摘要
据对有关资料分析,引起河南省1990年小麦条锈病流行的主要原因为:(1)外来菌量大,传入河南省集中;(2)条锈病菌生理小种变化,种植大面积的感病品种;(3)有利的气候条件;(4)播期早,播量大,氮肥施用多,磷、钾肥施用少,削弱了小麦的抗条锈性;(5)高效杀菌剂奇缺,防治不及时.
The Prevalence of wheat yellow rust in Henan province in 1990 is caused by the large quantity of inoculum of source from the northwest regions in Hubei Province and Southeast regions in Gansu Province, the new physiological race emerge of Puccinia striiform amd susceptible cultivar, the fourable climate and cultivating conditions, the shortage of Fungicide and untimely control.
出处
《河南职业技术师范学院学报》
1991年第4期18-20,29,共4页
Journal of Henan Vocation-Technical Teachers College
关键词
小麦
条锈病
流行
河南
wheat yellow rust,provailence,physiological race,susceptible cultivar
