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- Author or Editor: W. Chorney x
- Journal of the American Society for Horticultural Science x
Abstract
Rest period reduction in non-stored onion (Allium cepa L.) sets is favored by post-harvest temperatures of 5° and 25°C for periods of 1 to 10 days. A short-term post-harvest temperature of 45°C favored rest period reduction, but periods over 24 hr at 45° did not reduce the rest period. Reduction of sprouting attributable to the 45° storage was more pronounced with the White Portugal cultivar than with Yellow Ebenezer. Zero to 800 rad gamma irradiation (of freshly harvested sets) did not influence time of sprouting but doses from 1,600 to 12,800 rad decreased sprouting. Potassium gibberellate (A3)(applied as a dip treatment on sets) increased weights of plants grown from sets stored at 5°C for 72 hr before planting. High post-harvest storage temperatures (45°) negated the subsequent growth promoting effects of GA. Application of these findings has resulted in commercial shipments of freshly harvested onion sets under refrigeration.