Table 1. Effects of exogenous spermidine on tomato seedling fresh weight under salinity-alkalinity stress.
Treatment | Shoot fresh weight (g) | Root fresh weight (g) | Stem fresh weight (g) | Leaf freshweight (g) | R/S fresh weight |
CK | 40.726±2.066a | 6.743±0.276a | 17.968±1.263a | 22.759±0.946a | 0.166±0.007a |
CS | 43.578±3.130a | 7.400±0.650a | 18.348±1.737a | 25.231±1.543ab | 0.170±0.007a |
S | 22.482±0.711b | 3.718±0.338b | 5.649±0.555b | 16.834±1.232c | 0.167±0.020a |
SS | 26.050±0.938b | 3.911±0.272b | 6.877±0.940b | 19.172±0.906bc | 0.150±0.008a |
Note: Data were measured after salinity-alkalinity treatment for 4 days. Each value represents mean ± standard error of four independent experiments (n = 4). Different letters indicate significant differences between treatments (P<0.05).
Abbreviations: CK, 0 mM salinity-alkalinity plus 0 mM Spd; CS, 0 mM salinity-alkalinity plus 0.25 mM Spd; S, 75 mM salinity-alkalinity plus 0 mM Spd; SS, 75 mM salinity-alkalinity plus 0.25 mM Spd.