Abstract
Low temperature is a key weather factor that places a limit on where trees and shrubs will survive and where crops can be grown successfully. The hardiness of a woody species is usually rated according to the lowest average minimum temperature at which it could survive. DeGaetano and Shulman (1990) have recently reviewed climatic classifications of plant hardiness in North America. The two most widely used hardiness maps are the Arnold Arboretum (AA) map developed by Rehder (1927) and modified most recently by Wyman (1961) and the US Department of Agriculture (USDA) map (USDA 1960; Skinner 1962). Both maps divide North America into ten zones based on long-term averages of the lowest minimum temperature recorded during each year at a large number of stations. The maps differ in zone definitions and do not show any micro- or meso-scale climate variations.
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© 1992 Springer-Verlag Berlin Heidelberg
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Kalma, J.D., Laughlin, G.P., Caprio, J.M., Hamer, P.J.C. (1992). Biological and Phenological Aspects of the Relationship Between Low Temperature, Plant Growth and Crop Development. In: The Bioclimatology of Frost. Advances in Bioclimatology, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58132-8_7
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DOI: https://doi.org/10.1007/978-3-642-58132-8_7
Publisher Name: Springer, Berlin, Heidelberg
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