杂交稻推广种植以来,危害杂交稻的螟虫发生频繁,而产量却持续上升,除与杂交水稻分蘖力强、群体多、茎粗叶茂,对螟虫具有一定的耐害性和补偿能力以外,笔者通过1983、1987年考察后认为,杂交稻这种补偿能力与剑叶面积的大小关系尤为密切,现整理报道如下。 Since the promotion of hybrid rice planting, the stem borers that endanger the hybrid rice occurrence frequently, but the yield continued to rise, with the exception of hybrid rice and strong tillering ability, population and stem thick leafy, on the stem borer has some resistance and compensatory ability, the author After the inspection in 1983 and 1987, it was concluded that the compensatory ability of hybrid rice is particularly closely related to the size of the leaf area of ​​the flag leaf. The report is organized as follows.