Notes: Relationship Between Black Locust Seedling Age and Induction of Cold Hardiness
Abstract:Shortened daylengths and reduced temperatures were used to induce cold hardiness in black locust seedlings ranging from 1 to 4 months in age. Between 100 and 300 nonhardened control seedlings and hardened seedlings were observed for degree of induced cold hardiness at each of 4 months in age. Seedlings are not capable of attaining maximum cold hardiness during the first 2 months of growth. Maximum hardiness can be achieved by the third month and does not increase further by the fourth month of growth. Rapid growth rates during the first 2 months may influence seedling capacity to develop maximum cold hardiness. Forest Sci. 22:208-210.
Document Type: Miscellaneous
Affiliations: Research Specialist, School of Forestry, Fisheries, and Wildlife, University of Missouri, Columbia, 65201
Publication date: June 1, 1976
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