中国海洋大学学报（自然科学版）2017，Vol.47Issue(12)：46-52,7.DOI:10.16441/j.cnki.hdxb.20170001
长牡蛎壳橙品系形态性状与体质量的相关及通径分析
Multiple Regression and Path Analysis of Morphological and Weight Traits of Pacific Oyster (Crassostrea gigas) Orange-Shell Strain
摘要
Abstract
To evaluate the effect of shell morphological traits on weight traits in the orange-shell strain of Pacific oyster Crassostrea gigas,shell height (XH),shell length (XL),shell width (Xw),live body weight (YL) and soft tissue weight (Ys) were measured for 144 individuals of two-year-old orange-shell strain of Pacific oyster.Morphological traits (XH,XL and Xw) were used as independent variables and weight traits (YL,Ys) as dependent variables for path coefficient and multiple regression analyses.Correlation indices showed that the direct effects of correlation coefficient between each shell morphological traits (XH,XLand Xw) and weight traits (YL and Ys) were all significantly different (P＜0.01).In path analysis,the direct effects of the shell morphological traits on live body weight were in order of shell height (0.477) ＞ shell length (0.336) ＞ shell width (0.326).Shell height had the maximum direct effect (0.228) on the live body weight,and was the key influencing factor.However,the correlation indices (R2) of morphological traits against the edible tissue weight was less than 0.85,indicating that some other factors might associate with the edible tissue weight.The optimum multiple regression equations were also obtained through stepwise multiple regression analysis.关键词
长牡蛎/壳橙品系/壳形态性状/体质量性状/相关分析/通径分析/多元回归分析Key words
Crassostrea gigas/orange-shell strain/morphological trait/weight trait/correlation analysis/path analysis/multiple regression analysis分类
农业科技引用本文复制引用
韩自强,李琪..长牡蛎壳橙品系形态性状与体质量的相关及通径分析[J].中国海洋大学学报（自然科学版）,2017,47(12):46-52,7.基金项目
泰山学者种业计划专家项目 （）
农业科技成果转化资金项目(2014GB2B020029) （2014GB2B020029）
山东省科技发展计划项目(2014GHY115002) （2014GHY115002）
鳌山科技创新计划项目(2015ASKJ02)资助 （2015ASKJ02）
Supported by Taishan Scholar Seed Industry Experts Project （）
Agriculture Science Technology Achievement Transformation Fund (2014GB2B020029) （2014GB2B020029）
Science and Technology Development Project of Shandong Province (2014GHY115002) （2014GHY115002）
Aoshan Science and Technology Innovation Program (2015ASKJ02) （2015ASKJ02）
