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在保证一定的基本苗和父母本花遇良好的基础上,主攻实粒数就成了夺取汕优64制种高产的重要环节。在这方面,我们进行了探索,取得了较好的效果。去年我县三河乡乔庄村509亩汕优64制种,异交结实率达到42%,平均单产172.6公斤,比全省平均单产121.35公斤增产42.2%。其中200公斤以上的高产田有81.7亩,占制种面积的16.1%;250公斤以上的有2.8亩。创造了全县制种历史最好水平。现就提高汕优64制种异交结实率的几个技术问题,谈谈浅见:
In ensuring a certain basic seedlings and parents of the flowers on the basis of a good, the main real particles became the key to seize Shanyou 64 high yield. In this regard, we conducted explorations and achieved good results. Last year, my county Sanhe Township Qiao Village 509 acres Shanyou 64 seed, outcrossing rate of 42%, average yield 172.6 kilograms, higher than the province’s average yield 121.35 kilograms 42.2% increase. Among them, there are 81.7 mu of high-yielding fields of more than 200 kilograms, accounting for 16.1% of the total area under production; 2.8 mu of more than 250 kilos. Created the history of the best species in the county. Now to improve Shanyou 64 seed outbreak rate of several technical problems, to talk about the humble opinion: