Articles

PATHOGENICITY OF UK ISOLATES OF COLLETOTRICHUM ACUTATUM AND RELATIVE RESISTANCE AMONG A RANGE OF STRAWBERRY CULTIVARS

Article number
708_48
Pages
281 – 286
Language
English
Abstract
Twenty isolates of Colletotrichum acutatum were collected from strawberry plants or fruit in the UK. The isolates were tested for their pathogenicity on a set of five cultivars: ‘Chandler’, ‘Dover’, ‘Elsanta’, ‘Seascape’ and ‘Valeta’. The cultivars separated into two groups, with ‘Chandler’, ‘Elsanta’ and ‘Valeta’ more susceptible than ‘Dover’ and ‘Seascape’. There were significant differences in pathogenicity among the isolates and some cultivar x isolate interactions, but these did not follow a pattern.
Using a subset of five isolates, a range of cultivars grown in northern Europe was screened for resistance, along with advanced selections from the East Malling Research breeding programme. ‘Honeoye’ and ‘Pandora’ showed a useful level of resistance, even against the most aggressive isolates.

Publication
Authors
D. Simpson, K. Hammond, S. Lesemann, A. Whitehouse
Keywords
Black spot, anthracnose, Fragaria × ananassa, disease resistance
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