淹水胁迫下玉米自交系苗期的形态生理差异

郑飞, 汪丽霞, 刘瑞响, 孔令杰, 陈艳萍, 袁建华, 崔亚坤

Morphological and Physiological Differences of Maize Inbred Lines at Seedling Stage under Waterlogging Stress

Zheng Fei, Wang Lixia, Liu Ruixiang, Kong Lingjie, Chen Yanping, Yuan Jianhua, Cui Yakun

表4 玉米自交系苗期淹水胁迫下各形态生理指标耐涝指数间的相关性分析

Table 4 Correlation analysis of morphological and physiological indexes under waterlogging stress at maize seedling stage

指标 Index	φ_PSⅡ	NPQ	SPAD	叶片厚度 Leaf thickness	叶面积 Leaf area	株高 Plant height	根长 Root length	总根数 Root number	根干物重 Root biomass	茎干物重 Stem biomass	叶干物重 Leaf biomass	总干物重 Total biomass
NPQ	-0.80^**
SPAD	-0.35^*	-0.41^*
叶片厚度Leaf thickness	-0.04	-0.03	-0.37^*
叶面积Leaf area	-0.12	-0.23	-0.22	0.03
株高Plant height	-0.21	-0.30	-0.53^**	-0.11	0.44^**
根长Root length	-0.01	-0.13	-0.00	-0.01	0.14	-0.06
根数Root number	-0.07	-0.10	-0.22	0.10	0.50^**	-0.35^*	-0.11
根干物重Root biomass	-0.15	-0.02	-0.38^*	0.08	0.56^**	-0.34^*	-0.33	-0.21
茎干物重Stem biomass	-0.13	-0.06	-0.49^**	0.10	0.50^**	-0.55^**	-0.02	-0.34^*	0.58^**
叶干物重Leaf biomass	-0.16	-0.22	-0.55^**	0.29	0.75^**	-0.52^**	-0.09	-0.50^**	0.61^**	-0.78^**
总干物重Total biomass	-0.04	-0.10	-0.53^**	0.22	0.71^**	-0.51^**	-0.15	-0.41^*	0.82^**	-0.87^**	-0.92^**
根冠比Root/shoot tatio	-0.34^*	-0.21	-0.04	-0.10	0.07	-0.12	-0.42^*	-0.13	0.68^**	-0.13	-0.09	0.16