显性核不育亚麻在育种上的应用研究初报

利用显性核不育亚麻的育性稳定、不育株标记性状明显等遗传特点,进行了轮回选择、品种改良、培育新品种等多种利用途径的探讨。选育出产量超对照（内亚二、三号）８．１％～１８．９％的优良品种“内亚四号”;改良了“内亚二号”不抗枯萎病的缺点;创建了两个轮选群体;选育出２０个品系和一大批优异的单株材料。

A Preliminary Study on Utilization of Dominant Nuclear Sterile Flax in Breeding

Dominant nuclear sterile flax has some genetic properties such as stable sterility and obvious marker on sterile plants. Using these, a series of researches were conducted,e.g.recurrent selection varietal improvement and breeding of new varieties.Also,a series of breeding plans were developed and put into practices. "Neiya 4", which is 8. 9 - 18. 9% heigher in yield than the control group, was bred. "Neiya 2 ", which was susceptible to wile disease originally, was improved. By now,two recurrent selection groups have been developed, 20 strains as well as a lot of excellent single-plant have been bred and selected.