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我县采用人工全株去雄授粉、正反交的方法,获得棉花大面积杂交制种的成功。制种面积从1982年的106.8亩扩大到1984年的718.2亩;每亩产种从60.9斤提高到165.2斤;种子成本从每斤的6.29元下降到3.65元。1984年全县12万亩棉田,种植杂交一、二代11.7万亩,皮棉总产值2835万元,比1983年增收539万元。一、科学栽培,促使亲本棉花生长正常科学栽培亲本棉花,促使其生长正常,是实现高产优质的基础。栽培上的主要措施是:
In our county, artificial whole plant was used to pollinate pollination and reciprocal crossing method to obtain the success of hybrid cotton seed production in large area. Seed production area expanded from 106.8 mu in 1982 to 718.2 mu in 1984; the yield per mu was increased from 60.9 kg to 165.2 kg; the cost of seeds was reduced from 6.29 yuan per catty to 3.65 yuan. In 1984, the county’s 12 million mu of cotton fields planted hybrids of 117,000 mu in the first and second generation, with a total output value of 28.35 million yuan and an increase of 5.39 million yuan over 1983. First, the scientific cultivation, to promote the normal growth of cotton parents Scientific cultivation of cotton parents to promote their normal growth is to achieve the basis of high yield and quality. The main measures of cultivation are: