Effects of beet western yellows virus on growth and yield of oilseed rape (Brassica napus)

Field trials were undertaken in Suffolk in commercial crops of autumn-sown oilseed rape cv. Capricorn during 1993/94, cv. Apex in 1994/95. Plots were artificially infected with beet western yellows virus (BWYV) using viruliferous Myzus persicae, giving 73 to 94% infection. Control plots had natural...

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Bibliographic Details
Published in:The Journal of agricultural science 1999-09, Vol.133 (2), p.131-139
Main Authors: JAY, C. N., ROSSALL, S., SMITH, H. G.
Format: Article
Language:English
Subjects:
Biological and medical sciences
CROPS AND SOILS
Fundamental and applied biological sciences. Psychology
Generalities. Techniques. Transmission, epidemiology, ecology. Antiviral substances, control
Phytopathology. Animal pests. Plant and forest protection
Plant viruses and viroids
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Summary:Field trials were undertaken in Suffolk in commercial crops of autumn-sown oilseed rape cv. Capricorn during 1993/94, cv. Apex in 1994/95. Plots were artificially infected with beet western yellows virus (BWYV) using viruliferous Myzus persicae, giving 73 to 94% infection. Control plots had natural infection ranging from 0 to 17·8%. Destructive plant samples were taken from each of the infected and control plots throughout the seasons for growth analyses, and final yields were measured on 44 m2 areas combine harvested from each plot. The seed yields of infected plots were 26 and 11% lower than control plots in 1994 and 1995 respectively (P
ISSN:0021-8596
1469-5146
DOI:10.1017/S0021859699006711