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本文综述了1986年底以来进行的亲本生育特性观察、父本栽插方式、生长激素应用、稻粒黑粉病防治等有关试验研究结果及其对改进我省制种技术,提高制种产量,扩大制种面积和实现全省杂交稻种子自给所起的重要作用.1990年全省制种16.9万亩,实施了以“一二三”工程为核心的综合配套技术措施,虽遇不利气候条件的影响,但仍获得亩产118.06公斤的较好收成,总产达1995.3万公斤.与1986年相比.制种面积扩大178.96%,单产提高11.79%,总产增加212.0%.全省杂交稻种植面积由1987年的1024.2万亩扩大到1991年的1600.0万亩(计划面积),而用种自给率却从49.9%提高到99.76%,基本上实现了我省杂交稻种自给的目标.
This review summarizes the results of the pilot studies on the characteristics of parental reproduction, the methods of male parent planting, the application of growth hormone and the prevention and control of rice powdery mildew since the end of 1986, and the results of their experiments on improving seed production techniques in our province, increasing seed production and expanding Seed production area and the province to achieve self-sufficiency of hybrid rice seed plays an important role in 1990, the province seed 169000 acres, the implementation of the “one two three ” project as the core of a comprehensive package of technical measures, although the unfavorable climate Conditions, but still get a better yield of 118.06 kilograms per mu, with a total output of 1.953 million kilograms.Compared with 1986, seed production area expanded by 178.96%, yield increased 11.79%, total output increased 212.0%. The area under rice cultivation expanded from 1,024,000 mu in 1987 to 1,600,000 mu (planned area) in 1991, while the rate of self-sufficiency increased from 49.9% to 99.76%, basically achieving the goal of self-sufficiency in hybrid rice seedings in our province.