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United States Department of Agriculture

Agricultural Research Service

Title: Canopy Temperature Depression and Drought Response in Winter Wheat: Optimal Time of Sampling for the Yield Prediction and Genotypic Differentiation

item Balota, Maris - TEXAS A&M UNIVERSITY
item Payne, William - TEXAS A&M UNIVERSITY
item Evett, Steven
item Lazar, Mark - SELF

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: September 22, 2005
Publication Date: September 24, 2005
Citation: Balota, M., Payne, W.A., Evett, S.R., Lazar, M.D. 2005. Canopy temperature depression and drought response in winter wheat: Optimal time of sampling for the yield prediction and genotypic differentiation [abstract]. InterDrought-II, The 2nd International Conference on Integrated Approaches to Sustain and Improve Plant Production Under Drought Stress, September 24-28, 2005, Rome, Italy.

Technical Abstract: Canopy temperature depression (CTD) has been proposed as the best method for yield evaluation and selection for wheat drought and heat resistance because it is cheap, fast, and easy to use. However, under certain environments correlation of CTD with grain yield was poor and wheat varieties were not differentiated by this method. Commonly, these studies showed that canopy temperatures were significantly influenced by the microclimate, stage of vegetation and time of the day, and therefore, continuous CTD monitoring should improve our ability to determine the best sampling time. This monitoring is easy to do today due to the recent development of feasible sensors and data loggers when coupled with regression tree statistical models.

Last Modified: 4/19/2015
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