Correlation Analysis of Flower Characters of Prunus mume ‘Gongfen’

doi:10.11924/j.issn.1000-6850.casb2023-0210

Abstract

Abstract:

The paper aims to study the overall ornamental features and the interaction degree between flower characters during the flowering period of Prunus mume ‘Gongfen’, and to provide theoretical basis for the scientific management and character evaluation of the flowering period. The flower characters of P. mume ‘Gongfen’ were studied by linear fitting, index variation, R-type clustering, principal component and correlation analysis. In this study, the investigation and correlation analysis of 12 kinds of flowering characters were conducted. The results showed that there was a significant linear correlation between the flower characters, and the best fitting effect was found between petal length and petal width (R²=0.53, Pearson's r=0.73), and the flowering characters had high instability. The number of unblooming, total number of flowers, petal width and pedicel length could be used as reference indexes to judge flower characters. There was a strong correlation among various flower characters, which could regulate flowering characteristics cooperatively.

Key words: Prunus mume ‘Gongfen’, phenotype, flower character, linear fitting, correlation analysis

OUYANG Zilong, JIA Xianglu, LI Chaoqun, YIN Tinghui, REN Luming, GONG Li, XU Ting, TENG Weichao, WEI Miaoqin. Correlation Analysis of Flower Characters of Prunus mume ‘Gongfen’[J]. Chinese Agricultural Science Bulletin, 2024, 40(7): 64-71.

Figures/Tables 7

References 39

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数量性状	花朵直径/mm	花梗长/mm	花枝长/cm	花瓣长/mm	花瓣宽/mm	柱头长/mm	未开数/个	开花数/个	衰败数/个	总花朵数/个	开花/总/%	衰败/总/%
平均值	23.44	5.55	19.65	9.93	8.26	7.52	5.49	6.73	1.91	12.23	56.78	17.38
标准差	3.46	1.34	5.29	1.70	1.43	1.49	2.83	1.95	1.78	3.31	15.01	16.87
极小值	14.79	2.53	9.90	5.99	5.34	4.53	1.00	3.00	0.00	5.00	22.22	0.00
极大值	31.00	12.22	43.60	16.00	13.00	11.00	15.00	11.00	6.00	24.00	88.89	66.67
极差	16.21	9.69	33.70	10.01	7.66	6.47	14.00	8.00	6.00	19.00	66.67	66.67
变异系数/%	14.77	24.19	26.91	17.17	17.25	19.86	51.55	28.94	92.99	27.06	26.43	97.09

数量性状	花朵直径/mm	花梗长/mm	花枝长/cm	花瓣长/mm	花瓣宽/mm	柱头长/mm	未开数/个	开花数/个	衰败数/个	总花朵数/个	开花/总/%	衰败/总/%
平均值	23.44	5.55	19.65	9.93	8.26	7.52	5.49	6.73	1.91	12.23	56.78	17.38
标准差	3.46	1.34	5.29	1.70	1.43	1.49	2.83	1.95	1.78	3.31	15.01	16.87
极小值	14.79	2.53	9.90	5.99	5.34	4.53	1.00	3.00	0.00	5.00	22.22	0.00
极大值	31.00	12.22	43.60	16.00	13.00	11.00	15.00	11.00	6.00	24.00	88.89	66.67
极差	16.21	9.69	33.70	10.01	7.66	6.47	14.00	8.00	6.00	19.00	66.67	66.67
变异系数/%	14.77	24.19	26.91	17.17	17.25	19.86	51.55	28.94	92.99	27.06	26.43	97.09

数量性状	PC1	PC2	PC3	PC4
花朵直径	0.698	-0.129	0.404	0.065
花梗长	0.207	0.017	0.141	0.917
花枝长	0.258	0.611	0.187	-0.197
花瓣长	0.574	-0.337	0.539	-0.155
花瓣宽	0.466	-0.473	0.556	-0.142
柱头长	0.402	-0.444	0.461	-0.001
未开数	0.786	0.520	-0.139	-0.107
开花数	-0.280	0.672	0.548	0.139
衰败数	-0.677	0.365	0.498	-0.102
总花朵数	0.446	0.826	0.230	0.002
开花/总	-0.828	-0.148	0.412	0.123
衰败/总	-0.859	-0.065	0.321	-0.148
特征值	4.081	2.488	1.923	1.007
贡献率/%	34.011	20.732	16.023	8.393
累计贡献率/%	34.011	54.743	70.766	79.159

数量性状	PC1	PC2	PC3	PC4
花朵直径	0.698	-0.129	0.404	0.065
花梗长	0.207	0.017	0.141	0.917
花枝长	0.258	0.611	0.187	-0.197
花瓣长	0.574	-0.337	0.539	-0.155
花瓣宽	0.466	-0.473	0.556	-0.142
柱头长	0.402	-0.444	0.461	-0.001
未开数	0.786	0.520	-0.139	-0.107
开花数	-0.280	0.672	0.548	0.139
衰败数	-0.677	0.365	0.498	-0.102
总花朵数	0.446	0.826	0.230	0.002
开花/总	-0.828	-0.148	0.412	0.123
衰败/总	-0.859	-0.065	0.321	-0.148
特征值	4.081	2.488	1.923	1.007
贡献率/%	34.011	20.732	16.023	8.393
累计贡献率/%	34.011	54.743	70.766	79.159