input sub-Saharan farming systems. Soil Biology and Biochemistry. 38, pp. 81-90. https://doi.org/10.1016/j.soilbio.2005.04.019

Comparative epidemiology of Pyrenopeziza brassicae (light leaf spot) ascospores and conidia from Polish and UK populations

A - Papers appearing in refereed journals

Karolewski, Z., Evans, N., Fitt, B. D. L., Baierl, A., Todd, A. D. and Foster, S. J. 2004. Comparative epidemiology of Pyrenopeziza brassicae (light leaf spot) ascospores and conidia from Polish and UK populations. Plant Pathology. 53 (1), pp. 29-37. https://doi.org/10.1046/j.1365-3059.2003.00952.x

Variation in the effects of take-all disease on grain yield and quality of winter cereals in field experiments

A - Papers appearing in refereed journals

Gutteridge, R. J., Bateman, G. L. and Todd, A. D. 2003. Variation in the effects of take-all disease on grain yield and quality of winter cereals in field experiments. Pest Management Science. 59 (2), pp. 215-224. https://doi.org/10.1002/ps.574

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.

The effect of nitrogen supply and virus yellows infection on the growth, yield and processing quality of sugarbeet (Beta vulgaris)

A - Papers appearing in refereed journals

Jaggard, K. W., Allison, M. F., Clark, C. J. A., Todd, A. D. and Smith, H. G. 2002. The effect of nitrogen supply and virus yellows infection on the growth, yield and processing quality of sugarbeet (Beta vulgaris). The Journal of Agricultural Science. 139, pp. 129-138. https://doi.org/10.1017/S002185960200254X

Some problems in the design and analysis of field experiments subject to interplot interference

A - Papers appearing in refereed journals

Dyke, G. V., Todd, A. D. and Jenkyn, J. F. 2002. Some problems in the design and analysis of field experiments subject to interplot interference. The Journal of Agricultural Science. 139 (3), pp. 295-305. https://doi.org/10.1017/S0021859602002630

Effects of temperature and incubation time on germination of ascospores of Leptosphaeria maculans and Leptosphaeria biglobosa in vitro

C1 - Edited contributions to conferences/learned societies

Huang, Y-J., Fitt, B. D. L., Toscano-Underwood, C., Todd, A. D., West, J. S., Hall, A. and Jedryczka, M. 2002. Effects of temperature and incubation time on germination of ascospores of Leptosphaeria maculans and Leptosphaeria biglobosa in vitro.

Factors affecting the pathogenicity of Verticillium dahliae to spring linseed

C1 - Edited contributions to conferences/learned societies

Gkilpathi, D., Fitt, B. D. L., Ward, E. and Todd, A. D. 2002. Factors affecting the pathogenicity of Verticillium dahliae to spring linseed.

Sporulation of Pyrenopeziza brassicae (light leaf spot) on oilseed rape (Brassica napus ) leaves inoculated with ascospores or conidia at different temperatures and wetness durations

A - Papers appearing in refereed journals

Karolewski, Z., Evans, N., Fitt, B. D. L., Todd, A. D. and Baierl, A. 2002. Sporulation of Pyrenopeziza brassicae (light leaf spot) on oilseed rape (Brassica napus ) leaves inoculated with ascospores or conidia at different temperatures and wetness durations. Plant Pathology. 51 (5), pp. 654-665. https://doi.org/10.1046/j.1365-3059.2002.00746.x

Relationship between brown foot rot and DNA of Microdochium nivale , determined by quantitative PCR, in stem bases of winter wheat

A - Papers appearing in refereed journals

Turner, A. S., Nicholson, P., Edwards, S. G., Bateman, G. L., Morgan, L. W., Todd, A. D., Parry, D. W., Marshall, J. and Nuttall, M. 2002. Relationship between brown foot rot and DNA of Microdochium nivale , determined by quantitative PCR, in stem bases of winter wheat. Plant Pathology. 51 (4), pp. 464-471. https://doi.org/10.1046/j.1365-3059.2002.00724.x

