The Impact Of Foliar Salicylic Acid In Salt-Exposed Guava (Psidium Guajava L.) Seedlings

Figures & data

Table 1. The analysis of variance of salinity and salicylic acid on the measured parameters in guava

Source of variation	Degree of freedom	Peroxidase	Superoxide dismutase	Ferric reducing antioxidant power	DPPH scavenging activity	Total flavonoid	Total phenol
Salinity	1	^a 0.15^bb	5.13^b	34412.91^b	667.20^b	8.23^b	97.22^bb
Salicylic acid	1	0.04^bb	669.08^b	19805.34^b	794.61^b	20.11^b	45.58^bb
Salinityb Salicylic acid	1	0.17^bb	41.98^b	2304.82^b	480.80^b	0.57^b	1.45^bb
Error	20	0.12	1019.85	16215.50	324.01	3.73	72.48

a The Mean Square values are given.

b and **: state significance at 5 and 1% respectively

Salinityb Salicylic acid: states the interaction of Salinity and Salicylic acid

Figure 1. The interaction of salicylic acid and NaCl on POD (A) and SOD (B) activities in guava seedlings. Means ± SD of six replicates are given. The same letters indicate no statistically significant difference (Tukey, p < .01)

Figure 2. The interaction of salicylic acid and NaCl on the FRAP (A) and DPPH (B) capacity in guava seedlings. Means ± SD of six replicates are given. The same letters indicate no statistically significant difference (Tukey, p < .01)

Figure 3. The interaction of salicylic acid and NaCl on TFC (A) and TPC (B) in guava seedlings. Means ± SD of six replicates are given. The same letters indicate no statistically significant difference (Tukey, p < .01)

Table 2. The correlation analysis of guava physiological parameters

	Total phenol	Total flavonoid	Ferric reducing antioxidant power	Peroxidase	Superoxide dismutase	DPPH scavenging activity
Total phenol	1
Total flavonoid	0.99**	1
Ferric reducing antioxidant power	0.97**	0.95**	1
Peroxidase	−0.16	−0.20	0.01	1
Superoxide dismutase	0.99**	0.98**	0.99**	−0.03	1
DPPH scavenging activity	0.95**	0.97**	0.87**	−0.43	0.91**	1