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稻粒黑粉病(Neovssiahorrida)是杂交水稻制种上最严重的病害,一般损失1～2成,最高达5成以上.为确保杂交稻制种产量和质量,笔者1989～1992年对其发生流行规律进行系统研究,主要结果如下:
Neovssia horrida is the most serious disease in hybrid rice seed production, with the loss of 1-2%, up to more than 50% .In order to ensure the yield and quality of hybrid rice seed production, the author of 1989 ~ 1992 to its occurrence The prevalence of systematic research, the main results are as follows: