(b).

Group	K		Ca		Mg		Dry weight		Fresh weight		Plant height		Root length
	F	p	F	p	F	p	F	p	F	p	F	p	F	p
HG-15	17.668	0.001∗∗	7.003	0.021∗	47.294	≤0.001∗∗	213.390	≤0.001∗∗	65.135	≤0.001∗∗	213.390	≤0.001∗∗	65.135	≤0.001∗∗
Salt	21.402	≤0.001∗∗	11.735	0.001∗∗	25.205	≤0.001∗∗	155.056	≤0.001∗∗	72.974	≤0.001∗∗	155.056	≤0.001∗∗	72.974	≤0.001∗∗
Salt × HG − 15	1.415	0.281	0.168	0.847	1.018	0.391	14.222	0.001 ∗∗	4.887	0.028 ∗	14.222	0.001 ∗∗	4.887	0.028 ∗