Genetic diversity analysis and core collection construction of ginger (Zingiber officinale Rosc.) germplasm accessions

doi:10.3969/j.issn.1004-1524.20240717

Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (6): 1233-1243.DOI: 10.3969/j.issn.1004-1524.20240717

• Horticultural Science • Previous Articles Next Articles

Genetic diversity analysis and core collection construction of ginger (Zingiber officinale Rosc.) germplasm accessions

HONG Xia^a(), LU Jilai^b, QI Huijuan^c, CHEN Xiaoshang^b^,^*()

Institute of Biotechnology; b. Institute of Vegetable Research; c. Division of Scientific Research Management and Development, Taizhou Academy of Agricultural Sciences, Taizhou 318014, Zhejiang, China

Received:2024-08-07 Online:2025-06-25 Published:2025-07-08

Abstract

Abstract:

To explore the genetic relationships of different ginger (Zingiber officinale Rosc.) germplasm accessions in Zhejiang Province to enhance their conservation, utilization, and provide foundational materials for breeding programs, the genetic diversity of 30 phenotypic traits for 80 ginger germplasm accessions were analyzed by correlation analysis, principal component analysis(PCA) and cluster analysis. Moreover, the core collection was constructed. The results showed that the genetic diversity index of 15 qualitative traits ranged from 0 to 0.85, with leaf color exhibiting the highest diversity. For 15 quantitative traits, the coefficient of variation (CV) ranged from 7.84% to 44.56%, with branch number showing the highest CV. Correlation analysis revealed that rhizome weight per plant showed highly significant positive correlation (P<0.01) with plant height, plant width, leaf length, leaf width, number of leaves on main stem, aboveground stem height, aboveground stem diameter, sub-rhizome length, and node number of sub-rhizomes, indicating that germplasm accessions with strong growth had higher yield. PCA extracted six principal components with a cumulative contribution rate of 62.423%. Cluster analysis classified the 80 accessions into six groups, with Groups Ⅱ and Ⅲ exhibiting taller plants, vigorous growth, and higher yields. A core collection comprising 36 superior accessions (45% of the total) was established through systematic stepwise clustering and priority sampling strategies. t-test confirmed that this core collection effectively represents the genetic variation of the original germplasms.

Key words: ginger, genetic diversity, phenotypic trait, core collection

CLC Number:

S632.5

HONG Xia, LU Jilai, QI Huijuan, CHEN Xiaoshang. Genetic diversity analysis and core collection construction of ginger (Zingiber officinale Rosc.) germplasm accessions[J]. Acta Agriculturae Zhejiangensis, 2025, 37(6): 1233-1243.

