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本文对两系稻籼粳交组合151S/华明921和151S/晚三及对照三系稻杂交组合汕优77分别进行剪叶和剪穗处理,并考察穗粒数、实粒数、结实率等性状作为基本资料,分析其部分库源关系对空秕粒形成的影响。结果表明:籼粳杂交稻的结实情况主要受库源关系的调节,且其受源的影响比较大,属于源限制型。因此生产上籼粳交杂后期功能叶的保护比三系杂交水稻更为重要。其对结实率的提高有关键性作用。
In this paper, we cut and screened the leaves of the two-line indica-japonica crosses 151S / Huaming 921 and 151S / late-three and the three-line hybrid rice combinations Shanyou 77 respectively. The grain number, And other traits as the basic data to analyze the impact of some of their relationship between source and sink on the formation of airborne particles. The results showed that the seed setting of indica japonica hybrid rice was mainly regulated by the relationship between the source and the sink, and its source was affected a lot, which belonged to the source restriction type. Therefore, it is more important to protect function leaves of indica and japonica hybrids than three-line hybrid rice at the late stage of production. It has a crucial effect on the improvement of seed setting rate.