Diversity analysis of 30 tea (Camelia sinensis) germplasm resources in Chongqing based on agronomic traits and biochemical components

doi:10.3969/j.issn.1004-1524.2021.07.10

Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (7): 1244-1255.DOI: 10.3969/j.issn.1004-1524.2021.07.10

• Horticultural Science • Previous Articles Next Articles

Diversity analysis of 30 tea (Camelia sinensis) germplasm resources in Chongqing based on agronomic traits and biochemical components

ZHAI Xiuming¹^,²(), LI Jie¹^,², TANG Min¹^,², HU Fangjie¹^,², ZHANG Jun¹^,², HOU Yujia¹^,²^,^*(), XU Ze¹^,²

1. Tea Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 402160, China
2. Chongqing Engineering Technology Research Center of Tea Industry, Chongqing 402160, China

Received:2021-02-02 Online:2021-07-25 Published:2021-08-06
Contact: HOU Yujia

Abstract

Abstract:

In order to better develop and utilize tea germplasm resources in Chongqing and understand their genetic diversity, 30 agronomic traits and five main biochemical component indices of 30 preserved resources were identified and evaluated in this study. The results showed that there were varying degrees of variation in agronomic traits and main biochemical components of Chongqing tea resources. Coefficient variation of agronomic traits were 11.01%-53.54%, the average coefficient variation was 29.13%. The diversity index was 0.32-2.04, the average diversity index was 1.16; Coefficient variation of the main biochemical components was 11.87%-28.56%, the average coefficient variation was 19.4%; The diversity index was between 1.91-2.07, and the average diversity index was 2.00. The cumulative contribution rate of the first nine principal components was up to 74.85%, which contained most of the information of 35 trait indicators, could be used to comprehensively evaluate Chongqing tea germplasm resources. Through cluster analysis, 30 Chongqing tea resources were divided into three groups, the Ⅰ and Ⅱ groups might be applied to process green tea and black tea, the Ⅲ group was the high-quality raw materials for black tea. This study screened 1 germplasm with bud color variation, 3 germplasms with thick fluff in bud and leaves, 10 germplasms with early budding, 21 germplasms with high tea polyphenol, 4 germplasms with high caffeine.

Key words: Chongqing, tea germplasm resources, agronomic trait, biochemical composition, diversity

CLC Number:

S571.1

ZHAI Xiuming, LI Jie, TANG Min, HU Fangjie, ZHANG Jun, HOU Yujia, XU Ze. Diversity analysis of 30 tea (Camelia sinensis) germplasm resources in Chongqing based on agronomic traits and biochemical components[J]. Acta Agriculturae Zhejiangensis, 2021, 33(7): 1244-1255.

Figures/Tables 7

Table 1 Basic information of 30 tea plant germplasms in Chongqing

序号No.	名称Name	来源Origin	序号No.	名称Name	来源Origin
1	酉阳1号 Youyang1	酉阳宜居乡 Yiju Town, Youyang County	16	永川1 Yongchuan1	永川茶山竹海 Chashan Zhuhai, Yongchuan District
2	酉阳3号 Youyang3	酉阳宜居乡 Yiju Town, Youyang County	17	永川2 Yongchuan2	永川茶山竹海 Chashan Zhuhai, Yongchuan District
3	酉阳9号 Youyang9	酉阳宜居乡 Yiju Town, Youyang County	18	永川3 Yongchuan3	永川茶山竹海 Chashan Zhuhai, Yongchuan District
4	酉阳11号 Youyang11	酉阳宜居乡 Yiju Town, Youyang County	19	永川4 Yongchuan4	永川茶山竹海 Chashan Zhuhai, Yongchuan District
5	酉阳4-1 Youyang4-1	酉阳宜居乡 Yiju Town, Youyang County	20	永川5 Yongchuan5	永川茶山竹海 Chashan Zhuhai, Yongchuan District
6	酉阳4-2 Youyang4-2	酉阳宜居乡 Yiju Town, Youyang County	21	虎老溪2号 Hulaoxi2	武隆石桥乡 Shiqiao Town, Wulong County
7	酉阳4-3 Youyang4-3	酉阳宜居乡 Yiju Town, Youyang County	22	虎老溪3号 Hulaoxi3	武隆石桥乡 Shiqiao Town, Wulong County
8	酉阳5号 Youyang5	酉阳宜居乡 Yiju Town, Youyang County	23	虎老溪4号 Hulaoxi4	武隆石桥乡 Shiqiao Town, Wulong County
9	酉阳6号 Youyang6	酉阳宜居乡 Yiju Town, Youyang County	24	虎老溪5号 Hulaoxi5	武隆石桥乡 Shiqiao Town, Wulong County
10	酉阳7号 Youyang7	酉阳宜居乡 Yiju Town, Youyang County	25	虎老溪1号 Hulaoxi1	武隆石桥乡 Shiqiao Town, Wulong County
11	酉阳10号 Youyang10	酉阳宜居乡 Yiju Town, Youyang County	26	南川3 Nanchuan3	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
12	酉阳8号 Youyang8	酉阳宜居乡 Yiju Town, Youyang County	27	南川2 Nanchuan2	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
13	酉阳12号 Youyang12	酉阳宜居乡 Yiju Town, Youyang County	28	南川1 Nanchuan1	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
14	酉阳13号 Youyang13	酉阳宜居乡 Yiju Town, Youyang County	29	木皮槽2号 Mupicao2	江津区蔡家镇清溪村 Qingxi Village, Caijia Town, Jiangjin District
15	酉阳14号 Youyang14	酉阳宜居乡 Yiju Town, Youyang County	30	木皮槽1号 Mupicao1	江津区蔡家镇清溪村 Qingxi Village, Caijia Town, Jiangjin District

Table 1 Basic information of 30 tea plant germplasms in Chongqing

序号No.	名称Name	来源Origin	序号No.	名称Name	来源Origin
1	酉阳1号 Youyang1	酉阳宜居乡 Yiju Town, Youyang County	16	永川1 Yongchuan1	永川茶山竹海 Chashan Zhuhai, Yongchuan District
2	酉阳3号 Youyang3	酉阳宜居乡 Yiju Town, Youyang County	17	永川2 Yongchuan2	永川茶山竹海 Chashan Zhuhai, Yongchuan District
3	酉阳9号 Youyang9	酉阳宜居乡 Yiju Town, Youyang County	18	永川3 Yongchuan3	永川茶山竹海 Chashan Zhuhai, Yongchuan District
4	酉阳11号 Youyang11	酉阳宜居乡 Yiju Town, Youyang County	19	永川4 Yongchuan4	永川茶山竹海 Chashan Zhuhai, Yongchuan District
5	酉阳4-1 Youyang4-1	酉阳宜居乡 Yiju Town, Youyang County	20	永川5 Yongchuan5	永川茶山竹海 Chashan Zhuhai, Yongchuan District
6	酉阳4-2 Youyang4-2	酉阳宜居乡 Yiju Town, Youyang County	21	虎老溪2号 Hulaoxi2	武隆石桥乡 Shiqiao Town, Wulong County
7	酉阳4-3 Youyang4-3	酉阳宜居乡 Yiju Town, Youyang County	22	虎老溪3号 Hulaoxi3	武隆石桥乡 Shiqiao Town, Wulong County
8	酉阳5号 Youyang5	酉阳宜居乡 Yiju Town, Youyang County	23	虎老溪4号 Hulaoxi4	武隆石桥乡 Shiqiao Town, Wulong County
9	酉阳6号 Youyang6	酉阳宜居乡 Yiju Town, Youyang County	24	虎老溪5号 Hulaoxi5	武隆石桥乡 Shiqiao Town, Wulong County
10	酉阳7号 Youyang7	酉阳宜居乡 Yiju Town, Youyang County	25	虎老溪1号 Hulaoxi1	武隆石桥乡 Shiqiao Town, Wulong County
11	酉阳10号 Youyang10	酉阳宜居乡 Yiju Town, Youyang County	26	南川3 Nanchuan3	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
12	酉阳8号 Youyang8	酉阳宜居乡 Yiju Town, Youyang County	27	南川2 Nanchuan2	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
13	酉阳12号 Youyang12	酉阳宜居乡 Yiju Town, Youyang County	28	南川1 Nanchuan1	南川区德隆镇茶树村 Chashu Village, Delong Town, Nanchuan District
14	酉阳13号 Youyang13	酉阳宜居乡 Yiju Town, Youyang County	29	木皮槽2号 Mupicao2	江津区蔡家镇清溪村 Qingxi Village, Caijia Town, Jiangjin District
15	酉阳14号 Youyang14	酉阳宜居乡 Yiju Town, Youyang County	30	木皮槽1号 Mupicao1	江津区蔡家镇清溪村 Qingxi Village, Caijia Town, Jiangjin District

