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通州、如皋两市的田间调查和室内考种结果表明,稻曲病对水稻的为害主要表现为:增加单穗病粒率,降低结实率,同时对病粒附近健粒,尤其是对靠近主轴的稻粒的千粒重有影响。通径分析结果显示,其为害损失率,主要决定于病粒率,其次是结实率。
The results of field investigation and indoor test in Tongzhou and Rugao showed that the main damage to rice caused by False Smut is as follows: increase the grain rate per head and reduce the seed setting rate, and at the same time, Of the thousand grain weight of rice grains have an impact. The results of path analysis showed that the damage loss rate was mainly determined by the disease rate, followed by the seed setting rate.