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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (9): 82-87.doi: 10.11924/j.issn.1000-6850.2014-2142

所属专题： 资源与环境； 油料作物

• 农学 农业基础科学 • 上一篇    下一篇

花生种质资源主要数量性状的遗传多样性和相关性分析

杨秀丽1,宁东贤1,武银玉1,刘 静2   

  1. (1山西省农业科学院小麦研究所,山西临汾 041000；2山西省农业科学院经济作物研究所,山西汾阳 032200）
  • 收稿日期:2014-08-06 修回日期:2015-03-10 接受日期:2014-09-30 出版日期:2015-04-07 发布日期:2015-04-07
  • 通讯作者: 杨秀丽
  • 基金资助:
    山西省农业科学院育种基础项目“高产优质花生种质资源创制及应用研究”(yyzjc1307)；山西省农业科学院育种工程项目“高产优质抗病花生新品种选育”(11yzgc059)。

Genetic Diversity and Correlation Analysis of Main Quantitative Character of Peanut Germplasm Resources

of Peanut Germplasm Resources   

  1. Yang Xiuli1, Ning Dongxian1, Wu Yinyu1, Liu Jing2(1Institute of Wheat, Shanxi Academy of Agricultural Sciences, Linfen Shanxi 041000;2Institute of Industrial Crops, Shanxi Academy of Agricultural Sciences, Fenyang Shanxi 032200)
  • Received:2014-08-06 Revised:2015-03-10 Accepted:2014-09-30 Online:2015-04-07 Published:2015-04-07

摘要： 为了有效地利用花生种质资源，给新品种选育提供有力的数据支持，以46份花生种质资源为试验材料，对主茎高、主茎节数、第一侧枝长、第一分枝数、总分枝数、有效枝长等主要数量性状进行了遗传多样性分析和相关性分析。结果表明：花生种质在植物学性状上拥有丰富的遗传多样性，变异系数在11.19%~82.41%之间，多样性指数在0.3095~2.0468之间，平均数为1.6805，但两者的变化趋势相反。从相关分析结果来看，主茎高和主茎节数、侧枝长、单株生产力，第二次分枝数与总分枝数，单株结果数与单株生产力，叶片长与叶片宽，荚果长与荚果宽、种子长、百果重，荚果宽与种子长、种子宽、百果重，种子长与种子宽、百果重，种子宽与百果重，百果重与单株生产力，它们之间呈显著或极显著正相关，测得相关性极显著的一对表型性状中的一个就可以描述另一个性状。

关键词: 非农就业, 非农就业

Abstract: In order to efficiently use peanut germplasm resources and provide a powerful data support to breeding program, genetic diversity and relationship of main quantitative characters were assessed with a collection of 46 peanut gemrplasm. The results showed that the peanut resources in 21 traits had significant genetic differentiation and diversity. The variant coefficient varied from 11.19% to 82.41% and diversity index varied from 0.3095 to 2.0468 with an average of 1.6805. The trends of change were on the contrary between variant coefficient and diversity indices. Correlation analysis indicated that there was significantly positive correlation or extremely significant positive correlation between height of main stem and nodes of main stem, branch length, pod yield of one plant; the second branches and the total braches; pod number of one plant and pod yield of one plant; leaflet length and leaflet width; pod length and pod width, seed length, 100-pod weight; pod width and seed length, seed width, 100-pod weight; seed length and seed width, 100-pod weight; seed width and 100-pod weight, 100-pod weight and pod yield of one plant. These strong correlations can be used to improve the efficiency in germplasm evaluation.