Fruit physical and chemical characteristics at maturity stage of Tommy Atkins, Keitt and Kent mango cultivars grown under Nubariya conditions.
Abourayya M. S., Kassim N. E., El-Sheikh M. H., Rakha A. M.
Author Affiliation: Technology of Horticultural Crops Dep., National Research Center, Dokki, Giza, Egypt.
The Journal of American Science 7 : 228-233
Abstract : The present study was conducted at orchard located at the side of Alexandria desert road (Cairo - Alexandria, Km. 140), at Nubariya region during 2007 and 2008 seasons. The three experimented mango cultivars were Tommy Atkins, Kent and Keitt. The trees of the three studied cultivars are grafted on seeded rootstocks, attained nine years old and grown in sandy Soil. Trees of all mango cvs. Were planted at 3×5 meter apart and subjected to the same horticultural practices. The objective of the present study is evaluating some fruit physical and chemical characteristics at maturity stage of Tommy Atkins, Kent and Keitt mango cultivars grown under Nubariya conditions. The obtained results can be summarized as follows: The observation besides the analysing of some physical and chemical characteristics of the fruits indicated that the physiological maturity was attained in Tommy Atkins cvs. at fruit age 113 day, Kent and Keitt cvs. at fruit age 122 day. Keitt cv. had the highest values of pulp percentage of weight followed by Kent cv. while, Tommy Atkins cv. had the lowest values of pulp percentage of weight. Meanwhile Tommy Atkins cv. had the highest percentage of peel of weight followed by Kent cv., while Keitt cv. had the lowest percentage of peel of weight. Tommy Atkins cv. had the highest percentage of seed of weight followed by Kent cv. while, Keitt cv. had the lowest percentage of seed of weight. Keitt cv. had the highest seed length, followed by Tommy Atkins cv. while, Kent cv. had the lowest values in the two seasons. The highest seed width was Tommy Atkins cv., followed by Kent cv. meanwhile; Keitt cv. had lowest values in the two seasons. Ascorbic acid (vitamin c) percentage was lowest in Kent cv. compared to Tommy Atkins cv. which had the highest value; Keitt cv. had intermediate values in the two seasons. Moisture percentage was almost the same with no significant difference among cvs. Tommy Atkins cv. had the highest moisture percentage, followed by Keitt cv. while, Kent cv. had the lowest moisture percentage in the two seasons. Kent cv. had the highest dry matter content percentage, followed by Tommy Atkins cv. while, Keitt cv. had the lowest value in the two seasons. Total sugars percentage was highest in Kent cv., followed by Keitt cv. while, Tommy Atkins cv. had the lowest total sugars percentage in the two seasons. Tommy Atkins cv. had the highest crude fiber percentage, followed by Keitt cv. while, Kent cv. had the lowest crude fiber percentage in the two seasons.