Effects of temperature on germination and hyphal growth from ascospores of A-group and B-group Leptosphaeria maculans (phoma stem canker of oilseed rape)

A - Papers appearing in refereed journals

Huang, Y-J., Toscano-Underwood, C., Fitt, B. D. L., Todd, A. D., West, J. S., Koopmann, B. and Balesdent, M-H. 2001. Effects of temperature on germination and hyphal growth from ascospores of A-group and B-group Leptosphaeria maculans (phoma stem canker of oilseed rape). Annals of Applied Biology - AAB. 139 (2), pp. 193-207. https://doi.org/10.1111/j.1744-7348.2001.tb00396.x

Evaluation of diagnostic and quantitative PCR for the identification and severity assessment of eyespot and sharp eyespot in winter wheat

A - Papers appearing in refereed journals

Turner, A. S., Nicholson, P., Edwards, S. G., Bateman, G. L., Morgan, L. W., Todd, A. D., Parry, D. W., Marshall, J. and Nuttall, M. 2001. Evaluation of diagnostic and quantitative PCR for the identification and severity assessment of eyespot and sharp eyespot in winter wheat. Plant Pathology. 50 (4), pp. 463-469. https://doi.org/10.1046/j.1365-3059.2001.00592.x

Comparison of two field-scale approaches for the study of effects of insecticides on polyphagous predators in cereals

A - Papers appearing in refereed journals

Kennedy, P. J., Conrad, K. F., Perry, J. N., Powell, D., Aegerter, J., Todd, A. D., Walters, K. F. A. and Powell, W. 2001. Comparison of two field-scale approaches for the study of effects of insecticides on polyphagous predators in cereals. Applied Soil Ecology. 17 (3), pp. 253-266. https://doi.org/10.1016/S0929-1393(01)00142-1

The ATP concentration in the soil microbial biomass

A - Papers appearing in refereed journals

Contin, M., Todd, A. D. and Brookes, P. C. 2001. The ATP concentration in the soil microbial biomass. Soil Biology and Biochemistry. 33 (4-5), pp. 701-704. https://doi.org/10.1016/S0038-0717(00)00204-2

Effects of incorporating different amounts of straw on growth, diseases and yield of consecutive crops of winter wheat grown on contrasting soil types

A - Papers appearing in refereed journals

Jenkyn, J. F., Christian, D. G., Bacon, E. T. G., Gutteridge, R. J. and Todd, A. D. 2001. Effects of incorporating different amounts of straw on growth, diseases and yield of consecutive crops of winter wheat grown on contrasting soil types. The Journal of Agricultural Science. 136, pp. 1-14. https://doi.org/10.1017/S0021859600008558

Development of phoma lesions on oilseed rape leaves inoculated with ascospores of A-group and B-group Leptosphaeria maculans (stem canker) at different temperatures and wetness durations

A - Papers appearing in refereed journals

Toscano-Underwood, C., West, J. S., Fitt, B. D. L., Todd, A. D. and Jedryczka, M. 2001. Development of phoma lesions on oilseed rape leaves inoculated with ascospores of A-group and B-group Leptosphaeria maculans (stem canker) at different temperatures and wetness durations. Plant Pathology. 50 (1), pp. 28-41. https://doi.org/10.1046/j.1365-3059.2001.00526.x

The causes of over-winter plant losses of autumn-sown white lupins (Lupinus albus ) in different regions of the UK over three seasons

A - Papers appearing in refereed journals

Shield, I. F., Scott, T., Stevenson, H. J., Leach, J. E. and Todd, A. D. 2000. The causes of over-winter plant losses of autumn-sown white lupins (Lupinus albus ) in different regions of the UK over three seasons. The Journal of Agricultural Science. 135, pp. 173-183. https://doi.org/10.1017/S0021859699008047

The effects of isothiocyanates on the growth of the entomopathogenic fungus Metarhizium anisopliae and its infection of the mustard beetle

