Table 3 Gas exchange characteristics of cotton cultivars grown with different levels and modes of Zn application under alkaline calcareous conditions
From: Zinc nutrition optimization for better cotton productivity on alkaline calcareous soil
Treatments | Photosynthetic rate /(µmol CO2·m−2·s−1) | Stomatal conductance /(mol·m−2·s−1) | Transpiration rate /(mg H2O·m−2·s−1) | |||
|---|---|---|---|---|---|---|
CIM-663 | Cyto-124 | CIM-663 | Cyto-124 | CIM-663 | Cyto-124 | |
Control | 5.93fg | 5.78g | 0.133de | 0.126e | 3.36de | 3.29e |
SZn5 | 6.97ef | 6.37f | 0.163d | 0.153d | 4.17cd | 3.78d |
SZn10 | 8.52d | 6.70f | 0.193c | 0.183c | 4.68bc | 4.27c |
SZn15 | 9.29c | 8.10de | 0.197c | 0.190c | 5.57a | 4.29c |
FZn0.5 | 6.74ef | 6.17fg | 0.156d | 0.153d | 4.17cd | 4.10cd |
FZn1 | 7.70de | 6.98ef | 0.173cd | 0.213bc | 4.60bc | 4.46c |
SZn5 + FZn0.5 | 8.78cd | 7.36e | 0.193c | 0.180cd | 4.97b | 4.24c |
SZn5 + FZn1 | 9.18cd | 8.43d | 0.220bc | 0.226b | 4.98b | 4.72bc |
SZn10 + FZn0.5 | 9.63bc | 8.34d | 0.216bc | 0.206bc | 5.20ab | 4.83b |
SZn10 + FZn1 | 11.42a | 9.94bc | 0.256ab | 0.253ab | 5.37ab | 4.86b |
SZn15 + FZn0.5 | 10.57ab | 9.29c | 0.230b | 0.216bc | 5.28ab | 4.75bc |
SZn15 + FZn1 | 10.46b | 9.88bc | 0.283a | 0.243b | 5.71a | 4.94b |