摘要
室内模拟研究结果表明，霉腐格氏霉（Ｃｅｒｉａｃｈｉａｎｉｖａｌｉｓ）侵染小麦的适宜温度为１７℃，２０℃以上有利于病菌在寄生组织中扩展。在相对温度９３％以上的条件下，２～３ｄ病害就会普遍发生，持续时间越长，发病越严重。光强８０００～１００００１ｘ每天光照６ｈ最适于病菌侵入和扩展，长时间光照不利于病害发生。
The indoor simulated tests results showed that the optimum temperature was17℃ for Gerlachia niualis penetration and above 20℃C for disease development in its hosttissuse.When infection occured above RH 93%the disease would be widespread within 2or 3 days,the longer the time of RH 93%～100%lasted,the severer the disease would be.The best lightcycle for penetration and development of the pathogen in wheat plant was6h.light and l8h.darkness per day with 8 000～10 000lx,long time of lasting light was notsuitabe for disease occurrence.
出处
《河南农业大学学报》
CAS
CSCD
1996年第3期293-296,共4页
Journal of Henan Agricultural University
关键词
雪霉叶枯病
发病条件
小麦
gerlachia leaf blight
infection condition
wheat
