灌浆期干旱胁迫对不同小麦品种的生理性状与根系生长的影响

薛鑫雨, 詹文博, 陈新宜, 周瑞祥, 王永霞, 薛瑞丽, 李华, 汪月霞, 李艳

Effects of Drought Stress during Grain Filling Period on Physiological and Root Characteristics of Different Wheat Cultivars

Xue Xinyu, Zhan Wenbo, Chen Xinyi, Zhou Ruixiang, Wang Yongxia, Xue Ruili, Li Hua, Wang Yuexia, Li Yan

表4 干旱胁迫对不同品种小麦气孔孔径、气孔开度和Pn的影响

Table 4 Effects of drought stress on stomatal aperture size, stomatal open size and Pn of different wheat varieties

处理Treatment 品种Variety 气孔孔径Stomatal aperture size (μm) 气孔开度Stomatal open size (μm) Pn [μmol/(m2·s)] 干旱胁迫7 d 7 d after drought stress CK 郑麦1860 0.63±0.04a 0.30±0.02a 26.30±0.54a 百农207 0.54±0.01ab 0.30±0.04a 25.03±0.47b 周麦18 0.55±0.04ab 0.30±0.03a 24.23±0.52c D 郑麦1860 0.55±0.04ab 0.15±0.01b 23.23±0.26cd 百农207 0.53±0.00b 0.11±0.01c 22.57±0.52d 周麦18 0.53±0.05b 0.06±0.01d 19.10±0.42e 复水后2 d 2 d after rewatering CK 郑麦1860 0.62±0.03a 0.22±0.00a 26.30±0.54a 百农207 0.51±0.01c 0.18±0.01b 25.43±0.47b 周麦18 0.66±0.02a 0.17±0.00b 24.30±0.62b D 郑麦1860 0.50±0.02c 0.19±0.01b 25.40±0.56ab 百农207 0.53±0.02bc 0.13±0.00c 24.57±0.59b 周麦18 0.57±0.02b 0.12±0.00c 21.10±0.57c