Hort. Sci. (Prague), 2004, 31(1):7-11 | DOI: 10.17221/3784-HORTSCI
Testing of Czech cultivars and advanced selections of apples for fire blight (Erwinia amylovora) resistance
- 1 Federal Centre for Breeding Research, Institute for Fruit Breeding, Dresden-Pillnitz, Germany
- 2 Federal Centre for Breeding Research, Institute for Epidemiology and Resistance, Aschersleben, Germany
- 3 Research and Breeding Institute of Pomology, Holovousy, Czech Republic
Five apple cultivars from the Czech Republic and 26 selections from the same country (a majority of them were resistant to scab) were included in the present study. M. robusta strain (Nr. 5) was used as a control with the highest level of resistance to fire blight. Another 7 cultivars with different levels of resistance or susceptibility to the disease were also evaluated. Selena and Nabella were found to be resistant, whereas Angold, Resista and Topaz were susceptible. Two HL selections were previously identified as highly resistant, 3 selections as medium resistant and 7 others as moderately susceptible. The rest of the 14 selections ranged from very high susceptible to medium susceptible. A high level of resistance was confirmed in 3 cultivars from Dresden-Pillnitz: Reanda, Remo and Rewena. Comparison of the parentage of the tested cultivars or selections with their level of resistance to fire blight suggests that most of the resistance comes from Malus floribunda, which was used in the course of their breeding as a donor of scab resistance. In one case, the source of the fire blight resistance was Starking Delicious cv.
Keywords: Erwinia amylovora; apple; fire blight; resistance; cultivars; Czech Republic
Published: March 31, 2004 Show citation
References
- FISCHER C., RICHTER K., 1996. Breeding for fire blight resistance within multiple resistance breeding programme in apples. Acta Hort., 411: 375-381.
Go to original source...
- FISCHER C., RICHTER K., 1999. Ergebnisse der Resistenzzüchtung gegenüber Feuerbrand im Pillnitzer Apfelzüchtungsprogramm. Erwerbsobstbau, 41: 56-60.
- FISCHER C., SCHAFFER H.J., 1990. Vergleichende Untersuchungen der Resistenz von Apfelsorten gegenüber Feuerbrand im Gewächshaus und im Freiland. Gartenbau, 37: 299-300.
- JANICK J., CUMMINS J.N., BROWN S.K., HEMMAT M., 1996. Apples. In: JANICK J., MOORE J.N. (eds.), Fruit Breeding, Vol. 1, Tree and Tropical Fruits. New York, John Wiley & Sons, Inc.: 1-77.
- RICHTER K., 1999. Der Feuerbrand des Kernobstes (Erwinia amylovora) und Möglichkeiten seiner Bekämpfung. Erwerbsobstbau, 41: 202-212.
- RICHTER K., FISCHER C., 2002. Stability of Fire Blight Resistance in Apple. Acta Hort., 590: 381-384.
Go to original source...
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.