Fructose-glucose ratio — A method to identify and classify the maturity of sugarcane
In a replicated field trial 30 varieties were studied for their Fructose /Glucose (F/G) ratio in juice for testing the maturity of the cane. Top, bottom portions and full cane juice were collected at 9 to 12 months at monthly intervals and fructose-glucose ratio were worked out. Varieties Co 775, Co 997, Co 62174, Co 6806, Co 7201, Co 7204, Co 7304, Co 7704, Co 7712, CoJ 64, CoC 671, CoA 7601 and Co 7508 recorded F/G ratio of more than unity in bottom cane juice from 9 to 12 months and at 10 to 12 months in juice of top cane. Full cane juice analysis indicated that Co 997, Co 62174, Co 6806 and CoC 671 showed F/G ratio of unity even at 9 months onwards. Varieties were identified and classified as early maturing types based on F/G ratio during maturity period.
Key wordsFructose-glucose ratio maturity sugarcane
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- Chiranjivi Rao, K. and Gopala Aiyar, K.V. (1962). Maturity testing of sugarcane-Fructose/Glucose ratio in sugarcane juice as a reliable intex of maturity.Ind. J. Sugarcane Res. and Dev.,6: 55–59.Google Scholar
- Chiranjivi Rao, K. (1977). Maturity and pre-harvest survey in sugarcane. Sugarcane Trg Progm. Cane. Dev. Staff Co-op. Sug. Ltd, Chittur, India.Google Scholar
- Hebert, L.P. and Rice, E.R. (1971). Maturity studies of commercial sugarcane varieties in Florida.Proc. Int. Soc. Sugarcane Tech., 14: 137–144.Google Scholar
- Irvine, J.E. (1974). Varieties in the ratio of dextrose to levulose in sugarcane.Proc. Int Soc. Sugarcane Tech.,15: 1033–1039.Google Scholar
- Parthasarathy, K. and Vijayasarathy, M. (1957). Fructoses in cane juices. Proc all India Conf. Sugarcane Res. Dev. Works. Pusa.,3: 203–206.Google Scholar
- Parthasarathy, K. and Vijayasarathy, M. (1958). Fructose-Glucose relation during vegetative and reproductive stages in sugarcane.Curr. Sci.,27: 257.Google Scholar
- Rousselet, G.R. (1967). Glucose ratio for maturity testing of sugarcane.Proc. Int. Soc. Sugarcane Tech.,12: 715–721.Google Scholar