Table 2 Descriptive traits and assignment criterion

观测部位 Observation site	序号 No.	性状指标 Indicators	赋值标准 Assignment criterion
植株Plant	1	树型Tree type	灌木Shrub,1;小乔木Small arbor,2;乔木Arbor,3
新梢 New shoot	2	芽叶色泽Bud color	玉白色White,1;黄绿色Yellow green,2;淡绿色Light green,3;绿色Gree n,4;紫绿色Purplish green,5
	3	芽叶绒毛Shoots pubescence	无Absent,0;少Rare,1;中Medium,2;多Dense,3;特多A lot,4;
	4	一芽一叶期 One bud and one leaf stage	特早Extra-early,1;早Early,2;中Medium,3;晚Late,4
	5	一芽二叶期 One bud and two leaf stage	特早Extra-early,1;早Early,2;中Medium,3;晚Late,4
叶片	6	叶片大小 Leaf size	小叶Small leaf,1;中叶Middle leaf,2;大叶Big leaf,3;特大叶Especially big,4
Mature leaf	7	叶形 Leaf shape	近圆形Near circular,1;卵形Oval,2;椭圆形Ellipse,3;长椭圆形Long oval,4
	8	叶色 Leaf color	黄绿色Yellow green,1;浅绿色Light green,2;绿色Green,3;深绿色Deep green,4
	9	叶尖 Leaf apex	急尖Sharp,1;渐尖Acuminate,2;钝尖Blunt,3;圆尖Round,4
	10	叶缘 Leaf margin	平Flat,1;微波Microwave,2;波Wave,3
	11	叶面 Leaf surface	平Flat,1;微隆起Micro uplift,2;隆起Uplift,3
	12	叶身 Transection shape	内折Inner fold,1;平Flat,2;稍背卷Ratherish back roll,3
花Flower	13	花萼色泽 Calyx anthocyanin colouring	绿色Green,1;紫红色Mauve,2
	14	花瓣颜色 Petal color	白色White,1;淡绿色Light green,2;淡红色Light red,3
	15	花瓣质地 Petal texture	薄Thin,1;中Medium,2;厚Thick,3
	16	子房绒毛 Ovary pubescence	无Absent,1;有Exist,2
	17	花柱裂位 Stylet cracking location	低Low,1;中Medium,2;高High,3
	18	雌雄蕊相对高度 Pistil stamen relative height	雌蕊低Lower,1;雌雄蕊等高Equal,2;雌蕊高Higher,3

Table 3 Statistical analysis of diversity of agronomic traits and the main biochemical components of tea germplasm resources in Chongqing

性状 Traits	最小值 Minimum	最大值 Maximum	平均值 Mean	标准差 s	变异系数 CV/%	多样性指数 H’
树型Tree type	1.00	3.00	2.00	0.45	22.36	0.64
发芽密度Sprouting density/m^-2	181.82	2 200.00	668.73	283.46	42.39	1.96
一芽二叶长Length of two leaf and a bud/cm	2.80	8.30	4.54	0.93	20.55	1.99
一芽二叶百芽重Weight of 100 two leaf and a bud/g	9.50	48.90	19.90	7.22	36.32	1.71
一芽一叶期One bud and one leaf stage	1.00	4.00	2.26	0.96	42.61	1.27
一芽二叶期One bud and two leaf stage	1.00	4.00	2.02	0.97	47.76	1.19
叶长Leaf length/cm	4.00	17.30	8.40	1.99	23.71	2.00
叶宽Leaf width/cm	2.20	7.20	4.06	0.89	21.83	2.04
叶脉对数Lateral veins logarithmic	5.00	9.00	6.76	0.87	12.86	1.28
芽叶色泽Bud color	1.00	5.00	2.58	0.97	37.47	1.06
芽叶绒毛Shoots pubescence	0	4.00	2.63	1.41	53.54	1.44
叶片大小Leaf size	1.00	3.00	1.92	0.62	32.19	0.93
叶形Leaf shape	2.00	4.00	3.36	0.52	15.59	0.76
叶色Leaf color	1.00	4.00	3.06	0.49	15.97	0.68
叶尖Leaf apex	1.00	4.00	1.93	0.68	35.17	1.00
叶缘Leaf margin	1.00	3.00	2.04	0.94	46.06	0.96
叶面Leaf surface	1.00	3.00	1.54	0.70	45.43	0.94
叶身Transection shape	1.00	3.00	1.54	0.58	37.58	0.84
萼片数Calyx number	4.00	7.00	5.06	0.56	11.01	0.81
性状 Traits	最小值 Minimum	最大值 Maximum	平均值 Mean	标准差 s	变异系数 CV/%	多样性指数 H’
花冠直径短Short diameter of corolla/cm	1.20	5.50	2.69	0.76	28.30	1.89
花冠直径长Long diameter of corolla/cm	1.80	6.10	3.46	0.86	24.74	1.91
花瓣数Petals number	4.00	10.00	6.28	1.11	17.69	1.25
花柱长度Stylet length	0.40	2.60	1.15	0.31	26.77	1.91
柱头开裂数Stylet dehiscence number	2.00	5.00	3.04	0.37	12.32	0.40
花萼色泽Calyx anthocyanin colouring	1.00	2.00	1.14	0.35	30.72	0.41
花瓣颜色Petal color	1.00	2.00	1.59	0.49	30.97	0.68
花瓣质地Petal texture	1.00	3.00	2.14	0.41	19.11	0.55
子房绒毛Ovary pubescence	1.00	2.00	1.90	0.30	15.79	0.32
花柱裂位Stylet cracking location	1.00	3.00	2.58	0.73	28.32	0.78
雌雄蕊相对高度Pistil stamen relative height	1.00	3.00	2.02	0.79	38.99	1.09
水浸出物Water extracts/%	27.54	48.49	36.48	4.33	11.87	1.91
咖啡碱 Caffeine/%	2.08	5.84	3.95	0.86	21.75	2.05
茶多酚 Tea polyphenols/%	19.24	43.47	28.15	4.99	17.74	1.96
氨基酸 Amino acids/%	1.11	5.86	3.18	0.91	28.56	2.00
可溶性糖 Soluble sugar/%	2.25	5.05	3.45	0.59	17.08	2.07