A - Papers appearing in refereed journals

Inyang, E. N., Butt, T. M., Doughty, K. J., Todd, A. D. and Archer, S. 1999. The effects of isothiocyanates on the growth of the entomopathogenic fungus Metarhizium anisopliae and its infection of the mustard beetle. Mycological Research. 103 (8), pp. 974-980. https://doi.org/10.1017/S0953756298007989

Ascospores as primary inoculum for epidemics of white leaf spot (Mycosphaerella capsellae ) in winter oilseed rape in the UK

A - Papers appearing in refereed journals

Inman, A. J., Fitt, B. D. L., Todd, A. D. and Evans, R. L. 1999. Ascospores as primary inoculum for epidemics of white leaf spot (Mycosphaerella capsellae ) in winter oilseed rape in the UK. Plant Pathology. 48 (3), pp. 308-319.

Twenty-five years of monitoring pH and nutrient status of soils in England and Wales

A - Papers appearing in refereed journals

Skinner, R. J. and Todd, A. D. 1998. Twenty-five years of monitoring pH and nutrient status of soils in England and Wales. Soil Use and Management. 14 (3), pp. 162-169.

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

A - Papers appearing in refereed journals

Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1998. 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. The Journal of Agricultural Science. 130, pp. 399-410. https://doi.org/10.1017/S0021859698005450

Phosphorus losses from arable land in England

A - Papers appearing in refereed journals

Catt, J. A., Howse, K. R., Farina, R., Brockie, D., Todd, A. D., Chambers, B. J., Hodgkinson, R., Harris, G. L. and Quinton, J. N. 1998. Phosphorus losses from arable land in England. Soil Use and Management. 14 (supp 4), pp. 168-174. https://doi.org/10.1111/j.1475-2743.1998.tb00636.x

Integration of nitrate cover crops into sugarbeet (Beta vulgaris ) rotations. II. Effect of cover crops on growth, yield and N requirement of sugarbeet

A - Papers appearing in refereed journals

Allison, M. F., Armstrong, M. J., Jaggard, K. W. and Todd, A. D. 1998. Integration of nitrate cover crops into sugarbeet (Beta vulgaris ) rotations. II. Effect of cover crops on growth, yield and N requirement of sugarbeet. The Journal of Agricultural Science. 130, pp. 61-67. https://doi.org/10.1017/S002185969700511X

Integration of nitrate cover crops into sugarbeet (Beta vulgaris) rotations. I. Management and effectiveness of nitrate cover crops

A - Papers appearing in refereed journals

Allison, M. F., Armstrong, M. J., Jaggard, K. W. and Todd, A. D. 1998. Integration of nitrate cover crops into sugarbeet (Beta vulgaris) rotations. I. Management and effectiveness of nitrate cover crops. The Journal of Agricultural Science. 130, pp. 53-60. https://doi.org/10.1017/S0021859697005108

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.

Topping level, sugar yield and root quality of beet from a range of soils: a study for the National Farmers' Union 1996/97

D1 - Technical reports: non-confidential

Jaggard, K. W., Clark, C. J. A. and Todd, A. D. 1997. Topping level, sugar yield and root quality of beet from a range of soils: a study for the National Farmers' Union 1996/97. Confidential Report for the NFU.

Nutrient availability and yield variation in beet rotations: implications for precision farming

C1 - Edited contributions to conferences/learned societies

Jaggard, K. W., Allison, M. F. and Todd, A. D. 1997. Nutrient availability and yield variation in beet rotations: implications for precision farming. Proceedings 60th Congress of the Institut International de Recherches Betteravieres, Cambridge, July 1997 . pp. 303-306

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.

Structure of a Genstat userfile

G - Articles in popular magazines and other technical publications

Todd, A. D. 1997. Structure of a Genstat userfile. Genstat newsletter. 33, pp. 42-45.

