Abstract
Spikes of gladiolus cv. White Prosperity were subjected to modified atmosphere storage in seven polymeric films [High Density Polyethylene (HDPE); Low Density Polyethylene (LDPE) and Polypropylene (PP) of 60 gauge (15 ji) and 100 gauge (25 n) thickness and Polyolefin (PO) of 60 gauge (15 jli ) thickness]. Four films (LDPE-60, HDPE-60, HDPE-100 and PO-60) maintained low levels of C02 and high levels of 02 inside the packages, whereas PP-100, PP-60 and LDPE-100 films accumulated high C02 and low 02 levels. PP-100 film exhibited maximum vase life and percent opening of florets followed by PP-60 film. Likewise, PP-100 followed by PP-60 film maintained high levels of starch and low soluble sugars, thereby indicating low rate of starch hydrolysis. PP-100 polymeric film was found most suitable for modified atmosphere storage of gladiolus spikes.
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