Figures/Tables 8

References 25

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编号 No.	名称 Name	来源地 Origin	编号 No.	名称 Name	来源地 Origin	编号 No.	名称 Name	来源地 Origin
1	老种生姜 Old Species Ginger	浙江东阳市 Dongyang City, Zhejiang	28	姜 Ginger	浙江武义县 Wuyi County, Zhejiang	55	大粒姜 Large Grain Ginger	浙江临海尤溪镇 Youxi Town, Linhai City, Zhejiang
2	生姜 Ginger	浙江宁海县 Ninghai County, Zhejiang	29	生姜 Ginger	浙江瑞安市 Rui’an City, Zhejiang	56	土姜 Native Ginger	浙江仙居埠头镇 Butou Town, Xianju County, Zhejiang
3	黄姜 Yellow Ginger	浙江新昌县 Xinchang County, Zhejiang	30	小连姜 Xiaolian Ginger	浙江黄岩区 Huangyan District, Zhejiang	57	姜 Ginger	浙江景宁沙湾镇 Shawan Town, Jingning County, Zhejiang
4	生姜 Ginger	浙江建德市 Jiande City, Zhejiang	31	小连姜 Xiaolian Ginger	浙江仙居县 Xianju County, Zhejiang	58	姜(红头姜) Ginger (Red Head Ginger)	浙江开化县 Kaihua County, Zhejiang
5	姜 Ginger	浙江遂昌县 Suichang County, Zhejiang	32	生姜 Ginger	浙江仙居县 Xianju County, Zhejiang	59	姜 Ginger	浙江临海括苍镇 Kuocang Town, Linhai City, Zhejiang
6	土生姜 Native Ginger	浙江缙云县 Jinyun County, Zhejiang	33	生姜 Ginger	浙江黄岩区 Huangyan District, Zhejiang	60	山地小黄姜 Mountain Small Yellow Ginger	浙江缙云县 Jinyun County, Zhejiang
7	生姜 Ginger	浙江永康市 Yongkang City, Zhejiang	34	生姜 Ginger	浙江奉化区 Fenghua District, Zhejiang	61	姜 Ginger	浙江莲都岩泉街道 Yanquan Subdistrict, Liandu District, Zhejiang
8	小种姜 Small Species Ginger	浙江天台县 Tiantai County, Zhejiang	35	姜 Ginger	浙江乐清市 Yueqing City, Zhejiang	62	小黄姜 Small Yellow Ginger	浙江衢江湖南镇 Hunan Town, Qujiang District, Zhejiang
9	吴山生姜 Wushan Ginger	浙江瑞安市 Rui’an City, Zhejiang	36	姜 Ginger	浙江庆元县 Qingyuan County, Zhejiang	63	小黄姜 Small Yellow Ginger	浙江缙云县 Jinyun County, Zhejiang
10	生姜 Ginger	浙江瑞安市 Rui’an City, Zhejiang	37	赤水垟姜 Chishuiyang Ginger	浙江乐清市 Yueqing City, Zhejiang	64	土姜 Native Ginger	浙江江山市 Jiangshan City, Zhejiang
11	土生姜 Native Ginger	浙江淳安县 Chun’an County, Zhejiang	38	南山姜 Nanshan Ginger	浙江临海杜桥镇 Duqiao Town, Linhai City, Zhejiang	65	小黄姜 Small Yellow Ginger	云南文山市 Wenshan City, Yunnan
12	本地姜 Local Ginger	浙江洞头区 Dongtou District, Zhejiang	39	小粒姜 Small Grain Ginger	浙江临海市 Linhai City, Zhejiang	66	小叶姜 Small Leaf Ginger	浙江三门县 Sanmen County, Zhejiang
13	竹根姜 Bamboo Root Ginger	浙江苍南县 Cangnan County, Zhejiang	40	本地黄姜 Local Yellow Ginger	浙江磐安县 Pan’an County, Zhejiang	67	小黄姜 Small Yellow Ginger	云南文山市 Wenshan City, Yunnan
