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期 刊 ：植物保护学报 1999年

关键词：稻粒黑粉病；品种；播斯；气候；防治指标；杂交稻；

Keywords:kernel smut of rice, rice variety, date of planting, climate, control threshold,

摘 要 ：稻粒黑粉病已成为杂交稻制种田的重要病害，病粒率一般达１０％左右。因此各地对其研究逐渐增多，但对其主要发病因素特别是防治指标报道甚少。本文通过田间试验，大田调查，室内考种并结合气象资料分析，在这方面对其进行了探讨。

Abstract:The results show that the relationship between rice cultivars, date of planting, fertilizing, climate and incidence of kernel smut of rice was close while the density of plants was not. The regression equation of yield loss and the number of diseased grai

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