Table 3.

F value and significance for protein, total free amino acids, anthocyanin, and elements.

Year	Source of variance	Protein	Total free amino acids	Anthocyanin	Toxic trace elements			Essential trace elements				Major element
					Cr	Cd	Pb	Fe	Mn	Cu	Zn	Ca	Mg
2017-2018	Cultivar	78.58*	140.173**	53.25*	0.01	20.16*	4.86	0.52	0.24	3.56	9.63	13.61	10.57
	Fertilization method	91.48*	60.39*	1.05	18.02	37.45*	0.98	0.73	1.45	0.19	12.99	9.33	56.54*
	Cultivar×Fertilization method	1.40	0.95	564.25***	6.13*	0.76*	8.97**	113.51***	0.89	1.42	4.83*	26.34***	5.22*
2018-2019	Cultivar	80.34*	151.21**	49.39*	0.03	27.84*	12.44	0.74	0.78	0.16	10.67	11.77	11.32
	Fertilization method	106.62*	76.31*	1.14	20.72	57.47*	2.71	0.93	3.18	5.81	11.2	8.4	64.41*
	Cultivar×Fertilization method	1.26	0.25	716.15***	6.12*	1.78*	12.01**	179.50***	1.81	0.31	2.48*	33.87***	6.48*

*indicates a highly significant difference at P < 0.05; **indicates a highly significant difference at P < 0.01; ***indicates a highly significant difference at P < 0.001.