| 烤烟主要数量性状的杂种优势和配合力分析 |
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| 引用本文： | 张晨东.烤烟主要数量性状的杂种优势和配合力分析[J].安徽农业科学,2012(27):13288-13290,13293. |
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| 作者姓名： | 张晨东 |
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| 作者单位： | 云南省烟草农业科学研究院,云南玉溪,653100 |
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| 基金项目： | 中国烟叶公司资助项目(Ts-03-20110022) |
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| 摘 要： | 目的]为合理选择杂交亲本,高效利用烤烟的杂种优势。方法]按GriffingⅣ双列杂交方式对10个烤烟品种的主要数量性状进行配合力和杂种优势测定及分析。结果]供试品种株高、叶数、叶长、节距、产量这5个性状的一般配合力方差和特殊配合力方差都达到极显著差异,各性状一般配合力方差都大于特殊配合力方差;有50%的杂交种F1在产量、产值和均价上超过高值亲本。结论]控制烤烟主要数量性状的基因效应以加性为主,但一些性状也存在明显的非加性效应。使用不同的杂交亲本可以获得不同的杂种优势表现,在烤烟重要的经济性状上获得较高比例的具超亲优势的杂交种。
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| 关 键 词： | 数量性状 经济性状 杂种优势 配合力 |
Analysis on the Heterosis and Combining Ability of Major Quantitative Traits in Flue-cured Tobacco |
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| ZHANG Chen-dong.Analysis on the Heterosis and Combining Ability of Major Quantitative Traits in Flue-cured Tobacco[J].Journal of Anhui Agricultural Sciences,2012(27):13288-13290,13293. |
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| Authors: | ZHANG Chen-dong |
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| Institution: | ZHANG Chen-dong(Yunnan Academy of Tobacco Agricultural Science Research,Yuxi,Yunnan 653100) |
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| Abstract: | Objective] To reasonably select hybrid parents and efficiently use the heterosis of tobacco.Method] 10 flue-cured tobacco varieties were used to make crosses by Griffing Ⅳ design,of which combining abilities of major quantitative traits and heterosis were estimated.Result] The variances of GCA and SCA of plant height,leaf number,leaf length,internode length and yield were both significantly different at 0.01 level,and the GCA variances of all traits were greater than the SCA variances.Heterosis over higher-parent for yield,production value and average price was found in 50% cross F1.Conclusion] The genes controlled major quantitative traits in flue-cured tobacco showed additive effect mostly,but non-additive effect appeared obviously in some traits.Heterosis may vary depends on different cross parents,so obtaining higher percentage of hybrids with heterosis over higher-parent in the important economic characters of flue-cured tobacco was absolutely possible. |
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| Keywords: | Quantitative trait Economic character Heterosis Combining ability |
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