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杂交水稻目前已在生产上广泛推广应用,並取得了显著的增产效果。但由于繁殖,制种的产量不高而影响了杂交水稻的发展速度。为了摸清杂交水稻亲本开花规律,探索影响亲本开花的有关因素,研究提高繁殖、制种产量的有效措施,1977年我们与本院杂交水稻培训班学员一起,在宿县紫芦湖院部农场对当前生产上应用的几个杂交水稻亲本的开花习性作了初步观察,现将观察结果简要总结如下:
Hybrid rice has been widely applied in production and has achieved significant yield increase. However, due to poor breeding and seed production, the development of hybrid rice is affected. In order to find out the law of flowering of parents of hybrid rice and to explore the factors that affect the flowering of parents, we studied the effective measures to increase the production and seed production. In 1977, we worked with the students of hybrid rice training course of our hospital, Preliminary observations were made on the flowering habits of several hybrid rice parents currently used in production. The observation results are briefly summarized as follows: