杂种优势的利用是提高棉花产量的极为有效的途径。近年来国内外不少产棉国家都相继开展了棉花杂种优势利用的研究工作,且成效显著,已引起世界各国科学工作者的高度重视。印度已选育出增产1—2成的杂交组合,美国的一些育种家认为,棉花生产今后十年的重大突破,可能就在于杂种优势 The use of heterosis is an extremely effective way to increase cotton production. In recent years, many cotton producing countries both at home and abroad have carried out researches on the utilization of cotton heterosis in succession, and have achieved remarkable results, which have attracted the attention of scientists all over the world. India has bred hybrids that increase yields by 1-2%. Some breeders in the United States believe that major breakthroughs in cotton production over the next decade may be due to heterosis