粳稻品质性状间及其与植株性状和产量性状间的遗传相关

利用朱军等提出的种子性状遗传模型，采用 3×3 NCⅡ正反交设计的亲本和部分组合F2代种子，分析了品质性状糙米率、垩白粒率、垩白面积和AC间及上述品质性状与株高、穗部性状等的遗传相关，以期为粳稻育种后代选择提供指导。结果表明，精米重与糙米率存在极显著的母体加性相关；虽然控制品质性状的主要遗传效应分量与植株性状相应遗传效应分量遗传协方差不显著，但在其他相应遗传效应分量方面存在着复杂的关系。

Genetic Correlations between Quality Traits and Other Economic Traits in Japonica Rice

Genetic correlations among brown rice rate, chalkiness grain rate, chalkiness area and AC, and correlations between these quality traits and plant height and panicle trait were analyzed using parental seeds of 3 x 3 NC II reciprocal mating and some F2 generation seeds by the genetic model given by Zhu Jun for the selection of japonica breeding progeny. The results showed that milled rice weight and brown rice rate are highly significant correlation with maternal additive effect. The genetic covariance between genetic effect components of quality traits and agronomy traits was not significant but that between quality and other plant traits was complicated.