棉花种间杂交新品种秦远4号的选育

Breeding for New Interspecific Hybridization Variety of Qinyuan 4 in Gossypium

采用棉属种间杂交新方案 ,获得陆地棉×斯特提棉可育杂种。经 2次回交后 ,在枯黄萎病圃稳定性状 ,定向培育 ,人工选择 ,首次育成了丰产、优质、抗病、抗旱、抗盐碱的棉花种间杂交新品种秦远 4号和一批新种质。秦远 4号创皮棉 3 897kg/hm2

Fertile hybrids of G.hirsutum×G.sturtianum were obtained by a new technique of interspecific hybridization and were first bred for new cotton variety of Qinyuan 4 through interspecific hybrids were stablized after two times backcross,selection in the cotton wilt land. The variety had the characteristics of high yield,good fibre quality,multi adversity resistance,The unit yield of Qinyuan 4 was 3 897 kg/hm 2 and was the highest in the world.