. 2014 Oct 23;9(10):e110855. doi: 10.1371/journal.pone.0110855

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±2.066^a	6.743±0.276^a	17.968±1.263^a	22.759±0.946^a	0.166±0.007^a
CS	43.578±3.130^a	7.400±0.650^a	18.348±1.737^a	25.231±1.543^ab	0.170±0.007^a
S	22.482±0.711^b	3.718±0.338^b	5.649±0.555^b	16.834±1.232^c	0.167±0.020^a
SS	26.050±0.938^b	3.911±0.272^b	6.877±0.940^b	19.172±0.906^bc	0.150±0.008^a

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.