Table 3 Statistical analysis of diversity of agronomic traits and the main biochemical components of tea germplasm resources in Chongqing

性状 Traits	最小值 Minimum	最大值 Maximum	平均值 Mean	标准差 s	变异系数 CV/%	多样性指数 H’
树型Tree type	1.00	3.00	2.00	0.45	22.36	0.64
发芽密度Sprouting density/m^-2	181.82	2 200.00	668.73	283.46	42.39	1.96
一芽二叶长Length of two leaf and a bud/cm	2.80	8.30	4.54	0.93	20.55	1.99
一芽二叶百芽重Weight of 100 two leaf and a bud/g	9.50	48.90	19.90	7.22	36.32	1.71
一芽一叶期One bud and one leaf stage	1.00	4.00	2.26	0.96	42.61	1.27
一芽二叶期One bud and two leaf stage	1.00	4.00	2.02	0.97	47.76	1.19
叶长Leaf length/cm	4.00	17.30	8.40	1.99	23.71	2.00
叶宽Leaf width/cm	2.20	7.20	4.06	0.89	21.83	2.04
叶脉对数Lateral veins logarithmic	5.00	9.00	6.76	0.87	12.86	1.28
芽叶色泽Bud color	1.00	5.00	2.58	0.97	37.47	1.06
芽叶绒毛Shoots pubescence	0	4.00	2.63	1.41	53.54	1.44
叶片大小Leaf size	1.00	3.00	1.92	0.62	32.19	0.93
叶形Leaf shape	2.00	4.00	3.36	0.52	15.59	0.76
叶色Leaf color	1.00	4.00	3.06	0.49	15.97	0.68
叶尖Leaf apex	1.00	4.00	1.93	0.68	35.17	1.00
叶缘Leaf margin	1.00	3.00	2.04	0.94	46.06	0.96
叶面Leaf surface	1.00	3.00	1.54	0.70	45.43	0.94
叶身Transection shape	1.00	3.00	1.54	0.58	37.58	0.84
萼片数Calyx number	4.00	7.00	5.06	0.56	11.01	0.81
性状 Traits	最小值 Minimum	最大值 Maximum	平均值 Mean	标准差 s	变异系数 CV/%	多样性指数 H’
花冠直径短Short diameter of corolla/cm	1.20	5.50	2.69	0.76	28.30	1.89
花冠直径长Long diameter of corolla/cm	1.80	6.10	3.46	0.86	24.74	1.91
花瓣数Petals number	4.00	10.00	6.28	1.11	17.69	1.25
花柱长度Stylet length	0.40	2.60	1.15	0.31	26.77	1.91
柱头开裂数Stylet dehiscence number	2.00	5.00	3.04	0.37	12.32	0.40
花萼色泽Calyx anthocyanin colouring	1.00	2.00	1.14	0.35	30.72	0.41
花瓣颜色Petal color	1.00	2.00	1.59	0.49	30.97	0.68
花瓣质地Petal texture	1.00	3.00	2.14	0.41	19.11	0.55
子房绒毛Ovary pubescence	1.00	2.00	1.90	0.30	15.79	0.32
花柱裂位Stylet cracking location	1.00	3.00	2.58	0.73	28.32	0.78
雌雄蕊相对高度Pistil stamen relative height	1.00	3.00	2.02	0.79	38.99	1.09
水浸出物Water extracts/%	27.54	48.49	36.48	4.33	11.87	1.91
咖啡碱 Caffeine/%	2.08	5.84	3.95	0.86	21.75	2.05
茶多酚 Tea polyphenols/%	19.24	43.47	28.15	4.99	17.74	1.96
氨基酸 Amino acids/%	1.11	5.86	3.18	0.91	28.56	2.00
可溶性糖 Soluble sugar/%	2.25	5.05	3.45	0.59	17.08	2.07

Table 4 Principal component analysis of agronomic traits and main biochemical components

性状 Traits	成分Component
性状 Traits	1	2	3	4	5	6	7	8	9
发芽密度Sprouting density	-0.572	-0.260	-0.177	-0.373	0.340	-0.032	0.175	0.193	-0.174
一芽二叶长Length of two leaf and a bud	0.719	0.265	-0.006	-0.156	-0.090	0.270	-0.051	0.314	0.137
一芽二叶百芽重	0.526	0.195	-0.109	0.014	-0.029	0.260	-0.365	0.375	0.333
Weight of 100 two leaf and a bud
叶长 Leaf length	0.434	-0.039	0.624	0.153	0.047	0.129	-0.098	-0.002	-0.084
叶宽 Leaf width	0.713	-0.101	0.389	0.215	0.136	-0.157	-0.081	-0.012	0.105
叶脉对数Lateral veins logarithmic	0.373	0.362	0.254	0.111	-0.502	-0.384	0.008	-0.163	-0.105
萼片数Calyx number	0.283	0.253	-0.483	-0.230	0.380	-0.183	-0.269	-0.169	0.003
花冠直径短Short diameter of corolla	0.886	-0.192	-0.028	0.120	0.032	0.079	0.089	0.077	-0.135
花冠直径长Long diameter of corolla	0.885	-0.165	-0.010	0.164	-0.058	0.031	0.094	0.038	-0.105
花瓣数Petals number	0.866	-0.136	-0.166	0.224	0.044	0.111	-0.085	-0.133	-0.027
花柱长度Stylet length	0.827	-0.026	0.052	0.220	0.049	-0.133	0.186	0.075	-0.013
柱头开裂数Stylet dehiscence number	0.735	-0.092	-0.257	0.127	-0.048	0.071	-0.112	-0.450	-0.133
树型Tree type	0.949	-0.124	-0.181	-0.051	-0.025	0.040	-0.015	-0.024	0.002
芽叶绒毛Shoots pubescence	-0.789	0.135	0.047	-0.121	0.160	0.075	-0.186	-0.196	0.042
一芽一叶期One bud and one leaf stage	0.033	0.817	-0.181	0.134	-0.121	0.375	0.094	-0.018	-0.138
一芽二叶期One bud and two leaf stage	-0.013	0.752	-0.195	0.119	-0.214	0.388	0.010	0.088	-0.286
芽叶色泽Bud color	0.451	0.173	0.451	-0.070	0.125	-0.046	0.224	-0.151	0.060
叶片大小Leaf size	0.739	-0.151	0.145	0.097	-0.086	0.183	-0.094	0.158	0.099
叶形Leaf shape	0.170	0.117	0.318	-0.557	-0.337	0.205	-0.007	-0.035	-0.083
叶色Leaf color	0.188	0.446	-0.084	-0.071	0.109	-0.441	0.052	0.353	0.112
花萼色泽Calyx anthocyanin colouring	-0.041	0.441	0.049	0.049	-0.180	-0.111	0.481	-0.075	0.217
花瓣颜色Petal color	-0.509	0.458	-0.142	0.097	-0.209	-0.183	-0.108	0.099	-0.317
花瓣质地Petal texture	0.805	-0.061	-0.086	0.021	0.180	0.049	0.014	0.142	-0.159
子房绒毛Ovary pubescence	-0.851	0.090	0.276	-0.069	0.019	-0.072	0.177	0.236	0.020
花柱裂位Stylet cracking location	0.117	0.498	-0.099	-0.293	0.123	0.048	-0.079	-0.458	0.466
雌雄蕊相对高度	0.100	0.267	-0.018	0.568	0.530	-0.101	0.226	-0.050	0.016
Pistil stamen relative height
叶尖Leaf apex	-0.528	-0.193	-0.185	0.275	-0.031	0.099	0.360	0.129	0.135
叶缘Leaf margin	-0.354	-0.204	0.293	0.083	-0.210	-0.187	-0.510	0.044	0.075
叶面Leaf surface	-0.156	0.499	0.367	0.163	0.502	0.169	-0.163	-0.050	-0.027
叶身Transection shape	-0.192	0.558	0.371	0.101	0.192	-0.014	-0.098	0.060	-0.008
咖啡碱Caffeine	0.580	0.193	-0.131	-0.052	-0.304	-0.283	0.212	-0.092	0.288
氨基酸Amino acids	-0.577	-0.266	-0.083	0.361	-0.117	0.316	0.043	0.070	0.326
茶多酚Tea polyphenols	0.669	0.134	-0.012	-0.460	0.170	0.039	0.108	0.289	0.149
水浸出物Water extracts	0.695	0.071	0.078	-0.410	0.173	-0.221	0.070	0.045	-0.220
可溶性糖Soluble sugar	0.013	-0.250	0.285	-0.337	0.090	0.453	0.336	-0.253	-0.050
特征值Eigenvalues	11.638	3.574	2.038	2.004	1.699	1.552	1.366	1.278	1.049
贡献率Contribution rate/%	33.252	10.211	5.823	5.726	4.853	4.433	3.902	3.653	2.997
累计贡献率	33.252	43.463	49.286	55.012	59.865	64.299	68.200	71.853	74.850
Accumulative contribution rate/%

