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本文依据最小二乘原理,求得多元回归方程中的各偏回归系数,进而给出一个相当于综合育种值的指数,即Ⅰ=-2.74H+34.3S-7.25B+3.66W+61.21T。相关分析表明,株高与褐班病病情指数以及病情指数与含糖量之间的相关性均达到了极显著水准(0.01),该指数可作为人工选择的参考指际,或在实践中作为评价亲本优劣的综合指标.
In this paper, according to the principle of least squares, we get the partial regression coefficients in multivariate regression equation, and then give an index that is equivalent to the integrated breeding value, that is, Ⅰ = -2.74H + 34.3S-7.25B + 3.66W + 61.21T. Correlation analysis showed that the correlation between plant height and brown squash disease index and disease index and sugar content reached an extremely significant level (0.01), the index can be used as a reference for artificial selection, or in practice as Evaluation of the advantages and disadvantages of the parent comprehensive index.