Changes in weight, specific gravity, carbohydrates and amylase activity during development of mango fruit cv. 'Chiin Hwang'.
Lee ShiueRu, Shiesh ChingChang, Lin HueiLing, Lee KuoChuan
Author Affiliation: Department of Horticulture, National Chung Hsing University, Taichung, Taiwan.
Journal of the Chinese Society for Horticultural Science 47 : 201-208
Abstract : The objectives of this study were to understand the pattern of fruit development, changes in carbohydrates and ?-amylase activity of 'Chiin Hwang' mango (Mangifera indica). Fruit length, fresh weight, specific gravity and firmness, starch, total soluble sugar, ?-amylase activity of every pulp parts were regularly investigated from 40 days to 152 days after anthesis. Results indicated that fruit growth curve as represented by fruit length, fresh weight and fruit volume are sigmoid. The specific gravity of fruits increased during maturation (82-152 days after anthesis). Firmness of fruits began to decline 109 days after anthesis with median and distal inner portions of mesocarp showed most changes. Starch content fast accumulated between days 68 to 96, and inner mesocarp had higher rate than the outer part. Total soluble carbohydrate decreased from days 68 to 96. ?-Amylase activity increased gradually until day 109 with the lowest activity found in median and distal inner mesocarp.