Table 2.
Effect of EBR on photosynthesis under low temperature stress in cucumber seedlings.
| No. | Pn (μmol·m−2·s−1) | Gs (mmol·m−2·s−1) | Ci (μmol·mol−1) | Tr (mmol·m−2·s−1) |
|---|---|---|---|---|
| NT | 9.09 ± 0.66 a | 0.17 ± 0.01 a | 207.25 ± 26.69 a | 3.74 ± 0.16 a |
| CK | 6.89 ± 0.25 b | 0.13 ± 0.01 b | 147.60 ± 11.30 b | 2.10 ± 0.22 bc |
| EBR | 8.30 ± 0.90 a | 0.17 ± 0.04 a | 201.64 ± 21.44 a | 3.47 ± 0.39 a |
| BZR | 5.60 ± 0.54 b | 0.11 ± 0.03 b | 104.26 ± 10.55 bc | 2.01 ± 0.36 b |
Means in the same category followed by different letters indicate significant differences at p < 0.05 using the LSD test. The data represent the means of four replications ± standard deviation. Pn, net photosynthetic rate; Gs, stomatal conductance; Ci, intercellular CO2 concentration; Tr, transpiration rate.