Articles

PRELIMINARY OBSERVATIONS ON THE RESISTANCE TO SHARKA IN PEACH AND RELATED SPECIES

Article number
592_98
Pages
699 – 704
Language
English
Abstract
Resistance to sharka induced by plum pox virus has been evaluated for cultivars of peach, clones of wild species closely related of peach and various other Prunus species.
Each genotype was grafted by chip-budding on ‘GF 305’ peach rootstocks previously infected with the virulent Markus PPV strain.
After bud break, genotype evaluation consisted in observing absence or presence of symptoms on leaves, noting the rapidity of symptom appearance and the symptom intensity on leaf and on the whole plant.
Results obtained in the context of this very severe biological test against PPV confirm the high level of resistance of some genotypes such as Prunus davidiana, Prunus amygdalus and their value as potential resistance sources for peach breeding.

Publication
Authors
T. Pascal, F. Pfeiffer, J. Kervella
Keywords
Prunus persica, Prunus davidiana, Prunus amygdalus, Prunus salicina, Prunus cerasifera, plum pox virus, plant reaction
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