高粱早衰原本是青霉颖枯病

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<正> 60年代以后,随着杂交高粱的大面积推广,高粱早衰在华北、东北等高粱产区普遍发生,使子粒秕瘦,产量下降,品质变坏。成为我国高粱的主要病害之一。我省每年发病面积达200万亩,减产10%以上。但病因不明,更无良法防治,成为制约高粱生产和育种的一大难题。 过去对该病了解甚少,现象上看
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