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研究了 6个水稻恶苗病菌菌株孢子液于水稻扬花期接种的稻种 ,翌年种植后 ,水稻恶苗病徒长型病株的症状变化时间、比例、类型及各类型病株对稻谷产量构成因子的影响 ,并比较了同一水稻品种不同菌株间及不同品种同一菌株间的差异。结果表明 ,水稻苗期显症病株除枯死外有 3种转化类型 ,即显症 隐症、显症 隐症 显症、持续显症 ;苗期隐症病株除一直表现为隐症外还有两种转化类型 ,即隐症 显症、隐症 显症 隐症。各类型病苗的最后稻谷产量均较健株的低。
Six rice seedlings of Fusarium oxysporum were inoculated at the flowering stage of rice. After the planting in the following year, the time, proportion and type of the symptoms of the Fusarium venenatum in rice and the effects of various types of diseased plants on the yield components of rice The differences between the same strain of the same rice variety and the same strain of the same variety were compared. The results showed that there were 3 types of transformation except the dead plants in the seedling stage of rice seedling, which were obvious disease symptom, obvious symptom symptom and persistent disease. In addition, There are two types of conversion, that is, obvious disease symptoms, hidden disease significant disease. The final paddy yield of all types of disease seedlings were lower than those of healthy plants.