Skip to Main Content
Critical temperature: A quantitative method of assessing cold toleranceAuthor(s): D.H. DeHayes; M.W., Jr. Williams
Source: Gen. Tech. Rep. NE-134. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 p.
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
PDF: View PDF (555.99 KB)
DescriptionCritical temperature (Tc), defined as the highest temperature at which freezing injury to plant tissues can be detected, provides a biologically meaningful and statistically defined assessment of the relative cold tolerance of plant tissues. A method is described for calculating critical temperatures in laboratory freezing studies that use electrical conductivity as a viability assay, using analysis of variance as a means of partitioning variance and estimating error. Evidence presented indicates that critical temperatures are strongly correlated with field assessments of winter injury, sufficiently precise to detect subtle differences in cold tolerance, and highly repeatable from year to year. It is suggested that the critical temperature method of assessing cold tolerance can be extended to a diversity of plant species and studies.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
CitationDeHayes, D.H.; Williams, M.W., Jr. 1989. Critical temperature: A quantitative method of assessing cold tolerance. Gen. Tech. Rep. NE-134. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 p.
- Influence of simulated snow cover on the cold tolerance and freezing injury of yellow-cedar seedlings
- Shoot winter injury and nut cold tolerance: Possible limitations for American chestnut restoration in cold environments? In: Sniezko, Richard A.; Yanchuk, Alvin D.; Kliejunas, John T.; Palmieri, Katharine M.; Alexander, Janice M.; Frankel, Susan J., tech
- Red spruce (Picea rubens Sarg.) cold hardiness and freezing injury susceptibility. Chapter 18
XML: View XML