干旱胁迫对玉米品种苗期叶片光合特性的影响

张兴华, 高杰, 杜伟莉, 张仁和^*, 薛吉全

Effects of Drought Stress on Photosynthetic Characteristics of Maize Hybrids at Seedling Stage

ZHANG Xing-Hua, GAO Jie, DU Wei-Li, ZHANG Ren-He^*, XUE Ji-Quan

图3 干旱胁迫下玉米品种陕单609和郑单958叶片PSII荧光诱导动力学OJIP曲线K-band的变化 A, B: V Oj = F t - F o F j - F o 进行标准化。CK: 正常供水; LS: 轻度干旱; MS: 中度干旱; SS: 重度干旱
Fig. 3 Changes in the shape of the Chl a fluorescence transient curves of Shaandan 609 A and Zhengdan 958 B under drought stress revealing K-band A and B: relative variable fluorescence between F o and F j [ V Oj = F t - F o F j - F o ]. The difference kinetics Δ V Oj = V Oj treatment - V Oj control in different drought treatments are shown. CK: control, LS: low drought stress, MS: moderate drought stress, SS: severe drought stress.