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Variability within Clones of Potato cv. Russet Burbank to Infection and Severity of Common Scab Disease of Potato

journal contribution
posted on 2023-05-16, 12:46 authored by Calum WilsonCalum Wilson
Significant variability in the level of resistance to common scab disease (to both disease incidence-tuber surface area affected, and severity-lesion depth) within potato (Solanum tuberosum) cv. Russet Burbank clonal lines and other selected processing cultivars was shown. Across two trials, cvs. Russet Nugget and Shepody and Russet Burbank clone British Columbia were consistently grouped within the cluster of least disease incidence whereas cv. Russet Norkotah and Vancouver unit four were grouped within the cluster showing greatest disease incidence. Russet Nugget and British Columbia were also consistently grouped within the cluster showing least disease severity, whereas Shepody and Russet Burbank clone Starks were grouped within the cluster with greatest severity scores. For some clones, consistency of rating across trials was not always apparent. Of note for the Tasmanian industry, there were differences within the five commercial Vancouver clonal units used interchangeably, with unit 4 showing significantly greater disease severity and incidence than some of the other units. However the extent of increased disease never exceeded 1.75 times the best of the other 'Vancouver units and the relevance of these results to the relative field performance of unit 4 remains to be tested.

History

Publication title

Journal of Phytopathology

Volume

149

Issue

10

Pagination

625-628

ISSN

0931-1785

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Blackwell Wissenschafts-Verlag GmbH

Place of publication

Berlin, Germany

Repository Status

  • Restricted

Socio-economic Objectives

Field grown vegetable crops

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