14	红爪姜 Red Claw Ginger	浙江平湖市 Pinghu City, Zhejiang	41	三都姜 Sandu Ginger	浙江松阳县 Songyang County, Zhejiang	68	小粒姜 Small Grain Ginger	浙江临海江南街道 Jiangnan Subdistrict, Linhai City, Zhejiang
15	三都姜 Sandu Ginger	浙江松阳县 Songyang County, Zhejiang	42	小林黄姜 Xiaolin Yellow Ginger	浙江杭州余杭区 Yuhang District, Hang- zhou City, Zhejiang	69	生姜 Ginger	浙江天台县 Tiantai County, Zhejiang
16	生姜 Ginger	浙江开化县 Kaihua County, Zhejiang	43	泳溪姜 Yongxi Ginger	浙江天台泳溪乡 Yongxi Township, Tiantai County, Zhejiang	70	大姜 Large Ginger	山东青岛市 Qingdao City, Shandong
17	蟠姜 Pan Ginger	浙江开化县 Kaihua County, Zhejiang	44	五指岩姜 Wuzhiyan Ginger	浙江永康五指岩 Wuzhiyan, Yongkang City, Zhejiang	71	小环姜 Small Ring Ginger	海南陵水县 Lingshui County, Hainan
18	野生姜 Wild Ginger	浙江柯城区 Kecheng District, Zhejiang	45	小姜 Small Ginger	浙江临海杜桥镇 Duqiao Town, Linhai City, Zhejiang	72	本地姜 Local Ginger	浙江临海大田街道 Datian Subdistrict, Linhai City, Zhejiang
19	姜 Ginger	浙江衢江区 Qujiang District, Zhejiang	46	黄姜 Yellow Ginger	浙江天台街头镇 Jietou Town, Tiantai County, Zhejiang	73	金昌大姜 Jinchang Large Ginger	山东莱芜区 Laiwu District, Shandong
20	姜 Ginger	浙江衢江区 Qujiang District, Zhejiang	47	湖酋姜 Huqiu Ginger	浙江天台平桥镇 Pingqiao Town, Tiantai County, Zhejiang	74	莱芜小姜 Laiwu Small Ginger	山东莱芜市 Laiwu City, Shandong
21	土生姜 Native Ginger	浙江武义县 Wuyi County, Zhejiang	48	姜 Ginger	浙江莲都区 Liandu District, Zhejiang	75	辐育一号 Fuyu No.1	山东莱芜市 Laiwu City, Shandong
22	鸡爪姜 Chicken Claw Ginger	浙江磐安县 Pan’an County, Zhejiang	49	生姜 Ginger	浙江椒江三甲街道 Sanjia Subdistrict, Jiao- jiang District, Zhejiang	76	娃娃姜 Baby Ginger	山东莱芜市 Laiwu City, Shandong
23	生姜 Ginger	浙江庆元县 Qingyuan County, Zhejiang	50	姜 Ginger	浙江椒江三甲街道 Sanjia Subdistrict, Jiao- jiang District, Zhejiang	77	平顶四 Pingdingsi	山东莱芜市 Laiwu City, Shandong
24	姜 Ginger	浙江瓯海区 Ouhai District, Zhejiang	51	生姜 Ginger	浙江龙泉龙南镇 Longnan Town, Long- quan City, Zhejiang	78	莱芜大姜 Laiwu Large Ginger	山东莱芜市 Laiwu City, Shandong
25	姜 Ginger	浙江永嘉县 Yongjia County, Zhejiang	52	沈村姜 Shencun Ginger	浙江莲都岩泉街 Yanquan Street, Liandu District, Zhejiang	79	本地姜 Local Ginger	浙江天台县街头镇 Jietou Town, Tiantai County, Zhejiang
26	姜 Ginger	浙江永嘉县 Yongjia County, Zhejiang	53	姜 Ginger	浙江莲都雅西镇 Yaxi Town, Liandu District, Zhejiang	80	本地姜 Local Ginger	浙江天台县雷锋乡 Leifeng Township, Tiantai County, Zhejiang
27	土姜 Native Ginger	浙江武义县 Wuyi County, Zhejiang	54	本地姜 Local Ginger	浙江黄岩宁溪镇 Ningxi Town, Huang- yan District, Zhejiang

