Correlation and Path Analysis of Growth Traits of Callista chinensis

doi:10.11924/j.issn.1000-6850.casb2024-0448

Abstract

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

ZHOU Xiaowen. Correlation and Path Analysis of Growth Traits of Callista chinensis[J]. Chinese Agricultural Science Bulletin, 2025, 41(1): 161-164.

Figures/Tables 7

References 27

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性状	均值±标准差	变异系数/%	K-S值	P值
L	(25.19±3.29) mm	13.06	0.115	0.110
W	(10.45±1.71) mm	16.36	0.181	0.086
H	(18.43±2.69) mm	14.60	0.063	0.200
BW	(3.63±1.60) g	44.08	0.135	0.998

性状	均值±标准差	变异系数/%	K-S值	P值
L	(25.19±3.29) mm	13.06	0.115	0.110
W	(10.45±1.71) mm	16.36	0.181	0.086
H	(18.43±2.69) mm	14.60	0.063	0.200
BW	(3.63±1.60) g	44.08	0.135	0.998

	L	W	H	BW
L	1
W	0.971^**	1
H	0.946^**	0.925^**	1
BW	0.972^**	0.982^**	0.934^**	1

	L	W	H	BW
L	1
W	0.971^**	1
H	0.946^**	0.925^**	1
BW	0.972^**	0.982^**	0.934^**	1

生长性状	偏回归系数	标准误	t检验值	P值
L	0.116	0.049	2.342	0.022
W	0.611	0.081	7.567	0.000
H	0.061	0.038	1.594	0.116
常数	-6.794	0.316	-21.486	0.000