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Subject: Fruit Science × End date: 2013 × Start date: 2011 × Type: Thesis ×
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    EFFECT OF POSTHARVEST TREATMENTS AND PACKAGING ON STORAGE LIFE AND FRUIT QUALITY OF MANGO (Mangifera indica L.) CV. LANGRA UNDER LOW TEMPERATURE CONDITION
    (Punjab Agricultural University, Ludhiana, 2013) Singh, Judgepreet; Gill, PPS
    The present study entitled “Effect of postharvest treatments and packaging on storage life and fruit quality of mango (Mangifera indica L.) cv. Langra under low temperature condition” was carried out in the Department of Fruit Science, PAU, Ludhiana during the year 2012. Physiologically mature, uniform and free from diseases fruits were harvested and were thoroughly washed, disinfected and were dipped in aqueous solutions of GA3 (100 and 200 ppm) and CaCl2 (2% and 4%) for five minutes. The treated fruits were air dried under shade before LDPE packaging. The fruits were placed in CFB boxes and subsequently stored at 13±1oC with 90-95% RH for 34 days. The cold stored fruits were analysed after 10, 20, 27 and 34 days of storage. PLW of fruits decreased with storage, however, LDPE packed fruits recorded significantly lower PLW as compared to other treatments. Similarly, fruit firmness, acidity and ascorbic showed declining trend with increase in storage period. TSS and sugars were increased upto 27 days of storage and after 34 days decline was recorded in unpacked treatments but in LDPE packed fruits TSS and sugars increased throughout the storage period. Fruit palatability rating was maximum at 27 days of storage after which it showed the decreasing trend. The carotenoids content increased with advancement of storage upto 27 days. During cold storage, CaCl2 (2%) + LDPE packed fruits helped in reducing PLW, spoilage, fruit colour degradation. The fruit treated with calcium chloride 2 per cent and LDPE packaging was found most effective in extending the storage life of mango cv. Langra fruits with excellent fruit quality at 27 days and with acceptable quality fruits at 34 days of low temperature storage.