The potassium, sodium, magnesium, calcium and phosphate nutrition of sugarbeet (Beta vulgaris ) grown on soils containing incorporated straw

A - Papers appearing in refereed journals

Allison, M. F., Chapman, J. L., Garat, C. E. and Todd, A. D. 1997. The potassium, sodium, magnesium, calcium and phosphate nutrition of sugarbeet (Beta vulgaris ) grown on soils containing incorporated straw. Journal of the Science of Food and Agriculture. 74 (2), pp. 216-220. https://doi.org/10.1002/(SICI)1097-0010(199706)74:2<216::AID-JSFA791>3.0.CO;2-R

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.

Factors affecting cover crop dry matter production in beet rotations

C1 - Edited contributions to conferences/learned societies

Allison, M. F., Garat, C. E., Armstrong, M. J. and Todd, A. D. 1996. Factors affecting cover crop dry matter production in beet rotations. Rotations and Cropping Systems. Aspects of Applied Biology 47 . pp. 367-370

An analysis of the agronomic, economic and environmental effects of applying N fertilizer to sugarbeet (Beta vulgaris )

A - Papers appearing in refereed journals

Allison, M. F., Armstrong, M. J., Jaggard, K. W., Todd, A. D. and Milford, G. F. J. 1996. An analysis of the agronomic, economic and environmental effects of applying N fertilizer to sugarbeet (Beta vulgaris ). The Journal of Agricultural Science. 127 (4), pp. 475-486. https://doi.org/10.1017/S0021859600078709

The effects on soil fertility of repeated applications of pesticides over 20 years

C2 - Non-edited contributions to conferences

Bromilow, R. H., Evans, A. A., Nicholls, P. H., Todd, A. D. and Briggs, G. G. 1996. The effects on soil fertility of repeated applications of pesticides over 20 years. Pesticides in Soil and the Environment. Proceedings COST 66 Workshop, Stratford-upon-Avon, 13-15 May 1996 . pp. 153-154

The effects on soil fertility of repeated applications of pesticides over 20 years

A - Papers appearing in refereed journals

Bromilow, R. H., Evans, A. A., Nicholls, P. H., Todd, A. D. and Briggs, G. G. 1996. The effects on soil fertility of repeated applications of pesticides over 20 years. Pesticide Science. 48, pp. 63-72.

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

A - Papers appearing in refereed journals

Jenkyn, J. F., Todd, A. D., Bainbridge, A. and Dyke, G. V. 1996. 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. The Journal of Agricultural Science. 126 (3), pp. 259-275. https://doi.org/10.1017/S0021859600074815

Genstat 5 for Windows reference manual supplement

D1 - Technical reports: non-confidential

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. 1995. Genstat 5 for Windows reference manual supplement. Oxford Numerical Algorithms Group.

Genstat for Windows. Release 3.2 manual supplement

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., Welham, S. J. and White, Robin P. 1995. Genstat for Windows. Release 3.2 manual supplement. Numerical Algorithms Group, Oxford.

Genstat for Windows reference summary

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., Welham, S. J. and White, Robin P. 1995. Genstat for Windows reference summary. Numerical Algorithms Group, Oxford.

Genstat 5 release 3.2 reference summary

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., Welham, S. J. and White, Robin P. 1995. Genstat 5 release 3.2 reference summary. Oxford Numerical Algorithms Group.

Genstat 5 release 3.2 manual supplement

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., Welham, S. J. and White, Robin P. 1995. Genstat 5 release 3.2 manual supplement. Numerical Algorithms Group, Oxford.

Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91

A - Papers appearing in refereed journals

Prew, R. D., Ashby, J. E., Bacon, E. T. G., Christian, D. G., Gutteridge, R. J., Jenkyn, J. F., Powell, W. and Todd, A. D. 1995. Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91. The Journal of Agricultural Science. 124 (2), pp. 173-194. https://doi.org/10.1017/S0021859600072853

Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley

A - Papers appearing in refereed journals

Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1995. Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley. The Journal of Agricultural Science. 124 (2), pp. 195-204. https://doi.org/10.1017/S0021859600072865

The effect of inspection on inter-alarm time intervals. Part 2. The inspection paradox and the distribution of inter-alarm times. Confidential report for Modern Security Systems

D1 - Technical reports: non-confidential

Kenward, M. G., Moore, K. L., Todd, A. D. and Barnett, V. 1994. The effect of inspection on inter-alarm time intervals. Part 2. The inspection paradox and the distribution of inter-alarm times. Confidential report for Modern Security Systems.

