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分蘖习性是水稻株型的一个重要组成部分,它包括分蘖角和分蘖力两个性状。分蘖角度反映了主茎与分蘖的集散情况,影响到丛间和丛内对光、气的竞争问题。分蘖力表现为分蘖数的多少,决定了穗数及光合叶面积的大小。对分蘖力的研究报道较多,但对分蘖角国内外很少研究,在国内迄今还未见报道。作者根据三年来的研究资料,着重报道一些籼稻品种分蘖角的类型及其在杂种后代的遗传变异规律。
Tillering habits is an important part of rice plant type. It includes two traits of tiller angle and tillering ability. The tiller angle reflects the distribution of main stems and tillers, affecting the competition between light and air in the intercord and in the plexus. Tillering performance for the number of tillers, determines the number of spikes and photosynthetic leaf area size. There are many reports about the tillering force, but little research has been done on the tiller angle at home and abroad, and so far no reports have been reported in China. Based on the research data of the past three years, the author focuses on the types of indica rice tillers and their genetic variation in hybrids.