人工摘叶控制油菜菌核病效果初探

[目的]探明人工摘叶措施对油菜菌核病的防治效果。[方法]以不摘叶为对照,研究终花期摘叶1次和盛花期、终花期各摘叶1次及盛花期、终花期、终花期后7 d各摘叶1次对油菜菌核病的发生、油菜产量及经济效益的影响情况。[结果]结果表明,摘除病、老、黄叶具有明显的抑制病害扩展蔓延的作用 摘除病、老、黄叶对油菜菌核病的流行有明显的控制效果 摘叶较不摘叶处理的平均有效荚数、每荚粒数、千粒重均有不同程度的增加,增产效果均在10%以上。[结论]人工摘叶措施对控制油菜菌核病非常有效。

Primary Studies on the Effect of Controlling Sclerotinia sclerotiorum Disease by Artificial Leaf Picking

[Objective] The aim was to explore the effect of controlling Sclerotinia sclerotiorum disease by artificial leaf picking.[Method] Applying non-removable leaf as control,the effects of the end of flowering leaf picking,full flowering stage and the end of flowering leaf picking,and full flowering stage,the end of flowering and 7 d after the end of flowering leaf picking on the occurrence of Sclerotinia sclerotiorum disease,rapeseed yield and economic benefits were studied.[result] The results showed that removal of disease,old,yellow leaves could inhibit the spread of Sclerotinia sclerotiorum disease and control the prevalence of it.Leaf picking could improve the number of effective pods,grains per pod and 1 000-grain weight.Yield was higher 10% than control.[Conclusion] Applying artificial leaf picking on controlling Sclerotinia sclerotiorum disease was effective.