The effect of inspection on inter-alarm time intervals. Part 1. The distribution of alarm-to-inspection and inspection-to-alarm intervals. Confidential report for Modern Security Systems

D1 - Technical reports: non-confidential

Kenward, M. G., Moore, K. L., Todd, A. D. and Barnett, V. 1994. The effect of inspection on inter-alarm time intervals. Part 1. The distribution of alarm-to-inspection and inspection-to-alarm intervals. Confidential report for Modern Security Systems.

Procedure CHISQUARE

D1 - Technical reports: non-confidential

Todd, A. D. and Leech, P. K. 1993. Procedure CHISQUARE. Numerical Algorithms Group, Oxford.

Genstat 5 Release 3 reference manual

D1 - Technical reports: non-confidential

Payne, R. W., Lane, P. W., Digby, P. G. N., Harding, S. A., Leech, P. K., Morgan, G. W., Todd, A. D., Thompson, R., Tunnicliffe Wilson, G., Welham, S. J. and White, Robin P. 1993. Genstat 5 Release 3 reference manual. Clarendon Press, Oxford.

Genstat 5 Release 3 reference summary

D1 - Technical reports: non-confidential

Payne, R. W., Lane, P. W., Digby, P. G. N., Harding, S. A., Leech, P. K., Morgan, G. W., Todd, A. D., Thompson, R., Tunnicliffe Wilson, G., Welham, S. J. and White, Robin P. 1993. Genstat 5 Release 3 reference summary. Numerical Algorithms Group, Oxford.

Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat

A - Papers appearing in refereed journals

Milford, G. F. J., Penny, A., Prew, R. D., Darby, R. J. and Todd, A. D. 1993. Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat. The Journal of Agricultural Science. 121 (1), pp. 1-12. https://doi.org/10.1017/S0021859600076735

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

A - Papers appearing in refereed journals

Jenkyn, J. F., Carter, N., Darby, R. J., Gutteridge, R. J., Mullen, L. A., Plumb, R. T., Ross, G. J. S., Todd, A. D., Widdowson, F. V. and Wood, D. W. 1992. 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. The Journal of Agricultural Science. 119 (3), pp. 303-333. https://doi.org/10.1017/S0021859600012168

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

A - Papers appearing in refereed journals

Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1992. 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. The Journal of Agricultural Science. 119 (1), pp. 19-25. https://doi.org/10.1017/S0021859600071501

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

A - Papers appearing in refereed journals

Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1991. 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. The Journal of Agricultural Science. 117 (3), pp. 287-297. https://doi.org/10.1017/S0021859600067010

Effects of irrigation, N fertilizer, cutting frequency and pesticides on ryegrass, ryegrass–clover mixtures, clover and lucerne grown on heavy and light land

A - Papers appearing in refereed journals

McEwen, J., Day, W., Henderson, I. F., Johnston, A. E., Plumb, R. T., Poulton, P. R., Spaull, A. M., Stribley, D. P., Todd, A. D. and Yeoman, D. P. 1989. Effects of irrigation, N fertilizer, cutting frequency and pesticides on ryegrass, ryegrass–clover mixtures, clover and lucerne grown on heavy and light land. The Journal of Agricultural Science. 112 (2), pp. 227-247. https://doi.org/10.1017/S0021859600085130

Genstat 5 release 2 reference summary . 97pp.

