膜下滴灌对棉花生育后期叶片与苞叶光合特性的影响
张超, 占东霞, 张亚黎, 罗宏海, 勾玲, 张旺锋*

Effects of Drip Irrigation on Photosynthetic Characteristics of Leaves and Bracts in Cotton at Late Growth Stage
ZHANG Chao, ZHAN Dong-Xia, ZHANG Ya-Li, LUO Hong-Hai, GOU Ling, ZHANG Wang-Feng*
图9 棉花叶片A与苞叶BPSII实际光化学效率 Φ PSII 的变化 缩写同 图1 。
Fig. 9 Changes of actual photochemical efficiency of PSII Φ PSII in cotton leaves A and bracts B Abbreviations are the same as those given in Fig. 1 .