Assessment of the changes in growth, photosynthetic traits and gene expression in Cynodon dactylon against drought stress

Table 1 C. dactylon populations collected from different latitudes and longitude in China

Gradient	Population code	Localities	Latitude(N)	Longitude(E)	Altitude/m	Annual average temperature/°C	Annual average precipitation/mm
Longitude gradients	1	Tianshui	34°32’43”	105°57’34”	1050	11.4	500.7
	2	Baoji	34°21’54”	107°41’03”	630	13.5	645.9
	3	Sanmenxia	34°42’29”	111°03’49”	340	14	558.1
	4	Zhengzhou	34°54’04”	113°38’20”	90	14.7	640.8
	5	Shanxian	34°46’31”	116°09’11”	30	14.2	621.4
	6	Zaozhuang	34°38’48”	117°49’20”	89	14.4	820.3
	7	Lianyungang	34°46’09”	119°27’06”	50	14.5	883.9
Latitude gradients	8	Zhongshan	22°35’40”	113°23’17”	0	22.0	1846.8
	9	Youxian	27°00’59”	113°23’07”	342	18.1	1518.4
	10	Linxiang	29°28’32”	113°26’48”	45	16.8	1582.5
	11	Xiaochang	31°18’59”	114°02’15”	30	16.8	1138.0
	12	Zhumadian	33°09’47”	114°03’45”	85	15.2	990.4
	13	Cixian	36°18’40”	114°11’51”	107	13.4	509.2

ISSN: 1471-2229