Sugarcane Variety Cold Tolerance

Kenneth Gravois  |  4/5/2017 12:59:12 PM

Freeze Affected Cane.jpg thumbnail

Sugarcane has been bred to be adapted to Louisiana's temperate climate. The varieties grown in Louisiana differ in their ability to withstand sub-freezing temperatures that can occur prior to the end of the harvest and processing season.

Scientists at the USDA-ARS plant a variety trial each year that, in the event of sub-freezing temperatures, can be harvested to assess the rate of deterioration of a sugarcane variety after a freeze event. Indicators of juice deterioration include a drop in juice pH, a rise in titratable acidity, juice purity drop, and an increase in polysaccharides and dextran, which ultimately lead to a drop in sucrose content and the inability to crystallize sucrose at the factory. The following table categorizes Louisiana sugarcane varieties' ability to withstand sub-freezing temperatures and subsequent sucrose deterioration.


ResistantIntermediateSusceptible
HoCP 04-838HoCP 96-540L 99-226
HoCP 09-804HoCP 00-950L 03-371
L 01-283L 01-299Ho 07-613
Ho 05-961
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