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DRY‐ROT DISEASE OF THE POTATO
Author(s) -
BOYD A. E. W.
Publication year - 1952
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1952.tb01016.x
Subject(s) - biology , abrasion (mechanical) , horticulture , inoculation , flesh , botany , materials science , composite material
By combining the results of the standard laboratory injection test and a riddle‐abrasion method of inoculation, both carried out at different periods of the year, a susceptibility index for a number of commercial potato varieties grown on the same soil was obtained, using the variety Catriona as a standard. None of the varieties tested was immune from the disease. The reactions of certain varieties were found to differ in both tests and in a few, e.g. Golden Wonder, this is believed to be caused by differences between ‘physiological’ susceptibility, i.e. that of the tuber flesh, and ‘mechanical’ susceptibility, i.e. where liability to abrasion is also involved. A method for assessing skin abrasion is described. The rate of development of rotting was found in some cases to be independent of the final susceptibility index.