编号 No.	名称 Name	来源地 Origin	编号 No.	名称 Name	来源地 Origin	编号 No.	名称 Name	来源地 Origin
1	老种生姜 Old Species Ginger	浙江东阳市 Dongyang City, Zhejiang	28	姜 Ginger	浙江武义县 Wuyi County, Zhejiang	55	大粒姜 Large Grain Ginger	浙江临海尤溪镇 Youxi Town, Linhai City, Zhejiang
2	生姜 Ginger	浙江宁海县 Ninghai County, Zhejiang	29	生姜 Ginger	浙江瑞安市 Rui’an City, Zhejiang	56	土姜 Native Ginger	浙江仙居埠头镇 Butou Town, Xianju County, Zhejiang
3	黄姜 Yellow Ginger	浙江新昌县 Xinchang County, Zhejiang	30	小连姜 Xiaolian Ginger	浙江黄岩区 Huangyan District, Zhejiang	57	姜 Ginger	浙江景宁沙湾镇 Shawan Town, Jingning County, Zhejiang
4	生姜 Ginger	浙江建德市 Jiande City, Zhejiang	31	小连姜 Xiaolian Ginger	浙江仙居县 Xianju County, Zhejiang	58	姜(红头姜) Ginger (Red Head Ginger)	浙江开化县 Kaihua County, Zhejiang
5	姜 Ginger	浙江遂昌县 Suichang County, Zhejiang	32	生姜 Ginger	浙江仙居县 Xianju County, Zhejiang	59	姜 Ginger	浙江临海括苍镇 Kuocang Town, Linhai City, Zhejiang
6	土生姜 Native Ginger	浙江缙云县 Jinyun County, Zhejiang	33	生姜 Ginger	浙江黄岩区 Huangyan District, Zhejiang	60	山地小黄姜 Mountain Small Yellow Ginger	浙江缙云县 Jinyun County, Zhejiang
7	生姜 Ginger	浙江永康市 Yongkang City, Zhejiang	34	生姜 Ginger	浙江奉化区 Fenghua District, Zhejiang	61	姜 Ginger	浙江莲都岩泉街道 Yanquan Subdistrict, Liandu District, Zhejiang
8	小种姜 Small Species Ginger	浙江天台县 Tiantai County, Zhejiang	35	姜 Ginger	浙江乐清市 Yueqing City, Zhejiang	62	小黄姜 Small Yellow Ginger	浙江衢江湖南镇 Hunan Town, Qujiang District, Zhejiang
9	吴山生姜 Wushan Ginger	浙江瑞安市 Rui’an City, Zhejiang	36	姜 Ginger	浙江庆元县 Qingyuan County, Zhejiang	63	小黄姜 Small Yellow Ginger	浙江缙云县 Jinyun County, Zhejiang
10	生姜 Ginger	浙江瑞安市 Rui’an City, Zhejiang	37	赤水垟姜 Chishuiyang Ginger	浙江乐清市 Yueqing City, Zhejiang	64	土姜 Native Ginger	浙江江山市 Jiangshan City, Zhejiang
11	土生姜 Native Ginger	浙江淳安县 Chun’an County, Zhejiang	38	南山姜 Nanshan Ginger	浙江临海杜桥镇 Duqiao Town, Linhai City, Zhejiang	65	小黄姜 Small Yellow Ginger	云南文山市 Wenshan City, Yunnan
12	本地姜 Local Ginger	浙江洞头区 Dongtou District, Zhejiang	39	小粒姜 Small Grain Ginger	浙江临海市 Linhai City, Zhejiang	66	小叶姜 Small Leaf Ginger	浙江三门县 Sanmen County, Zhejiang
13	竹根姜 Bamboo Root Ginger	浙江苍南县 Cangnan County, Zhejiang	40	本地黄姜 Local Yellow Ginger	浙江磐安县 Pan’an County, Zhejiang	67	小黄姜 Small Yellow Ginger	云南文山市 Wenshan City, Yunnan
14	红爪姜 Red Claw Ginger	浙江平湖市 Pinghu City, Zhejiang	41	三都姜 Sandu Ginger	浙江松阳县 Songyang County, Zhejiang	68	小粒姜 Small Grain Ginger	浙江临海江南街道 Jiangnan Subdistrict, Linhai City, Zhejiang
15	三都姜 Sandu Ginger	浙江松阳县 Songyang County, Zhejiang	42	小林黄姜 Xiaolin Yellow Ginger	浙江杭州余杭区 Yuhang District, Hang- zhou City, Zhejiang	69	生姜 Ginger	浙江天台县 Tiantai County, Zhejiang
16	生姜 Ginger	浙江开化县 Kaihua County, Zhejiang	43	泳溪姜 Yongxi Ginger	浙江天台泳溪乡 Yongxi Township, Tiantai County, Zhejiang	70	大姜 Large Ginger	山东青岛市 Qingdao City, Shandong
17	蟠姜 Pan Ginger	浙江开化县 Kaihua County, Zhejiang	44	五指岩姜 Wuzhiyan Ginger	浙江永康五指岩 Wuzhiyan, Yongkang City, Zhejiang	71	小环姜 Small Ring Ginger	海南陵水县 Lingshui County, Hainan
18	野生姜 Wild Ginger	浙江柯城区 Kecheng District, Zhejiang	45	小姜 Small Ginger	浙江临海杜桥镇 Duqiao Town, Linhai City, Zhejiang	72	本地姜 Local Ginger	浙江临海大田街道 Datian Subdistrict, Linhai City, Zhejiang
19	姜 Ginger	浙江衢江区 Qujiang District, Zhejiang	46	黄姜 Yellow Ginger	浙江天台街头镇 Jietou Town, Tiantai County, Zhejiang	73	金昌大姜 Jinchang Large Ginger	山东莱芜区 Laiwu District, Shandong
20	姜 Ginger	浙江衢江区 Qujiang District, Zhejiang	47	湖酋姜 Huqiu Ginger	浙江天台平桥镇 Pingqiao Town, Tiantai County, Zhejiang	74	莱芜小姜 Laiwu Small Ginger	山东莱芜市 Laiwu City, Shandong
21	土生姜 Native Ginger	浙江武义县 Wuyi County, Zhejiang	48	姜 Ginger	浙江莲都区 Liandu District, Zhejiang	75	辐育一号 Fuyu No.1	山东莱芜市 Laiwu City, Shandong
22	鸡爪姜 Chicken Claw Ginger	浙江磐安县 Pan’an County, Zhejiang	49	生姜 Ginger	浙江椒江三甲街道 Sanjia Subdistrict, Jiao- jiang District, Zhejiang	76	娃娃姜 Baby Ginger	山东莱芜市 Laiwu City, Shandong
23	生姜 Ginger	浙江庆元县 Qingyuan County, Zhejiang	50	姜 Ginger	浙江椒江三甲街道 Sanjia Subdistrict, Jiao- jiang District, Zhejiang	77	平顶四 Pingdingsi	山东莱芜市 Laiwu City, Shandong
24	姜 Ginger	浙江瓯海区 Ouhai District, Zhejiang	51	生姜 Ginger	浙江龙泉龙南镇 Longnan Town, Long- quan City, Zhejiang	78	莱芜大姜 Laiwu Large Ginger	山东莱芜市 Laiwu City, Shandong
25	姜 Ginger	浙江永嘉县 Yongjia County, Zhejiang	52	沈村姜 Shencun Ginger	浙江莲都岩泉街 Yanquan Street, Liandu District, Zhejiang	79	本地姜 Local Ginger	浙江天台县街头镇 Jietou Town, Tiantai County, Zhejiang
26	姜 Ginger	浙江永嘉县 Yongjia County, Zhejiang	53	姜 Ginger	浙江莲都雅西镇 Yaxi Town, Liandu District, Zhejiang	80	本地姜 Local Ginger	浙江天台县雷锋乡 Leifeng Township, Tiantai County, Zhejiang
27	土姜 Native Ginger	浙江武义县 Wuyi County, Zhejiang	54	本地姜 Local Ginger	浙江黄岩宁溪镇 Ningxi Town, Huang- yan District, Zhejiang

