Etude ecologique de la cacaoyere en relation avec la sensibilité envers le Phytophthora palmivora et la teneur en eau des tissus du péricarpe des cabosses

The effect of environmental factors (rainfall, temperature and relative humidity) on the response of pods to Phytophthora palmivora has been studied. The idea is suggested of "pouvoir tampon" of a cacao tree which is its ability to buffer variations in relative humidity. This "pouvoir tampon" bears a direct relation to the rotting of the pod. The effect of environmental factors on the pod and the fungus is: - rainfall has no direct effect on the pod but is important for the aberation and spread of zoospores. - Temperature is also without effect on the pod but a drop in temperature has a beneficial effect on the aberations of the zoospores. - Relative humidity close to saturation increases the susceptibility of pods and favours the fungus. - The effect of light is unknown

Bibliographic Details

Main Authors:	Jones, Earl 81495, 107834 Quesnel, V.C., 56331 Chalmers, W.S., 68473 Fordham, R., 80036 Iton, E.F. eds., 123506 Tarjot, M., 97646 Murray, D.B., 5330 Cocoa Research Institute, St. Augustine (Trinidad y Tobago), 4. International Cocoa Research Conference St. Augustine (Trinidad y Tobago) 8-18 Ene 1972
Format:	biblioteca
Published:	St. Augustine (Trinidad y Tobago) 1972
Subjects:	THEOBROMA CACAO, PHYTOPHTHORA PALMIVORA, PODREDUMBRES, ENFERMEDADES FUNGOSAS, FACTORES AMBIENTALES, CONTENIDO DE AGUA, LLUVIA, TEMPERATURA, HUMEDAD RELATIVA,
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