Summary
A new apple and pear breeding programme was started in 1986. The main goal of this programme is to produce very early and late maturing apple and pear cultivars resistant to the main diseases and with range of tree habits - standard, compact or columnar and weeping. Hybrid 142 (Golden Delicious × M. zumi) which is resistant to scab mildew and San José scale is very effective as donor for powdery mildew resistance. To incorporate resistance to scab parents as Prima, Redfree, Liberty, Fiorina carrying the Vf resistance were included. Hybrid 2350 (Williams × P. ussuriensis) × Clapp’s Favourite is used as donor for scab resistance and will be studied for resistance to Psylla pyricola. Hybrids with columnar habit have been selected from the crosses Mcintosh Wijcik × Redfree and Mcintosh Wijcik × Liberty, and with weeping habit from progenies Elise Rathke × Prima and Elise Rathke × Fiorina. Embryoculture is applied to very early ripening apple (early July — Geneva Early and Vista Bella) and pear (second part of June — Ranna bolyarka and Trapezitsa) cultivars.
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© 1994 Springer Science+Business Media Dordrecht
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Djouvinov, V. (1994). Apple and pear breeding in Bulgaria. In: Schmidt, H., Kellerhals, M. (eds) Progress in Temperate Fruit Breeding. Developments in Plant Breeding, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0467-8_25
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DOI: https://doi.org/10.1007/978-94-011-0467-8_25
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