Table 4.

Bilateral effect of zinc (Zn) levels with plant nutrients on physiological attributes in tomato plants inoculated with Alternaria solani (AS) after 15-D of transplantation

Parameters	Zinc dose (mg/kg)	−ve Control	+ ve Control AS	NPK+AS	Mg+AS	B+AS	Mean (F)
Total chlorophyll content (mg/g FW)	0	2.55 d–g	1.72 g	2.21 e–g	2.67 c–g	1.99 fg	2.23 B
	2.5	3.12 b–e	2.54 d–g	3.76 ab	3.46 a–d	2.77 c–f	3.13 A
	5.0	3.37a–d	2.76 c–f	4.12 a	3.59 a–c	3.38 a–d	3.44 A
	Mean (F)	3.01AB	2.34 C	3.36 A	3.24 AB	2.71 BC
Carotenoids (mg/g FW)	0	5.34 de	4.22 f	4.82 ef	4.78 ef	4.30 f	4.69 C
	2.5	5.69 c–e	5.27 de	6.53 bc	6.12 b–d	4.80 ef	5.68 B
	5.0	6.67 b	5.35 de	7.76 a	6.98 ab	5.69 ce	6.49 A
	Mean (F)	5.90A	4.95 B	6.37 A	5.96 A	4.93 B
Total phenolic content (mg/g FW)	0	7.89 i	10.22 e–h	11.02 d–f	9.88 f–h	10.3 e–h	9.9 C
	2.5	8.89 hi	11.24 c–f	12.00 b–e	10.79 d–g	11.45 b–f	10.9 B
	5.0	8.97 g–i	13.21 ab	14.02 a	12.23 a–d	12.98 a–c	12.3 A
	Mean (F)	8.58 C	11.56 AB	12.35 A	10.97 B	11.58 AB
Total protein content (mg/g FW)	0	0.27 i	0.46 gh	0.55 fg	0.47 gh	0.52 f–h	0.45 C
	2.5	0.43 h	0.83 bc	0.91 ab	0.62 ef	0.66 e	0.69 B
	5.0	0.43 h	0.86 bc	0.99 a	0.70 de	0.79 cd	0.75 A
	Mean (F)	0.38 D	0.72 B	0.81 A	0.60 C	0.66 BC

Values with same lower case (rows) and upper case (rows and column) show the insignificant difference (P ≤ 0.05) as determined by LSD Test.