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 2 Radicle length, plumule length, radicle/plumule ratio, and fresh weight of C. obtusifolia seedlings treated with different ALA concentrations under salinity stress after germination is terminated ^a

Treatment	Radicle length (cm)	Plumule length (cm)	Radicle/plumule ratio	Fresh weight (mg)
CK1	2.79 ± 0.36a	4.12 ± 0.65a	0.67 ± 0.13c	162.7 ± 5.7a
CK2	2.33 ± 0.25c	2.51 ± 0.68d	0.93 ± 0.16a	113.6 ± 6.4d
CK3	2.81 ± 0.43a	4.14 ± 0.66a	0.68 ± 0.16c	165.58 ± 5.2a
T1	2.52 ± 0.34b	3.56 ± 0.75b	0.71 ± 0.09bc	140.3 ± 3.5b
T2	2.78 ± 0.31a	4.13 ± 0.49a	0.67 ± 0.21c	161.5 ± 4.8a
T3	2.65 ± 0.18ab	3.74 ± 0.66ab	0.71 ± 0..6bc	148.8 ± 3.1ab
T4	2.60 ± 0.76ab	3.27 ± 0.53c	0.79 ± 0.08b	130.6 ± 4.4c

^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.