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根据加性-显性与环境互作的遗传模型,采用MINQUE(1)方法分析了陆地棉10个亲本和20个F1和F2皮棉产量、单株铃数、单铃重、衣分和前期收花率等产量性状的两年试验资料.利用亲本和F1的资料预测了F2基因型值和杂种优势及与环境的互作.结果表明,F2皮棉产量、前期收花率、单株铃数和单铃重的群体平均优势分别为14%、16%、10%和3%.F2皮棉产量、前期收花率、衣分的群体超亲优势分别为5%、8%和-6%.F2衣分和单铃重杂种优势与环境互作较小.F2皮棉产量、单株铃数和前期收花率杂种优势与环境互作较大.分析了组合在不同方面的稳定性表现.比较了利用亲本和F1与用亲本、F1和F2资料对F2产量性状在不同年份中遗传表现的预测结果.
According to the genetic model of additive-dominance and environmental interaction, the yield and boll number per plant, boll number per plant, boll weight, lint percentage and pre-harvest of 10 cotton cultivars and 20 F1 and F2 lint of upland cotton were analyzed by MINQUE (1) Flow rate and other yield characteristics of two years of experimental data. The parents and F1 data were used to predict F2 genotype values and heterosis and their interactions with the environment. The results showed that the average yield of F2 lint yield, pre-harvest rate, boll number and boll weight were 14%, 16%, 10% and 3% respectively. F2 lint yield, pre-harvest rate, clothing sub-groups of super-parents were 5%, 8% and -6%. F2 clones and single boll weight heterosis and environment interaction is small. F2 lint yield, number of bolls per plant and the early yield-closing heterosis and environment interaction. The stability of the combination in different aspects is analyzed. The results of predicting the genetic performance of F2 traits in different years by using parents and F1 and parents, F1 and F2 were compared.