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Abstract
Growth cracking is an external noninfectious physiological disorder of the potato tuber in which the tuber splits while growing. The split heals but leaves a fissure in the tuber. Growth cracks generally start at the bud or apical end of the potato and can extend lengthwise. They vary in severity from a surface abrasion to a split through the tuber, depending on the stage of growth during which the initial cracking occurred. This revised 2-page fact sheet was written by L. Zotarelli, C. Hutchinson, S. Byrd, D. Gergela, and D. L. Rowland, and published by the UF Department of Horticultural Sciences, May 2012.
HS930/HS182: Potato Physiological Disorders—Growth Cracks (ufl.edu)
References
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Hiller, L. K., D. C. Koller, and R. E. Thornton. 1985. "Physiological Disorders of Potatoes." In Potato Physiology, edited by P.H. Li, 389-455. New York: Academic Press. https://doi.org/10.1016/B978-0-12-447660-8.50017-X
Hiller, L.K., and R. E. Thornton. 2008. "Managing Physiological Disorders." In Potato Health Management: Plant Health Management Series, edited by D. A. Johnson, 235-245. St. Paul, MN: The American Phytopathological Society.
Jefferies, R. A., and D. K. L. MacKerron. 1987. "Observations on the Incidence of Tuber Growth Cracking in Relation to Weather Patterns." Potato Research 30(4): 613-623. https://doi.org/10.1007/BF02367642
Selman, L., N. Andrews, A. Stone, and A. Mosley. 2008. "What's Wrong with My Potato Tubers? Diagnosing Tuber Abnormalities in Western Oregon and Washington." Oregon State University Extension Service and Western Region Sustainable Agriculture Research and Education. Accessed January 8, 2012. http://extension.oregonstate.edu/catalog/pdf/em/em8948-e.pdf.