Monitoring Cold Hardiness of Tree Seedlings by Infrared Thermography


In this first known attempt, infrared imaging was used to relate foliage temperature to dormancy and degree of cold hardiness in tree seedlings. Species studied were Engelmann spruce, ponderosa pine, and Douglas-fir from northern Arizona. Preliminary results suggest that the dynamic responses of the foliage to changes in light (on/off) are potentially related to degree of cold hardiness. Until these initial results are confirmed in more exhaustive studies, and understood, infrared thermography cannot be recommended as an operational tool for seedling evaluation.
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Publication Forest Nursery Proceedings
Event Tumwater, WA - 1986
Author Robert James Laacke, Charles Phillip Weatherspoon, Richard W. Tinus
Published 1986/08/12
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