Results of Screening on 89 Apple Cultivars for Fire Blight Resistance Using USDA System in Karaj Conditions

Document Type : Research Article

Author

H. Hajnajari

10.22067/jpp.v26i3.15486

Abstract

Fire blight disease caused by Erwinia amylovora is a destructive disease of pome fruits including apple worldwide. Use of resistant cultivars is the most efficient method of disease control. In the present research, we investigated genetic resistance of 89 local and imported commercial apple cultivars in natural contaminated conditions to the bacterial disease using Beltsville scoring system (USDA) in horticulture Research station of Kamalshahr, Karaj (Iran), during triennial observations, 2007-2009. Apple cultivars differed significantly (P

Keywords

Apple cultivars

Erwinia amylovora

Fire blight

Native

Resistance

20.1001.1.20084749.1391.26.3.4.0

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