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Notes: Relationship Between Black Locust Seedling Age and Induction of Cold Hardiness

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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.

Keywords: Robinia pseudoacacia; growth rates

Document Type: Miscellaneous

Affiliations: Research Specialist, School of Forestry, Fisheries, and Wildlife, University of Missouri, Columbia, 65201

Publication date: June 1, 1976

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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