. 2023 Mar 13;14:1135943. doi: 10.3389/fpls.2023.1135943

Table 1.

Height, total dry weight, chlorophyll a, chlorophyll b, carotenoids, and Fv/Fm value in tomato seedlings treated with melatonin (150 μM) and cPTIO (100 μM) under NaCl (150 mM) treatment.

	Height (cm)	Total dry weight (g)	Chlorophyll a (mg/gFW)	Chlorophyll b (mg/gFW)	Carotenoids (mg/gFW)	Fv/Fm
CT	20.70 ± 0.87^ab	3.40 ± 0.18^a	2.25 ± 0.11^a	0.933 ± 0.127^a	0.630 ± 0.046^ab	0.544 ± 0.014^a
M	21.83 ± 0.75^a	3.46 ± 0.13^a	2.23 ± 0.09^a	0.950 ± 0.092^a	0.643 ± 0.050^a	0.549 ± 0.012^a
M + cPTIO	20.00 ± 0.82^b	3.04 ± 0.14^b	2.12 ± 0.13^a	0.907 ± 0.084^a	0.650 ± 0.041^a	0.524 ± 0.012^b
S	14.63 ± 0.55^e	2.14 ± 0.08^d	0.78 ± 0.09^d	0.377 ± 0.035^cd	0.347 ± 0.035^d	0.403 ± 0.011^e
S + M	18.10 ± 0.63^c	2.83 ± 0.12^c	1.85 ± 0.09^b	0.727 ± 0.055^b	0.577 ± 0.035^b	0.497 ± 0.012^c
S + cPTIO	13.90 ± 0.40^e	2.00 ± 0.10^d	0.64 ± 0.06^d	0.310 ± 0.020^d	0.313 ± 0.025^d	0.395 ± 0.012^e
S + M + cPTIO	16.10 ± 0.36^d	2.20 ± 0.07^d	1.02 ± 0.08^c	0.453 ± 0.035^c	0.420 ± 0.031^c	0.423 ± 0.010^d

The same letters in each column display no significant differences at the p < 0.05 based on the LSD test (means ± SD, n = 5), CT, control; M, melatonin; S, salinity.