Materials and Methods Occurrence of bulb rot in commercial onion packages. Onion bulbs
(Allium cepa L.) in commercial packages (20 kg/package) with three different quality grades
(1st, 2nd, and 3rd grades) were provided by or purchased from the Namhae Branch of the
National Agricultural Cooperative Federation (NACF), Korea. Rotten or decayed bulbs were
inspected visually from November 1995 to April 1996. Isolation and identification of
microbes associated with bulh rot in storage. Rotten onion bulbs in storage or in the market …

Postharvest decay of onion bulbs was examined by inspecting the commercial packages in
the market or in storage. Bulb rot incidence was unexpectedly high, and onion bulbs with 1st
quality grade were rotten most severely by 51%, followed by 32% for 2nd and 21% for 3rd
grades. This indicates that larger bulbs had higher incidences of bulb rots. Major pathogens
associated with basal and neck rots were Fusarium oxysporum and Aspergillus sp. or
Botrytis allii, respectively, of which basal rot was most prevalent and damaging during …