| 家蚕质型多角体病抗病性的选择方法及效果 |
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| 引用本文： | 段家龙 胡祥珑. 家蚕质型多角体病抗病性的选择方法及效果[J]. 蚕业科学, 1991, 17(2): 80-83 |
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| 作者姓名： | 段家龙 胡祥珑 |
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| 作者单位： | 安徽农学院蚕桑系(段家龙)，安徽农学院蚕桑系(胡祥珑) |
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| 摘 要： | 东34品种经7-8代连续添毒质型多角体(CPB)选择,健蛹率提高17.3—54.5％,大造品种经7—8代连续添毒CPV选择,健蛹率仅提高3.9％-5.3％。隔代添毒CPV区的建蛹率和茧质均高于累代添毒选择区。春季CPV添毒选择浓度可用10~5,(1/2)×10~5,(1/4)×10~5:秋季宜用10~5,10~4,10~3,10~2。CPV添毒选择区的平均茧质成绩接近于对照。
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| 关 键 词： | 家蚕 抗病性 选择方法 选择效果 |
SELECTION METHODOLOGY AND ITS EFFICIENCY FOR IMPROVING RESISTANCE TO CPV IN BOMBYX MORI |
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| Duan Jia-long Hu Xiang-long. SELECTION METHODOLOGY AND ITS EFFICIENCY FOR IMPROVING RESISTANCE TO CPV IN BOMBYX MORI[J]. Acta Sericologica Sinica, 1991, 17(2): 80-83 |
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| Authors: | Duan Jia-long Hu Xiang-long |
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| Abstract: | Three races, Dong34, Dazao, Zhenong 1 were used to do selective experiment of resistance to CPV along with cocoon characters. As a result of 7-8 generation selections with CPV oral infection, the sound pupa ratio of Dong34 was 17. 3-54. 5% higher than that of the control, but for Dazao, it increased only 3. 9-5. 3% under the selective pressure of 105 CPB/ml concentration. Both the sound pupa ratio and the cocoon quality in the interval-generation selection with CPV were higher than those in the successivegeneration selection. The CPV concentration used in spring and autumn can be considered to be 106, 1/2 × 105,1/4 × 105 and 105, 104,103,102 CPB/ml respctively. The average cocoon quality in the resistant selection blocks was almost the same as that in the non-treatments. |
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| Keywords: | Bombyx mori Resistance Selsetion methedology Selection efficiency |
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