Table 3.

Effect of melatonin on phenolic, total soluble sugars (TSS  %), proline and free amino acids contents (mg/g wt) of two flax varieties under different water irrigation requirements (combined data of two seasons)

Varieties	Drought stress (%)	Melatonin (mM)	TSS	Proline	Free amino acids
Letwania-9	100	0	4.14 ± 0.05	28.00 ± 1.55	233.9 ± 15.59
		2.5	4.25 ± 0.04	30.00 ± 0.32	259.7 ± 3.20
		5.0	4.93 ± 0.31	30.85 ± 0.15	229.9 ± 0.29
		7.5	4.61 ± 0.09	30.85 ± 0.29	311.6 ± 2.89
	75	0	5.98 ± 0.21	40.72 ± 0.44	323.9 ± 6.35
		2.5	6.18 ± 0.09	41.12 ± 0.34	339.6 ± 0.88
		5.0	6.77 ± 0.03	46.05 ± 0.10	390.9 ± 0.46
		7.5	6.27 ± 0.07	41.62 ± 1.45	363.3 ± 3.47
	50	0	5.79 ± 0.04	48.18 ± 3.43	500.6 ± 10.26
		2.5	6.94 ± 0.04	48.78 ± 0.88	503.0 ± 11.48
		5.0	7.93 ± 0.11	52.25 ± 0.87	546.3 ± 0.83
		7.5	6.43 ± 0.22	50.78 ± 0.07	522.9 ± 1.87
Sakha-2	100	0	5.45 ± 0.06	15.65 ± 0.54	178.8 ± 5.65
		2.5	5.88 ± 0.08	17.95 ± 1.05	200.4 ± 0.76
		5.0	7.77 ± 0.26	22.45 ± 0.25	246.9 ± 9.93
		7.5	7.59 ± 0.41	20.31 ± 0.55	225.4 ± 0.61
	75	0	7.07 ± 0.19	24.84 ± 0.31	304.7 ± 3.19
		2.5	8.92 ± 0.23	29.05 ± 0.36	313.2 ± 5.83
		5.0	9.31 ± 0.35	31.47 ± 0.58	334.3 ± 3.89
		7.5	7.94 ± 0.35	29.84 ± 0.46	321.7 ± 6.75
	50	0	7.58 ± 0.31	40.12 ± 0.63	422.4 ± 3.10
		2.5	8.96 ± 0.12	40.45 ± 0.49	428.3 ± 3.67
		5.0	9.76 ± 0.33	43.12 ± 0.12	464.0 ± 3.82
		7.5	8.40 ± 0.19	41.31 ± 0.35	430.9 ± 6.87
LSD at 5%			0.77	1.67	33.17

Each value represents the mean of three replicates ± SE