STUDY ON PHYSIOLOGICAL AND BIOCHEMICAL METABOLISM ACCORDING TO THE DEVELOPMENTAL AGE OF CUCUMBER FRUIT (CUCUMIS SATIVUS L.) BABY F1 FADIA VARIETY GROWN IN THANH HOA

Abstract

The research was conducted to determine the ripening time of the fruit, this is the
scientific basis for better harvesting and preservation of the fruit. Using the methods of
physiological, biochemical research and analysis of changes in some physiological and
biochemical parameters according to the growth and development of cucumber from
formation to maturity showed that the length, diameter reached almost maximum size at day
11 after anthesis. The content of chlorophyll in cucumber peel reached its highest value at
day 8 and then decreased. The content of carotenoids was low in fruit formation and then
increased until it ripens. The vitamin C content and reducing sugar content increased
continuously and reached the maximum level day 11 and then decreased slightly. The starch
content, total organic acid content and tannin content reached the maximum level when the
fruit was 9 days old and then gradually decreased. The pectin content increased from the
fruit formation until fruit ripening. Through this study, we found that the cucumber fruit
should be harvested at day 11 after anthesis to ensure the nutritional value of the fruit during
storage.