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水稻杂交后代的选择,根据遗传力的不同,可以有计划的存各世代着重选择那一性状,以提高选择的成效.关于这方面的研究已有报导,但对不同组合间遗传力相差较大,应如何选择报导较少,本文对不同组合间遗传力不同应如何选择进行了研究.材料和方法试验材料共6个杂交组合的第二代及亲本.是我校1979年所作的组合.试验是在学校农场田间进行,全部材料单苗移栽,每组合分别调查亲本和第二代,调查株数一般是100株以上,多达700株;亲本调查20株,
The selection of hybrids of rice is based on the different heritabilities, which can be planned and saved by different generations to enhance the effectiveness of selection.Research on this aspect has been reported, but the heritability of different combinations is quite different , How to choose the less reported, this article on the different heritability between different combinations should be studied.Materials and methods Experimental materials A total of six hybrid combinations of the second generation and the parent is my school made in 1979. Test Is carried out in the school farm field, all materials single seedling transplanting, each parent and the second generation were investigated, the survey of the number of strains is generally more than 100, up to 700 strains; the parent investigation of 20 strains,