论文部分内容阅读
杂交水稻的制种是水稻杂交优势利用的重要生产环节,制种产量及质量的高低直接影响到杂交稻的生产发展,而获得较高的制种产量又主要在于父母本花期和花时相遇。在花时基本吻合的情况下,花期相遇就成了制种工作成败的关键一环。一九七七年由于花期相遇较差,十七亩制种田平均单产七十斤。本课题与大洼县荣兴农场农科站协作,在一九七七年从探讨雄性不育恢复系与雄性不育系的生育规律入手,研究了以
Seed production of hybrid rice is an important production link for the utilization of rice hybrids. The yield and quality of seed production directly affect the production and development of hybrid rice, and the higher yield of seed production mainly lies in the parents’ flowering and flowering encounter. In the case of basically consistent flowers, flowering met the success of seed production has become a key link. In 1977, due to poor flowering encounter, the average yield of 17 acres of farming yields 70 pounds. In collaboration with Rongxing Farm Agricultural Station in Dawa County, this project started with the discussion of the reproductive rules of male sterile lines and male sterile lines in 1977,