| 菊花观赏性状的配合力分析 |
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| 引用本文： | 张飞,房伟民,陈发棣,陈素梅.菊花观赏性状的配合力分析[J].园艺学报,2010,37(4):589-596. |
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| 作者姓名： | 张飞 房伟民 陈发棣 陈素梅 |
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| 作者单位： | （南京农业大学园艺学院，南京 210095） |
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| 基金项目： | 国家自然科学基金，农业部'948'滚动项目，江苏省科技成果转化专项基金，江苏省科技攻关项目 |
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| 摘 要： | 选用3个切花菊品种为母本，4个盆栽小菊为父本，以3 × 4不完全双列杂交（NC II）设计衍生的12个家系实生苗为材料，估算了菊花（Dendranthema × grandiflorum）7个观赏性状的配合力和群体遗传参数。结果表明：（1）花径、舌状花数和舌状花长主要由加性基因效应控制，株高和叶长主要由非加性基因效应控制，叶宽和舌状花宽可能由加性和非加性两种基因效应共同控制。（2）‘早意红’在7个观赏性状上均具有正向的一般配合力（GCA）效应，综合表现较好；在培育重瓣性高的品种时，‘Herby’ 可以作为重要亲本；‘Herby’ב玉满堂’，‘青心红’ב早意红’和‘红雀舌’ב03-11-2’杂交组合在大部分性状上具有正向的特殊配合力（SCA）效应，杂种后代综合表现较好。（3）群体配合力方差及其对杂种贡献率表明，除舌状花宽外，其他6个观赏性状具有不同程度的母本效应；7个观赏性状广义遗传力（h2B）差异较大，其中舌状花宽最小，为59.56%，舌状花数最大，达80.40%；除舌状花数的狭义遗传力（h2N）达到80.40%外，其他6个性状的低于50%，说明舌状花数的遗传稳定性高，早期世代时应增加选择压。
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| 关 键 词： | 菊花 配合力 遗传力 不完全双列杂交 观赏性状 |
| 收稿时间： | 2009-09-26 |
Combining Ability Analysis on Ornamental Characters of Chrysanthemum |
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| ZHANG Fei,FANG Wei-min,CHEN Fa-di,CHEN Su-mei.Combining Ability Analysis on Ornamental Characters of Chrysanthemum[J].Acta Horticulturae Sinica,2010,37(4):589-596. |
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| Authors: | ZHANG Fei FANG Wei-min CHEN Fa-di CHEN Su-mei |
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| Institution: | （College of Horticulture，Nanjing Agricultural University，Nanjing 210095，China） |
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| Abstract: | The combining ability and genetic parameters were estimated for 7 ornamental characters in F1 progenies of 12 cross combinations of chrysanthemum(Dendranthema × grandiflorum)hybridized by using a 3 × 4 incomplete diallel cross design (NC II) with three cut-chrysanthemum cultivars as female parents and four potted chrysanthemum cultivars as male parents. The results showed that: (1) Flower diameter, ray floret number and ray floret length were controlled mainly by additive gene action, while plant height and leaf length were controlled principally by non-additive gene action. In addition, leaf width and ray floret width might be controlled both by additive and non-additive gene action. (2) ' Zaoyihong' had a positive general combining ability (GCA) effect for the 7 ornamental characters involved herein, and' Hereby' could be used as an important parent in hybridization breeding program aiming for preferable double flowers. The three cross combinations, i.e. 'Hereby' × 'Yumantang', 'Qingxinhong' × 'Zaoyihong' and 'Hongqueshe' × '03-11-2', performed quite well special combining ability (SCA) regarding most of the 7 ornamental characters. (3) Variance of population combining ability and its contribution to hybrid progenies suggested that there was a maternal heredity effect for all the ornamental characters studied except ray floret width. The heritability in broad sense (hB2) of the 7 characters ranged from 59.56% (ray floret width) to 80.40% (ray floret number) . The heritability in narrow sense (hN2) were lower than 50% except ray floret number amounting to 80.40%. These indicating that ray floret number belonged to high heritability characters and selection pressure should be increased for this character in earlier selection. |
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| Keywords: | chrysanthemum combining ability heritability incomplete diallel cross ornamental character |
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