HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Fowler, D. B. Articles by Carles, R. J. Search for Related Content PubMed Articles by Fowler, D. B. Articles by Carles, R. J. Agricola Articles by Fowler, D. B. Articles by Carles, R. J.

Growth, Development, and Cold Tolerence of Fall-acclimated Cereal Grains¹

Areas of adaptation of winter cereals are determined primarily by each species' ability to tolerate cold. These differences in cold hardiness were investigated during fall acclimation of spring and winter cultivars of rye (Secale cereale L.), wheat (Triticum aestivum L.), barley (Hwrdeum vulgwre L.), and oats (Avena sativa L). Material for these studies was acclimated under field conditions in the fall of 1972, 1975 and/or 1977 at Saskatoon, Sask., Canada.

Spring cultivars ocasionally demonstrated a limited ability to acclimate to cold. The maximum cold hardiness attained by the hardiest cultivar of each species when fully acclimated was –13, –15, –21, and –30 C for. oats, barley, wheat, and rye, respectively.

During acclimation, crown and shoot dry weight increased and days to head and percent crown water decreased for most of the cultivars considered. In both spring and winter cultivars, dry matter accumulated at a rate which would suggest that energy production during the acclimation period was not a limiting factor for cold acclimation under normal fall field conditions. Percent crown water was closely associated with cold hardiness for comparisons within species. However, there were differences in the responses among species indicating that acclimation to cold was more complex than simply the regulation of tissue water content.

Key Words: Secale coreale L. • Triticum aestivum L. • Avena sativa L. • Cold tolerance • Dry weight • Percent crown water • Days to head • Plant erectness

² Research scientist, Crop Dev. Ctr., Univ. of Saskatchewan, Saskatoon, Sask., Canada, S7N OWO and field research specialist, BASF Canada Inc., 604-1027 Cameron Ave., S.W., Calgary, Alberta, Canada, T2T OK3.

Received for publication March 26, 1979.

This article has been cited by other articles:

				D. B. Fowler Cold Acclimation Threshold Induction Temperatures in Cereals Crop Sci., May 1, 2008; 48(3): 1147 - 1154. [Abstract] [Full Text] [PDF]

				J. T. Svensson, C. Crosatti, C. Campoli, R. Bassi, A. M. Stanca, T. J. Close, and L. Cattivelli Transcriptome Analysis of Cold Acclimation in Barley Albina and Xantha Mutants Plant Physiology, May 1, 2006; 141(1): 257 - 270. [Abstract] [Full Text] [PDF]