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轮回选择在大豆育种的应用有过一些报告,主要着重在改进产量、蛋白质含量、油分含量以及抗缺铁黄化等性状。大多数的研究侧重在性状平均数的改变,并均用一元分析方法(Fehr and Ortiz 1975a;Kenworthy and Brim 1979;Miller and Fehr1979;Brim and Burton 1979;Burton and Brim 1981;Prohaska and Fehr1981),盖钧镒与Fehr(1984)分析了Sumarno和Fehr(1981、1982)的资料,将早、中、晚三组轮回选择材料做合并分析,研究了主要农艺性状平均数向量及变异度(协方差矩阵)的反应。本文进一步研究产量轮回选择下主要农艺性状间相关关系的反应和遗传型协方差矩阵的主成份与主向量的反应。
There have been some reports on the application of cycle selection in soybean breeding, with emphasis on improving yield, protein content, oil content, and resistance to iron deficiency and yellowing. Most of the studies focused on changes in the average number of traits, all using univariate analysis (Fehr and Ortiz 1975a; Kenworthy and Brim 1979; Miller and Fehr 1979; Brim and Burton 1979; Burton and Brim 1981; Prohaska and Fehr 1981)镒 and Fehr (1984) analyzed the data of Sumarno and Fehr (1981, 1982), and combined the early, middle and late stages of recycle selection materials to study the average vector of major agronomic traits and the variance (covariance matrix) Reaction. In this paper, we further study the response of the correlation between major agronomic traits and the reaction of the principal components and the dominant vectors of the genetic covariance matrix.