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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/4414

Title: Use of canopy temperature as an indicator for water use efficiency and yield productivity in wheat
Authors: Alderfasi, Ali A.
Morgan, Jack A.
Keywords: Canopy Temperature
Indicator
Water Use Efficiency
Yield Productivity
Wheat
Agricultural Sciences
Issue Date: 1998
Publisher: King Saud University
Citation: Saudi Journal of bio sci: 5 (1); 57-71
Abstract: Significant variations were found for water use (ET) and water use efficiency (WUE) among seven winter wheat genotypes. These variations were explained by canopy temperature (Tc) differences. The genotype TAM 101 had the highest seasonal water used and maintained low WUE in both seasons of the study, and was ranked among genotypes that had warm canopies. The strong correlation among canopy temperature, seasonal water use, and WUE indicates that canopy temperature measurements during grain-filling stage may be used to identify wheat genotypes according to their water use, WUE, and consequently yield performance under both irrigated and non-irrigated conditions. Yield reduction under water stress conditions was less for Bezostaya and Chisholm genotypes compared to the other five genotypes. The contrasting behavior of canopy temperature of these two genotypes, under both treatments irrigated and non-irrigated plots, suggested different plant strategies (prodigal vs. conservative) for maintaining yield in water-limited environments. The results suggest that Tc measured under irrigated and non-irrigated treatments is good indicator of crop water status and yield performance.
URI: http://hdl.handle.net/123456789/4414
Appears in Collections:College of Foods And Agricultural Science

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