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Methods for assessing the tolerance and resistance of different types of cocoa to cocoa swollen‐shoot virus
Author(s) -
KENTEN R. H.,
LEGG J. T.
Publication year - 1970
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1970.tb05510.x
Subject(s) - biology , inoculation , shoot , virus , virulence , resistance (ecology) , horticulture , virology , agronomy , genetics , gene
SUMMARY Different types of cocoa were compared for their resistance to infection and tolerance of infection with the virulent strain A of cocoa swollen‐shoot virus, inoculated either by mealybugs or manually. The method of infection did not affect the ranking of the cocoa types for resistance, except at high percentages of infection, or for tolerance. In comparison with other methods, manual inoculation simplifies the screening of cocoa types for resistance and tolerance to virus infection, and provides a more sensitive test for resistance.