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Meloidogyne incognita reproduction parameters on watermelon, rootstock hybrids, and grafted combinations at different inoculum levels
| Hybrids | Inoculum level | Galls/root | Females/root | Egg-masses/root | Pf | Pf/Pi | %R.P. | %R.R. |
|---|---|---|---|---|---|---|---|---|
| 6001 F1 (HR) | 1,000 | 20 K | 12 O | 18 N | 252 Q | 0.25 M | 3.0 | 60.0 |
| 2,000 | 91 J | 71 N | 81 L | 1,360 NO | 0.68 JK | 7.6 | 53.3 | |
| 4,000 | 171 H | 128 KL | 150 I | 2,520 LM | 0.63 K | 7.0 | 54.0 | |
| 8,000 | 272 G | 154 JK | 163 I | 3,261 K | 0.41 L | 4.0 | 51.4 | |
| BS F1 (R) | 1,000 | 51 K | 16 O | 39 M | 706 P | 0.71 JK | 5.5 | 70.9 |
| 2,000 | 181 H | 164 JK | 73 L | 2,743 L | 1.37 H | 11.9 | 30.8 | |
| 4,000 | 261 G | 258 H | 185 H | 4,662 I | 1.17 I | 11.1 | 41.8 | |
| 8,000 | 392 F | 319 F | 181 H | 5,850 H | 0.73 J | 6.3 | 36.2 | |
| ASWAN F1 (MS) | 1,000 | 709 E | 405 E | 210 G | 1,550 N | 1.55 G | 61.5 | 34.1 |
| 2,000 | 827 D | 685 D | 469 D | 15,012 D | 7.51 A | 57.7 | 40.6 | |
| 4,000 | 983 C | 815 C | 688 C | 18,903 C | 4.73 B | 37.6 | 45.8 | |
| 8,000 | 1325 A | 994 A | 1,147 A | 21,421 A | 2.68 C | 26.8 | 53.6 | |
| ASWAN F1/6001 F1 (HR) | 1,000 | 107 J | 79 MN | 41 M | 382 Q | 0.38 L | 12.0 | 34.2 |
| 2,000 | 127 IJ | 95 LMN | 111 K | 2,402 M | 1.20 I | 10.3 | 53.9 | |
| 4,000 | 152 HI | 114 LM | 134 J | 6,362 G | 1.59 G | 6.2 | 54.0 | |
| 8,000 | 395 F | 297 FG | 346 E | 11,248 E | 1.41 H | 8.0 | 53.8 | |
| ASWAN F1/BS F1 (MS) | 1,000 | 391 F | 223 I | 79 L | 1,142 O | 1.14 I | 30.2 | 26.2 |
| 2,000 | 246 G | 185 J | 216 J | 3,870 J | 1.94 E | 20.1 | 53.9 | |
| 4,000 | 359 F | 269 GH | 314 F | 7,287 F | 1.82 F | 14.6 | 53.9 | |
| 8,000 | 1,039 B | 933 B | 836 B | 19,466 B | 2.43 D | 22.1 | 47.3 | |
| SE± | 40.867 | 33.245 | 32.653 | 754.085 | 0.186 |
Meloidogyne incognita reproduction parameters on sweet melon, rootstock hybrids, and grafted combinations at different inoculum levels
| Hybrids | Inoculum level | Galls/root | Females/root | Egg-masses/root | Pf | Pf/Pi | %R.P. | %R.R. |
|---|---|---|---|---|---|---|---|---|
| 6001 F1 (HR) | 1,000 | 20 M | 12 J | 18 O | 252 Q | 0.25 O | 3.0 | 60.0 |
| 2,000 | 91 K | 71 I | 81 M | 1,360 P | 0.68 LM | 7.6 | 53.3 | |
| 4,000 | 171 J | 128 H | 150 L | 2,520 L | 0.63 M | 7.0 | 54.0 | |
| 8,000 | 272 I | 154 H | 163 KL | 3,261 K | 0.41 N | 4.0 | 51.4 | |
| BS F1 (R) | 1,000 | 51 L | 16 J | 39 N | 343 Q | 0.34 NO | 5.5 | 70.9 |
| 2,000 | 181 J | 164 H | 73 M | 2,743 L | 1.37 J | 11.9 | 30.8 | |
| 4,000 | 261 I | 258 G | 185 J | 4,662 I | 1.17 K | 11.1 | 41.8 | |
| 8,000 | 392 G | 319 F | 181 JK | 5,850 H | 0.73 L | 6.3 | 36.2 | |
| Faransawy (MS) | 1,000 | 777 E | 485 D | 213 I | 2,219 M | 2.22 D | 69.8 | 30.5 |
| 2,000 | 942 D | 763 C | 586 D | 17,377 C | 8.69 A | 67.5 | 43.4 | |
| 4,000 | 1,327 B | 937 B | 860 B | 21,165 B | 5.29 B | 44.9 | 47.9 | |
| 8,000 | 1,507 A | 1,072 A | 945 A | 23,686 A | 2.96 C | 25.2 | 46.9 | |
| Faransawy/6001 F1 (R) | 1,000 | 561 F | 447 E | 348 E | 1,642 O | 1.64 I | 79.5 | 43.8 |
| 2,000 | 566 F | 322 F | 305 G | 2,628 L | 1.31 J | 31.4 | 48.6 | |
| 4,000 | 338 H | 237 G | 227 I | 6,578 G | 1.64 I | 11.6 | 48.9 | |
| 8,000 | 328 H | 356 F | 329 F | 11,290 E | 1.41 J | 8.6 | 48.0 | |
| Faransawy/BS F1 (MS) | 1,000 | 260 I | 472 DE | 256 H | 1,890 N | 1.89 G | 72.8 | 35.2 |
| 2,000 | 271 I | 319 F | 228 I | 4,211 J | 2.11 E | 27.4 | 41.7 | |
| 4,000 | 388 G | 236 G | 261 H | 7,202 F | 1.80 H | 12.4 | 52.5 | |
| 8,000 | 1,053 C | 943 B | 837 C | 15,937 D | 1.99 F | 22.3 | 47.0 | |
| SE± | 46.348 | 34.472 | 30.178 | 783.694 | 0.216 |
ANOVA summary for effects of genotype, inoculum level, and interaction on nematode and plant growth traits
| Source of variation | Galls/root | Females/root | Egg-masses/root | Pf | P/Pi | %R.P. | %R.R. |
|---|---|---|---|---|---|---|---|
| Hybrids | 45.23 (<0.001) | 38.76 (<0.001) | 42.15 (<0.001) | 50.12 (<0.001) | 12.34 (<0.001) | 25.67 (<0.001) | 18.45 (<0.001) |
| Inoculum levels | 67.89 (<0.001) | 55.43 (<0.001) | 60.78 (<0.001) | 72.34 (<0.001) | 15.67 (<0.001) | 30.12 (<0.001) | 22.34 (<0.001) |
| Hybrids × inoculum | 12.34 (<0.001) | 10.56 (<0.001) | 11.23 (<0.001) | 14.56 (<0.001) | 5.67 (<0.001) | 8.45 (<0.001) | 7.89 (<0.001) |