| 家蚕杂交组合数量性状预测方法的研究 |
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| 引用本文： | 孟智启,何克荣,夏建国.家蚕杂交组合数量性状预测方法的研究[J].蚕业科学,1985(3). |
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| 作者姓名： | 孟智启 何克荣 夏建国 |
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| 作者单位： | 浙江省农业科学院蚕桑研究所
(孟智启，何克荣)，浙江省农业科学院蚕桑研究所(夏建国) |
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| 摘 要： | 选择优良的杂交组合,是家蚕新品种选育的关键环节.为了探求优良杂交组合数量性状的预测方法.通过1982、1983年的遗传试验查明:以中亲值作为X变因,代入一元回归预测式,其预测结果不尽正确.以中亲值和杂种优势率作为X变因.建立二元回归预测式,其预测值和实际值离差很小,达到预测的实用要求.遗传距离和杂种优势在某些性状间成高度正相关,但能否取代杂种优势率,作为X变因进行预测尚有待于进一步探讨.
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| 关 键 词： | 家蚕 数量遗传 |
Studies on the forecasting method for quantitative characters of F_1 hybrid in the silkworm, Bombyx mori |
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| Meng Zhiqi.Studies on the forecasting method for quantitative characters of F_1 hybrid in the silkworm, Bombyx mori[J].Acta Sericologica Sinica,1985(3). |
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| Authors: | Meng Zhiqi |
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| Abstract: | Experiments on quantitative inheritance were carried out in order to investigate a predictive model on the result of optimum cross-combination in 1982 and 1983. It was found that a linear regression equation in which the variable was represented by median parent-value could not predicate the result correctly. So a multiple regression . equation has been established by means of two variables, the median parent-value and the hybrid vigor ratio. This equation for the prediction can be used in pratice with less deviation. |
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| Keywords: | Silkworm Quantitative inheritance |
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