Table 4.
Root weight, gall index (GI) and eggs per gram root of Meloidogyne javanica 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 | 5.55 ± 0.32 ab | 6.13 ± 0.13 cd | 6244 ± 426 ef | MR |
| 57SI21-IP2 | 3.66 ± 0.23 cdef | 5.50 ± 0.57 de | 21206 ± 2011 ab | S |
| 57SI21-A3 | 3.55 ± 0.48 def | 7.25 ± 0.16 abc | 13853 ± 1405 c | S |
| 57SI21-A6 | 2.73 ± 0.12 f | 7.50 ± 0.27 ab | 8830 ± 678 de | MR |
| 57SI21-O7 | 3.74 ± 0.28 cdef | 3.63 ± 0.18 f | 4359 ± 589 fg | MR |
| 57SI21-O11 | 4.35 ± 0.18 bcde | 4.88 ± 0.13 e | 3119 ± 347 g | MR |
| 57SI06-IP1 | 3.11 ± 0.16 ef | 8.50 ± 0.19 a | 5621 ± 357 f | MR |
| 57SI06-IP3 | 5.31 ± 0.41 ab | 7.38 ± 0.18 ab | 14219 ± 562 bc | S |
| 55CA06-A1 | 4.73 ± 0.37 abcd | 6.88 ± 0.13 bc | 16197 ± 1360 abc | S |
| 55CA06-A4 | 5.96 ± 0.23 a | 7.00 ± 0.00 bc | 18338 ± 1490 abc | S |
| 55BA03-A1 | 5.11 ± 0.36 abc | 7.50 ± 0.19 ab | 18348 ± 753 abc | S |
| 55CA15-A2 | 4.17 ± 0.23 bcde | 7.25 ± 0.16 abc | 21806 ± 933 a | S |
| 55CA15-A3 | 3.58 ± 0.20 def | 7.50 ± 0.19 ab | 17962 ± 1074 abc | S |
| 55CA15-O9 | 3.28 ± 0.26 ef | 6.63 ± 0.18 bc | 13072 ± 1244 c | S |
| G14-IP1 | 2.87 ± 0.17 f | 7.13 ± 0.13 abc | 5729 ± 298 f | MR |
| C. moschata | ||||
| 14BO01-O1 | 4.03 ± 0.42 b | 7.25 ± 0.16 b | 28924 ± 3039 d | MR |
| 14BO01-O2 | 7.06 ± 0.22 a | 8.00 ± 0.00 a | 53259 ± 2769 b | S |
| G9-A4 | 7.30 ± 0.16 a | 8.00 ± 0.00 a | 51721 ± 5434 b | S |
| G9-A5 | 6.31 ± 0.32 a | 7.75 ± 0.16 ab | 71450 ± 4601 a | S |
| G9-O12 | 3.09 ± 0.09 b | 6.25 ± 0.16 c | 40865 ± 3240 bc | 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).