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Incidence of Phytophthora pod rot disease of cacao at different heights in the tree

by Weststeijn, G.
Publisher: 1969Subject(s): THEOBROMA CACAO | PHYTOPHTHORA PALMIVORA | ENFERMEDADES FUNGOSAS | MORBOSIDAD | ALTURA DEL ARBOL | FUENTES DE INFECCION | FACTORES AMBIENTALES | ESTACION HUMEDA | NIGERIA | THEOBROMA CACAO | PHYTOPHTHORA PALMIVORA | FUNGAL DISEASES | MORBIDITY | ENVIRONMENTAL FACTORS | WET SEASON | NIGERIA | THEOBROMA CACAO | PHYTOPHTHORA PALMIVORA | MALADIE FONGIQUE | MORBIDITE | FACTEUR DU MILIEU | SAISON HUMIDE | NIGERIA In: Netherlands Journal of Plant Pathology (Países Bajos) v. 75(1-2) p. 133-136Summary: The rate of infection of pods by P. palmivora at the lower trunk of a cacao tree is always higher than of those in the canopy. This is often held as a proof that the soil is the primary source of infection. An experiment had indicated that climatic conditions at the beginning of the rainy season in Western Nigeria do not favour infection of pods in the canopy, which may also explain the said phenomenon.
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The rate of infection of pods by P. palmivora at the lower trunk of a cacao tree is always higher than of those in the canopy. This is often held as a proof that the soil is the primary source of infection. An experiment had indicated that climatic conditions at the beginning of the rainy season in Western Nigeria do not favour infection of pods in the canopy, which may also explain the said phenomenon.

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