不同抗旱性甘薯品种叶片生理性状差异及抗旱指标筛选

张海燕, 解备涛, 姜常松, 冯向阳, 张巧, 董顺旭, 汪宝卿, 张立明, 秦桢, 段文学

Screening of leaf physiological characteristics and drought-tolerant indexes of sweetpotato cultivars with drought resistance

ZHANG Hai-Yan, XIE Bei-Tao, JIANG Chang-Song, FENG Xiang-Yang, ZHANG Qiao, DONG Shun-Xu, WANG Bao-Qing, ZHANG Li-Ming, QIN Zhen, DUAN Wen-Xue

表6 功能叶生理性状与抗旱系数的相关分析

Table 6 Correlation analysis of physiological characteristics of functional leaves and drought resistance coefficient

年份Year	生育期 Growth stage	功能叶叶绿素含量 Chlorophyll content of functional leaves		功能叶相对含水量 Relative water content of functional leaves		功能叶相对电导率 Relative electrical conductivity of functional leaves
年份Year	生育期 Growth stage	对照Control	干旱Drought	对照Control	干旱Drought	对照Control	干旱Drought
2012	40 DAP	0.45	0.61^*	0.27	0.58^*	-0.15	-0.52^*
	60 DAP	0.42	0.61^*	0.20	0.62^*	-0.17	-0.55^*
	80 DAP	0.41	0.58^*	0.05	0.73^**	-0.29	-0.63^*
	100 DAP	0.15	0.62^*	0.19	0.65^**	-0.26	-0.59^*
2013	40 DAP	0.30	0.52^*	0.41	0.62^*	-0.18	-0.47
	60 DAP	0.10	0.47	0.43	0.60^*	-0.19	-0.51
	80 DAP	0.49	0.72^**	0.37	0.63^*	-0.25	-0.59^*
	100 DAP	0.46	0.66^**	0.31	0.64^*	-0.24	-0.56^*