E - Books edited/written by staff member, alone/with others

Payne, R. W., Lane, P. W., Ainsley, A. E., Bicknell, K. E., Digby, P. G. N., Harding, S. A., Leech, P. K., Simpson, H. R., Todd, A. D., Welham, S. J., White, Robin P., Gower, J. C., Tunnicliffe Wilson, G. and Verrier, P. J. 1989. Genstat 5 release 2 reference summary . 97pp.

A data organisation system for field experiments.

G - Articles in popular magazines and other technical publications

Ainsley, A. E. and Todd, A. D. 1989. A data organisation system for field experiments. Genstat newsletter. 23, pp. 29-37.

Procedure APLOT.

D1 - Technical reports: non-confidential

Todd, A. D. 1989. Procedure APLOT. Numerical Algorithms Group, Oxford.

Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley.

A - Papers appearing in refereed journals

Jenkyn, J. F., Dyke, G. V., Stedman, O. J. and Todd, A. D. 1989. Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley. The Journal of Agricultural Science. 112 (1), pp. 97-114. https://doi.org/10.1017/S002185960008415X

Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley.

A - Papers appearing in refereed journals

Jenkyn, J. F., Stedman, O. J., Dyke, G. V. and Todd, A. D. 1989. Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley. The Journal of Agricultural Science. 112 (1), pp. 85-95. https://doi.org/10.1017/S0021859600084148

Estimation of radiation interception by winter wheat from measurements of leaf area

A - Papers appearing in refereed journals

Thorne, G. N., Pearman, I., Day, W. and Todd, A. D. 1988. Estimation of radiation interception by winter wheat from measurements of leaf area. The Journal of Agricultural Science. 110 (1), pp. 101-108. https://doi.org/10.1017/S0021859600079740

Contrast between sandy and clay soils in the effects of various factors on the growth, nitrogen uptake and yield of winter wheat in three years.

A - Papers appearing in refereed journals

Thorne, G. N., Welbank, P. J., Widdowson, F. V., Penny, A. and Todd, A. D. 1988. Contrast between sandy and clay soils in the effects of various factors on the growth, nitrogen uptake and yield of winter wheat in three years. The Journal of Agricultural Science. 110 (1), pp. 119-140. https://doi.org/10.1017/S0021859600079764

Spore dispersal and plant disease gradients; a comparison between two empirical models.

A - Papers appearing in refereed journals

Fitt, B. D. L., Gregory, P. H., Todd, A. D., McCartney, H. A. and Macdonald, O. C. 1987. Spore dispersal and plant disease gradients; a comparison between two empirical models. Journal of Phytopathology. 118 (3), pp. 227-242. https://doi.org/10.1111/j.1439-0434.1987.tb00452.x

Genstat 5 reference manual.

E - Books edited/written by staff member, alone/with others

Payne, R. W., Lane, P. W., Ainsley, A. E., Bicknell, K. E., Digby, P. G. N., Harding, S. A., Leech, P. K., Simpson, H. R., Todd, A. D., Verrier, P. J., White, Robin P., Gower, J. C., Tunnicliffe Wilson, G. and Paterson, L. J. 1987. Genstat 5 reference manual.

Some factors affecting the growth and yield of winter wheat grown as a third cereal with much or negligible take-all

A - Papers appearing in refereed journals

Prew, R. D., Beane, J., Carter, N., Church, B. M., Dewar, A. M., Lacey, J., Penny, A., Plumb, R. T., Thorne, G. N. and Todd, A. D. 1986. Some factors affecting the growth and yield of winter wheat grown as a third cereal with much or negligible take-all. The Journal of Agricultural Science. 107 (3), pp. 639-671. https://doi.org/10.1017/S0021859600069811

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.

