“六五”期间全国杂交稻推广累计面积3844万亩,增产58亿斤,增值6.38亿元,1986年杂交稻新组合可推广3590万亩。 一、在“五五”期间湖南杂交水稻研究中心选育出威优64推广累计面积1400万亩,成优35推广累计面积410万亩;广西农科院水稻所选育的汕优桂8推广累计面积20万亩,这些早熟组合成功地解决了“早而不优和优而不早”难题,使长江流域的杂交晚稻 During the “Sixth Five-Year Plan” period, the total area for promoting hybrid rice in China reached 38.44 million mu, an increase of 5.8 billion kg and a value-added of 638 million yuan. In 1986, the new hybrid rice could be popularized to 35.9 million mu. I. During the “Five-year Plan” period, Hunan Hybrid Rice Research Center selected a total of 14 million mu of Weiyou 64 to promote and 410 million mu of Chenguang 35 to promote. Shanyou Gui 8 selected by the Guangxi Academy of Agricultural Sciences The accumulated area of ​​200000 acres, these precocious combinations successfully solved the “early and not superior and not even early” problem, so that the Yangtze River hybrid late rice