Bioregulator-induced changes in the composition of sugarcane: effects of tops on processing
1994
Legendre, B.L. | Clarke, M.A. | Godshall, M.A.
The bioregulator glyphosate (N-phosphonomethyl glycine) increased sucrose % cane and the yield of theoretical recoverable sugar per ton of sugarcane (TRS/TC). For glyphosate treated sugarcane, there was a reduction in juice purity and reducing sugars to ash ratio but an increase in total polysaccharide (TPS), dextran, and leucoanthocyanin when compared to untreated but mature sugarcane. Glyphosate had no apparent effect on reducing sugars, inorganic ash, fiber % cane, or starch content. The use of glyphosate does not come without potential adverse affects on processing, namely the decrease in the reducing sugars to ash ratio and a possible increase in TPS and dextran content which can ultimately contribute to sugar losses and lower sugar quality. However, these negative responses to the use of glyphosate can be partially offset by cultivar selection and/or removing the leaves and upper portion of the stalk by topping.
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