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一、解决剥包的迫切性杂交水稻制种不育系包颈问题,是我省多年一直尚未解决的一大难题,也是全国杂交水稻制种急待解决和进行探讨的问题之一。今年在县农场16.9亩杂交水稻制种攻关试验中,产量2673.3斤,平均亩产158.2斤,最高亩产265.1斤(面积2.1亩)。初步解决了杂交水稻制种的母本包颈现象。今年我县农场杂交水稻制种已不再进行剥包,并在七个小区对比试验中,经三次反复鉴定,效果显著。一笔经济帐:以割叶为例,今年农场每亩割一次叶要花6～8元雇请劳力,而剥包更费时、费工,要反复剥2～3次才能完成。因此,要彻底完成一亩面积的剥包就得花15～20
First, the urgency of stripping to solve the problem of cross-neck hybrid rice sterile CMS system is our province for many years has been a major problem has not been solved, but also the national hybrid rice seedling urgent solution and to explore one of the issues. This year in the county farm 16.9 acres of hybrid rice seed research test, the yield 2673.3 kg, the average yield of 158.2 kg, the highest yield 265.1 kg (area 2.1 acres). The preliminary solution to the hybrid rice seed production package neck phenomenon. This year my county farm hybrid rice seed production is no longer stripping, and in the seven plot comparison test, the three repeated identification, the effect is significant. An economic account: to cut the leaves, for example, cut the farm this year, acres of leaves to spend 6 to 8 yuan to hire labor, and stripping more time-consuming, labor, to repeatedly stripping 2 or 3 times to complete. Therefore, to completely complete the stripping of an acre area have to spend 15 to 20