论文部分内容阅读
我县自1976年引入农业部推广的杂交粳稻黎优57试种以来,表现比常规品种新稻68—11早熟、省水、抗倒,增产1.5—2成,颇受稻农欢迎。几年来,初步摸索到黎优57的不育系黎明A对灌水多少、施肥用量、光照时间、温度高低以及秧龄和秧苗素质等方面比恢复系C57—2敏感,因此,在制种时,要针对其特点,改进栽培技术,促使父、母本花期相遇,加强人工辅助授粉,制种产量就会大幅度提高。1980年冯庄大队制种7.55亩,由1979年制种亩
Since the introduction of the hybrid Japonica Liyou 57 trial promoted by the Ministry of Agriculture in 1976, the county has performed more precocious than the conventional rice variety Xinxiong 68-11, saving water, resisting lodging and increasing the yield by 1.5-2%. Over the past few years, preliminary found Leiyou 57 CMS Liming A is more sensitive than the restoring line C57-2 in the amount of irrigation, the amount of fertilization, light time, temperature, seedling age and seedling quality, etc. Therefore, According to its characteristics, improved cultivation techniques, prompting the parent and the female flower encounter, strengthen artificial pollination, seed production will be greatly improved. Fengzhuang brigade in 1980 produced 7.55 acres of seed, planted by the acres in 1979