Table 3.

Mineral content in wheat grains under drought stress and Olive mill wastewater treatment.

Parameter	Control	Stress	OMWW	OMWW + Stress
P (mg g− 1)	4.43 ± 0.44 a	3.68 ± 0.59 b	4.87 ± 0.51 a	4.82 ± 0.56 a
S (mg g− 1)	0.98 ± 0.13 a	0.96 ± 0.16 a	1.13 ± 0.14 a	1.26 ± 0.21 a
K (mg g− 1)	7.90 ± 0.45 b	7.42 ± 0.57 b	10.35 ± 0.96 a	10.44 ± 0.55 a
Mg (mg g− 1)	1.15 ± 0.24 a	1.22 ± 0.14 a	1.26 ± 0.18 a	1.33 ± 0.19 a
Ca (µg g− 1)	70.27 ± 8.88 b	99.35 ± 10.12 a	117.82 ± 15.12 a	102.98 ± 11.16 a
Na (µg g− 1)	9.93 ± 0.89 b	9.60 ± 0.76 b	13.09 ± 0.96 a	13.52 ± 1.12 a
Zn (µg g− 1)	30.49 ± 4.11 a	27.70 ± 3.79 a	33.42 ± 3.34 a	35.49 ± 5.02 a
Fe (µg g− 1)	31.02 ± 1.88 b	31.61 ± 3.12 b	48.60 ± 3.35 a	49.18 ± 2.22 a
Mn (µg g− 1)	4.02 ± 0.27 b	2.76 ± 0.31 c	6.35 ± 0.44 a	6.75 ± 0.49 a

At a 5% probability level, the Tukey HSD test reveals that sharing the same letter(s) is not significantly different.