Lopez-Baez, O., Fraire, V.G. & Cueto, M.J. 1996
Mejoramiento genetico para la resistencia a Phytophthora en Mexico. Proceedings of the International Workshop on the Contribution of Disease Resistance to Cocoa Variety Improvement, INGENIC, Salvador, 24th-26th September, 1996. pp.51-55.
Notes
Mexico - INIFAP, Rosario Izapa Disease - Phytophthora palmivora. Datafile: DIS_PHDS - Disease reaction to Phytophthora EXPERIMENTAL CONDITIONS Immature fruit of 58 clones, four months old were innoculated with spores of Phytophthora palmivora isolated from a cocoa plantation. Innoculation was carried out with a drop on the surface on opposite sides of the pod, at a point near the widest circumference; each drop of the suspension was a concentration of approximately 24000 zoospores/ml. Innoculated fruit were covered in a plastic box which contained 10ml of distilled water in the bottom to maintain an atmosphere of high relative humidity. Evaluation of the results took place six days after innoculation. The size of the mark was taken as an average diameter from the point of infection.
Disease