棉花和其他作物一样,存在着杂种优势.棉花杂种优势利用在我区发展很快。但是,目前人工杂交制种普遍存在工效低,成铃率低和杂交铃重低的现象,还缺乏高优势组合,栽培跟不上等,限制了杂交棉的大面积迅速推广。为了使杂交棉尽快为生产利用,促进棉花大上快上,谈几点意见,供参考。一、选配好亲本组合是杂种优势利用的关键亲本间的遗传差异是产生杂种优势的根 Cotton, like other crops, has the advantage of heterosis. The utilization of cotton heterosis has been developing rapidly in our region. However, at present, artificial hybridization generally has the problems of low efficiency, low boll rate and low boll weight, lack of high-quality combination and inability to cultivate, which limits the rapid popularization of large area of ​​hybrid cotton. In order to make hybrid cotton as soon as possible for production and utilization, to promote cotton big fast, talk a few comments for reference. First, matching a good parent combination is the key to the utilization of heterosis Genetic differences between parents is the root of heterosis