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作者于1989年9～10月,在水稻成熟期选择有代表性农家品种,选取不同稻曲病粒数的稻穗各20穗,对不同病粒数与空秕率、千粒重及产量损失率的关系进行考察。考察结果表明:随着病粒数的增加,空秕粒率不断上升,千粒重下降,损失率逐渐增人。每增加一病粒,空秕粒率上升3～9%,平均上升4.67%:千粒重降低0.2～1.5克,平均降低0.67克;产量损失率增大3～10%,平均增大6.71%。经相关性测定,三者与病粒数
From September to October of 1989, representative peasant varieties were selected at the ripening stage of rice and 20 ears of rice with different numbers of false smut grains were selected. The effects of grain number, empty grain yield, 1000-grain weight and yield loss rate Relationship to investigate. The results showed that: with the increase of the number of sick grains, the rate of the grain of Kongjiao continued to increase, the grain weight of 1000 decreased, and the loss rate gradually increased. For each additional grain, the rate of empty grain increased by 3 ~ 9% with an average increase of 4.67%. The grain weight decreased by 0.2 ~ 1.5g with an average reduction of 0.67g. The yield loss increased by 3 ~ 10% with an average increase of 6.71%. Determined by the correlation between the three and the number of particles