Full TGIF Record # 8348
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DOI:10.4141/cjps86-080
Web URL(s):http://pubs.aic.ca/doi/pdfplus/10.4141/cjps86-080
    Last checked: 09/29/2015
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Publication Type:
i
Refereed
Author(s):Gudleifsson, B. E.; Andrews, C. J.; Bjornsson, H.
Author Affiliation:Modvuvellir Agricultural Experimental Station, Akureyri,Iceland; chemistry and Biology Research Institute, Agriculture Canada, Ottawa, Ont.; Agricultural Rresearch Institute, Keldnaholti, Iceland
Title:Cold hardiness and Ice Tolerance of Pasture Grasses Grown and Tested in Controlled Environments
Source:Canadian Journal of Plant Science. Vol. 66, No. 3, July 1986, p. 601-608.
Publishing Information:Ottawa: Agricultural Institute of Canada
# of Pages:8
Keywords:TIC Keywords: Phleum pratense; Poa pratensis; Alopecurus pratensis; Festuca rubra subsp. rubra; Festuca pratensis; Deschampsia caespitosa; Alopecurus arundinaceus; Dactylis glomerata; Phalaris arundinacea; Acclimatization; Freezing; Resistance; Ice
Abstract/Contents:A number of forage grass species were tested for cold hardiness and ice tolerance after growth and cold hardening under controlled conditions. Tests exposing cold-hardened plants to a single level of stress separated species into statistically similar groups but, in a number of cases, the stress was not sufficient to kill plants so the true cultivar rankings were obscured. Derivation of the 50% killpoint from a wide range of levels of stress served to identify cold hardiness and ice tolerance levels of cultivars of 10 species. Ranked according to the most hardy cultivar of the species tested were: timothy (Phleum pratense L.), Kentucky bluegrass (Poa pratensis L.), meadow foxtail (Alopecurus pratensis L., red fescue(Festuca rubra L.), meadow fescue (Festuca pratensis L.), tufted hairgrass (Deschampsia caespitosa L.), creeping foxtail (Alopecurus arundinaceus L.), begings hairgrass (Deschampsia beringensis L.), orchardgrass (Dactylis glomerata L.), reed canarygrass (Phalaris arundinaceae). LT 50 values varied from -15.7 C for timothy to -4.7 C for reed canarygrass. cold hardiness and ice tolerance were only loosley associated (r =0.36). The most ice-tolerant species were berings and tufted hairgrasses and timothy with LI 50 values of 50, 39 and 44 d. respectively.
Language:English
References:20
Note:Contribution No. CBRI 1573
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gudleifsson, B. E., C. J. Andrews, and H. Bjornsson. 1986. Cold hardiness and Ice Tolerance of Pasture Grasses Grown and Tested in Controlled Environments. Can. J. Plant Sci. 66(3):p. 601-608.
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DOI: 10.4141/cjps86-080
Web URL(s):
http://pubs.aic.ca/doi/pdfplus/10.4141/cjps86-080
    Last checked: 09/29/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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