四川农业大学学报 ›› 2006, Vol. 24 ›› Issue (04): 390-393.doi: 10.16036/j.issn.1000-2650.2006.04.004

• 研究论文 • 上一篇    下一篇

四川省中籼中熟杂交水稻10年区试分析

吕建群, 曾宪平   

  1. 四川省农科院 作物所, 成都 610066
  • 收稿日期:2006-06-22 出版日期:2006-12-31 发布日期:2017-03-06

Analysis Sichuan Mid-maturity Hybrid Rice Trial Last Decade

LÜ Jian-qun, ZENG Xian-ping   

  1. Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
  • Received:2006-06-22 Online:2006-12-31 Published:2017-03-06

摘要: 对1996~2005年四川省中籼中熟杂交水稻区试试验86个组合的116组数据进行产量分析,结果表明,在十年间,四川省中籼中熟杂交水稻产量育种处于徘徊阶段(产量与辐优838相当),没有突破性进展。对影响该组品种的产量因子进行相关和主成分分析,得出结论,以增加有效穗、大穗,重穗为核心增加单株产量,适当略降植株群体,控制生育期,保持一定株高是四川中熟杂交水稻高产育种的核心方向。

关键词: 杂交水稻, 中籼中熟, 主成分分析

Abstract: By analyzing 116 group data collected from 86 new single season middle maturity hybrid rices developed in Sichuan for Provincial Yield Trials during 1996 to 2005 with yield analysis, the result is got, which indicates that the new hybrid rice yield is similar to CK(Fu You 838) during this period, no statistically and extremely significant increase over the CK. The limited factors of rice yield were studied by Coefficient of the correction and Principle components analysis, and the result shows:The breakthrough point of breeding mid-maturity hybrid rice with high yield in Sichuan Province is breeding new combinations with improving effective panicles, the larger and weight panicles to increase the yield per plant for properly decreasing hill number per unit area, selecting the given growth duration and desirable plant height.

Key words: hybrid rice, mid-maturity, principal components analysis

中图分类号: 

  • S511.2+1