Resistance of cocoa to swollen-shoot virus in Ghana, 2: Assessment of seed inoculation experiments
Differences in amounts of infection following seed inoculation, by the mealybug vector (Planococcoides njalensis (Laing)) of cocoa swollen-shoot virus were used as a short-term test of virus resistance in a range of cocoa progenies. The test results were highly correlated with virus resistance as measured in field trials. The best assessment of seed inoculation experiments allowed for progeny-dependent variation in the latent period of the virus. Experiments in which estimates of progeny means varied significantly with replicate sometimes gave poor agreement with known field performance
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| Format: | biblioteca |
| Published: |
1981
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| Subjects: | THEOBROMA CACAO, PROGENIE, COCOA SWOLLEN SHOOT VIRUS, VIROSIS, RESISTENCIA A LA ENFERMEDAD, INOCULACION, SEMILLAS, VECTORES, PLANOCOCCOIDES NJALENSIS, GHANA, |
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| Summary: | Differences in amounts of infection following seed inoculation, by the mealybug vector (Planococcoides njalensis (Laing)) of cocoa swollen-shoot virus were used as a short-term test of virus resistance in a range of cocoa progenies. The test results were highly correlated with virus resistance as measured in field trials. The best assessment of seed inoculation experiments allowed for progeny-dependent variation in the latent period of the virus. Experiments in which estimates of progeny means varied significantly with replicate sometimes gave poor agreement with known field performance |
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