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稻曲病Ustilaginoidea virens(Cooke)TakahashiJ是恩施州一季中稻的主要穗期病害,常年发生面积5·33万hm2左右。病菌以子囊孢子和分生孢子侵染花器及幼颖;水稻抽穗扬花期适逢降雨,感病严重。病穗上的孢子座成熟后呈墨绿色,龟裂后飞溅,严重影响稻谷品质和产量。为测定该病对产量
Ustilaginoidea virens (Cooke) Takahashi J is a major ear disease in the middle season rice in Enshi Prefecture, with an annual area of 53,300 hm 2. Pathogenic bacteria ascospores and conidia invade flowers and young Ying; heading and flowering rice coincides with the rain, a serious illness. Disease spikes on the spore seat was dark green after the splash after cracking, seriously affecting the quality and yield of rice. To determine the disease on the yield