弱光涝渍复合胁迫对夏玉米产量及光合特性的影响

于维祯,张晓驰,胡娟,邵靖宜,刘鹏,赵斌,任佰朝

Combined Effects of Shade and Waterlogging on Yield and Photosynthetic Characteristics of Summer Maize

YU WeiZhen,ZHANG XiaoChi,HU Juan,SHAO JingYi,LIU Peng,ZHAO Bin,REN BaiZhao

表2 遮阴、淹水及其复合处理对玉米光合速率及气体交换参数的影响（2019）

Table 2 Effects of shading, waterlogging and their combined treatment on photosynthetic rate and gas exchange parameters of maize (2019)

处理 Treatment 净光合速率 Pn (μmol·m-2·s-1) 蒸腾速率 Tr (μmol·m-2·s-1) 气孔导度 Gs ((μmol·m-2·s-1) 胞间二氧化碳浓度 Ci (μmol·m-2·s-1) CK 37.7a 6.75a 357a 172c V3-W 21.5e 4.63d 190e 248a V3-S 35.9ab 5.76b 330bc 185bc V3-S-W 21.2e 4.11d 181e 260a V6-W 22.7de 4.71cd 197de 238a V6-S 35.9ab 5.69b 346ab 201b V6-S-W 22.2e 3.99e 189e 239a VT-W 35.3b 5.66b 316c 189bc VT-S 25.4c 5.30bc 212d 182bc VT-S-W 24.5cd 5.30bc 194de 179bc 显著性 Significant S ** ** ** ** W ** ** ** * G ** ** ns ** S×W ** * * ns S×G ** ns ns ** W×G ** ** ns ** S×W×G ns ns ns ns