Measuring Cold Hardiness in Woody Plants
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منابع مشابه
Deacclimation and reacclimation of cold-hardy plants: Current understanding and emerging concepts
The abilities of cold-hardy plants to resist deacclimation during transient warm spells and to reacclimate when cold temperatures return are significant for winter survival. Yet compared to the volume of research on the biology of cold acclimation, relatively little is known about how plants maintain and/or reacquire cold hardiness in late winter and spring. This review summarizes the past 40 y...
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Received for publication 21 Apr. 1999. Accepted for publication 5 May 1999. This work was supported by the U.S. Dept. of Agriculture–Agricultural Research Service, West Virginia Univ.–Agricultural Experiment Station, and the U.S. Dept. of Agriculture–National Research Initiative grant No. 9401825. West Virginia Univ. Agricultural Experiment Station Publication No. 2679. The cost of publishing t...
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It has been much disputed whether seasonal variations in proteins or in sugars are better related to cold hardiness changes in certain over-wintering plants (for example, 1, 2, 3, 8, 12, 14). But proteins have been difficult to study, since they are not easily extracted from such plants as our native winter-hardy trees. This is because such proteins are often precipitated by vacuolar substances...
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Winter survival in woody plants is controlled by environmental and genetic factors that affect the plant's ability to cold acclimate. Because woody perennials are long-lived and often have a prolonged juvenile (pre-flowering) phase, it is conceivable that both chronological and physiological age factors influence adaptive traits such as stress tolerance. This study investigated annual cold hard...
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Short day enhancement of cold acclimation in twigs of Cornus (red-osier dogwood), Weigela, and Pyracantha (firethorn) was studied using dark interruptions with red or with red-far red radiation. Hardiness was estimated by freezing stem tissues to preselected temperatures and evaluating injury electrolytically. Dark-period interruptions with red radiation suppressed cold acclimation in Cornus an...
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