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福鼎县地处闽东北,杂交水稻制种,不论在沿海还是山区均为一年一季中制。为充分利用温光资源,增加土地利用率,提高效益,我所1991年开始承担省、地布置的再生制种技术研究试验项目。试验面积1.3亩,组合为汕优63、特优63,经验收,头季亩产分别为103公斤、168公斤,再生季亩产分别为49.7公斤、56.3公斤。1992年继续本课题,面积10亩,组合为汕优63,并附设特优63作观察。汕优63组合头季亩产1105.9公斤,再生季孕穗期虽遇15、16号台风雨浸淹长达30多小时,亩产仍达36.4公斤。通过两年实践证明,再生制种是可行有效的。现将有关技术总结如下:
Fuding County is located in the northeast of Fujian, hybrid rice seed production, both in the coast and the mountains are in a quarter of a year in the system. In order to make full use of the temperature and light resources, increase land utilization and improve efficiency, in 1991, I started to undertake the research project of regenerative seed production technology research at provincial and municipal levels. Test area of 1.3 acres, the combination of Shanyou 63, Premium 63, experience income, the first quarter were 103 kilograms per mu, 168 kg, quarter of re-production were 49.7 kg, 56.3 kg. In 1992 to continue this topic, an area of 10 acres, the combination of Shanyou 63, and attached Teyou 63 for observation. In the first season of Shanyou 63, 1105.9 kg per mu were produced. During the rebirth season, although the typhoon 15 and 16 flooded for more than 30 hours, the yield per mu reached 36.4 kg. After two years of practice, it is proved that regenerative seed production is feasible and effective. Now the technology is summarized as follows: