Table 2.
Root weight, gall index (GI) and eggs per gram root of Meloidogyne arenaria on genotypes of Cucurbita maxima and C. moschata in pot experiments.
| Genotype | Root weight (g) | GIa | Eggs/g root | Resistance designationb |
|---|---|---|---|---|
| C. maxima | ||||
| 57SI21-IP1 | 3.90 ± 0.20 defg | 7.88 ± 0.30 abc | 16734 ± 1471 de | S |
| 57SI21-IP2 | 2.80 ± 0.16 g | 6.25 ± 0.16 e | 18450 ± 2443 bcde | S |
| 57SI21-A3 | 3.48 ± 0.38 efg | 7.25 ± 0.16 cd | 36042 ± 2827 a | S |
| 57SI21-A6 | 3.46 ± 0.28 efg | 8.75 ± 0.16 a | 39911 ± 4924 a | S |
| 57SI21-O7 | 4.44 ± 0.27 cdef | 7.63 ± 0.32 bc | 24815 ± 1376 abcd | S |
| 57SI21-O11 | 4.80 ± 0.11 cd | 6.50 ± 0.19 de | 11768 ± 875 ef | MR |
| 57SI06-IP1 | 4.63 ± 0.37 cde | 7.75 ± 0.25 abc | 29306 ± 4407 abc | S |
| 57SI06-IP3 | 3.30 ± 0.32 fg | 8.50 ± 0.19 ab | 17156 ± 1408 cde | S |
| 55CA06-A1 | 2.78 ± 0.18 g | 6.13 ± 0.13 e | 28110 ± 1632 abc | S |
| 55CA06-A4 | 4.49 ± 0.25 cdef | 7.50 ± 0.19 bc | 16847 ± 1528 de | S |
| 55BA03-A1 | 7.11 ± 0.15 a | 7.63 ± 0.18 bc | 33326 ± 3760 a | S |
| 55CA15-A2 | 6.14 ± 0.43 ab | 8.00 ± 0.00 abc | 30655 ± 3574 ab | S |
| 55CA15-A3 | 5.60 ± 0.27 bc | 7.75 ± 0.16 abc | 9430 ± 1265 f | MR |
| 55CA15-O9 | 3.07 ± 0.21 g | 6.13 ± 0.13 e | 12384 ± 741 ef | MR |
| G14-IP1 | 3.09 ± 0.08 g | 5.88 ± 0.23 e | 2644 ± 190 g | HR |
| C. moschata | ||||
| 14BO01-O1 | 2.99 ± 0.16 b | 6.88 ± 0.30 b | 27423 ± 2677 b | MR |
| 14BO01-O2 | 5.91 ± 0.38 a | 7.25 ± 0.16 b | 6134 ± 790 c | HR |
| G9-A4 | 2.83 ± 0.22 b | 4.75 ± 0.16 c | 5474 ± 597 c | HR |
| G9-A5 | 2.68 ± 0.10 b | 8.25 ± 0.16 a | 62155 ± 5801 a | S |
| G9-O12 | 2.77 ± 0.19 b | 7.00 ± 0.27 b | 38177 ± 5127 b | S |
Notes: Data are the mean ± standard error of two experiments (four replicates for each experiment). Statistical analyses of data were based on log10 (x + 1) transformed data. Means within a column followed by the same letters for each plant species are not significantly different according to Tukey's HSD test at P<0.05. aGI was based on a scale from 0 (no galls) to 10 (100% of roots galled) (Bridge and Page, 1980). bResistance is based on reproduction relative to the most susceptible genotype (55BA03-A1 and 55CA15-A2 for C. maxima and G9-A5 for C. moschata). Reproduction <10% that of the susceptible genotype is considered highly resistant (HR), £50% is considered moderately resistant (MR), and >50% is considered susceptible (S).