Table 4 Principal component analysis of agronomic traits and main biochemical components

性状 Traits	成分Component
性状 Traits	1	2	3	4	5	6	7	8	9
发芽密度Sprouting density	-0.572	-0.260	-0.177	-0.373	0.340	-0.032	0.175	0.193	-0.174
一芽二叶长Length of two leaf and a bud	0.719	0.265	-0.006	-0.156	-0.090	0.270	-0.051	0.314	0.137
一芽二叶百芽重	0.526	0.195	-0.109	0.014	-0.029	0.260	-0.365	0.375	0.333
Weight of 100 two leaf and a bud
叶长 Leaf length	0.434	-0.039	0.624	0.153	0.047	0.129	-0.098	-0.002	-0.084
叶宽 Leaf width	0.713	-0.101	0.389	0.215	0.136	-0.157	-0.081	-0.012	0.105
叶脉对数Lateral veins logarithmic	0.373	0.362	0.254	0.111	-0.502	-0.384	0.008	-0.163	-0.105
萼片数Calyx number	0.283	0.253	-0.483	-0.230	0.380	-0.183	-0.269	-0.169	0.003
花冠直径短Short diameter of corolla	0.886	-0.192	-0.028	0.120	0.032	0.079	0.089	0.077	-0.135
花冠直径长Long diameter of corolla	0.885	-0.165	-0.010	0.164	-0.058	0.031	0.094	0.038	-0.105
花瓣数Petals number	0.866	-0.136	-0.166	0.224	0.044	0.111	-0.085	-0.133	-0.027
花柱长度Stylet length	0.827	-0.026	0.052	0.220	0.049	-0.133	0.186	0.075	-0.013
柱头开裂数Stylet dehiscence number	0.735	-0.092	-0.257	0.127	-0.048	0.071	-0.112	-0.450	-0.133
树型Tree type	0.949	-0.124	-0.181	-0.051	-0.025	0.040	-0.015	-0.024	0.002
芽叶绒毛Shoots pubescence	-0.789	0.135	0.047	-0.121	0.160	0.075	-0.186	-0.196	0.042
一芽一叶期One bud and one leaf stage	0.033	0.817	-0.181	0.134	-0.121	0.375	0.094	-0.018	-0.138
一芽二叶期One bud and two leaf stage	-0.013	0.752	-0.195	0.119	-0.214	0.388	0.010	0.088	-0.286
芽叶色泽Bud color	0.451	0.173	0.451	-0.070	0.125	-0.046	0.224	-0.151	0.060
叶片大小Leaf size	0.739	-0.151	0.145	0.097	-0.086	0.183	-0.094	0.158	0.099
叶形Leaf shape	0.170	0.117	0.318	-0.557	-0.337	0.205	-0.007	-0.035	-0.083
叶色Leaf color	0.188	0.446	-0.084	-0.071	0.109	-0.441	0.052	0.353	0.112
花萼色泽Calyx anthocyanin colouring	-0.041	0.441	0.049	0.049	-0.180	-0.111	0.481	-0.075	0.217
花瓣颜色Petal color	-0.509	0.458	-0.142	0.097	-0.209	-0.183	-0.108	0.099	-0.317
花瓣质地Petal texture	0.805	-0.061	-0.086	0.021	0.180	0.049	0.014	0.142	-0.159
子房绒毛Ovary pubescence	-0.851	0.090	0.276	-0.069	0.019	-0.072	0.177	0.236	0.020
花柱裂位Stylet cracking location	0.117	0.498	-0.099	-0.293	0.123	0.048	-0.079	-0.458	0.466
雌雄蕊相对高度	0.100	0.267	-0.018	0.568	0.530	-0.101	0.226	-0.050	0.016
Pistil stamen relative height
叶尖Leaf apex	-0.528	-0.193	-0.185	0.275	-0.031	0.099	0.360	0.129	0.135
叶缘Leaf margin	-0.354	-0.204	0.293	0.083	-0.210	-0.187	-0.510	0.044	0.075
叶面Leaf surface	-0.156	0.499	0.367	0.163	0.502	0.169	-0.163	-0.050	-0.027
叶身Transection shape	-0.192	0.558	0.371	0.101	0.192	-0.014	-0.098	0.060	-0.008
咖啡碱Caffeine	0.580	0.193	-0.131	-0.052	-0.304	-0.283	0.212	-0.092	0.288
氨基酸Amino acids	-0.577	-0.266	-0.083	0.361	-0.117	0.316	0.043	0.070	0.326
茶多酚Tea polyphenols	0.669	0.134	-0.012	-0.460	0.170	0.039	0.108	0.289	0.149
水浸出物Water extracts	0.695	0.071	0.078	-0.410	0.173	-0.221	0.070	0.045	-0.220
可溶性糖Soluble sugar	0.013	-0.250	0.285	-0.337	0.090	0.453	0.336	-0.253	-0.050
特征值Eigenvalues	11.638	3.574	2.038	2.004	1.699	1.552	1.366	1.278	1.049
贡献率Contribution rate/%	33.252	10.211	5.823	5.726	4.853	4.433	3.902	3.653	2.997
累计贡献率	33.252	43.463	49.286	55.012	59.865	64.299	68.200	71.853	74.850
Accumulative contribution rate/%

