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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.tb01015.x
Subject(s) - biology , inoculation , horticulture , agronomy , botany , veterinary medicine , medicine
The standard dry‐rot inoculation technique was employed to demonstrate variation in susceptibility in a number of commercial potato varieties over the whole storage season. Susceptibility is lowest at about normal lifting time and gradually rises. Different rates of seasonal progress in susceptibility between varieties were observed. A very high peak of susceptibility occurs in immature tubers in the post‐flowering period of plant growth, which, in the variety Doon Star, is in the latter part of August. This is followed by a sudden decrease which reaches a minimum when the haulm is dead. This susceptibility is not due to thinness of skin of the immature tubers but to physiological or chemical changes in the tubers. Some differences in susceptibility were also observed in different stocks of the same variety, possibly due to soil conditions, but when samples of these stocks were grown on the same soil no clear differences were found in the overall susceptibility, although variations occurred at different sampling dates.