Population structure analysis to explore genetic diversity and geographical distribution characteristics of wild tea plant in Guizhou Plateau

Table 7 ANOVA for soil nutrients and altitude factors in different groups

Type		Number	SOM	TN	AN	TP	AP	AK	Exchangeable Al	Exchangeable Mg	Exchangeable Ca	pH	MAT	MAR
Species	C. tachangensis	101	49.15a	2.25a	129.14a	1.86a	5.23a	64.37a	0.72b	1.51a	5.34a	5.14a	15.3b	1326a
Species	C. gymnogyna	58	38.06b	1.95a	110.81b	0.44b	8.35a	57.30b	0.90a	0.70b	4.79b	4.52b	15.8a	1194b
Altitude	H1	39	58.28a	2.58a	128.09a	1.75a	5.75b	63.54a	0.61c	1.49a	5.62a	5.25a	14.3b	1321a
	H2	65	44.52a	2.09b	130.57a	1.59a	5.99ab	65.52a	0.75b	1.31a	5.41b	4.94b	15.8a	1286a
	H3	55	36.46b	1.88b	108.86c	0.77b	7.25a	56.15b	0.95a	0.92b	4.48b	4.65c	15.9a	1238b
Classes	CR	92	50.92a	2.31a	131.34a	1.76a	5.28b	64.28a	0.66b	1.49a	5.52a	5.12a	15.2b	1319a
Classes	SR	67	37.12b	1.89b	110.25b	0.77b	7.86a	58.37b	0.96a	0.85b	4.62b	4.63b	15.8a	1221b
Areas	I	48	46.61a	2.16ab	133.48a	1.62a	5.08b	67.07a	0.58b	1.41a	5.35a	5.09b	15.8a	1320a
	II	44	57.81a	2.49a	129.01a	1.92a	5.50b	61.24b	0.74a	1.56a	5.71a	5.15a	14.6b	1318a
	III	46	36.20b	1.89b	112.00b	1.03b	7.74a	57.74b	0.99a	0.95b	4.59b	4.72c	15.8a	1240b
	IV	21	39.12b	1.89b	106.41b	0.19c	8.15a	59.75b	0.88a	0.62b	4.67b	4.42d	15.8a	1179b
Groups	GP01	67	37.12c	1.89c	110.25c	0.77b	7.86a	58.37a	0.96a	0.85b	4.62b	4.63c	15.81a	1221b
	GP02	45	55.26a	2.49a	128.47ab	1.77a	5.65b	63.46a	0.64b	1.52a	5.69a	5.24a	14.46b	1324a
	GP03	47	46.77b	2.15b	134.08a	1.75a	4.93b	65.07a	0.68b	1.45a	5.36a	5.01b	15.97a	1315a
All	all	159	45.11	2.14	122.45	1.34	6.37	61.79	0.79	1.21	5.14	4.92	15.5	1278

SOM soil organic matter, TN total nitrogen, AN alkaline nitrogen, TP total phosphorous, AP available phosphorous, AK available potassium, MAT,mean annual temperature, MAR mean annual rainfall. In the same type and line, the different letters indicate a significant difference at P = 0.05 level by t-test. Species contain C. tachangensis and C. gymnogyna. Altitude contains H1, H2, and H2, which are the first (> 1400 m), second (1400–1100 m), and third (< 1100 m) altitude gradient, respectively. Classes contain CR (Carbonate Rock) and SR (Silicate Rock). Areas contain I Dolomite sub-suitable area, II Dolomitic limestone suitable area, III Clastic rock most suitable area, and IV Purple clastic rock suitable area

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