Table 2.

Effect of treatment on N, P, K, and uptake of Ni concentration of shoot and root.

Stress	Treatment	Shoot N (%)	Shoot P (%)	Shoot K (%)	Leaves Ni (µg/g)
0Ni	Control	0.87c	0.42c	0.63c	0.20de
	RB	0.88c	0.45b	0.64bc	0.18f
	0.40 GABA	0.92b	0.47ab	0.66b	0.14g
	RB + 0.40GABA	0.96a	0.48a	0.68a	0.10h
80 Ni stress	Control	0.78f	0.34f	0.57f	1.29a
	RB	0.80e	0.36e	0.59e	0.27b
	0.40 GABA	0.81e	0.38e	0.61de	0.23c
	RB + 0.40GABA	0.85d	0.40d	0.63cd	0.22cd

Stress	Treatment	Root N (%)	Root P (%)	Root K (%)	Root Ni (µg/g)
0Ni	Control	0.83cd	0.068c	0.23c	0.64e
	RB	0.85bc	0.071b	0.25b	0.12g
	0.40 GABA	0.89ab	0.073b	0.26ab	0.54f
	RB + 0.40GABA	0.91a	0.076a	0.27a	0.31h
80 Ni stress	Control	0.62g	0.061f	0.16f	10.58a
	RB	0.71f	0.062ef	0.18e	7.54b
	0.40 GABA	0.75ef	0.063de	0.19e	6.14c
	RB + 0.40GABA	0.79de	0.065d	0.21d	5.35d

Values are an average of 4 replicates. Different letters showed significant changes at p ≤ 0.05, Tukey Test. A. fabrum = RB.