Determinación de la edad susceptible del fruto de la papaya (Carica papaya L.) a la antracnosis (Colletotrichum gloeosporioides. (Penz.)).
Fecha
Tipo
artículo original
Autores
Durán Quirós, Alfredo
Mora Acedo, Dennis
Chavarría, Erick
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad de Costa Rica
Resumen
Descripción
Con la finalidad de determinar las etapas de susceptibilidad de la papaya criolla a la antracnosis del fruto producida por Colletotrichum sp. , así como para comprobar la presencia de genotipos resistentes a esta enfermedad, se realizó una investigación en la zona de Sarapiquí , provincia de Heredia, durante el período comprendido entre mayo y setiembre de 1993. Los resultados observados indican que los frutos de todas las edades evaluadas, fueron susceptibles a la antracnosis y que el combinado de genotipos de papaya criolla puede presentar dos situaciones: manifestar resistencia permanente a la enfermedad o no manifestarla del todo. No se encontraron evidencias de que el fruto pueda manifestar una resistencia temporal, durante alguna etapa de su período de crecimiento, que sea enmascarada por posteriores períodos susceptibles. Tampoco se encontraron evidencias que permitan sugerir etapas en los frutos de mayor o menor susceptibilidad a la enfermedad. En algunos genotipos de papaya criolla se encontró resistencia durante todo el período evaluado.
A research was carried out in Sarapiquí, Heredia, Costa Rica, between May and September, 1993. The objective was to determine the phases of susceptibility of native papaya to anthracnose produced by Colletotrichum sp., as well as to prove the presence of anthracnose-resistant genotypes. Results indicated that at all ages, fruits examined were susceptible to anthracnose, and that a combination of native papaya genotypes may either present a permanent resistance to the disease, or never show any signs at all. There was no evidence to prove that fruits might show a temporary resistance at certain development phases, which might be camouflaged by subsequent susceptible periods. Nor was there evidence to suggest phases of greater or lesser susceptibility to the disease. Some native papaya genotypes showed resistance through the period examined.
A research was carried out in Sarapiquí, Heredia, Costa Rica, between May and September, 1993. The objective was to determine the phases of susceptibility of native papaya to anthracnose produced by Colletotrichum sp., as well as to prove the presence of anthracnose-resistant genotypes. Results indicated that at all ages, fruits examined were susceptible to anthracnose, and that a combination of native papaya genotypes may either present a permanent resistance to the disease, or never show any signs at all. There was no evidence to prove that fruits might show a temporary resistance at certain development phases, which might be camouflaged by subsequent susceptible periods. Nor was there evidence to suggest phases of greater or lesser susceptibility to the disease. Some native papaya genotypes showed resistance through the period examined.