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Ultra‐violet Treatment of Contaminated Irrigation Water and Its Effect on the Bacteriological Quality of Celery at Harvest
Author(s) -
ROBINSON I.,
ADAMS R. P.
Publication year - 1978
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1978.tb04201.x
Subject(s) - irrigation , water quality , contamination , coliform bacteria , environmental science , fecal coliform , bacteria , biology , horticulture , agronomy , ecology , genetics
Two crops of celery were irrigated with: (a) river water, (b) river water irradiated with ultraviolet light, or (c) mains water. Ultra‐violet radiation was effective in reducing the number of coliforms but not pectate‐degrading bacteria in the river water. At harvest, larger numbers of coliforms were found on the celery which had been irrigated with the untreated river water even when the last irrigation had been six days previously. Total colony counts and numbers of fluorescent pseudomonads and pectate‐degrading bacteria on the crop were not affected by the different water sources.