Table 1:
Sesame cultivars screened for resistance to Meloidogyne incognita, M. hapla, M. arenaria, and M. enterolobii in a two greenhouse pot experiments.
Figure 1:
Plants were assessed for root gall severity following a 0–10 scale adapted from Zeck (1971). (a) example of a root gall severity score of 0 in a sesame root system and (b) root gall severity score of 5 in a ‘Rutgers’ tomato root system.
Table 2:
Visual root gall severity scores for sesame cultivars inoculated with 1,000 nematode eggs sixty days after inoculation. Values in the table are the mean of eight replicate plants. Root gall severity was rated on a scale of 0 to 10, with 0 = no root galling, 6 = approximately 50% of the root system galled, and 10 = 100% of the root system galled (adapted from Zeck 1971).
| M. arenaria | M. enterolobii | M. hapla | M. incognita | |
|---|---|---|---|---|
| ES103 | 0.4 b | 0.6 bZ | 0.0 b | 0.0 b |
| ES107 | 0.1 b | 1.0 b | 0.0 b | 0.0 b |
| ES108 | 1.0 b | 0.7 b | 0.0 b | 0.1 b |
| S39 | 0.1 b | 0.8 b | 0.0 b | 0.0 b |
| S3276 | 0.4 b | 0.9 b | 0.1 b | 0.0 b |
| S3251 | 0.6 b | 0.3 b | 0.0 b | 0.0 b |
| S3301 | 0.7 b | 1.4 b | 0.0 b | 0.1 b |
| Tomato cv. ‘Rutgers’ | 2.6 a | 6.3 a | 2.0 a | 5.0 a |
| P-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
Table 3:
Reproductive factor for sesame cultivars inoculated with 1,000 nematode eggs. Values in the table are the mean of eight replicate plants.
| M. arenaria | M. enterolobii | M. hapla | M. incognita | |
|---|---|---|---|---|
| Reproductive factor (Pf/Pi)Y | ||||
| ES103 | 0.68 | 0.15 aZ | 0.12 a | 0.04 a |
| S3301 | 1.01 | 0.43 ab | 0.12 a | 0.23 a |
| ES107 | 0.31 | 0.47 ab | 1.05 a | 0.03 a |
| ES108 | 0.81 | 0.16 ab | 0.07 a | 0.13 a |
| S3276 | 1.28 | 0.71 bc | 0.69 a | 0.08 a |
| S3251 | 0.44 | 0.75 bc | 0.04 a | 0.20 a |
| S39 | 1.13 | 1.63 c | 0.18 a | 0.04 a |
| Tomato cv. ‘Rutgers’ | 3.96 | 6.74 d | 3.72 b | 27.50 b |
| P-value | 0.0649 | <0.0001 | <0.0001 | <0.0001 |