Table 3.
Mean of total number of citrus canker lesions on attached leaves in three independent experiments on three grapefruit cultivars, 22 cybrid clones and ‘Meiwa’ kumquat inoculated with Xanthomonas citri subsp. citri by using the pressure infiltration method.
| Genotype | Mean of total number of lesion per leaf | ||
|---|---|---|---|
| Experiment 1x | Experiment 2x | Experiment 3x | |
| ‘Flame’ grapefruit | -y | 138.16a | 111.13b |
| ‘Marsh’ grapefruit | 129.25a | 104.73b | 119.93a |
| N-4z | 86.620c | 103.10b | 77.63d |
| ‘Ruby Red’ grapefruit | - | 101.70b | 90.36c |
| M-102z | 109.92b | 99.36b | 96.96c |
| M-78z | 106.33b | 98.13b | 90.33c |
| M-81z | - | 98.03b | 89.66c |
| M-13 | 60.25fgh | 85.26b | 57.60ghi |
| M-31 | 83.33cd | 78.53c | - |
| N-10 | 73.62def | 78.36cd | 52.90hi |
| N-8 | 57.00ghi | 76.13cd | - |
| N-18 | 53.66hi | 72.70cd | 57.06ghi |
| F-2 | 73.37def | 70.23de | 65.00efg |
| F-5 | 70.87defg | 64.33ef | 56.62ghi |
| M-10 | - | 63.26efg | 58.73fghi |
| F-13 | - | 61.86efg | 51.33i |
| F-3 | 53.25hi | 58.13fgh | 65.83efg |
| M-11 | 52.08hi | 56.73fgh | 62.06fghi |
| F-15 | - | 55.83fgh | 57.96ghi |
| M-9 | 46.41i | 53.90fgh | 58.60fghi |
| N-6 | 63.58fgh | 50.93gh | 74.43de |
| F-10 | 64.62efgh | 48.56h | 70.03def |
| F-6 | 78.16cde | 46.10h | 64.30efgh |
| N-12 | 70.50defg | - | 65.36efg |
| F-20 | 65.79efgh | - | - |
| ‘Meiwa’ kumquat | 1.20j | 3.86i | 22.23j |
The number of lesions was counted 14 days post-inoculation and six plants per genotype were inoculated.xMeans in the same column followed by different letters are significantly different based on Student-Newman–Keuls test (α = 0.05).yMissing values. Some genotypes did not grow young vegetative flushes in time for inoculation.zCybrids with grapefruit chloroplast (Cybrid-G).