性状 Trait	H'	分布频率Distribution frequency
性状 Trait	H'	1	2	3	4
嫩芽色 Shoot color	0	100.00	—	—	—
株型 Plant type	0.69	—	46.25	53.75
顶端叶角度Oriention of top leaf	0.20	77.50	22.50
叶形Leaf shape	0.65	63.75	36.25
叶色Leaf color	0.85	42.50	5.00	50.00	2.50
叶正面绒毛Villi on upper surface of leaf	0.31	13.75	86.25
叶背面绒毛Villi on dorsal surface of leaf	0	—	100.00
叶鞘色Sheath colour	0	100.00	—	—
地下茎色Underground stem color	0.73	—	1.25	58.75	40.00
根状茎排列Arraying of rhizome	0.46	7.50	5.00	87.50
根状茎皮色Color of rhizome skin	0.31	—	16.25	83.75
根状茎表皮褶皱Roughness of rhizome surface	0.62	6.25	80.00	13.75
根状茎分枝级数Branching series	0.07	—	—	1.25	98.75
子姜形状Sub-rhizome shape	0.80	3.75	36.25	60.00
子姜肉色Flesh color of sub-rhizome	0.20	—	5.00	95.00

性状 Trait	H'	分布频率Distribution frequency
性状 Trait	H'	1	2	3	4
嫩芽色 Shoot color	0	100.00	—	—	—
株型 Plant type	0.69	—	46.25	53.75
顶端叶角度Oriention of top leaf	0.20	77.50	22.50
叶形Leaf shape	0.65	63.75	36.25
叶色Leaf color	0.85	42.50	5.00	50.00	2.50
叶正面绒毛Villi on upper surface of leaf	0.31	13.75	86.25
叶背面绒毛Villi on dorsal surface of leaf	0	—	100.00
叶鞘色Sheath colour	0	100.00	—	—
地下茎色Underground stem color	0.73	—	1.25	58.75	40.00
根状茎排列Arraying of rhizome	0.46	7.50	5.00	87.50
根状茎皮色Color of rhizome skin	0.31	—	16.25	83.75
根状茎表皮褶皱Roughness of rhizome surface	0.62	6.25	80.00	13.75
根状茎分枝级数Branching series	0.07	—	—	1.25	98.75
子姜形状Sub-rhizome shape	0.80	3.75	36.25	60.00
子姜肉色Flesh color of sub-rhizome	0.20	—	5.00	95.00

