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。
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.
出处
《西北农业大学学报》
CSCD
北大核心
2000年第6期43-47,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
基金
杨凌农业生物技术育种中心资助项目! ( 1 999-9)
关键词
小麦
冠层温度
遗传模型
加性效应
配合力
wheat
canopy temperature
genetic model
additive effect
combining ability
