Role of 5-aminolevulinic acid in the salinity stress response of the seeds and seedlings of the medicinal plant Cassia obtusifolia L.

Botanical Studies

Table 1 Germination vigor (GV), germination rate (GR), germination index (GI), and vigor index (VI) of C. obtusifolia seeds treated with different ALA under salinity stress ^a

Treatment	GV	GR	GI	VI
CK1	76.31 ± 4.01a	98.24 ± 7.01a	89.94 ± 3.01a	11.37 ± 1.12a
CK2	52.78 ± 7.23c	71.29 ± 7.34d	48.66 ± 5.32d	6.38 ± 0.83d
CK3	79.96 ± 5.49 a	99.12 ± 6.69 a	90.15 ± 4.98 a	11.52 ± 0.98 a
T1	60.44 ± 6.13b	81.33 ± 6.23b	75.36 ± 4.13b	8.03 ± 1.24b
T2	78.28 ± 6.15a	98.16 ± 8.19a	89.07 ± 6.15a	10.86 ± 1.39a
T3	65.32 ± 6.29ab	83.27 ± 5.46ab	80.42 ± 4.08ab	8.82 ± 1.27ab
T4	59.68 ± 6.23b	78.31 ± 8.44c	69.89 ± 5.53c	8.02 ± 1.44c

^aData are the means of three independent replicates. Means ± standard errors (n = 9) within each column followed by different letters are significantly different at the P = 0.05 level.