Potential objectives for gibberellic acid and paclobutrazol under salt stress in sweet sorghum (Sorghum bicolor [L.] Moench cv. Sofra)

Applied Biological Chemistry

Table 1 Effects of GA₃ and PBZ treatments on some growth parameters of sweet sorghum under salt stress

Salt	Treatment	Stem length (mm)	Root length (mm)	Root/shoot length ratio	Shoot fresh weight (mg)	Shoot dry weight (mg)	Root fresh weight (mg)	Root dry weight (mg)	Root/shoot dry weight ratio	Water content of leaves (mg)
0 (mM)	Control	220^b ± 6	116^cd ± 7	0.53^e ± 0.02	151^b ± 10	15^b ± 1	35^d ± 8	3.5^c ± 0.2	0.22^e ± 0.01	136^b ± 10
	17 µM PBZ	116^ef ± 6	145^a ± 7	1.25^a ± 0.13	99^de ± 7	11^c ± 1	58^b ± 9	4.9^ab ± 0.5	0.43^b ± 0.03	87d^de ± 6
	17 µM GA₃	253^a ± 10	126^bc ± 6	0.50^e ± 0.05	199^a ± 10	20^a ± 1	45^bcd ± 3	3.9^c ± 0.6	0.22^e ± 0.02	179^a ± 7
100 (mM)	Control	159^d ± 6	118^cd ± 7	0.75^d ± 0.08	116^cd ± 4	15^b ± 0.4	53^bc ± 9	5.5^a ± 0.3	0.37^cd ± 0.03	101^cd ± 4
	17 µM PBZ	102^f ± 11	134^ab ± 8	1.3^a ± 0.21	79^f ± 9	11^c ± 1	75^a ± 9	5.3^ab ± 0.9	0.49^a ± 0.06	69^f ± 9
	17 µM GA₃	196^c ± 12	107^de ± 12	0.55^e ± 0.03	125^c ± 8	15^b ± 1	38^cd ± 8	3.2^c ± 0.5	0.22^e ± 0.04	110^c ± 7
200 (mM)	Control	126^e ± 3	110^d ± 5	0.87^c ± 0.04	85^ef ± 13	12^c ± 1	45^bcd ± 7	3.9^c ± 0.4	0.32^d ± 0.01	73^ef ± 12
	17 µM PBZ	106^f ± 7	109^de ± 11	1.02^b ± 0.08	75^f ± 9	11^c ± 1	52^bcd ± 10	4.5^b ± 0.4	0.42^bc ± 0.06	64^f ± 8
	17 µM GA₃	167^d ± 13	98^e ± 6	0.59^e ± 0.03	102^de ± 14	14.8^b ± 2	38^cd ± 8	3.7^c ± 0.2	0.25^e ± 0.02	87^de ± 13

Values are means (± SD) of three replicates, and similar letters illustrated as superscripts in each column are not significant (p < 0.05)