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Authors
Affiliations
1 Department of Fruit Science, Punjab Agricultural University, Ludhiana Punjab, IN
2 Department of Fruit Science, Punjab Agricultural University, Ludhiana Punjab, IN
Source
The Asian Journal of Horticulture, Vol 8, No 2 (2013), Pagination: 556-560
Abstract
Peach is a highly perishable fruit and climacteric in nature. It can not be stored for longer period at ambient conditions. To maintain the post-harvest quality of fruits, peach trees of cv. Shan-i- Punjab were sprayed with putrescine and calcium nitrate at three concentrations each viz., 1.0, 2.0, 3.0 mmol L-1 and 0.5, 1.0 and 2.0%, respectively 10 and 20 days before the anticipated commercial harvesting. Physiological mature treated fruits were packed in corrugated fibre-board (CFB) boxes and then stored at 0-10C and 90-95% RH. The fruits were analyzed for various physico-chemical parameters on the day of storage and after 10, 20, 30 and 40 days of cold storage. Results revealed that pre-harvest application of putrescine and proved to be effective in maintaining the peach fruit health under cold storage conditions. Putrescine @ 2 and 3 mmol L-1 (sprayed 10 days before harvesting) treatments were found effective in maintaining firmness, total soluble solids, acidity, reducing sugars and non reducing sugars up to 30 days of storage.
Keywords
Peach, Putrescine, Calcium, Storage, Quality