A - Papers appearing in refereed journals

Widdowson, F. V., Darby, R. J., Dewar, A. M., Jenkyn, J. F., Kerry, B. R., Lawlor, D. W., Plumb, R. T., Ross, G. J. S., Scott, G. C., Todd, A. D. and Wood, D. W. 1986. 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. The Journal of Agricultural Science. 106, pp. 551-574. https://doi.org/10.1017/S0021859600063437

Some factors limiting the growth and yield of winter-wheat and their variation in 2 seasons

A - Papers appearing in refereed journals

Prew, R. D., Church, B. M., Dewar, A. M., Lacey, J., Magan, N., Penny, A., Plumb, R. T., Thorne, G. N., Todd, A. D. and Williams, T. D. 1985. Some factors limiting the growth and yield of winter-wheat and their variation in 2 seasons. The Journal of Agricultural Science. 104 (1), pp. 135-162. https://doi.org/10.1017/s0021859600043070

Rothamsted Multidisciplinary Agronomy

A - Papers appearing in refereed journals

Thorne, G. N., Prew, R. D., williams, Lacey, J., Plumb, R. T., Hirsch, P. R., Church, B. M., Todd, A. D. and Carter, N. 1984. Rothamsted Multidisciplinary Agronomy. Rothamsted Experimental Station Report. 1984 (part 1), pp. 23-38.

Rothamsted Multidisciplinary Agronomy

A - Papers appearing in refereed journals

Thorne, G. N., Dewar, A. M., Prew, R. D., williams, Lacey, J., Plumb, R. T., Hirsch, P. R., Church, B. M. and Todd, A. D. 1983. Rothamsted Multidisciplinary Agronomy. Rothamsted Experimental Station Report. 1983 (part 1), pp. 21-36.

The Broadbalk wheat experiment 1968-78 : yields and plant nutrients in crops grown continuously and in rotation

A - Papers appearing in refereed journals

Dyke, G. V., George, B. J., Johnston, A. E., Poulton, P. R. and Todd, A. D. 1983. The Broadbalk wheat experiment 1968-78 : yields and plant nutrients in crops grown continuously and in rotation. Rothamsted Experimental Station Report. (2), pp. 5-44. https://doi.org/10.23637/ERADOC-1-34179

Effects of fungicide movement between plots in field experiments

A - Papers appearing in refereed journals

Jenkyn, J. F., Dyke, G. V. and Todd, A. D. 1983. Effects of fungicide movement between plots in field experiments. Plant Pathology. 32 (3), pp. 311-324. https://doi.org/10.1111/j.1365-3059.1983.tb02839.x

Effects of eight factors on the growth and nutrient-uptake of winter-wheat and on the incidence of pests and diseases

A - Papers appearing in refereed journals

Prew, R. D., Church, B. M., Dewar, A. M., Lacey, J., Penny, A., Plumb, R. T., Thorne, G. N., Todd, A. D. and Williams, T. D. 1983. Effects of eight factors on the growth and nutrient-uptake of winter-wheat and on the incidence of pests and diseases. The Journal of Agricultural Science. 100 (2), pp. 363-382. https://doi.org/10.1017/s0021859600033529

Use of soil survey of England and Wales data bank (1950-1973) to summarize and establish relations between soil analyses, observed gley status and lithological contribution

A - Papers appearing in refereed journals

Bascomb, C. L. and Todd, A. D. 1979. Use of soil survey of England and Wales data bank (1950-1973) to summarize and establish relations between soil analyses, observed gley status and lithological contribution. The Journal of Agricultural Science. 92 (2), pp. 383-391. https://doi.org/10.1017/s0021859600062912

Investigation into inter-plot interactions, in experiments with mildew on barley, using balanced designs

A - Papers appearing in refereed journals

Jenkyn, J. F., Bainbridge, A., Dyke, G. V. and Todd, A. D. 1979. Investigation into inter-plot interactions, in experiments with mildew on barley, using balanced designs. Annals of Applied Biology - AAB. 92 (1), pp. 11-28. https://doi.org/10.1111/j.1744-7348.1979.tb02954.x

Comparison of fortran subroutines for calculating latent roots and vectors

A - Papers appearing in refereed journals

Sparks, D. N. and Todd, A. D. 1973. Comparison of fortran subroutines for calculating latent roots and vectors. Journal of the Royal Statistical Society, Series C (Applied Statistics). 22 (2), pp. 220-225.