Table 1.
Effect of Nicotinamide adenine dinucleotide (NAD) on root-knot nematode, Meloidogne incognita infection and plant growth on tomato (Solanum lycopersicon L.) cultivar HM 1823 in growth room experiment, Sep-Dec, 2018.
| NAD treatments | J2 penetration (2 DAI) | Gall rating (0-10) (30 DAI) | Egg mass/g root (30 DAI) | Shoot weight (g) (30 DAI) | Root Weight (g) (30 DAI) |
|---|---|---|---|---|---|
| Control | 85a | 3.3ab | 159a | 3.93c | 0.74bcd |
| 1 mM Pre | 41d | 3.1abc | 88c | 4.74a | 0.86a |
| 0.1 mM Pre | 61bc | 2.8bc | 77c | 4.38abc | 0.80abcd |
| 0.01 mM Pre | 74ab | 3.6a | 98c | 4.11bc | 0.70d |
| 1mM Pre + Post | 47cd | 2.9bc | 129b | 4.85a | 0.81abc |
| 0.1 mM Pre + Post | 73ab | 2.7bc | 100bc | 4.15bc | 0.73cd |
| 0.01 mM Pre + Post | 45cd | 3.4ab | 104bc | 4.35abc | 0.81abc |
| 1 mM Post | 48cd | 2.6c | 96c | 4.56ab | 0.83ab |
| P-value | <.0001 | 0.026 | 0.0003 | 0.0071 | 0.03 |
Note: DAI = days after inoculation; 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.