我国第一个用海岛棉和陆地棉远缘杂交的全新优质高产多抗棉花新品系─—石远３２１常规棉花多采用品种间杂交官成，由于难以输入新的遗传物质，因而这种近亲交配品种，在性状上没有大的突破。中国科学院遗传所和石家在农村院合作奋斗２０年，采用全新方法，把海岛棉和多年... The first new high-yielding and high-yielding cotton line with high cotton yield and long-distance hybridization with upland cotton in China, Shi-Yuan 321, uses more varieties of inter-specific hybrids. Due to the difficulty in inputting new genetic material, this inbreeding Variety, there is no major breakthrough in traits. Institute of Genetics and Chinese Academy of Sciences in rural homes for 20 years of cooperation, a new approach to the island cotton and years ...