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本试验应用形态指数法对籼粳稻杂交育成品种进行了分类研究,探讨了形态指数法中作为分类指标的亚种特性抽穗时壳色、稃毛、叶毛、1～2穗节长、籽粒长宽比和酚反应的遗传规律及其与经济性状的关系。水稻亚种特性与经济性状有一定相关性,亚种特性与结实率呈极显著相关,与株高、穗数、穗重呈显著相关,与枝梗性状关系尤为密切,亚种特性及程氏指数与一次枝梗数呈
In this study, the morphological index method was used to classify indica and japonica hybrids. The subspecies characteristics of morphological index method as index of classification were discussed. The results showed that shell color, vellus hair, leaf hair, 1-2 spike length and long grain length Genetic laws of aspect ratio and phenol reaction and their relationship with economic traits. Subspecies characteristics of rice and economic traits have some relevance, subspecies characteristics and seed setting rate was significantly correlated with plant height, spikes, panicle weight was significantly correlated with the characteristics of branch and stem are particularly close, subspecies characteristics and Cheng Index and the number of primary branches showed