Table 2.

Effect of 1mM Nicotinamide adenine dinucleotide (NAD) on root-knot nematode, Meloidogne incognita severity and plant biomass of tomato (Solanum lycopersicon L.) cultivar HM 1823 in the greenhouse, Gulf Coast Research and Education Center (GCREC), Feb–May, 2019.

	Gall rating (0–10)		Eggs/g root		Dry root weight		Dry shoot weight
Treatments	60 DAT	105 DAT	60 DAT	105 DAT	60 DAT	105 DAT	60 DAT	105 DAT	Total fruit yield (kg)
Control	4.0a	8.3a	54688a	291536a	3.76a	4.41a	26.12a	54.21a	1.29a
Pre + Post	2.9b	7.2b	27393b	269600a	4.00a	4.88a	28.99a	53.83a	1.28a
Post	3.3b	8.1a	41353a	276340a	3.70a	5.21a	27.89a	60.48a	1.26a
Pre	3.4b	8.0a	45705a	278300a	4.33a	4.67a	28.40a	57.96a	1.25a
P-value	0.0021	0.0001	0.007	0.89	0.214	0.833	0.230	0.507	0.986

Note: DAT = days after transplanting; Pre = NAD treatment one day before transplanting; Post = NAD treatment one day after transplanting. Factor levels sharing the same letter do not differ significantly (P-value > 0.05), according to Tukey’s HSD.