Table 1. Effects of low pH on Chlorophyll contents in ginger leaves under salt stress.

T1 (pH 6, 0 salinity), T2 (pH 4, 0 salinity), T3 (pH 6, 100 mmol L⁻¹ salinity) and T4 (pH 4, 100 mmol L⁻¹ salinity). Different small letters in a column of the same treatment days indicate significance at the 5% level.

Treatment	Chl a (mg g−1 FW)	Chl b (mg g−1 FW)	Car (mg g−1 FW)	Chl a+b (mg g−1 FW)	Root activity (µg h−1 g FW)
T1	1.93 ± 0.01a	0.99 ± 0.0211a	0.79 ± 0.0122a	2.92 ± 0.013a	64.84 ± 1.36a
T2	1.8 ± 0.01b	0.82 ± 0.0049b	0.76 ± 0.0166b	2.62 ± 0.016b	61.29 ± 1.21b
T3	1.75 ± 0.01c	0.71 ± 0.0142c	0.71 ± 0.0068c	2.45 ± 0.017c	47.37 ± 0.62d
T4	1.78 ± 0.01c	0.74 ± 0.0102c	0.73 ± 0.0115c	2.51 ± 0.019c	52.15 ± 1.46c