摘要
室内试验表明，雪腐格氏霉（Ｇｅｒｌａｃｈｉａｎｉｖａｌｉｓ）侵染小麦的适宜温度为１７～２０℃，２０℃以上有利于病菌在寄主组织中扩展。相对湿度在９３％以上２～３天，病害就会普遍发生，持续时间越长，发病越严重。在２０℃及饱和湿度下，光强８０００～１００００ｌｘ，每天光照６ｈ，最适于病菌侵入和扩展。
The experiment results showed that the optimum temperature for Gerlachia nivalis penetration is 17～20℃,and for disease development in tissure of the host is above 20℃.The infection occured above RH 93% in 2～3 days,and the longer the period sustained,the severer the disease occured.Under 20℃ and saturated humidity condition,when light intensity is 8000 10000lx,and lihgt controlled 6h every day,it is suitable for infect and extensive.Long time sustained light is not suitable for disease occured.
出处
《华北农学报》
CSCD
北大核心
1996年第4期48-51,共4页
Acta Agriculturae Boreali-Sinica
基金
国家"八五"攻关项目
