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河北省稻作所1987～1989年进行了稻曲病病源及对水稻产量的影响专题研究,其技术水平达到了国内先进。 1.经过多次测定结果表明,稻曲病不仅形成病粒,还影响整个发病枝梗及相邻无病枝梗的稻粒,使结实率、千粒重及稻米品质均受较大影响,从而对稻曲病为害的严重性有了新的认识。 2.首次探明并公开报道了在河北,陕西、北京,天津等省,市稻区均有稻曲病菌核存在。菌核是翌年稻曲病的主要侵染源之一。土壤是菌核的越冬场所,气流是病菌孢子传播的途径。此外还证明
Hebei Institute of rice from 1987 to 1989 conducted a study on the origin of rice smut and its impact on rice yield thematic studies, the technical level reached the domestic advanced. 1. After many determinations, it shows that False Smut is not only formed into granulosa but also affect the whole diseased stems and the neighboring non-diseased stems, which will affect the seed setting rate, 1000-grain weight and rice quality greatly, False false smut has a new understanding of the seriousness of the disease. 2. For the first time proved and publicly reported in the provinces of Hebei, Shaanxi, Beijing, Tianjin and other cities have rice false smut nuclear existence. Sclerotinia is one of the major sources of false smut disease in the following year. The soil is the overwintering site of the sclerotia, and the air flow is the route through which the germs spread. In addition it is proved