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1973—79年研究表明:早期世代选出的单株成熟期有较高的遗传力,F_2选出的早熟单株,其 F_3系统就偏早。构成产量性状的单株荚数。每荚粒数和百粒重就其单一性状的遗传力而言,则比单株总粒重高得多,达极显著相关;与产量有密切相关的分枝数、株高和节数也有较高相关,早熟世代虽不宜进行
Studies from 1973 to 1979 showed that the early maturity of the individual plants selected in the early generation had a higher heritability. The early F_3 plants selected by the F_2 had earlier F_3 systems. The number of pods per plant that constitutes a yield trait. Per pod number and hundred-grain weight in terms of the heritability of single traits were significantly higher than the total grain weight per plant, reaching a very significant correlation; the number of branches, plant height and number of sections closely related to yield were also Relatively high, precocious generation though not suitable