INDICATORS OF RESISTANCE IN COCOA (THEOBROMA CACAO) TO BLACK POD DISEASE CAUSED BY PHYTOPHTHORA PALMIVORA

The relationship between morphological characteristics: stomatal frequency, stomatal pore length, surface wax, hardness of pod wall and pod susceptibility to P.palmivora infection was assessed in twelve selected cocoa clones of the Forastero and Trinitario types. Among these clones, significant variation was observed with respect to pod morphological characteristics and their responses to infection. A high positive correlation was obtained between the combined effect of stomatal frequency and pore length, and clonal susceptibility. This suggests that these two morphological characteristics together could be used as a selection criterion for the identification of resistant genotypes.


Issue Date:
Jul 31 1994
Publication Type:
Conference Paper/ Presentation
Language:
English
Total Pages:
7




 Record created 2017-07-07, last modified 2017-08-29

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