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小麦的主要经济性状,如株高、穗长、每穗粒数、株粒重、千粒重等,纯属连续变异的性状,或称数量性状,易受环境条件的影响。这些性状与产量关系密切,唯有对这些性状的遗传力作比较深入的研究,始能在各世代中进行有效选择。国内在小麦数量性状的研究方面,已经初步展开。本文系1962—1963年对杂种二代经济性状遗传力效应研究的初步结果。
The main economic traits of wheat, such as plant height, spike length, grain number per panicle, grain weight and 1000-grain weight, are purely continuous variation traits or quantitative traits and are easily affected by environmental conditions. These traits are closely related to yield, and only through a more in-depth study on the heritability of these traits can we make effective choices in all generations. Domestic research on the quantitative traits of wheat has been initially carried out. This article is from 1962 to 1963 on the second generation economic characteristics of hybrids heritability effects of the preliminary results.