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A simplified slice method for assessing tuber susceptibility of potato cultivars to Erwinia carotovora subsp atroseptica
Author(s) -
LAPWOOD D. H.,
READ P. J.
Publication year - 1985
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1985.tb01360.x
Subject(s) - erwinia , cultivar , biology , inoculation , horticulture , solanaceae , botany , bacteria , gene , biochemistry , genetics
The susceptibility of 24 potato cultivars to soft rot caused by Erwinia carotovora subsp. atroseptica was assessed in a simplified form of a tuber slice test described previously. Freshly made wounds on tuber slices were inoculated with drops (0–02 ml) containing 10 8 , 10 7 or 10 6 cells/ml and incubated aerobically for 3 days at 15° or 20°C. At 20°C differences between cultivars were clear at all concentrations but at 15°C less so at the lowest concentration unless incubation time was extended. The rank order of cultivar susceptibility was similar to that found in previous seasons.