性状 Trait	极小值 Minimum	极大值 Maximum	均值 Mean	标准差 Standard deviation	变异系数 CV/%	H'
株高Plant height/cm	61.00	142.00	106.28	16.55	15.57	2.07
株幅Plant width/cm	38.30	125.10	93.31	15.92	17.06	2.00
分枝数Number of branches	2.00	37.70	13.34	5.94	44.56	1.72
叶长Leaf length/cm	20.20	29.40	26.08	2.05	7.84	2.01
叶宽Leaf width/cm	2.40	3.50	2.95	0.23	7.86	2.04
主茎叶数Number of leaves on main stem	16.50	42.00	33.36	5.14	15.40	1.95
地上茎高Aboveground stem height /cm	41.80	124.10	88.28	16.15	18.29	2.06
地上茎粗Aboveground stem diameter/cm	6.60	13.20	10.20	1.30	12.76	2.05
根状茎长Rhizome length/cm	15.80	36.00	25.68	3.79	14.76	2.06
根状茎宽Rhizome width/cm	8.70	15.60	13.11	1.32	10.04	2.01
单株根状茎质量Rhizomes weight per plant/kg	0.19	1.24	0.73	0.22	30.20	2.03
子姜长Length of sub-rhizome/mm	45.80	83.20	65.32	6.96	10.65	1.98
子姜粗Diameter of sub-rhizome/mm	18.20	40.20	28.72	4.24	14.77	2.01
子姜茎节数Node number of sub-rhizomes	5.70	10.70	8.10	0.98	12.16	1.99
子姜节间长Node length of sub-rhizomes/mm	7.60	19.80	10.99	1.75	15.92	1.88

Genetic diversity analysis and core collection construction of ginger (Zingiber officinale Rosc.) germplasm accessions

