棉花良种繁育繁种不同于一般的棉花栽培,要获得纯度好、发芽率高、籽粒饱满的棉花良种,需要采取一系列技术措施。一、选好繁种田繁种基地的生产条件要优于一般的大田生产,以促使棉株生长发育良好,增大繁殖系数,保证种子质量。要选择地势平坦、排灌方便、土壤肥沃、地力均匀、管理方便、集中连片、无病害或病害较轻、耕作水平较高的地块作为棉花繁种田。棉花是常异花授粉作物,异交率的高低取 Breeding and breeding varieties of cotton is different from the general cotton cultivation, to obtain good purity, germination rate, full grain cotton varieties, need to take a series of technical measures. First, select a good variety of breeding base breeding conditions better than the general field production, in order to promote cotton growth and development of good, increase the breeding coefficient, to ensure the quality of the seeds. To select the flat topography, irrigation and drainage convenience, fertile soil, uniform fertility, easy management, concentrated contiguous, disease-free or less susceptible to disease, the higher the level of cultivation of land as cotton farming. Cotton is often cross-pollination crop, take the level of outgrowth rate