The freezing characteristics of wheat at ear emergence

Fuller, Michael P., Fuller, Andrew M., Kaniouras, Spyridon, Christopher, Jack and Frederiks, Troy (2007) The freezing characteristics of wheat at ear emergence. European Journal of Agronomy, 26 4: 435-441. doi:10.1016/j.eja.2007.01.001


Author Fuller, Michael P.
Fuller, Andrew M.
Kaniouras, Spyridon
Christopher, Jack
Frederiks, Troy
Title The freezing characteristics of wheat at ear emergence
Journal name European Journal of Agronomy   Check publisher's open access policy
ISSN 1161-0301
Publication date 2007-05-01
Sub-type Article (original research)
DOI 10.1016/j.eja.2007.01.001
Open Access Status Not yet assessed
Volume 26
Issue 4
Start page 435
End page 441
Total pages 7
Place of publication The Netherlands
Publisher Elsevier BV
Language eng
Formatted abstract
Wheat is occasionally exposed to freezing temperatures during ear emergence and can suffer severe frost damage. Few studies have attempted to understand the characteristics of freezing and frost damage to wheat during late development stages. It was clearly shown that wheat appears to have an inherent frost resistance to temperatures down to -5 °C but is extensively damaged below this temperature. Acclimation, whilst increasing the frost resistance of winter wheat in a vegetative state was incapable of increasing frost resistance of plants at ear emergence. It is proposed that the ability to upregulate frost resistance is lost once vernalisation requirement is fulfilled. Culms and ears of wheat were able to escape frost damage at temperatures below -5 °C by supercooling even to as low as -15 °C and evidence collected by infrared thermography suggested that individual culms on a plant froze as independent units during freezing with little or no cross ice-nucleation strategies to protect wheat from frost damage in the field appear to revolve around avoiding ice nucleation. © 2007 Elsevier B.V. All rights reserved.
Keyword Electrical conductivity
Frost resistance
Ice nucleation
Infrared thermography
Supercoooling
Wheat
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Fuller M., Fuller A., Kaniouras S., Christopher J. and Frederiks T. (2007) The freezing characteristics of wheat during flowering. European Journal of Agronomy 26:435-441.

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Fri, 07 Oct 2011, 02:19:34 EST by Dr Jack Christopher on behalf of Qld Alliance for Agriculture and Food Innovation