Abstract:
Pre-harvest management that extends the shelf life of mango is limited in developing countries
like Bangladesh. An experiment was carried out to investigate the effect of pre-harvest treatments
on shelf-life and quality of mango fruits cv. Amrapali. at 20 and 10 days before harvesting
(DBH), mango trees were sprayed with different treatments; water spray (control), 2% calcium
chloride (CaCl
2
), 1% potassium sulphate (K
2
SO
4
ii
), 75 ppm gibberellic acid (GA
3
), and 200 ppm
salicylic acid (SA). Fruit trees sprayed with 75 ppm GA
3
and 200 ppm SA at 20 DBH increased
the time to ripen (12 and 11 days after harvesting, respectively) than control trees (6 days). When
fruits were sprayed with 75ppm GA
3
at 20 DBH, they had the longest shelf life (17 days),
followed by 200 ppm SA at 20 DBH (16 days), compared to control (9 days). Among the
treatments, 75 ppm GA
3
at 20 DBH reduced weight loss, pH, disease severity, total soluble solid
(percent Brix), and enhanced ascorbic acid, β--Carotene, and titratable acidity. Therefore, 75 ppm
GA
3
at 20 DBH is suitable for extending the shelf life and improves the quality of mango
Description:
A Thesis
Submitted to the Department of Horticulture, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
HORTICULTURE
