田间密植诱导抽穗期玉米叶片衰老时的光合作用机制

吴含玉,张雅君,张旺锋,王克如,李少昆,姜闯道

Photosynthetic characteristics of senescent leaf induced by high planting density of maize at heading stage in the field

Han-Yu WU,Ya-Jun ZHANG,Wang-Feng ZHANG,Ke-Ru WANG,Shao-Kun LI,Chuang-Dao JIANG

图6 栽培密度对抽穗期玉米穗位叶和穗下第4叶气体交换参数的影响 (A)净光合速率; (B)气孔导度; (C)蒸腾速率; (D)细胞间隙二氧化碳浓度。LD: 低密度; MD: 中密度; HD: 高密度。柱上不同字母表示不同处理差异在 0.05 水平显著。

Fig. 6 Effects of planting density on gas exchange parameters of ear leaf and the fourth leaf below ear of maize at heading period (A): net photosynthetic rate; (B): stomatal conductance; (C): transpiration rate; (D): intercellular CO2 concentration. LD: low planting density; MD: medium planting density; HD: high planting density. Bars superscripted by different letters are significantly different at the 0.05 probability level among different treatments.