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中国农学通报 ›› 2025, Vol. 41 ›› Issue (1): 161-164.doi: 10.11924/j.issn.1000-6850.casb2024-0448

• 水产·渔业 • 上一篇    

中国仙女蛤生长性状的相关性和通径分析

周小文()   

  1. 平潭综合实验区农业农村发展服务中心,福州 350400
  • 收稿日期:2024-07-09 修回日期:2024-10-17 出版日期:2025-01-05 发布日期:2025-01-01
  • 作者简介:

    周小文,男,高级工程师,研究方向:水产养殖与技术推广。通信地址:350400 福建省平潭综合实验区金井湾商务营运中心3号楼5楼,Tel:0591-86163983,E-mail:

  • 基金资助:
    福建省海洋服务与渔业高质量发展专项资金项目“福建省海洋水产种质资源数据库建设”(FJHY-YYKJ-2024-1-13); 福建省省属公益类科研院所基本科研专项“牡蛎幼虫活藻替代饵料的研制”(2022R1013003)

Correlation and Path Analysis of Growth Traits of Callista chinensis

ZHOU Xiaowen()   

  1. Agricultural and Rural Development Service Center of Pingtan Comprehensive Pilot Zone, Fuzhou 350400
  • Received:2024-07-09 Revised:2024-10-17 Published:2025-01-05 Online:2025-01-01

摘要:

为开展中国仙女蛤的人工选育和种质资源保护工作,以在平潭海坛湾随机采集的70枚野生个体为对象,测量其壳长、壳宽、壳高和体重,并进行多元回归分析和通径分析。结果表明,各形态性状间均极显著相关(P<0.01),通过多元回归分析剔除了壳高,建立了壳宽和壳长对体重的最优回归方程。通径分析表明,壳宽和壳长均可对体重产生直接正向效应,壳宽效应大于壳长,壳宽对体重的直接通径系数最大(0.665)。体重的决定系数R2为0.970,大于0.850,可以确定壳宽和壳长是决定仙女蛤体重的主要因素。

关键词: 中国仙女蛤, 形态, 种质资源保护, 多元回归分析, 相关分析, 通径分析

Abstract:

In order to carry out artificial breeding and germplasm resource protection of Callista chinensis, we used correlation analysis and path analysis to evaluate the relationship between quantitative traits and live body weight. 70 wild individuals were sampled randomly in Haitan Bay, Pingtan, Fujian Province. Shell length, shell width, shell height and live body weight were respectively measured. Multiple regression analysis and path analysis were used for investigating the morphological variation. The result showed that there was extremely significant correlation among the 4 traits (P<0.01). Through stepwise multiple regression analysis, shell height was removed, then optimum multiple regression equations were obtained. Path analysis revealed that, the direct effects of morphological parameters on live body weight were in order of shell width>shell length. Shell width had the maximum direct effect on the live body weight with a direct path coefficient of 0.665. The coefficient of determinant (R2) of morphological parameters against the live body weight was 0.970, which was more than 0.850, indicating that shell width and shell length were the major factors associating live body weight.

Key words: Callista chinensis, morphological parameter, germplasm resource protection, multiple regression analysis, correlation analysis, path analysis