论文部分内容阅读
对利用核不育系棉花制种去除母本可育株分二次进行。第一次通过裸眼观察将同一穴中的一株壮苗直接拔除，第二次同常规方法。结果表明，第一次拔除可育株的时间可比常规方法约提前２０天，第二次拔除可育株（定苗）的时间可比常规方法约提前５天。从而明显改善了不育株的生长环境，提高了制种的效率。
On the use of sterile cotton seed production of male sterile lines divided into secondary. The first observation of the naked eye will be the same hole in a strong seedlings plucked directly, the second with the conventional method. The results showed that the first removal of fertile plants can be about 20 days earlier than the conventional method, and the second removal of fertile plants can be about 5 days earlier than the conventional method. Thus obviously improving the growth environment of sterile plants and improving the efficiency of seed production.