Fig.1 Clustering chart of 30 tea germplasms in Chongqing

Table 5 Agronomic traits and main biochemical components among different groups

项目 Item	第Ⅰ类群 Group Ⅰ		第Ⅱ类群Group Ⅱ		第Ⅲ类群Group Ⅲ
项目 Item	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%
发芽密度Sprouting density/m^-2	702.91±280.85 a	39.96	764.65±94.41 a	12.35	436.16±217.86 b	49.95
一芽二叶长 Length of two leaf and a bud/cm	4.43±0.49 b	11.09	3.83±0.24 c	6.28	5.70±0.73 a	12.86
一芽二叶百芽重	19.29±5.28 b	27.38	14.64±1.95 c	13.32	26.87±11.16 a	41.53
Weight of 100 two leaf and a bud/g
叶长 Leaf length/cm	8.13±1.29 b	15.87	8.33±0.73 b	8.81	9.56±3.29 a	34.47
叶宽 Leaf width/cm	3.82±0.69 b	18.06	3.99±0.43 b	10.72	5.06±0.70 a	13.79
叶脉对数Lateral veins logarithmic	6.77±0.53 b	7.77	6.49±0.31 ab	4.80	7.06±0.42 a	5.93
萼片数Calyx number	5.11±0.29 a	5.72	4.61±0.19 b	4.14	5.27±0.58 a	10.99
花冠直径短Short diameter of corolla/cm	2.41±0.31 b	12.85	2.58±0.20 b	7.69	3.94±0.57 a	14.56
花冠直径长Long diameter of corolla/cm	3.15±0.38 b	11.97	3.36±0.26 b	7.78	4.82±0.74 a	15.31
花瓣数Petals number	5.89±0.43 b	7.34	6.16±0.30 b	4.79	7.97±1.20 a	15.01
花柱长度Stylet length	1.07±0.15 b	14.25	1.06±0.25 b	23.44	1.59±0.20 a	12.30
柱头开裂数Stylet dehiscence number	2.98±0.11 b	3.69	3.00±0 b	0	3.33±0.37 a	11.03
树型Tree type	1.00±0 b	0	1.00±0 b	0	2.60±0.51 a	19.50
芽叶绒毛Shoots pubescence	3.23±0.79 a	24.40	2.73±1.33 a	48.82	0.13±0.35 b	263.90
一芽一叶期One bud and one leaf stage	2.62±0.76 a	29.09	1.00±0 c	0	2.07±1.10 b	53.22
一芽二叶期One bud and two leaf stage	2.33±0.90 a	38.39	1.00±0 b	0	1.80±1.01 a	56.34
芽叶色泽Bud color	2.53±0.98 b	38.78	2.00±0 b	0	3.33±0.98 a	29.28
叶片大小Leaf size	1.67±0.48 b	28.52	1.93±0.26 b	13.36	2.93±0.26 a	8.80
叶形Leaf shape	3.35±0.48 ab	14.36	3.13±0.35 b	11.23	3.60±0.74 a	20.47
叶色Leaf color	3.15±0.36 a	11.43	2.53±0.64 b	25.26	3.27±0.46 a	14.01
花萼色泽Calyx anthocyanin colouring	1.18±0.39 a	32.98	1.00±0 a	0	1.13±0.35 a	31.05
花瓣颜色Petal color	1.75±0.44 a	24.95	1.53±0.52 a	33.68	1.00±0 b	0
花瓣质地Petal texture	2.00±0.26 b	13.02	2.00±0 b	0	2.87±0.35 a	12.27
子房绒毛Ovary pubescence	2.00±0 a	0	2.00±0 a	0	1.40±0.51 b	36.22
花柱裂位Stylet cracking location	2.77±0.53 a	19.25	1.80±0.86 b	47.88	2.60±0.83 a	31.85
项目 Item	第Ⅰ类群 Group Ⅰ		第Ⅱ类群Group Ⅱ		第Ⅲ类群Group Ⅲ
项目 Item	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%
雌雄蕊相对高度Pistil stamen relative height	2.12±0.72 a	33.79	1.67±0.98 a	58.55	2.00±0.85 a	42.26
叶尖Leaf apex	1.98±0.62 b	31.47	2.40±0.63 a	26.35	1.27±0.46 c	36.14
叶缘Leaf margin	2.00±0.94 b	46.94	3.00±0 a	0	1.27±0.59 c	46.86
叶面Leaf surface	1.78±0.74 a	41.41	1.07±0.26 b	24.21	1.07±0.26 b	24.21
叶身Transection shape	1.72±0.59 a	34.07	1.20±0.41 b	34.50	1.20±0.41 b	34.50
咖啡碱 Caffeine/%	3.89±0.78 b	20.15	3.20±0.54 c	16.86	4.91±0.50 a	10.10
氨基酸 Amino acids/%	3.22±0.74 b	22.92	4.03±0.78 a	19.42	2.25±0.68 c	30.03
茶多酚 Tea polyphenols/%	27.29±3.10 b	11.38	23.35±2.71 c	11.62	36.42±3.33 a	9.15
水浸出物 Water extracts/%	35.35±2.56 b	7.23	35.63±4.02 b	11.29	41.92±6.23 a	14.86
可溶性糖 Soluble sugar/%	3.37±0.56 a	16.51	3.67±0.69 a	18.75	3.53±0.61 a	17.14

