多穗型青贮玉米科多8号制种技术比较

The comparison on seed production technology of multiple-ear silage maize Keduo No. 8

科多8号是中国科学院遗传研究所选育的青饲青贮玉米专用品种,深受北方农牧市场的欢迎。但由于制种生产比较效益较低等原因,群众没有制种积极性。文章结合多年来制种工作的经验和近年进行的一些试验研究,从播种期、父母本安排、去雄方法等方面进行深入研究探讨,并提出高效制种模式。

Keduo No. 8 is a special maize variety for silage bred by Genetics Institute of Chinese Academy of Sciences, which is deeply welcomed by fanning market in Northern China. However, due to lower benefit in seed production, farmers have the low desire in seed breeding. Integrated with years＂ experiences in seed production and the experiments in recent years, this paper has discussed deeply the topic in aspects of sowing period, parents arrangement and flower sterilization method etc. So as to put forward the high -effect seed production model.