Table 9.

The nitrates content of lettuce plants grown under different plasma activated water (PAW I and PAW II) treatments and pot volumes (V1 and V2) at 50, 57 and 64 DAT.

Treatment	Pot volume	Nitrates content (mg KNO3/g DW)
		50 DAT	57 DAT	64 DAT
Control	V1	0.238 ± 0.0095a	0.098 ± 0.0275a	0.108 ± 0.0176a
	V2	17.626 ± 1.7759b	35.178 ± 3.4118c	23.454 ± 1.5028b
PAW I	V1	0.162 ± 0.0398a	0.061 ± 0.0174a	0.271 ± 0.0127a
	V2	16.417 ± 0.9963b	22.639 ± 1.7632b	36.406 ± 4.903c
PAW II	V1	0.119 ± 0.0388a	0.033 ± 0.0107a	0.076 ± 0.0209a
	V2	17.107 ± 0.7524b	22.318 ± 2.5788b	35.603 ± 5.7657c

Data are presented as mean ± SD (n = 3). Different letters mean significant differences between the groups, according to Tukey posthoc test (P < 0.05).

DAT days after transplanting.