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谷粒黑粉病以杂交水稻和杂交稻制种田发病重。据调查,梁集公社农科站三队14.5亩南优二号制种田,谷粒最高发病率达39.3％。此外,“五百粒”、IR24、IR26、南京11号等常规中稻也有发病的。谷粒黑粉病是由一种担子菌侵染所致。据县农科所和梁集公社农科站观察,此病只在稻穗的个别小穗的少数谷粒上表现症状,无全穗发病现象。谷粒被害后呈淡黄色、淡青色或青色,谷粒干秕、较饱满或饱满,颖壳张开或不张开,谷
Cereals powdery mildew in hybrid rice and hybrid rice farming incidence. According to the survey, Liangji commune agricultural station three teams of 14.5 acres Nanyou two system of farming, the highest incidence of grain 39.3%. In addition, “five hundred”, IR24, IR26, Nanjing 11 and other conventional mid-season rice also have the disease. Grain smut is caused by a basidiomycete infection. According to the county agricultural institute and Liangji commune agricultural station observation, the disease only in a few spikelets of rice grains on the performance of a small number of symptoms, no panicle onset phenomenon. After the grain damage was pale yellow, pale green or blue, dry grains of rice, more full or full, glume open or not, Valley