新疆海岛棉品种的亲缘关系和利用潜力研究

以MINQUE(1)统计方法,利用P=μ+G+ε模型对23个已定名的新疆海岛棉品种的产量及品质等性状的2年资料进行了遗传及聚类分析；采用加性-显性遗传模型对6个定名品种间的30个F1品质性状进行了方差分析.结果表明,23个品种的纤维长度、比强度、整齐度、反射率、黄度及单株皮棉产量、铃数、衣分存在极显著的基因型差异；比新...

Study on Affinity and Utilization Potentiality on Certificated Varieties of G.barbadense in Xinjiang

The genetic and cluster of yield and fiber traits in two years of 23 certificated varieties of G. barbadense in Xinjiang were analyzed. Seven fiber traits of 6 parents and their 30 F₁ were analyzed for their additive and dominance effects by MINQUE(1) approaches. The results indicated that there were highly significant gene type effects on fiber length, strength, uniformity, reflectance degree, yellowness, lint yield per plant, boll number per plant, and lint percentage. Most of those varieties released after Xinhai 16 had positive significant gene type effects on fiber traits, while as Xinhai 3, 12, 28 had positive significant genotype effects on yield traits. On the distance of 1.99, Xinhai 6, 8, 10 were clustered into a category, Xinhai 16, 24 were clustered into another category, while Junhai 1 formed one category itself. On the distance of 5.98, Xinhai 26 formed one category itself, other varieties formed another category. On the distance of 9.36, all varieties merged into same category. There was still significant improved potential on hybrid progeny of those varieties having no significant genotype effects on certain traits.