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用3个美国陆地棉品种为母本与2个中国品种配制6个杂交组合。5个亲本与其6个杂交组合F2和F3种植在美国密西西比州立大学农业试验站。利用加性 显性 加×加互作遗传模型(ADAA)进行数据分析。结果表明,除了加性和显性效应外,加×加互作效应控制大多数农艺性状和纤维性状。两个中国品种均可用于纤维麦克隆值的改良。品种CR110及Deltapine90(DP90)在纤维长度和强度方面具有较好的一般配合力。与品种DP90的杂交组合可以在较晚世代用于产量的改良。杂交组合Stoneville474(ST474)×CR110可用于在早期提高皮棉产量。除ST474×CR110之外,其它各组合均具有产量改良的潜力。组合Sure Grow747(SG747)×86 1在早期和晚期均比其它组合有较高的纤维强度。考虑到皮棉和纤维品质的基因型值,组合SG747×86 1可用于提高早期和晚期产量的改良且有好的纤维品质。
Six crosses were made from three Upland cotton varieties and two Chinese cultivars. Five parents and their six crosses, F2 and F3, were planted at the Mississippi State University Agricultural Experiment Station. Data were analyzed using additive dominance plus × additive interaction genetic model (ADAA). The results showed that in addition to additive and dominance effects, the additive plus additive effect controlled most agronomic traits and fiber traits. Both Chinese varieties can be used to improve the value of fiber micronaire. Varieties CR110 and Deltapine90 (DP90) have better general combining ability in terms of fiber length and strength. The crossover combination with variety DP90 can be used for yield improvement in later generations. The hybrid combination Stoneville474 (ST474) × CR110 can be used to increase lint yield in the early stages. All combinations except ST474 × CR110 have the potential for yield improvement. Combination Sure Grow747 (SG747) × 86 1 has higher fiber strength than the other combinations in both early and late stages. Considering the genotype values of lint and fiber quality, the combination SG747 × 86 1 can be used to improve the improved and good fiber quality of early and late yield.