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Effect of Ethrel on the Starch Sugar Changes of Off-Season Fruits of Mango (Mangifera indica l. Var. Neelum) during Ripening

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The present investigation is aimed at studying the effect of ethrel on the ripening of off-season fruits of Mangifera indica L. var. Neelum. The control fruits were kept in the laboratory naturally while the experimental fruits were treated with different concentrations of ethrel (100, 200 and 300 ppm). In control fruits, partial ripening led to incomplete metabolic changes, which did not alter the presence of sourness in the fruits. Hence, they were not fit to be eaten. On the other hand, the fruits treated with different concentrations (100, 200 and 300 ppm) of ethrel ripened on 13th day, 11th day and 9th day respectively after treatment. The colour changed from green greenish to yellow and the fruits were palatable in nature. The starch decreased during ripening, both in the treated and control fruits. On the other hand, the sugar, α-amylase, β-amylase, activities increased. Among the different 100, 200 and 300 ppm ethrel treatments, the 200 ppm alone had the optimum effect on the ripening of off-season fruits of Mangifera indica L. var. Neelum.


International Letters of Natural Sciences (Volume 7)
T. Venkatesan and C. Tamilmani, "Effect of Ethrel on the Starch Sugar Changes of Off-Season Fruits of Mango (Mangifera indica l. Var. Neelum) during Ripening", International Letters of Natural Sciences, Vol. 7, pp. 1-12, 2014
Online since:
Dec 2013

Selvaraj Y. (1993). Fruit ripening in Advances in Horticulture, Fruit Crops, (ed. K.L. Chadha and O.P. Pareek). Malhotra Publishing House, New Delhi, Vol. 4, Part 4, 1703-1741.

Bathgate B., Purton M. E., Grierson D. Goodenough P. W., Planta 165 (1985) 197-204.

Loesecke H., Von W. (1949). Bananas, Interscience, Publishers, New York. p.189.

Presis J., Levi C. (1980). Starch biosynthesis and degradation. In: The Biochemistry of Plants, - A comprehensive treatise. (ed. J. Preiss), Academic Press, vol. 13, 371-424.

Jain N., Dhawan K., Malhotra S., Singh R., Pl. Fd. Human Nutr. 58 (2003) 309-315.

Thanaraj T., Terry L. A., Bessant C., J. Fd. Chem. 112 (2009) 786-794.

Paul A. A., Southgate D. A. T. (1978). The composition of Foods. HMSO. London, 418.

Tandon D. K., Kalra S. K., J. Hort. Sci. 58(3) (1983) 449-453.

Tandon D. K., Kalra S. K., Lohani H. C., Ind. J. Hort. 42 (1985) 223-228.

Tucker G. A. (1993). Introduction in Biochemistry of Fruit Ripening. (ed. G. Seymour, J. Taylor and G. Tucker, ) Chapman & Hall, London, pp.1-51.

Yamaki S., Acta Hort. 398 (1995) 109-120.

Venkitakrishnan M., Panjatcharam V., Kumaravelu G., Ramanujam M. P., Ind. J. Pl. Physiol. 2(4) (1997) 267-270.

Lester G., J. Am. Soc. Hort. Sci. 23(1) (1998) 126-129.

Subramanyam H., Narayanamoorthy N. V., Lakshmi-narayana S., Santha K., Acta Hort. 24 (1972) 260-264.

Kalra S. K., Tandon D. K., Sci. Hort. 19 (1983) 263-269.

Selvaraj Y., Kumar R., Pal D. K., J. Fd. Sci. Tech. 26 (1989) 308-313.

Sacher J. A., Ann. Rev. Pl. Physiol. 24 (1973) 197-224.

Mao and Kinsella, Fd. Sci. 46 (1981) 1400-1403.

Desai B. B., Deshpande P. B., Mysore J. Agri. Sci. 12 (1978) 193-201.

Parikh H. R., Nair G. M., Modi, V. V., Ann. Bot. 65 (1990) 121-127.

Fuchs Y., Pesis E., Zauberman G., Sci. Hort. 13 (1980) 155-160.

Peacock B. C., Brown B. I. (1984). Quality comparison of Several mango varieties. Proceedings First Australian Mango Research Workshop, pp.334-339.

Lam P. F., Ng K. H., Omar D., Talib Y. (1982). Physical, Physiological and Chemical changes of Golek, after harvest. Proc. Workshop on Mango and Rambutan. ASEAN, Postharvest Training and Research Center, College, Languna, Philippines, pp.96-112.

Tucker G. A., Grierson D. (1987). Fruit ripening. In The Biochemistry of plants - A comprehensive treatise (ed. D. D. Davies), Academic Press, vol. 12, 265-318.

Clegg K. M., Sci. Fd. Agri. 7 (1956) 40-44.

Nelson N., J. Biol. Chem. 153 (1944) 375-380.

Danielson C. E., Nature 160 (1947) 889.

Englard S., Singer T. P., J. Biochem. 187 (1950) 213.

Barnell H. R., Annals. Bot. 20 (1941) 607-645.

Barnell H. R., Annals. Bot. 20 (1941) 607-645.

Bhagyalakshmi N., Prabha T. N., Yashoda H. M., Prasanna V., Jagadeesh B. H., Tharanathan R. N., Acta Hort. 575 (2002) 717-724. ( Received 26 November 2013; accepted 30 November 2013 ).

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