Numerous clones resistant to Phytophthora palmivora in the "Guiana" genetic group of Theobroma cacao L.

ABSTRACT: Cocoa black pod rot, a disease caused by Stramenopiles of the genus Phytophthora, and particularly by the pan-tropical species P. palmivora, causes serious production losses worldwide. In order to reduce the impact of these pests and diseases, preference is given to genetic control using resistant varieties and, to that end, breeders seek sources of resistance in wild cocoa trees. For instance, surveys of spontaneous cocoa trees in French Guiana between 1985 and 1995 led to the collection of abundant plant material forming a particular genetic group (the "Guiana" group). Following numerous one-off studies demonstrating the merits of this group as a source of resistance to Phytophthora, this article presents the results of a comprehensive study assessing the resistance of 186 "Guiana" clone

SUBMITTER: Thevenin JM 

PROVIDER: S-EPMC3406055 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature