Indications of heritability of resistance of a cocoa cultivar to Phytophthora palmivora pod rot in Ghana
The cocoa cultivar Y44, a local selection from Ghana showed the least susceptibility to black pod infection in the field among 20 types tested in a clonal trial. Resistant breeding lines segragated from its first generation progeny grown in the field. The seedlings of the F1 and F2 generation inbreds tests artificially in the green house segregated into resistant and susceptible breeding lines. The proportions of the resistant lines were similar to that of a known resistant cross included for comparison. The resistance conditioned by Y44 therefore seems heritable and appears to be polygenic in character
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| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
1973
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| Subjects: | THEOBROMA CACAO, CULTIVARES, PHYTOPHTHORA PALMIVORA, ENFERMEDADES FUNGOSAS, RESISTENCIA A LA ENFERMEDAD, HEREDABILIDAD, GHANA, |
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