STORAGE OF ONIONS IN CONTROLLED ATMOSPHERES

F. Adamicki, A.K. Kepka
Three one-year experiments were carried out using different carbon dioxide and oxygen levels (5 or 10 % CO2 combined with 3, 5 and 16 % O2) for controlled atmosphere storage of Wolsky onions, stored from October to June, or from December to June at +1°C or at +5°C.

The best results were obtained when onions were stored in 5 % CO2 and 3 % O2. This CA composition secured the highest percent of marketable onions after storage, with a high quality value of the bulbs. Onions stored at +1°C in 10 % CO2 and 5 % O2 for 224 days showed 23 – 47 % of the bulbs with internal spoilage. This physiological disorder appeared in 56 % of the bulbs, when onions were stored in sealed polyethylene bags with about 10 % CO2 content. Controlled atmosphere storage of onions gave better results when begun early in the season, just after curing of onions.

Adamicki, F. and Kepka, A.K. (1974). STORAGE OF ONIONS IN CONTROLLED ATMOSPHERES. Acta Hortic. 38, 53-74
DOI: 10.17660/ActaHortic.1974.38.5
https://doi.org/10.17660/ActaHortic.1974.38.5
38_5
53-74

Acta Horticulturae