The efficacy of plant hormone on the shelf life and quality of mango (Mangifera indica L.) cultivar of Fazli.
Morshed M. H., Ibralhim M., Islam M. A., Helali M. O. H., Islam M. S.
Author Affiliation: Department of Chemistry, Khulna University of Engineering and Technology, Khulna-9203, Bangladesh.
International Journal of Sustainable Agricultural Technology 2 : 5-10
Abstract : Freshly harvested, uniformly ripe mango (cv. Fazli) fruits were collected from the experimental mango research garden of BCSIR Laboratories, Rajshahi, Bangladesh from June to July in 2005 and in 2006. The effects of plant growth regulators (IAA, NAA and 2,4-D) at various concentrations (10, 20 and 30 ppm) for the extension of shelf life and quality characteristics of Fazli were studied. The shelf life of treated mangoes was prolonged by 26.67% compared to that of the control. Treatments with 10 ppm NAA, 30 ppm NAA and 20 ppm 2,4-D concentrations were more effective in prolonging shelf life of this cultivar by 4 days. At the last edible stage, the weight loss of mangoes treated with 20 ppm 2,4-D was lower (40.26%) compared to that of the control (69.59%). The physical characters such as appearance, colour, flavour, taste and texture of treated mangoes were more attractive and acceptable than those of the control. The nutritional value of mango was also affected remarkably after treatment with plant growth regulator. The quality of treated mangoes in terms of ascorbic acid, total soluble solids, total sugar, reducing sugar, nonreducing sugar content of its pulp was superior to those of the control. At the last edible stage, chemical analysis of treated mango pulp showed increased amounts of total sugar (22.86%), reducing sugar (20.18%), nonreducing sugar (23.89%), total soluble solids (16.80%) and ascorbic acid (16.28%), while the amount of titratable acidity (16.67%) was lower compared to that of the control.