【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。更多还原

【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.更多还原