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选择8个现代低酚陆地棉育种亲本(包括4个高酚棉和4个低酚棉品种),按4×4不完全双列杂交设计,对16个组合的F×进行了双列分析。结果表明,在所研究的10个性状中,子棉产量、皮棉产量和纤维整齐度主要受非加性基因控制,单铃重、衣分、比强度、2.5%跨长和麦克隆值则主要由加性基因控制,衣指由加性和非加性基因共同控制,而子指受环境的影响较大;在大多数性状上,高酚棉亲本的加性遗传方差比低酚棉亲本贡献大,而在2.5%跨长和麦克隆值2个性状上,低酚棉亲本的加性遗传方差起着更重要的作用;中7886是综合性状比较理想的亲本材料,冀合225是较好的高产亲本,冀无252和中无151是较好的优质低酚棉亲本。综合一般配合力和特殊配合力分析结果,组合中7886×冀无252可具较好的育种潜力。
Eight modern low-glycosides cotton cultivars (including four high-phenol cotton and four low-phenol cotton varieties) were selected and analyzed by 4 × 4 incomplete diallel crosses. The results showed that among the ten traits studied, seed cotton yield, lint yield and fiber uniformity were mainly controlled by non-additive genes, boll weight, lint percentage, specific intensity, 2.5% span length and micronaire Which is mainly controlled by the additive gene, the coat finger is jointly controlled by the additive and non-additive genes, while the sub-fingers are greatly influenced by the environment; in most traits, the additive genetic variance of the high-phenolic cotton parents is lower than that of the low phenol cotton The contribution of the parents was large, while the additive genetic variance of low phenolic cotton parents played a more important role in the 2.5% span length and the micronaire value traits. Zhong 7886 was an ideal parent material with comprehensive characters, 225 is a better high-yielding parent. Ji-252 and Zhong-151 are better quality low phenol cotton parents. Combining the results of general combining ability and special combining ability, the combination of 7886 × Ji 252 can have better breeding potential.