鉴定转育Ht基因的玉米自交系实用性探讨

THE EVAIUATION ON THE WTILITY OF MAIZE INHRED LINES WITH Ht GERE

研究8对近等基因系在植株性状,果穗性状,抗病性,配合力效应等方面的差异。结果表明:转育Ht基因系抗病性明显提高,不改变其配合力,用其配制的杂交种抗病性强,茎秆不早衰,产量略有提高,但均不显著。

Traits of plant and ear, resistance to disease, and comhiming ability of eight pair of near isolines of maize inbreds with Ht alleles were investigated. The result, indicated that the disease resistance of the nibved lines with Ht gene increased significantly, aitbout alterng their combining ability.The resistance of hybrids made with the lines wasalso enhanced slightly. While the wield has not increused significontly.