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作物学报

作物学报 ›› 1985, Vol. 11 ›› Issue (02): 73-80.

• 研究论文 •    下一篇

关于水稻品种间遗传差异的研究

汤陵华   

  1. 江苏省农科院粮作所品资室; 中国农科院作物育种栽培研究所
  • 收稿日期:1984-01-12 修回日期:1985-02-03 出版日期:1985-06-12 网络出版日期:1985-06-12

A STUDY OF GENETIC DIFFERENCE AMONG RICE VARIETIES

Tang Linghua,Shen Jinhua   

  1. Jiangsu Academy of Agricultural Sciences;Institute of Crop Breeding and Cultivation; Chinese Academy of Agricultural Sciences
  • Received:1984-01-12 Revised:1985-02-03 Published:1985-06-12 Published online:1985-06-12

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921

被引次数

31

摘要： 本研究对70个水稻品种的18个性状进行主成分分析后,用遗传向量b_(gki)=1/(λ_k)(?)1_(kj)r_(gij)h_ih_j估算各分量对主成分的遗传贡献。定义各品种遗传向量间的距离为遗传距离。用遗传距离聚类,可把70个水稻品种分成11个生态类型,类型内的品种具有基本相似的生态特征和遗传基础。聚类分析表明,BT 型杂交粳稻所用的保持系与恢

Abstract: This study investigated 18 characters of 70 rice varieties.After an-alysing the principal components of these characters the genetic contribu-tion of each component for the principal component can be estimatedby using the formula:b_(ghi)=1/(λ~(1/2))l_(kj)·r_(gij)·h_i·h_jBy clustering analysis,70

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