早籼品种茎叶状的遗传变异与选择

The Hereditary Variation and Selection on Culm-leaf Characters in Early Rice Varieties

采用3次重复的随机区组设计，研究了23个早批品种的11个茎叶性状的遗传参数，分析并比较了各性状的遗传进度、相关遗传进度，并估算了遗传相关信息与遗传相关贡献。上述研究结果揭示，基却节间的选择潜势较大，可作为早批品种株高综合选择的主要性状。

Genetic parameters of 11 culm-leaf characters in 23 early rice varieties were estimated by means of random block design with 3replicates. Genetic advance (GS)and correlation genetic advance (CGS) of each characters were analysed and compared. In addi non, calculation for genetic correlation information (GCI) and genetic correlation contribution (GCC) were also performed. It was revealed that the base internode length had great potential for selection, thereby it could be used as an important selection character to plant height in early rice varieties.