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Effects of cold storage on post harvest keeping quality of Gloriosa (Gloriosa superba,/em> L.) flowering stems

Authors:

Mala P. Hettiarachchi ,

University of Ruhuna, Mapalana, Kamburupitiya, LK
About Mala P.
Department of Crop Science, Faculty of Agriculture
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J. Balas

University of Natural Resources & Applied Life Sciences, Gregor Mendel Street 33, A-1180, Vienna, AT
About J.
Department of Applied Plant Sciences and Biotechnology, Group -Horticulture, Fruit & Wine growing, Planting design
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Abstract

The impact of cold storage and floral preservatives on Gloriosa superba quality attributes of fresh weight, petal and leaf colour, chlorophyll fluorescence and vase life were investigated during the vase life period. Wet storage (4°C for 7 d) of fully opened Gloriosa flowers markedly improved flower keeping quality when stems were kept in 'Standard Vase Solution', as compared to dry stored flowers. However, a sharp decrease in fresh weight and vase life was observed at 4°C after 10 days of cold storage. Chlorophyll fluorescence values (F0, Fm and Fv) increased up to day 3 and then decreased over the vase period. Compared to other treatments, flowers kept at 4°C (wet storage) for 7 days maintained a higher chlorophyll fluorescence yield (0.76) during vase period. There was a significant decrease of chlorophyll fluorescence yield with increasing storage temperature. Results proved that flower colour was affected by increasing temperature in the storage. Wet cold storage (4°C for 7 d) and use of selected floral preservatives played an important role in postharvest flower quality of Gloriosa.
How to Cite: Hettiarachchi, M.P. and Balas, J., 2010. Effects of cold storage on post harvest keeping quality of Gloriosa (Gloriosa superba,/em> L.) flowering stems. Tropical Agricultural Research and Extension, 7, pp.88–94.
Published on 29 Dec 2010.
Peer Reviewed

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