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作物学报

作物学报 ›› 1980, Vol. 6 ›› Issue (02): 99-110.

• 研究论文 • 上一篇    下一篇

水稻不同选育方法的遗传率研究

沈锦骅   

  1. 中国农业科学院作物育种栽培研究所
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1980-06-12 网络出版日期:1980-06-12

HERITABILITY ESTIMATES FROM DIFFERENT SELECTION METHODS IN RICE BREEDING

Shen Jinhua   

  1. Institute of Crop Breeding and Cultivation; Academy of Agricultural Sciences
  • Received:1900-01-01 Revised:1900-01-01 Published:1980-06-12 Published online:1980-06-12

PDF

930

被引次数

15

摘要： 作者根据遗传率的研究结果,提出了对水稻杂交后代的有效选择方法。报告指出,混合法由于群体成分中 M 及 K 值高,至 F4,各性状的遗传率仍较低。在个体选择中尤其是遗传率低的性状必需要放宽尺度。系谱法从 F4开始,一般可进行群间选择,但对远距离亲本杂交组合,F4应以群内系统间选择为主。派生

Abstract: A study was made on the heritability of major economic charactersin F3 and F4 progenies of rice hybrids raised under different methodsof breeding.The results are summarized as follows:1.The effectiveness of bulk method of breeding depends to a greatextent on the intensity of se

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