ISHS Acta Horticulturae 543: VII International Symposium on Postharvest Physiology of Ornamental Plants
PRESERVATION OF CHRYSANTHEMUM Sp. BY DRYING |
| Author: | O.P. Saxena |
| Keywords: | Chrysanthemum, dehydration method, floral parts, total chlorophyll stability, enzyme stability, injury index |
| Abstract:
Chrysanthemum occupies an important place in floriculture trade industry. Inspite of doing the very best with chemicals and experiment, it is very difficult to increase vase life of cut flowers. Attempts have been made to store chrysanthemum flowers and leaves by dehydration method for months for their ornamental values. Experiment was conducted during winter season with blooming, healthy chrysanthemum. For dehydration of floral parts, sand and hot air oven were used. Plant parts were cleaned properly with 0.1% HgCL2 and water. Temperature was maintained at 40o C for 5-40 hrs according to size and structure of floral parts.2 cm thick send beds were prepared in racks, where floral parts were embedded into it. It is necessary to keep a balance between temperature and duration of dehydration. The colour and structure of floral parts show no change after dehydration. But they need careful handling. Flowers can be stored in an artistic glass or plastic container. The leaves can be trimmed under glass or laminated sheets by using fixatives. Total chlorophyll stability shows significant negative role. Enzyme stability examined in dehydrated floral parts was also significantly negative. But injury index shows significant positive association with per gram dry weight. Physiological parameters like diameter, length, colour, and texture varied with each plant part. | |
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