ISHS Acta Horticulturae 701: XII International Symposium on Apricot Culture and Decline
EVALUATION OF RESISTANCE OF APRICOT PROGENY (´VESTA´ × ´SEO´) TO PLUM POX VIRUS |
| Authors: | B. Krska, I. Oukropec, J.M. Audergon, J. Polak, P. Kominek |
| Keywords: | Prunus armeniaca, sharka, disease resistance, inheritance |
| Abstract:
Controlled apricot progeny obtained by crossing ´Vestar´ (susceptible) × ´SEO´(resistant), in segregation for sharka susceptibility, was used as a case study. Each clone was evaluated for its susceptibility either by grafting onto apricot infected trees or by grafting on to the woody indicator GF-305. The inoculation was done by isolate PPV-M in Lednice and PPV-D in Avignon. The same ratio resistant vs sensitive accessions has been observed in the two locations, with slight differences on few seedlings. The segregation rate sensitive vs resistant (3:1) fits the hypothesis of two independent dominant loci. | |
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