Table II.

Effect of salt stress on hypocotyl growth after 28 d of culture in NB2020 medium supplemented with NaCl

Line	NaCl (mm)	FW		DW
		1	2	1	2
		g
Control	0	0.340 ± 0.076 c	0.473 ± 0.067 b	0.028 ± 0.005 c	0.038 ± 0.004 c
	125	0.234 ± 0.025 d	0.290 ± 0.031 c	0.024 ± 0.002 d	0.031 ± 0.002 d
		(−31)	(−39)	(−14)	(−18)
	175	0.124 ± 0.016 e	0.093 ± 0.009 d	0.015 ± 0.001 e	0.011 ± 0.001 e
		(−64)	(−80)	(−46)	(−71)
TG2-4	0	0.391 ± 0.049 b	0.540 ± 0.057 a	0.031 ± 0.003 b	0.043 ± 0.004 b
	125	0.478 ± 0.035 a	0.532 ± 0.062 a	0.045 ± 0.002 a	0.050 ± 0.004 a
		(+22)	(−1.5)	(+45)	(+16)
	175	0.139 ± 0.012 e	0.098 ± 0.009 d	0.017 ± 0.001 e	0.012 ± 0.001 e
		(−64)	(−82)	(−45)	(−72)

1, Explants type-1 (nearest to the apex); 2, explants type-2 (lower). Lines evaluated: control (cv P-73) and TG2-4. For each line and treatment, values are given as the mean of 24 plants ± se and the percentage change (in parentheses) is calculated as [(M/m) − 1] × 100, where M and m are the values of the considered parameter in media with and without NaCl, respectively. Means within each column followed by different letters are significantly different according to the LSD test (P ≤ 0.05).