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把统计分析的方法应用到作物育种中去,对加速育种进程具有较大的推动作用。过去由于忽视了杂交粳稻各性状间的相互关系和其优势规律的研究,只倾向于大穗型组合的选育,结果导致了杂交稻植株过高、穗数少、产量不高的弊病。实践证明,水稻三系育种应重视对其杂种优势的研究,这将有助于科学地、有预见性地以及较准确地选用杂交亲本和尽快筛选出强优势的杂交稻新组合。为此,我们在1981年研究的基础上,于1982年对杂交稻几个主要数量性状优势规律和各性状间的相互关系继续进行了探讨。
The method of statistical analysis applied to crop breeding to accelerate the breeding process has a greater role in promoting. In the past, neglect of the relationship between the traits of hybrid japonica rice and its dominant law only tend to breeding large panicle type combinations, the result led hybrid rice plants too high, fewer spikes, the yield is not high ills. Practice has proved that three lines of rice breeding should pay attention to the study of its heterosis, which will help scientifically, predictably and more accurately selected hybrid parents and as soon as possible to screen a strong new combinations of hybrid rice. Therefore, on the basis of the research in 1981, we continued to discuss the dominant law of several major quantitative traits and the relationships among the traits in hybrid rice in 1982.