1986年娄底地区种子公司在基地上进行了威优49春制试验,面积0.9亩,收获杂交种子111.2公斤,折合亩产123.6公斤。其主要技术措施是:(1)准确安排好播差期。根据恢复系测64—49的生育特性,第一期父本于3月26日播种,第二期在4月2日播种,第三期父本和母本同时在4月9日播种,时差为14天 In 1986, Loudi Seed Company conducted the test of Weiyou 49 spring on the base with an area of ​​0.9 mu and 111.2 kg of hybrid seeds harvested, equivalent to 123.6 kg per mu. The main technical measures are: (1) accurate arrangements for sowing period. According to the reproductive line 64-49, the first stage was sown on March 26, the second stage was sown on April 2, the third stage was sowed on April 9 at the same time, and the time difference For 14 days