Table 5 Agronomic traits and main biochemical components among different groups

项目 Item	第Ⅰ类群 Group Ⅰ		第Ⅱ类群Group Ⅱ		第Ⅲ类群Group Ⅲ
项目 Item	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%
发芽密度Sprouting density/m^-2	702.91±280.85 a	39.96	764.65±94.41 a	12.35	436.16±217.86 b	49.95
一芽二叶长 Length of two leaf and a bud/cm	4.43±0.49 b	11.09	3.83±0.24 c	6.28	5.70±0.73 a	12.86
一芽二叶百芽重	19.29±5.28 b	27.38	14.64±1.95 c	13.32	26.87±11.16 a	41.53
Weight of 100 two leaf and a bud/g
叶长 Leaf length/cm	8.13±1.29 b	15.87	8.33±0.73 b	8.81	9.56±3.29 a	34.47
叶宽 Leaf width/cm	3.82±0.69 b	18.06	3.99±0.43 b	10.72	5.06±0.70 a	13.79
叶脉对数Lateral veins logarithmic	6.77±0.53 b	7.77	6.49±0.31 ab	4.80	7.06±0.42 a	5.93
萼片数Calyx number	5.11±0.29 a	5.72	4.61±0.19 b	4.14	5.27±0.58 a	10.99
花冠直径短Short diameter of corolla/cm	2.41±0.31 b	12.85	2.58±0.20 b	7.69	3.94±0.57 a	14.56
花冠直径长Long diameter of corolla/cm	3.15±0.38 b	11.97	3.36±0.26 b	7.78	4.82±0.74 a	15.31
花瓣数Petals number	5.89±0.43 b	7.34	6.16±0.30 b	4.79	7.97±1.20 a	15.01
花柱长度Stylet length	1.07±0.15 b	14.25	1.06±0.25 b	23.44	1.59±0.20 a	12.30
柱头开裂数Stylet dehiscence number	2.98±0.11 b	3.69	3.00±0 b	0	3.33±0.37 a	11.03
树型Tree type	1.00±0 b	0	1.00±0 b	0	2.60±0.51 a	19.50
芽叶绒毛Shoots pubescence	3.23±0.79 a	24.40	2.73±1.33 a	48.82	0.13±0.35 b	263.90
一芽一叶期One bud and one leaf stage	2.62±0.76 a	29.09	1.00±0 c	0	2.07±1.10 b	53.22
一芽二叶期One bud and two leaf stage	2.33±0.90 a	38.39	1.00±0 b	0	1.80±1.01 a	56.34
芽叶色泽Bud color	2.53±0.98 b	38.78	2.00±0 b	0	3.33±0.98 a	29.28
叶片大小Leaf size	1.67±0.48 b	28.52	1.93±0.26 b	13.36	2.93±0.26 a	8.80
叶形Leaf shape	3.35±0.48 ab	14.36	3.13±0.35 b	11.23	3.60±0.74 a	20.47
叶色Leaf color	3.15±0.36 a	11.43	2.53±0.64 b	25.26	3.27±0.46 a	14.01
花萼色泽Calyx anthocyanin colouring	1.18±0.39 a	32.98	1.00±0 a	0	1.13±0.35 a	31.05
花瓣颜色Petal color	1.75±0.44 a	24.95	1.53±0.52 a	33.68	1.00±0 b	0
花瓣质地Petal texture	2.00±0.26 b	13.02	2.00±0 b	0	2.87±0.35 a	12.27
子房绒毛Ovary pubescence	2.00±0 a	0	2.00±0 a	0	1.40±0.51 b	36.22
花柱裂位Stylet cracking location	2.77±0.53 a	19.25	1.80±0.86 b	47.88	2.60±0.83 a	31.85
项目 Item	第Ⅰ类群 Group Ⅰ		第Ⅱ类群Group Ⅱ		第Ⅲ类群Group Ⅲ
项目 Item	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%	平均值±标准差 $\bar{x}$ ±s	变异系数 CV/%
雌雄蕊相对高度Pistil stamen relative height	2.12±0.72 a	33.79	1.67±0.98 a	58.55	2.00±0.85 a	42.26
叶尖Leaf apex	1.98±0.62 b	31.47	2.40±0.63 a	26.35	1.27±0.46 c	36.14
叶缘Leaf margin	2.00±0.94 b	46.94	3.00±0 a	0	1.27±0.59 c	46.86
叶面Leaf surface	1.78±0.74 a	41.41	1.07±0.26 b	24.21	1.07±0.26 b	24.21
叶身Transection shape	1.72±0.59 a	34.07	1.20±0.41 b	34.50	1.20±0.41 b	34.50
咖啡碱 Caffeine/%	3.89±0.78 b	20.15	3.20±0.54 c	16.86	4.91±0.50 a	10.10
氨基酸 Amino acids/%	3.22±0.74 b	22.92	4.03±0.78 a	19.42	2.25±0.68 c	30.03
茶多酚 Tea polyphenols/%	27.29±3.10 b	11.38	23.35±2.71 c	11.62	36.42±3.33 a	9.15
水浸出物 Water extracts/%	35.35±2.56 b	7.23	35.63±4.02 b	11.29	41.92±6.23 a	14.86
可溶性糖 Soluble sugar/%	3.37±0.56 a	16.51	3.67±0.69 a	18.75	3.53±0.61 a	17.14

Table 6 Agronomic traits and main biochemical components among different groups

项目 Item	评定标准 Evaluation criteria	筛选资源名称 Screened resource name
一芽一叶期 One bud and one leaf stage	比福鼎大白茶早10 d 或晚30 d以上 Ten days earlier or 30 days later than Fuding Dabai tea	酉阳10号(早12 d)Youyang 10 (12 days earlier),酉阳15号(早10 d)Youyang 15(ten days earlier),永川1号(早22 d)Yongchuan 1 (22 days earlier),永川2号(早24 d)Yongchuan 2(24 days earlier),永川3号(早22 d)Yongchuan 3(22 days earlier),永川4号(早12 d)Yongchuan 4(12 days earlier),永川5号(早24 d)Yongchuan 10 (12 days earlier),南川3号(早24 d) Nanchuan 3(24 days earlier),南川1号(早12d) Nanchuan 1(12 days earlier),木皮槽1号(早12 d)Mupicao1(12 days earlier)
芽叶色泽 Bud color	白色White; 黄色Yellow; 紫红色Purplish red	酉阳6号(白色)Youyang 6(White)
芽叶绒毛 Shoots pubescence	比福鼎大白茶多 More than Fuding Dabai tea	酉阳9号Youyang 9,酉阳13号Youyang 13,酉阳14号Youyang 14
茶多酚总量 Tea polyphenols content/%	≥25;≤7.5	酉阳1号(29.56)Youyang 1 (29.56),酉阳3号(28.85)Youyang 3(28.85),酉阳9号(28.12)Youyang 9(28.12),酉阳11号(25.09)Youyang 11(25.09),酉阳4-1(29.51)Youyang 4-1(29.51),酉阳4-2(26.73)Youyang 4.2(26.73),酉阳4-3(28.52)Youyang 4-3(28.52),酉阳5号(28.73)Youyang 5(28.73),酉阳7号(25.64)Youyang 7(25.64),酉阳10号(28.94)Youyang 10(28.94),酉阳8号(31.38)Youyang 8(31.38),酉阳13号(29.19)Youyang 13(29.19),酉阳14号(28.13)Youyang 14(28.13),虎老溪4号(26.35)Hulaoxi 4(26.35),虎老溪5号(26.54)Hulaoxi 5(26.54),虎老溪1号(26.45)Hulaoxi 1(26.45),南川3(33.85)Nanchuan 3(33.85),南川2(34.72)Nanchuan 2(34.72),南川1(34.73)Nanchuan 1(34.73),木皮槽2(42.34)Mupicao 2(42.34),木皮槽1(36.48)Mupicao 1(36.48)
咖啡碱总量 Caffeine content/%	≥5.0;≤1.5	虎老溪2号(5.35)Hulaoxi 2(5.35),虎老溪5号(5.66)Hulaoxi 5(5.66),南川3(5.05)Nanchuan 3(5.05),南川2(5.18)Nanchuan 2(5.18)