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性状 Trait	1	2	3	4	5	6	7	8	9	10	11	12	13	14
2	0.708^**
3	0.180	0.341^**
4	0.824^**	0.581^**	-0.117
5	0.256^*	0.153	-0.380^**	0.549^**
6	0.774^**	0.594^**	0.251^*	0.615^**	0.009
7	0.969^**	0.660^**	0.225^*	0.756^**	0.195	0.767^**
8	0.600^**	0.385^**	-0.244^*	0.664^**	0.572^**	0.352^**	0.576^**
9	0.441^**	0.455^**	0.226^*	0.433^**	0.204	0.387^**	0.397^**	0.301^**
10	0.523^**	0.449^**	0.098	0.462^**	0.130	0.516^**	0.489^**	0.222^*	0.410^**
11	0.702^**	0.632^**	0.267^*	0.608^**	0.380^**	0.514^**	0.663^**	0.533^**	0.551^**	0.449^**
12	0.139	0.025	-0.291^**	0.257^*	0.459^**	-0.047	0.090	0.331^**	0.269^*	0.367^**	0.347^**
13	0.158	0.003	-0.517^**	0.397^**	0.503^**	0.040	0.081	0.445^**	0.193	0.138	0.141	0.186
14	0.427^**	0.307^**	0.051	0.292^**	0.094	0.384^**	0.437^**	0.164	0.064	0.399^**	0.297^**	0.204	-0.057
15	-0.038	-0.113	-0.199	0.041	0.320^**	-0.186	-0.076	0.221^*	0.098	0.069	0.254^*	0.612^**	0.254^*	-0.282^*

性状Trait	1	2	3	4	5	6
株型Plant type	-0.125	0.049	0.407	-0.114	0.060	0.046
顶端叶角度Oriention of top leaf	-0.087	-0.056	0.199	0.373	0.070	-0.107
叶形Leaf shape	0.157	-0.087	-0.387	0.015	0.045	0.136
叶色Leaf color	-0.018	0.160	-0.147	-0.142	0.013	0.454
叶正面绒毛Villi on upper surface of leaf	-0.074	-0.148	0.191	-0.294	-0.102	-0.121
地下茎色Underground stem color	-0.022	-0.099	-0.055	0.490	-0.093	0.122
根状茎排列Arraying of rhizome	0.137	-0.262	-0.040	-0.284	0.032	0.091
根状茎皮色Color of rhizome skin	-0.026	0.024	0.114	0.287	0.442	-0.041
根状茎表皮褶皱Roughness of rhizome surface	-0.190	-0.085	0.035	0.131	0.282	-0.400
根状茎分枝级数Branching series	0.089	-0.209	0.103	0.293	-0.248	0.378
子姜形状Sub-rhizomes shape	-0.003	0.035	-0.270	0.103	0.421	0.026
子姜肉色Flesh color of sub-rhizomes	-0.046	-0.005	-0.290	0.101	0.258	-0.087
株高Plant height	0.358	-0.079	-0.014	0.069	0.019	-0.067
株幅Plant width	0.287	-0.160	0.154	-0.004	0.055	-0.030
分枝数Number of branches	0.044	-0.377	0.161	0.058	0.286	0.217
叶长Leaf length	0.335	0.091	-0.015	0.092	-0.128	-0.138
叶宽Leaf width	0.159	0.391	-0.062	0.057	0.005	-0.168
主茎叶数Number of leaves on main stem	0.295	-0.199	0.063	0.004	-0.115	-0.130
地上茎高Aboveground stem height	0.347	-0.115	-0.048	0.041	0.021	-0.037
地上茎粗Aboveground stem diameter	0.267	0.231	-0.081	0.115	-0.101	0.092
根状茎长Rhizome length	0.214	-0.002	0.360	-0.028	0.116	0.029
根状茎宽Rhizome width	0.234	0.004	0.185	-0.186	0.141	-0.237
单株根状茎质量Rhizomes weight per plant	0.309	0.039	0.113	0.086	0.215	0.151
子姜长Length of sub-rhizome	0.116	0.359	0.074	-0.235	0.274	0.124
子姜粗Diameter of sub-rhizome	0.093	0.335	0.081	0.226	0.268	-0.246
子姜茎节数Node number of sub-rhizomes	0.183	-0.075	-0.308	-0.171	0.106	-0.124
子姜节间长Node length of sub-rhizomes	0.020	0.345	0.225	0.034	0.162	0.336
特征值Egienvalue	6.719	3.323	1.973	1.853	1.653	1.333
贡献率Contribution/%	24.885	12.306	7.309	6.862	6.124	4.938
累计贡献率Accumulated contribution/%	24.885	37.191	44.500	51.362	57.485	62.423

