根际盐分差异性分布对高粱幼苗生长发育的影响

张华文,王润丰,徐梦平,刘宾,陈二影,黄瑞冬,周宇飞,王海莲

Effects of Heterogeneous Salinity Across Rhizosphere on the Growth of Sorghum Seedlings

HuaWen ZHANG,RunFeng WANG,MengPing XU,Bin LIU,ErYing CHEN,RuiDong HUANG,YuFei ZHOU,HaiLian WANG

表3 分根盐处理对高粱光合参数和荧光参数的影响

Table 3 Effects of split-root salt stress treatments on photosynthetic and chlorophyll fluorescence parameters of sorghum

处理 Treatment 净光合速率 Pn (μmol CO2·m-2·s-1) 气孔导度 Gs (mol·m-2·s-1) 细胞间隙CO2浓度 Ci (μmol·mol-1) 蒸腾速率 Tr (mmol·m-2·s-1) 实际光化学效 ΦPSII 最大光化学效率 Fv/Fm 电子传递效率 ETR 0/0 7.83±0.25a 0.046±0.003a 116.40±16.10b 2.05±0.214a 0.780±0.032a 0.820±0.020a 3.225±0.083a 100/100 1.68±0.12d 0.016±0.003c 223.60±28.90a 0.77±0.125c 0.621±0.014b 0.726±0.010c 2.605±0.301b 50/150 4.30±0.16c 0.025±0.001b 122.33±4.74b 1.21±0.023b 0.656±0.012b 0.740±0.003bc 2.846±0.048ab 0/200 5.80±0.03b 0.030±0.001b 84.90±11.90b 1.43±0.071b 0.739±0.007a 0.776±0.004b 3.097±0.044ab