一、全县棉花已实现杂优化 从五十年代开始,我省一些试验生产单位就对棉花杂优利用进行了测配试验研究,多年来未取得理想结果,给人们形成棉花杂交花工多、成本高、优势不显著的印象。杂种优势是生物界普遍存在的现象,在棉花生产上如何普及利用,经靖江县农业科技工作者多年的努力和实践,已取得初步成效。 该县植棉历史悠久,生产水平较高,是我省1964年首创百斤皮棉县之一。七十年代 First, the county cotton hybrid optimization has been achieved From the fifties onwards, some experimental units in our province on hybrid miscellaneous use of the testing of the test, over the years did not achieve the desired results, to give people the opportunity to form a cotton hybrid population, High cost, the advantage is not significant impression. Heterosis is a common phenomenon in the biological world, how to popularize the use of cotton in production, and has achieved initial success after many years of hard work and practice by agricultural scientists and technicians in Jingjiang County. The county has a long history of cotton-planting, high-level production, is the province in 1964, one of the first 100 kg cotton counties. Seventies