干旱胁迫下春玉米叶片光合参数对叶温的响应

齐月, 张强, 胡淑娟, 王润元, 杨阳, 雷俊, 王鹤龄, 赵鸿, 褚超, 靳荣

Response of photosynthetic parameters to leaf temperature of spring maize under drought stress

QI Yue, ZHANG Qiang, HU Shujuan, WANG Runyuan, YANG Yang, LEI Jun, WANG Heling, ZHAO Hong, CHU Chao, JIN Rong

表1 不同处理春玉米七叶期叶片光响应生理特征参数

Tab.1 Physiological characteristic parameters of leaves light response at the seven leaf stage of spring maize under different treatments

处理 最大净光合速率 表观量子率 光补偿点 光饱和点 暗呼吸速率 决定系数 CK-25 31.355±2.382a 0.039±0.008a 20.8±1.162a 2 246.4±35.421b 3.7 771±0.143b 0.9 999±0.000 CK-35 40.953±2.581a 0.065±0.005a 22.0±2.532b 2 433.6±29.831a 3.2 248±0.085ab 0.9 998±0.002 CK-40 40.032±0.544b 0.033±0.007b 28.2±0.751a 2 512.2±22.451b 3.0 620±0.183b 0.9 999±0.000 WS-25 32.206±2.563a 0.083±0.003b 26.0±1.522bc 1 367.6±32.158d 3.7 023±0.114b 0.9 944±0.006 WS-35 35.513±1.427b 0.085±0.003b 26.0±2.427a 1 482.5±33.142a 3.8 124±0.052ab 0.9 944±0.006 WS-40 27.521±2.568a 0.059±0.006a 20.8±3.251b 1 482.2±33.142a 3.6 354±0.106a 0.9 942±0.007