| 玫瑰切花产量性状遗传参数和选择效率的初步研究 |
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| 引用本文： | 李艳艳,丰震,赵兰勇,戴庆敏,张宝,张照坤.玫瑰切花产量性状遗传参数和选择效率的初步研究[J].园艺学报,2007,34(4):955-958. |
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| 作者姓名： | 李艳艳 丰震 赵兰勇 戴庆敏 张宝 张照坤 |
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| 作者单位： | (山东农业大学林学院, 山东泰安271018) |
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| 基金项目： | 山东省农业良种产业化工程项目 |
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| 摘 要： | 对20个玫瑰品种的切花产量及13个数量性状进行了遗传相关、相关遗传力及通径分析等。结果表明: (1) 单株花蕾数、分枝数、第1个花瓣的长、第2个花瓣的长、花蕾长与单株花蕾产量的遗传相关显著; (2) 单株花蕾数、第2个花瓣的长、分枝数和花蕾长的相关遗传力与单株花蕾产量的遗传力接近, 相关选择效率接近对单株花蕾产量的直接选择效率; (3) 根据决策系数, 花蕾长、单株花蕾数、第2个花瓣的长、分枝数、单蕾花瓣鲜重对单株产量有促进作用。
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| 关 键 词： | 玫瑰 遗传相关 相关遗传力 通径分析 决策系数 |
| 文章编号： | 0513-353X（2007）04-0955-04 |
| 修稿时间： | 2007-01-25 |
A Preliminary Study on Genetic Parameters and Selection Efficiency of Yield Traits of Fresh Floral Bud in Rosa rugosa |
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| LI Yan-yan,FENG Zhen,ZHAO Lan-yong,DAI Qing-min,ZHANG Bao,ZHANG Zhao-kun.A Preliminary Study on Genetic Parameters and Selection Efficiency of Yield Traits of Fresh Floral Bud in Rosa rugosa[J].Acta Horticulturae Sinica,2007,34(4):955-958. |
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| Authors: | LI Yan-yan FENG Zhen ZHAO Lan-yong DAI Qing-min ZHANG Bao ZHANG Zhao-kun |
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| Institution: | (College of Forestry, Shandong Agricultural University, Shandong, Tai'an 271018, China) |
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| Abstract: | The floral bud yield/plant (y) and 13 quantitative traits of 20 Rosa rugosa cultivars were investigated. Analysis of genetic correlation, correlative heritability (hxy) and path analysis were carried out. The results indicated: (1) the number of floral bud/plant (x8), the number of branches (x13), the length of the first petal (x3), the length of the second petal (x5), the length of floral bud (x1) had significant genetic correlation with y; (2) hxy of x8, x5, x13 and x1 related to y were higher, respectively, and were close to heritability (h2) of y. The efficiency of correlation selection of these traits would not be much lower than direct selection of y; (3) x1, x8, x5,x13, the fresh mass of pedals/floral bud (x9) played an important positive role in improving y according to decision coefficient. |
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| Keywords: | Rosa rugosa Genetic correlation Correlative heritability Path analysis Decision coefficient |
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