四川农业大学学报 ›› 1993, Vol. 11 ›› Issue (04): 551-557.doi: 10.16036/j.issn.1000-2650.1993.04.010

• 研究论文 • 上一篇    下一篇

玉米EC系列姊妹系的交配效应研究

刘礼超, 荣廷昭, 倪昔玉   

  1. 四川农业大学数量遗传研究室, 雅安市 625014
  • 收稿日期:1992-06-29 出版日期:1993-12-31 发布日期:2017-04-22

INVESTIGATION ON MATING EFFECTS OF SISTER LINES OF EC SERIES IN CORN

Liu Lichao, et al   

  1. Insititute of Quantitative Genetic, Sichuan Agricultural University, Ya'an, Sichuan, Chinas, Zip Code. 625014
  • Received:1992-06-29 Online:1993-12-31 Published:2017-04-22

摘要: 本文探讨了EC系列姊妹系的交配效应。结果表明,EC系列姊妹系在单株粒重及其它农艺性状上,既有一定的差异,同时也保持了一定程度的相似性。用姊妹系组配成姊妹姝种,其生产力得到某种程度的恢复,单株粒重及其它农艺性状资普遍表现出优势,单株粒重优势尤其突出,产种量大大提高。用姊妹系组配的单交种之间、改良单交种之间的单株粒重及其它农艺性状呈现显著差异。姊妹种与改良单交种单株粒重相关不显著,单交种与改良单交种的单株粒重相关显著。

关键词: 玉米, 姊妹系, 姊妹种, 改良单杂交种, 单交种

Abstract: It was observed that the grain weight per plant and other agronomic characters were highly similar, but also rather different among the sister lines of EC series. The sister hybrids from mating these sister lines appeared generally heterosis on the grain weight per plant and other agronomic characters, and partly restored their viabilities. But the coefficient of correlation between the sister hybrids and the improved single crosses was not significant statistically with respect to the grain yield per plant.

Key words: CORN, SISTER LINES, SIBLING SPECIES, LMPROVED SINGLE CROSSES, SINGLE CROSSES

中图分类号: 

  • S513