从六十年代中期起,我们通过品种间的有性杂交,先后培育了一批莜麦新品种,在生产上推广,起到了很好的增产作用(?)如何改进莜麦有性杂交技术.使其简便易行,容易掌握,而且杂交结实率高.这是莜麦育种工作中迫切需要能解决的问题(?)为此,我们进行了改进莜麦杂交技术的研究(?) Since the mid-1960s, we have cultivated a number of new varieties of barley through sexual hybridization among varieties and promoted them in production, which has played a very good yield-increasing role (?) How to improve the sexual hybridization of barley. Making it simple, easy to grasp, and high seed setting rate, which is an urgent problem to be solved in the breeding of oatmeal. (?) Therefore, we carried out the research of improving oat hybridization technology (?)