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进行杂交水稻制种,必须有一个符合要求的隔离条件。它不仅是提高种子纯度,保证种子质量的重要措施,而且还是左右制种面积落实的先决条件。目前实现这一要求的做法虽多,但各有利弊,且都受着若干因子的限制。为了解决这些问题,1982年我们在沙地公社云泉队的大段上搞了3亩汕优2号组合的早秋制种试验,结果收获F_1种子420斤,每亩平均140斤,比同年全县秋制平均亩产75斤增65斤,增长86.7%。1983年又继续搞了48.58亩试验示范,共收F_1种子8054斤,每亩平均165.8斤,比1982年初试亩产增长18.40%,比1983年全县
Hybrid rice seed production, there must be a meet the requirements of the isolation conditions. It is not only an important measure to improve seed purity and seed quality, but also a prerequisite for the implementation of seed production. Although there are many ways to achieve this requirement at present, each has its own advantages and disadvantages, and it is subject to a number of factors. In order to solve these problems, we conducted the early autumn seed production experiment of 3 mu Shanyou No.2 combination on the large segment of Shanshui Commune Yunquan Team in 1982, which resulted in the harvesting of 420 kg of F_1 seeds and an average of 140 kg per mu compared with the same year The average yield per mu 75 kg by the fall of 65 kg, an increase of 86.7%. In 1983, 48.58 mu of pilot demonstration was continued with a total of 8054 kg of F_1 seeds, an average of 165.8 kg per mu, an increase of 18.40% from the first trial in 1982,