Table 4.
Root gall ratings of tomato (Solanum lycopersicon L.), root-knot nematode, Meloidogne incognita population in soil, and tomato fruit yield as affected by fumigants and Nicotinamide adenine dinucleotide (NAD), field trial-fall 2020, Gulf Coast Research and Education Center (GCREC), FL.
| Root-knot severity (0–10 scale) | J2s/200 cc soil | Tomato Yield (kg/plot) | ||||||
|---|---|---|---|---|---|---|---|---|
| Fumigant | NAD | 53 DAT | 97 DAT | 97 DAT | 68 DAT | 82 DAT | 96 DAT | Total yield |
| None | 3.28a | 5.24a | 361a | 1.56c | 5.99b | 9.90a | 17.46b | |
| Fumigant | Pic 100 | 0.26b | 0.46b | 15b | 5.51b | 10.53a | 11.06a | 27.11a |
| Pic-Clor 60 | 0.06b | 0.15b | 8b | 8.79a | 8.51ab | 12.45a | 29.76a | |
| None | 1.04a | 2.04a | 217a | 5.06a | 8.53a | 12.13a | 25.74a | |
| NAD | 5 mM | 1.51a | 2.20a | 133a | 5.14a | 7.47a | 10.65a | 23.27a |
| 10 mM | 1.06a | 1.62a | 35a | 5.66a | 9.03a | 10.63a | 25.32a | |
| Fumigants | <.0001 | <.0001 | <.0001 | <.0001 | 0.024 | 0.160 | <.0001 | |
| P-value | NAD | 0.474 | 0.409 | 0.591 | 0.763 | 0.569 | 0.412 | 0.393 |
| Fumigants*NAD | 0.275 | 0.213 | 0.060 | 0.824 | 0.798 | 0.254 | 0.758 | |
Note: DAT = days after transplanting. Factor levels sharing the same letter within each factor do not differ significantly (P-value > 0.05), according to Tukey’s HSD.