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小麦冠层温度的遗传和配合力分析

Analysis of the inheritance and combining ability of the canopy temperature in wheat

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【作者】 申国安王竹林李万昌董普辉刘曙东何蓓如

【Author】 SHEN Guo-an,WANG Zhu-lin,LI Wan-chang, DONG Pu-hui,LIU Shu-dong,HE Pei-ru (College of Agronomy,Nothwest Science and Technology University of Agriculture and Forestry,Yangling,Shaanxi 712100,China)

【机构】 西北农林科技大学农学院!陕西杨陵西农校区712100西北农林科技大学农学院!陕

【摘要】 于 1 997~ 1 999年用 6个不同的材料配制成完全双列杂交 ,研究小麦冠层温度的遗传。结果表明 ,小麦冠层温度的遗传符合加性—显性遗传模型 ,以加性效应为主 ,呈部分显性 ,显性方向为低温型。不受上位性影响 ,狭义遗传力为 86.95%。一般配合力方差和特殊配合力方差分别达到极显著和显著水平。小偃 6号为最有价值的亲本 ,其次为陕 2 2 9,87B1 - 30 3和 2 0 5。

【Abstract】 The genetic model and combining ability of the canopy temperature were studied in 36 wheat hybrids crossed with 6×6 diallel from 1997 to 1999.The results showed that the inheritane of the canopy temperature was fit to addition-dominant model.The additive effect was more important than the dominant effect.The low temperature was partially dominant to high temperature.The narrow heritability was 86.95%.The variance of the general and special combining ability was very significant and significant respectively.The Xiaoyan 6 was the best in all parents.

【基金】 杨凌农业生物技术育种中心资助项目! ( 1 999-9)
  • 【文献出处】 西北农业大学学报 ,The Journal of Northwest Agricultural University , 编辑部邮箱 ,2000年06期
  • 【分类号】S512.1
  • 【被引频次】20
  • 【下载频次】114
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