Table 6 Agronomic traits and main biochemical components among different groups

项目 Item	评定标准 Evaluation criteria	筛选资源名称 Screened resource name
一芽一叶期 One bud and one leaf stage	比福鼎大白茶早10 d 或晚30 d以上 Ten days earlier or 30 days later than Fuding Dabai tea	酉阳10号(早12 d)Youyang 10 (12 days earlier),酉阳15号(早10 d)Youyang 15(ten days earlier),永川1号(早22 d)Yongchuan 1 (22 days earlier),永川2号(早24 d)Yongchuan 2(24 days earlier),永川3号(早22 d)Yongchuan 3(22 days earlier),永川4号(早12 d)Yongchuan 4(12 days earlier),永川5号(早24 d)Yongchuan 10 (12 days earlier),南川3号(早24 d) Nanchuan 3(24 days earlier),南川1号(早12d) Nanchuan 1(12 days earlier),木皮槽1号(早12 d)Mupicao1(12 days earlier)
芽叶色泽 Bud color	白色White; 黄色Yellow; 紫红色Purplish red	酉阳6号(白色)Youyang 6(White)
芽叶绒毛 Shoots pubescence	比福鼎大白茶多 More than Fuding Dabai tea	酉阳9号Youyang 9,酉阳13号Youyang 13,酉阳14号Youyang 14
茶多酚总量 Tea polyphenols content/%	≥25;≤7.5	酉阳1号(29.56)Youyang 1 (29.56),酉阳3号(28.85)Youyang 3(28.85),酉阳9号(28.12)Youyang 9(28.12),酉阳11号(25.09)Youyang 11(25.09),酉阳4-1(29.51)Youyang 4-1(29.51),酉阳4-2(26.73)Youyang 4.2(26.73),酉阳4-3(28.52)Youyang 4-3(28.52),酉阳5号(28.73)Youyang 5(28.73),酉阳7号(25.64)Youyang 7(25.64),酉阳10号(28.94)Youyang 10(28.94),酉阳8号(31.38)Youyang 8(31.38),酉阳13号(29.19)Youyang 13(29.19),酉阳14号(28.13)Youyang 14(28.13),虎老溪4号(26.35)Hulaoxi 4(26.35),虎老溪5号(26.54)Hulaoxi 5(26.54),虎老溪1号(26.45)Hulaoxi 1(26.45),南川3(33.85)Nanchuan 3(33.85),南川2(34.72)Nanchuan 2(34.72),南川1(34.73)Nanchuan 1(34.73),木皮槽2(42.34)Mupicao 2(42.34),木皮槽1(36.48)Mupicao 1(36.48)
咖啡碱总量 Caffeine content/%	≥5.0;≤1.5	虎老溪2号(5.35)Hulaoxi 2(5.35),虎老溪5号(5.66)Hulaoxi 5(5.66),南川3(5.05)Nanchuan 3(5.05),南川2(5.18)Nanchuan 2(5.18)

References 23

[1]	姚明哲, 马春雷, 金基强, 等. 川、渝地方茶树品种的遗传多样性和群体结构[J]. 茶叶科学, 2012, 32(5):419-425.
	YAO M Z, MA C L, JIN J Q, et al. Genetic diversity and population structure of local tea landraces in Sichuan and Chongqing revealed by EST-SSR markers[J]. Journal of Tea Science, 2012, 32(5):419-425.(in Chinese with English abstract)
[2]	中国茶叶学会. 茶学学科发展报告: 2009—2010[M]. 北京: 中国科学技术出版社, 2010: 40-45.
[3]	蒋会兵, 田易萍, 陈林波, 等. 云南茶树地方品种农艺性状与品质性状遗传多样性分析[J]. 植物遗传资源学报, 2013, 14(4):634-640.
	JIANG H B, TIAN Y P, CHEN L B, et al. Diversity of tea landraces based on agronomic and quality traits in Yunnan Province[J]. Journal of Plant Genetic Resources, 2013, 14(4):634-640.(in Chinese with English abstract)
[4]	陈红霖, 胡亮亮, 杨勇, 等. 481份国内外绿豆种质农艺性状及豆象抗性鉴定评价及遗传多样性分析[J]. 植物遗传资源学报, 2020, 21(3):549-559.
	CHEN H L, HU L L, YANG Y, et al. Evaluation and genetic diversity analysis of agronomic traits and bruchid resistance using 481 worldwide mungbean germplasms[J]. Journal of Plant Genetic Resources, 2020, 21(3):549-559.(in Chinese with English abstract)
[5]	江建华, 倪皖莉, 管叔琪, 等. 126份花生品种主要农艺性状遗传多样性分析[J]. 中国农学通报, 2014, 30(3):117-123.
	JIANG J H, NI W L, GUAN S Q, et al. Analysis of genetic diversity of main agronomic traits in 126 peanut varieties[J]. Chinese Agricultural Science Bulletin, 2014, 30(3):117-123.(in Chinese with English abstract)
[6]	堵源康, 秦廷发, 王子浩, 等. 云南35份茶树良种生化成分多样性分析[J]. 西南大学学报(自然科学版), 2013, 35(10):36-41.
	DU Y K, QIN T F, WANG Z H, et al. Diversity analysis of biochemical components of 35 tea germplasms in Yunnan[J]. Journal of Southwest University (Natural Science Edition), 2013, 35(10):36-41.(in Chinese with English abstract)
[7]	田甜, 韦锦坚, 韦持章, 等. 35份茶树种质资源农艺性状及生化成分多样性分析[J]. 西北农业学报, 2017, 26(5):797-804.
	TIAN T, WEI J J, WEI C Z, et al. Diversity analysis of agronomic traits and biochemical components for 35 tea germplasm[J]. Acta Agriculturae Boreali-Occidentalis Sinica, 2017, 26(5):797-804.(in Chinese with English abstract)
[8]	李瑞, 肖斌, 宋红霞, 等. 50份茶树种质资源农艺性状及其聚类分析[J]. 西北农业学报, 2011, 20(10):107-111.
	LI R, XIAO B, SONG H X, et al. Agronomic traits and cluster analysis of 50 tea germplasm resources[J]. Acta Agriculturae Boreali-Occidentalis Sinica, 2011, 20(10):107-111.(in Chinese with English abstract)
[9]	王飞权, 冯花, 罗盛财, 等. 武夷名丛茶树种质资源农艺性状多样性分析[J]. 中国农业科技导报, 2019, 21(6):43-54.
	WANG F Q, FENG H, LUO S C, et al. Diversity analysis of agronomic traits of Wuyi Mingcong tea plant germplasm resources[J]. Journal of Agricultural Science and Technology, 2019, 21(6):43-54.(in Chinese with English abstract)
[10]	石林. 聚类分析在茶树品种分类中的应用[J]. 中国茶叶, 1988, 10(3):15-17.
	SHI L. Application of cluster analysis in classification of tea varieties[J]. Chinese Tea, 1988, 10(3):15-17. (in Chinese)
[11]	SHANNON C E, WEAVER W. The mathem atical theory of communication[M]. Urbana: University of Illinois Press, 1994: 3-14.
[12]	班秋艳, 潘宇婷, 胡歆, 等. 陕西茶树地方种质资源特征性生化成分分析[J]. 安徽农业大学学报, 2018, 45(5):777-782.
	BAN Q Y, PAN Y T, HU X, et al. Characteristic biochemical analysis of tea germplasm resources in Shaanxi Province[J]. Journal of Anhui Agricultural University, 2018, 45(5):777-782.(in Chinese with English abstract)
[13]	江昌俊. 茶树育种学[M]. 2版. 北京: 中国农业出版社, 2011: 15-18.
[14]	蒋会兵, 宋维希, 矣兵, 等. 云南茶树种质资源的表型遗传多样性[J]. 作物学报, 2013, 39(11):2000-2008.
	JIANG H B, SONG W X, YI B, et al. Genetic diversity of tea germplasm resources in Yunnan Province based on phenotypic characteristics[J]. Acta Agronomica Sinica, 2013, 39(11):2000-2008.(in Chinese with English abstract) DOI URL
[15]	谢文钢, 李晓松, 李伟, 等. 四川地方中小叶茶树资源的表型遗传多样性[J]. 浙江农业学报, 2019, 31(9):1405-1415.
	XIE W G, LI X S, LI W, et al. Genetic diversity of “Small & Medium Leaf” tea resources in Sichuan Province based on phenotypic characteristics[J]. Acta Agriculturae Zhejiangensis, 2019, 31(9):1405-1415.(in Chinese with English abstract)
[16]	丁帅涛, 程晓梅, 张亚, 等. 基于表型性状和生化成分的陕西茶树种质资源遗传多样性研究[J]. 西北农业学报, 2019, 28(4):607-619.
	DING S T, CHENG X M, ZHANG Y, et al. Genetic diversity in phenotypic traits and biochemical components of tea germplasm resources in Shaanxi[J]. Acta Agriculturae Boreali-Occidentalis Sinica, 2019, 28(4):607-619.(in Chinese with English abstract)
[17]	张小琴, 周富裕, 杨春, 等. 贵定鸟王种茶树资源农艺性状和品质性状多样性分析[J]. 分子植物育种, 2015, 13(2):415-423.
	ZHANG X Q, ZHOU F Y, YANG C, et al. Diversity of tea germplasm resource (Camellia sinensis ‘Guiding-niaowangzhong’) revealed based on agronomic and quality traits[J]. Molecular Plant Breeding, 2015, 13(2):415-423.(in Chinese with English abstract)
[18]	王新超, 陈亮, 杨亚军. 广西茶树资源生化成分多样性分析[J]. 植物遗传资源学报, 2010, 11(3):309-314,319.
	WANG X C, CHEN L, YANG Y J. Biochemical diversity analysis of tea germplasms in Guangxi[J]. Journal of Plant Genetic Resources, 2010, 11(3):309-314,319.(in Chinese with English abstract)
[19]	王小萍, 唐晓波, 王迎春, 等. 52份茶树资源生化组分的表型多样性分析[J]. 茶叶科学, 2012, 32(2):129-134.
	WANG X P, TANG X B, WANG Y C, et al. Phenotypic diversity analysis of biochemical composition in 52 tea germplasms[J]. Journal of Tea Science, 2012, 32(2):129-134.(in Chinese with English abstract)
[20]	苏会, 刘建军, 贺巍, 等. 豫南地区茶树种质资源多样性初探[J]. 河南农业大学学报, 2016, 50(4):479-485.
	SU H, LIU J J, HE W, et al. Diversity analysis of tea germplasm in Southern Henan[J]. Journal of Henan Agricultural University, 2016, 50(4):479-485.(in Chinese with English abstract)
[21]	陈文怀. 中国茶树品种演化和分类的商榷[J]. 园艺学报, 1964(2):191-198.
	CHEN W H. A discussion on the evolution and classification of the Chinese tea varieties[J]. Acta Horticulturae Sinica, 1964(2):191-198.(in Chinese with English abstract)
[22]	中国科学院中国植物志编委会编. 中国植物志[M]. 北京: 科学出版社, 1998.
[23]	尹鹏, 刘威, 王广铭, 等. 茶树芽叶茸毛及茶毫研究进展[J]. 河南农业, 2016(27):44-46.
	YIN P, LIU W, WANG G M, et al. Advances in research on tea tree bud leaf trichomes and tea pubescence[J]. Agriculture of Henan, 2016(27):44-46. (in Chinese)

