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

پژوهش های حفاظت گیاهان ایران

Article 4, Volume 26, Issue 3 - Serial Number 20, September 2012, Pages 261-268   

Document Type: Research Article

DOI: 10.22067/jpp.v26i3.15486

Author

H. Hajnajari^*

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