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Herbicides as Ripeners for Sugarcane

Published online by Cambridge University Press:  20 January 2017

Caleb D. Dalley*
Affiliation:
USDA-ARS, Sugarcane Research Laboratory, 5883 USDA Rd., Houma, LA 70360
Edward P. Richard Jr.
Affiliation:
USDA-ARS, Sugarcane Research Laboratory, 5883 USDA Rd., Houma, LA 70360
*
Corresponding author's E-mail: caleb.dalley@ars.usda.gov

Abstract

Chemical ripening of sugarcane is an important component to profitable sugarproduction in the United States as well as other sugarcane industriesthroughout the world. Harvesting of sugarcane often begins before thesugarcane reaches the desirable maturity level. This is especially true inthe Louisiana sugarcane industry where the window for harvesting is limitedbecause of the risk of freezing temperatures encountered in a temperateclimate. Research on the application of chemicals, mostly of herbicideorigin, to enhance sucrose accumulation (ripening) or limit flowering toconserve stored sucrose has been conducted for more than 60 yr. The onlysugarcane ripener currently registered for use in the United States isglyphosate applied before harvest. The herbicide fluazifop is used as theprimary ripener of sugarcane in South Africa. The herbicides glyphosate,fluazifop, and sulfometuron-methyl and the growth regulators ethephon andtrinexapac-ethyl are registered for use in Brazil. There is a continuingneed to evaluate sugarcane ripeners to increase the utility of currentlyregistered ripeners and to find additional ripeners for use by sugarcaneindustries. The need for alternatives to glyphosate is especially criticalbefore a glyphosate-tolerant sugarcane can be utilized to improve control ofproblematic weeds.

Information

Type
Symposium
Copyright
Copyright © Weed Science Society of America 

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