Average (n=5 for each crop cultivar - Meloidogyne isolate combination) root-galling index (0–10 = no galling – 100% of root system with galls; ±standard error) on roots of different plant cultivars 8 weeks after inoculation with 10,000 eggs/plant of a California isolate of M_ incognita race 3 (Minc-3) or M_ floridensis (Mflor) in two repeated greenhouse pot experiments_
| Crop | Cultivar | Experiment | Meloidogyne isolate | |||
|---|---|---|---|---|---|---|
| Minc-3 | Mflor | |||||
| Tomato | Daniella (S)a | 1 | 7.6±0.2 | ab | 7.4±0.2 | a |
| 2 | 8.0±0.3 | a | 6.2±0.5 | b | ||
| Celebrity (R) | 1 | 0.4±0.4 | b | 2.2±0.2 | a | |
| 2 | 0.8±0.2 | b | 1.8±0.4 | a | ||
| Cotton | SJ2 (S) | 1 | 2.4±0.2 | a | 2.6±0.2 | a |
| 2 | 3.6±0.2 | a | 2.2±0.4 | b | ||
| DP 1747NR B2XF (R) | 1 | 2.0±0.3 | a | 1.0±0.4 | a | |
| 2 | 1.2±0.2 | a | 1.2±0.2 | a | ||
| Cowpea | CB46Null (S) | 1 | 5.4±0.2 | b | 6.8±0.4 | a |
| 2 | 6.0±0.3 | a | 4.8±0.7 | a | ||
| CB46RR (R) | 1 | 0.0±0.0 | a | 0.0±0.0 | a | |
| 2 | 0.0±0.0 | b | 1.0±0.3 | a | ||
| Pepper | Baron (S) | 1 | 4.2±0.6 | a | 2.6±0.2 | b |
| 2 | 4.0±0.5 | a | 1.0±0.3 | b | ||
| Carolina Wonder (R) | 1 | 0.0±0.0 | b | 2.0±0.0 | a | |
| 2 | 0.0±0.0 | b | 1.0±0.1 | a | ||
| Carrot | Imperator58 (S) | 1 | 5.8±0.9 | a | 4.4±0.5 | a |
| 2 | 5.8±0.9 | a | 4.8±0.4 | a | ||
| Melon | Durango (S) | 1 | 9.0±0.1 | a | 8.0±0.1 | b |
| 2 | 8.5±0.2 | a | 8.4±0.2 | a | ||
Average (n=10 for each crop cultivar - Meloidogyne isolate combination) root-knot nematode reproduction factor RF (number of eggs per root system at harvest/number of eggs inoculated; ±standard error) on different plant cultivars 8 weeks after inoculation with 10,000 eggs/plant of a California isolate of M_ incognita race 3 (Minc-3) or M_ floridensis (Mflor) in greenhouse pot experiments_
| Crop | Cultivar | Meloidogyne isolate | |||
|---|---|---|---|---|---|
| Minc-3 | Mflor | ||||
| Tomato | Daniella (S)a | 50.6±5.5 | ab | 18.9±2.4 | b |
| Celebrity (R) | 0.15±0.1 | b | 1.8±0.4 | a | |
| Cotton | SJ2 (S) | 5.8±0.6 | a | 0.7±0.1 | b |
| DP 1747NR B2XF (R) | 0.8±0.2 | a | 0.1±0.0 | b | |
| Cowpea | CB46Null (S) | 57.2±5.3 | a | 37.0±6.0 | b |
| CB46RR (R) | 0.1±0.0 | b | 0.9±0.2 | a | |
| Pepper | Baron (S) | 55.4±9.7 | a | 6.3±1.5 | b |
| Carolina Wonder (R) | 0.1±0.0 | b | 8.2±0.7 | a | |
| Carrot | Imperator58 (S) | 3.6±0.5 | a | 0.7±0.1 | b |
| Melon | Durango (S) | 18.0±1.9 | a | 9.5±1.5 | b |
Reported host status and reproduction factor (RF) of vegetable crop cultivars for Meloidogyne floridensis_
| Crop | Cultivara | Host statusb | RF |
|---|---|---|---|
| collardsc | NA | − | <1 |
| collardsd | Flash | − | 0.6 |
| cowpead | Iron Clay | + | 7.1 |
| cucumberd | Mongoose | + | 18.3 |
| cucumberc | NA | − | <1 |
| cucumbere | NA | + | NA |
| eggplantc | NA | + | 8.1 |
| eggplante | NA | + | NA |
| peanutf | Florunner | − | NA |
| peanutg | Florunner | − | NA |
| pepperf | Keystone resistant giant | + | 0.5–1.5 |
| pepperg | California Wonder | − | NA |
| pepperf | California Wonder | + | 1.0–5.2 |
| pepperc | NA | − | <1 |
| pepperf | Charleston Belle (N-gene) | + | 0.3–1.2 |
| snap beane | NA | + | NA |
| squashc | NA | + | 7.6 |
| sweet potatoh | Beauregard | + | 31.1 |
| sweet potatoh | Bellevue | − | 0.1 |
| sweet potatoh | Bonita | + | 2.9 |
| sweet potato | Burgundy | − | 0.0 |
| sweet potatoh | Covington | − | 0.0 |
| sweet potatoh | Diane | + | 3.7 |
| sweet potatoh | Murasaki-29 | + | 4.8 |
| tomatod | Rutgers | + | 18.7–73.2 |
| tomatof | Rutgers | + | NA |
| tomatog | Rutgers | + | NA |
| tomatof | Talladega | + | 2.9–5.5 |
| tomatoh | Daniela | + | 72.0 |
| tomatoc | NA | + | 1.9 |
| tomatoe | NA | + | NA |
| tomatoh | Celebrity (Mi-1 gene) | + | 2.7 |
| tomatod | Skyway (Mi-1 gene) | + | 10.9–49.4 |
| tomatof | Crista (Mi-1 gene) | − | 0.2–0.6 |
| watermelond | Hybrid Crimson | + | 4.0 |
| watermelonf | Charleston Grey | + | NA |
| watermelong | Charleston Grey | + | NA |
Summary of results from this study on host status and reproduction factor (RF) of vegetable crop cultivars for Meloidogyne floridensis_
| Crop | Cultivar | Host statusa | RF |
|---|---|---|---|
| carrot | Imperator58 | − | 0.7 |
| cotton | SJ2 | − | 0.7 |
| cotton | DP 1747NR B2XF (RK1 gene) | − | 0.1 |
| cowpea | CB46Null | + | 37.0 |
| cowpea | CB46RR (Rk gene) | − | 0.9 |
| melon | Durango | + | 9.5 |
| pepper | Baron | + | 6.3 |
| pepper | Carolina Wonder (N gene) | + | 8.2 |
| tomato | Daniella | + | 18.9 |
| tomato | Celebrity (Mi-1 gene) | + | 1.8 |