摘要
在陕西关中棉区，黄萎病对不同熟性棉花品种的严重危害期不一，早熟品种在７月下旬，中熟品种为８月下旬。严重危害期对结铃数及铃重影响最大，对衣分影响较小；品种间影响差异不显著。棉花品种抗病性鉴定应以各严重危害期的病情指数作区别指标。
Serious harmfulness of Verticillium dahliae to different maturing cotton varieties take place in differ-ent period. Early-maturing variety is affected in late July ,while middle-maturing cotton variety inlate August.Effect of serious harmfulness on boll-bearing number and boll weight is greater than lintpercentage , and there is not remarkable, Difference among varieties therefore ,the author suggeststhat the disease level at serious effecting period can be used as a parameter for screening disease-resis-tant cultivars.
出处
《西北农业学报》
CSCD
1995年第3期26-29,共4页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
黄萎病
棉花
品种
产量因子
Verticillium wilt
Cotton varieties
Yield factors
