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园艺学报 ›› 2001, Vol. 28 ›› Issue (3): 223-228.

• 研究论文 • 上一篇    下一篇

银杏种子数量遗传分析及多性状选择

邢世岩1;张思清2;张友鹏1;孟令国2;张 锐1   

  1. (1 山东农业大学林学院, 泰安271018 ; 2 山东省滕州市林业局, 滕州277500)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-06-25 发布日期:2001-06-25

Quantitative Genetics Analysis and Multiple Character Selection on Ginkgo Seed

Xing Shiyan1, Zhang Zhongqing2, Zhang Youpeng1, Meng Lingguo2, and Zhang Rui1   

  1. (1 Forest Department , Shandong Agricultural University , Tai’an 271018; 2 Shandong Province Tengzhou City Forestry Bureau , Tengzhou 277500)
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-06-25 Published:2001-06-25

摘要: 对中国12 个产地50 个银杏品种主要经济性状进行遗传分析和多性状选择。分析结果表明, 最大单核质量为3. 89 g , 出核率33. 58 % , 出仁率82. 49 %。单核质量遗传力为0. 9759。核形系数和单核质量间的rG 达0. 9986 , 单果质量对单核质量的直接遗传PY·i 达
1. 407。全国12 个种源可以分成4 大类。采用指数选择或直接选择法优化出3 个核用品种。对银杏核用品种良种选择的理论进行了探讨。

关键词: 银杏, 核用品种, 遗传分析, 指数选择

Abstract: China possesses more than 70 % ginkgo resources in the world. The primary problems existing in ginkgo cultivation are : (1) no big-grain and fine nucleus-used cultivars ; (2) no known genetic law of primary characters ginkgo seed. The purposes of this research are to collect 50 nucleusused cultivars from 12 provinces in China , to carry out genetic analysis for economical character and
multiple character selection on ginkgo seed. The results of analysis show that maxmum single nucleus weight , stone mass/ fruit mass ( %) and kernel mass/ stone mass ( %) are 3. 89 g , 33. 58 % and 82. 49 % , respectively. The heritability ( h2) of single nucleus mass is 0. 9759. The genetic correlation coefficient ( rG) between nucleus2shape coefficient and single nucleus mass , and direct genetic path coefficient ( PY·i) of single fruit mass to single stone mass are 0. 9986 and 1. 407 , respectively. Twelve provenances from China are divided into four classes. Three fine nucleus-used cultivars are selected out through index or direct selection methods from fifty nucleus-used cultivars in China. The theory of nucleus2used cultivar selection was studied in this paper.

Key words: Ginkgo biloba L., Nucleus-used cultivars, Genetic analysis, Index selection

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