Analysis and Evaluation of Germplasm Phenotypic Diversity of Erythropalum scandens in Four Regions of China

doi:10.11924/j.issn.1000-6850.casb2023-0601

Abstract

Abstract:

In order to screen out the germplasm types of Erythropalum scandens with strong growth in branches and leaves and excellent characters, this study marked 8 leaf traits and 4 branch traits of 10 germplasm types of E. scandens from Yunnan, Hainan, Guangxi and Guizhou, and explored the phenotypic characteristics and genetic diversity of each germplasm. Finally, systematic cluster analysis was carried out. The results showed as follows. (1) The differences of leaf and branch traits among the germplasm of E. scandens were branch traits> leaf traits, and the variation ranges of leaf and branch were 3.44%-24.15% and 58.33%-108.93%, respectively. However, there was no significant difference between some leaf and branch traits, and the variation degree of traits within the same germplasm was higher than that between different germplasm types. (2) Correlation analysis among traits showed that the correlation between branch traits and leaf traits was close, and most of the indicators were significant or extremely significant, but the correlation between petiole length and leaf thickness and other indicators was not significant. There was a strong correlation between the growth and development of leaves and branches, and the lengthening and thickening of branches were almost synchronized. (3) The 10 germplasm of E. scandens could be divided into 3 groups by systematic clustering. Among them, the germplasm of Yunnan and Guizhou were grouped into the same subgroup due to their close geographical location. (4) The results of fuzzy membership function analysis showed that the comprehensive scores of all kinds of germplasm were: Yunnan 5> Yunnan1> Yunnan2> Ledong Hainan> Yunnan3> Libo Guizhou> Yunnan4> Anlong Guizhou> pseudo E. scandens> E. scandens with red buds. Among them, Yunnan 5 showed the best performance, with large leaves and vigorous branch growth, which was suitable for introduction to Nanning City for cultivation and promotion, followed by Yunnan 1 and Yunnan 2. Pseudo E. scandens and E. scandens with red buds are rare plants with few leaves and slow growth of branches, which still need to be further collected and studied.

Key words: Erythropalum scandens, germplasm, morphological marker, phenotypic diversity, cluster analysis

MA Daocheng, WEI Shengzhu, YANG Youxing, YI Biao, PANG Yanping, MO Yiting, WANG Linghui. Analysis and Evaluation of Germplasm Phenotypic Diversity of Erythropalum scandens in Four Regions of China[J]. Chinese Agricultural Science Bulletin, 2024, 40(19): 24-32.

Figures/Tables 7

References 33

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种质名称	缩写代号	数量/株	种质名称	缩写代号	数量/株
红芽赤苍藤	HY	3	云南3	YN3	8
假赤苍藤	JCCT	4	云南4	YN4	5
海南乐东	HNLD	6	云南5	YN5	6
云南1	YN1	6	贵州荔波	GZLB	7
云南2	YN2	6	贵州安龙	GZAL	6

种质名称	缩写代号	数量/株	种质名称	缩写代号	数量/株
红芽赤苍藤	HY	3	云南3	YN3	8
假赤苍藤	JCCT	4	云南4	YN4	5
海南乐东	HNLD	6	云南5	YN5	6
云南1	YN1	6	贵州荔波	GZLB	7
云南2	YN2	6	贵州安龙	GZAL	6

种质	叶长	最大叶宽	叶中宽	叶柄长	叶厚度	叶形指数	LWR	WWR	枝条数量	节间数	新枝长度总量	新枝粗度
HY	8.74	4.90	4.29	2.84	10.00	11.44	12.25	3.07	173.20	173.21	173.21	173.21
JCCT	18.07	16.54	16.06	12.17	8.95	9.29	8.74	0.94	200.00	200.00	200.00	200.00
HNLD	6.75	6.16	5.80	28.96	10.00	10.72	9.11	2.81	60.60	56.28	60.10	10.53
YN1	9.00	6.89	8.55	27.25	13.64	8.81	9.46	3.91	35.78	28.42	32.07	16.76
YN2	10.02	9.62	9.42	27.41	9.17	7.74	7.95	2.19	99.00	85.69	134.16	19.46
YN3	7.85	7.92	11.34	35.07	4.17	14.24	16.47	4.47	69.43	75.38	94.72	25.07
YN4	11.57	11.26	6.09	46.90	9.17	9.65	10.00	5.55	51.40	72.87	105.14	25.48
YN5	16.38	19.77	18.85	27.01	9.38	14.69	13.49	3.16	74.04	67.90	72.87	10.94
GZLB	5.66	9.87	10.15	7.78	10.00	12.84	15.22	5.13	72.16	74.52	77.88	49.38
GZAL	7.59	2.95	5.80	26.07	9.09	7.81	10.06	3.13	107.91	138.23	139.16	52.48
均值	10.16	9.59	9.63	24.15	9.35	10.72	11.28	3.44	94.35	97.25	108.93	58.33

种质	叶长	最大叶宽	叶中宽	叶柄长	叶厚度	叶形指数	LWR	WWR	枝条数量	节间数	新枝长度总量	新枝粗度
HY	8.74	4.90	4.29	2.84	10.00	11.44	12.25	3.07	173.20	173.21	173.21	173.21
JCCT	18.07	16.54	16.06	12.17	8.95	9.29	8.74	0.94	200.00	200.00	200.00	200.00
HNLD	6.75	6.16	5.80	28.96	10.00	10.72	9.11	2.81	60.60	56.28	60.10	10.53
YN1	9.00	6.89	8.55	27.25	13.64	8.81	9.46	3.91	35.78	28.42	32.07	16.76
YN2	10.02	9.62	9.42	27.41	9.17	7.74	7.95	2.19	99.00	85.69	134.16	19.46
YN3	7.85	7.92	11.34	35.07	4.17	14.24	16.47	4.47	69.43	75.38	94.72	25.07
YN4	11.57	11.26	6.09	46.90	9.17	9.65	10.00	5.55	51.40	72.87	105.14	25.48
YN5	16.38	19.77	18.85	27.01	9.38	14.69	13.49	3.16	74.04	67.90	72.87	10.94
GZLB	5.66	9.87	10.15	7.78	10.00	12.84	15.22	5.13	72.16	74.52	77.88	49.38
GZAL	7.59	2.95	5.80	26.07	9.09	7.81	10.06	3.13	107.91	138.23	139.16	52.48
均值	10.16	9.59	9.63	24.15	9.35	10.72	11.28	3.44	94.35	97.25	108.93	58.33

	X1	X2	X3	X4	X5	X6	X7	X8	X9	X10	X11	X12
X1	1.000
X2	0.355	1.000
X3	0.016	0.879^**	1.000
X4	0.567	0.272	-0.021	1.000
X5	0.206	0.538	0.676^*	-0.166	1.000
X6	0.416	-0.699^*	-0.831^**	0.155	-0.320	1.000
X7	0.521	-0.576	-0.833^**	0.254	-0.399	0.954^**	1.000
X8	0.600	-0.109	-0.563	0.489	-0.454	0.549	0.767^**	1.000
X9	0.806^**	0.025	-0.324	0.560	-0.031	0.570	0.669^*	0.673^*	1.000
X10	0.689^*	-0.157	-0.474	0.476	-0.111	0.656^*	0.746^*	0.694^*	0.912^**	1.000
X11	0.682^*	-0.138	-0.452	0.593	-0.092	0.642^*	0.724^*	0.688^*	0.871^**	0.978^**	1.000
X12	0.689^*	-0.265	-0.500	0.609	-0.361	0.765^*	0.776^**	0.600	0.672^*	0.714^*	0.743^*	1.000