Effect of Pre and Post Harvest Treatments on Shelflife and Quality of Mango cv. Neelum

• Main Author: Jeyasudha, S Lavanya
• Format: Dissertation
• Language: English
• Published: ProQuest Dissertations & Theses 01-01-2000
• Subjects: Food Science; Horticulture
• ISBN: 9798516901027

Investigations were undertaken to study the effect of growth regulators and fungicides on shelf life and quality of mango (Mangifera indica L.) cv. Neelum at Horticultural College and Research Institute, Periyakulam during 1999 - 2000. The matured fruits were treated with GA3 (500 ppm), BA (50 ppm) and CaCl2 (10,000 ppm) and also in combination with benomyl (1000 ppm) and without combination of bavistin (1000 ppm), benomyl (1000 ppm) and captafol (1500 ppm) Pre harvest, pre and post harvest and post harvest stages of treatments were given with growth regulators and fungicides. Fruits with no treatment served as checks. Fruits were stored under ambient temperature after harvest.Pre harvest spray with growth regulators, fungicides and water were done at 15 and 30 days and for CaCl2 at 45 days prior to harvest. Post harvest treatments and hot water (55°C) as dipping were carried out after harvest. This study revealed that pre and post harvest treatments with GA3 (500 ppm) significantly delayed ripening It had the highest firmness, least physiological loss in weight and delayed anthracnose infection. It had taken more days to degreen the fruit and shrinkage than other treatments. It had also registered the highest acidity, ascorbic acid and P carotene level with high textural score. Among the combinations, BA + benomyl exhibited the lowest weight loss and reduced anthracnose infection. The ascorbic acid and acidity level was also high. Among the stages of treatments, pre and post harvest stages of treatments was found effective for extending shelf life of fruits. From this study, it is concluded that GA3 (500 ppm) treated fruits at pre and post harvest stages could be recommended to extend the shelf life of mangoes upto 20 days and also to restore the quality attributes.