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Contribution to testing the resistance of apple genotypes to witches' broom


, : Contribution to testing the resistance of apple genotypes to witches' broom. Archiv fur Phytopathologie und Pflanzenschutz 23(3): 199-210

Two mycoplasma isolates were tested on a number of genotypes using 3 methods of inoculation. Differences between isolates in symptom development were observed on susceptible varieties but not on tolerant or resistant ones. Grafting the material to be tested onto infected young trees of the Undine was the best inoculation method. No symptoms were observed on most of the breeding clones tested, on Lord Lambourne or on Malus theifera and M.

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Related references

Kegler, H.; Meyer, U., 1987: Contributions to testing the resistance of apple genotypes to apple witches' broom. Comparative studies concerning the virulence of apple witches' broom (AWB) isolates, inoculation methods, characters of resistance or tolerance, and genotype sensitivity were made with different genotypes of apple. The two isolates under revi...

Davis, R.E.; Dally, E.L.; Prince, J.P.; Lee, I.M.ng, 1994: Delineation of a genomic cluster containing mycoplasmalike organisms associated with sweet potato witches broom, red bird cactus witches broom, and peanut witches broom diseases. Phytopathology 84(10): 1070

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