小麦全蚀病是一种毁灭性病害,引起植株成簇或大片枯死,降低有效穗数、穗粒数及千粒重,造成严重的产量损失。1发病时期小麦苗期和成株期均可发病,将近成熟时病株症状最为明显,表现为点片麦芒和麦穗发白,幼苗期病菌主要侵染根的地下茎,使之变黑腐烂,地上表现为病苗基部叶片发黄,心叶内卷,分蘖减 Total eclipse of wheat is a devastating disease that causes the plants to cluster or wither out, reducing the number of effective spikes, the number of grains per spike and the weight of 1000-grain, resulting in serious yield loss. 1 wheat seedling stage and adult stage disease can occur at maturity, the disease symptoms are most evident at maturity, the performance of spotted wheat and wheat white, seedling germ mainly infects the roots of underground roots, making it black rot, Ground performance for the seedling leaves yellow base, the inner leaf volume, tiller reduction