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杂交稻再生制种能充分利用土地和光热资源,投入少,效益高,是增种增收的一条新途径。1991年搞威优63再生制种试验10亩,全年平均每亩收获杂交种子315.45公斤(头季亩产210.56公斤,再生季亩产104.89公斤),亩纯收入达1546元。再生季制种省工,省种,经济效益高,亩纯收入达565元,能节约制种土地35％,效益十分显著。威优63再生制种主要技术是:
Hybrid rice seed production can make full use of land and light and heat resources, less investment, high efficiency, is a new way to increase income. In 1991, Weiyou 63 was used to produce 10 acres of regenerated seeds. The average annual harvest of hybrid seeds was 315.45 kilograms (210.56 kilograms per mu in the first season and 104.89 kilograms per mu in the regeneration season). The net income per mu reached 1546 yuan. Regeneration season, provincial production, provincial species, high economic efficiency, net income of 565 yuan per mu, can save seed production 35%, the effect is very significant. Weiyou 63 regenerative main technology is: