The information and recommendations in this newsletter are applicable to North Carolina and may not apply in other areas.
The information and recommendations in this newsletter are applicable to North Carolina and may not apply in other areas.
From: Gerald J. Holmes; Extension Plant Pathologist
With sweetpotato harvest in full swing and temperatures dropping, it is a good time to be reminded about chilling injury. Sweetpotatoes originated in the tropics and are extremely sensitive to temperatures below 55 F. Roots should never be left in the field overnight after digging and prior to storage and curing, even during warm weather. The actual temperature and duration will determine the extent of injury. Visual symptoms of chilling injury include pitting and may not develop until several days following exposure. Chilled roots do not exude latex when cut and are more susceptible to postharvest decay.
Another result of exposure of roots to low temperatures is called hardcore. This is when root tissue remains hard after cooking. Affected roots cannot be detected prior to sale and cooking.
Employment and program opportunities are offered to all people regardless of race, color, national origin, sex, age or disability. North Carolina State University, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating.
Last modified on December 1, 2000 by Stephen J. Toth, Jr.