论文部分内容阅读
1984年,在总结了我县近十年制种经验的基础上,设计了“杂交水稻制种规范化栽培”方案,连续两年应用在全县威优64和威优6号秋季制种上,取得了显著的效果。一、产量设计供试组合为威优64和威优6号。母本每亩有效穗20～24万,每穗实粒数25～30粒,结实率25～30%,干粒重30克。威优64单产300斤,威优6号单产250斤。全部秋制。
In 1984, on the basis of summing up the experience of seed production in our county in recent ten years, we designed the program of “standardized cultivation of hybrid rice seed production” and applied it for two consecutive years in the autumn seed production of Weiyou 64 and Weiyou 6 On the achieved remarkable results. First, the production design for the test combination of Wei You 64 and Wei You 6. The female parent has an effective spike of 20 to 240,000 per acre, with 25 to 30 grains per spike, 25 to 30% of seed setting, and 30 grams of dry weight. Weiyou 64 yield 300 pounds, Weiyou 6 yield 250 pounds. All autumn.