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近些年来,国内许多单位对杂交水稻空秕粒形成的原因及其防御措施作过不少研究,一致认为,杂交水稻对温度反应敏感,不适的高温或低温均可引起空秕粒的大量发生。本研究就是在这一认识的基础上进一步探明不同杂交组合对高低温反应的差异以及高低温致害的关键时期和温度指标,为生产上合理利用这些组合和提高结实率提供一定依据。
In recent years, many domestic units on the formation of hybrid rice Kong Kong grain causes and defensive measures done a lot of research, agreed that hybrid rice sensitive to temperature, discomfort can cause high temperature or low temperature Kong large number of occurrence . This study is based on this understanding to further explore the different combinations of high and low temperature response to the differences as well as the key period and temperature indicators of high and low temperature damage for the production of rational use of these combinations and to provide a basis for improving the seed setting rate.