种质资源库 Core germplasm collection	取样比例 Sampling ratio	均值差异百分率 Mean difference percentage	方差差异百分率 Variance difference percentage	变异系数变化率 Coefficient of variation rate	极差符合率 Coincidence rate of range
S1	20	0	51.85	134.09	94.65
S2	30	3.70	18.52	124.56	96.40
S3	35	0	11.11	120.62	96.99
S4	40	0	29.63	121.82	97.97
S5	45	0	18.52	118.52	98.19
S6	50	0	14.81	115.81	98.19

性状 Trait	均值 Mean			变异系数Coefficient of variation/%			t值 t-value
性状 Trait	原种质 Primary germplasm	核心种质 Core collection	符合率 Coincidence rate	原种质 Primary germplasm	核心种质 Core collection	符合率 Coincidence rate	t值 t-value
株型Plant type	2.54	2.61	1.03	19.77	18.93	0.96	-0.73
顶端叶角度Oriention of top leaf	1.23	1.36	1.11	34.30	35.79	1.04	-1.45
叶形Leaf shape	1.36	1.25	0.92	35.50	35.13	0.99	1.24
叶色Leaf color	2.13	2.14	1.01	47.58	50.17	1.05	-0.07
叶正面绒毛Villi on upper surface of leaf	1.86	1.81	0.97	18.61	22.23	1.19	0.78
地下茎色Underground stem color	3.39	3.42	1.01	15.22	16.22	1.07	-0.28
根状茎排列Arraying of rhizome	2.80	2.64	0.94	20.01	27.41	1.37	1.19
根状茎皮色Color of rhizome skin	2.84	2.86	1.01	13.08	12.26	0.94	-0.32
根状茎表皮褶皱Roughness of rhizome surface	2.08	2.08	1.00	21.38	26.60	1.24	-0.09
根状茎分枝级数Branching series	3.99	3.97	1.00	2.80	4.20	1.50	0.58
子姜形状Sub-rhizomes shape	2.56	2.56	1.00	22.25	23.75	1.07	0.06
子姜肉色Flesh color of sub-rhizomes	2.95	2.89	0.98	7.43	11.03	1.48	1.04
株高Plant height/cm	106.31	102.09	0.96	15.52	18.82	1.21	1.21
株幅Plant width/cm	93.31	90.44	0.97	17.06	20.81	1.22	0.85
分枝数Number of branches	13.34	14.18	1.06	44.56	58.47	1.31	-0.55
叶长Leaf length/cm	26.08	25.36	0.97	7.84	9.49	1.21	1.65
叶宽Leaf width/cm	2.95	2.92	0.99	7.86	9.37	1.19	0.54
主茎叶数Number of leaves on main stem	33.36	32.27	0.97	15.40	19.51	1.27	0.99
地上茎高Aboveground stem height/cm	88.28	84.69	0.96	18.29	22.45	1.23	1.05
地上茎粗Aboveground stem diameter/cm	10.20	9.96	0.98	12.76	15.56	1.22	0.85
根状茎长Rhizome length/cm	25.68	24.78	0.96	14.76	17.73	1.20	1.13
根状茎宽Rhizome width/cm	13.11	12.89	0.98	10.04	11.75	1.17	0.80
单株根状茎质量Rhizomes weight per plant/kg	0.73	0.71	0.97	30.20	34.37	1.14	0.41
子姜长Length of sub-rhizome/mm	65.32	63.88	0.98	10.65	13.11	1.23	0.97
子姜粗Diameter of sub-rhizome/mm	28.72	28.08	0.98	14.77	18.06	1.22	0.71
子姜茎节数Node number of sub-rhizome	8.10	7.98	0.99	12.16	12.39	1.02	0.61
子姜节间长Node length of sub-rhizome/mm	10.99	11.09	1.01	15.92	19.96	1.25	-0.27

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