Diversity analysis of 30 tea (Camelia sinensis) germplasm resources in Chongqing based on agronomic traits and biochemical components

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 7

References 23

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	ZHANG Jingzhen, WANG Lianjun, LEI Jian, CHAI Shasha, YANG Xinsun, ZHANG Wenying. Genetic diversity analysis and construction of DNA fingerprint of yam (Dioscorea oppositeac Thunb.) germplasm by cpSSR marker [J]. Acta Agriculturae Zhejiangensis, 2021, 33(7): 1222-1233.
[2]	AN Hongwei, SONG Qinfei, NIU Suzhen. Study on genetic diversity,population structure and genetic differentiation of tea germplasm in Guizhou [J]. Acta Agriculturae Zhejiangensis, 2021, 33(7): 1234-1243.
[3]	XU Minmin, HUANG Ying, LI Bo, XU Yan, ZHANG Shuai, YAO Lingyun, WANG Zheng. Effect of biochar on wheat root-associated microbial community structures [J]. Acta Agriculturae Zhejiangensis, 2021, 33(3): 516-525.
[4]	WANG Qizhang, ZHANG Guangnan, WANG Lihui, TIAN Jie. Effects of different cultivation methods on growth and carbohydrate accumulation of Chinese chives [J]. Acta Agriculturae Zhejiangensis, 2021, 33(2): 288-297.
[5]	WANG Zhihui, PENG Hua, YANG Puxiang, JIANG Xinfeng, LI Wenjin, YUE Cuinan, LI Chen, LI Yansheng. Phenotypic variation and resource value evaluation of natural hybrid progenies of seventeen Huangjinju tea plants [J]. Acta Agriculturae Zhejiangensis, 2021, 33(2): 298-307.
[6]	WANG Yuxin, DENG Yanli, YAO Songlin, WANG Ying, WANG Jihong. Comparison of quality of Hawk tea (Litsea coreana var. sinensis) in four counties of Guizhou Province [J]. Acta Agriculturae Zhejiangensis, 2021, 33(1): 142-149.
[7]	HONG Xia, ZHAO Yongbin, QU Weidong, CHEN Yinlong, QIU Liping, WANG Jiaoyang. Comparative analysis on genetic diversity of Colocasia esculenta germplasm in Zhejiang Province based on phenotype and simple sequence repeats markers [J]. , 2020, 32(9): 1544-1554.
[8]	NIU Suzhen, ZHAO Zhifei, SONG Qinfei, CHEN Zhengwu. Eco-environmental diversity of wild tea germplasms in Guizhou Province [J]. , 2020, 32(7): 1223-1232.
[9]	YAN Fulin, WANG Bo, WEN Di, XU Wenfen, SUN Qingwen, WEI Shenghua. Genetic diversity analysis of Sabia parviflora based on chloroplast gene psbA-trnH sequence [J]. , 2020, 32(5): 810-815.
[10]	GUO Qinwei, ZHANG Ting, LIU Huiqin, ZHANG Xinhui, LI Chaosen, XIANG Xiaomin, ZHAO Dongfeng, WAN Hongjian. Evaluation of genetic diversity in Luffa germplasm resources in China based on ISSR molecular marker [J]. , 2020, 32(4): 616-623.
[11]	SHEN Di, CHEN Longzheng, LU Xiaohua, TAO Jianping, FENG Gucheng, LIU Jiexia, FENG Kai, YIN Lian, DING Xu, JIA Lili, XU Zhisheng, LIU Huiji, XIONG Aisheng. Resources evaluation of 29 celery varieties for autumn-winter cultivation in southern Jiangsu [J]. , 2020, 32(4): 653-660.
[12]	Yakup HASANJAN, Omar ABLIZ, Mardan ASKAR, Aliya SIDIK. Diversity characteristics of soil oribatid mites in 7 microenvironments in Xinjiang [J]. , 2020, 32(4): 696-704.
[13]	ZHAO Xingkai, SHI Haichun, YU Xuejie, YANG Shu, ZHAO Changyun, XIA Wei, KE Yongpei. Breeding potential analyses of 13 new inbred lines in maize [J]. Acta Agriculturae Zhejiangensis, 2020, 32(12): 2119-2127.
[14]	HU Qianwen, XU Yanhao, WANG Rong, ZHANG Wenying, HUA Wei, LYU Chao. Association analysis of four spike traits in barley [J]. , 2020, 32(11): 1941-1953.
[15]	SHEN Lu, LI Qinchao, TAKASHI Tanaka, TATSUYA Inamura, IRBIS Chagan. Efficiency of soil solarization on control of Chinese cabbage clubroot [J]. , 2020, 32(1): 98-107.