摘要： 以陆地棉早熟品种百棉2号和遗传标准系TM-1形成的P₁、P₂、F₁、B₁、B₂和F₂6个世代群体为材料，分别在我国的黄河流域棉区(环境Ⅰ)和北疆早熟棉区(环境Ⅱ)2个生态环境下，研究了陆地棉生育期及产量性状的主基因+多基因遗传规律。结果表明，除衣分在环境Ⅱ中未检测到主基因外，其他性状在2个环境中均检测到主基因的存在。生育期、皮棉产量、铃重和衣指在2个环境中的最适模型均相同，分别为E-0、D-2、E-3和B-1；籽棉产量、衣分、单株铃数和籽指在2个环境中的最适模型不同。各性状在2个环境中的遗传方式不完全一致，生育期、单株铃数、衣指和籽指均以主基因遗传为主或属典型的主基因遗传；籽棉产量、皮棉产量、铃重、衣分分别以主基因遗传为主或以多基因遗传为主。

关键词: 生态环境, 陆地棉, 生育期, 产量性状, 主基因+多基因

Abstract: The major gene plus polygene genetic rules of growth period and yield traits were analyzed using sixgenerations of earliness variety Baimian 2(Pz)and genetic standard line TM(P,)in upland cotton(‘.hirsutumL.)，and their F₁B₁B₂and F₂grown in Yellow River Valley cotton area (environment j) and early-mature cotton ar-ea of North Xinjiang (environment ) in China. The results were as follows:Major genes for all traits were always de-tected in two environments except lint percentage，the ones for which were not detected in environment.

Key words: Ecological environment, Upland cotton, Growth period, Yield traits, Major enelus polyene

中图分类号: 

• S562.03