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Yingmei Ma and Emily Merewitz

temperatures were measured using an infrared thermometer (Davis Instruments, Vernon Hills, IL). The temperature depression was calculated by subtracting ambient temperature in the growth chamber from the plant canopy temperature. Mineral nutrient determination

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Jacques R. Fouché, Stephanie C. Roberts, Stephanie J.E. Midgley, and Willem J. Steyn

measurement of irradiance compared with most other studies in which the light sensor is held horizontal. Peel temperature was measured using a high-performance infrared thermometer (Rayner MX4; Raytek Corporation, Santa Cruz, CA) aimed at the position on the

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Vijaya Shukla, Yingmei Ma, and Emily Merewitz

infrared thermometer was used to measure canopy temperature (Model 2956; Spectrum Technologies). Leaf electrolyte leakage (EL) was measured by taking ≈200 mg of leaf samples from each plant. The tissue was briefly rinsed in deionized water and then put into

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Travis Culpepper, Joseph Young, David T. Montague, Dana Sullivan, and Benjamin Wherley

( Huete and Jackson, 1987 ). Reflective canopy temperatures (Infrared Thermometer model 8872; Spectrum Technologies Inc., Aurora, IL) were collected with a single measurement from the center of each pot 2 d each week. Data were obtained between 1100 and

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Namiko Yamori, Yoriko Matsushima, and Wataru Yamori

. The temperature of directly lit leaves measured by an infrared thermometer was <0.5 °C higher than the air temperature. The plants were fertilized every week with a commercial fertilizer (NPK 6:10:5 diluted 1/1000; Hyponex, Osaka, Japan). The

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Sanjit K. Deb, Parmodh Sharma, Manoj K. Shukla, Theodore W. Sammis, and Jamshid Ashigh

minimum and maximum air temperature were measured continuously at 1-h intervals in the FGSC meteorological station. During March to October of the each year, leaf temperatures were measured once per month using an infrared thermometer (Fluke thermometer 54

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Juan O. Quijia Pillajo, Laura J. Chapin, and Michelle L. Jones

of the second fully opened leaf using a leaf porometer (SC-1; Decagon Devices, Pullman, WA). Leaf temperature was measured on the adaxial side of the second fully open leaf using an infrared thermometer (Digi-Sense, Vernon Hills, IL). The petunia leaf

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Tamara Wynne and Dale Devitt

. Physiological measurements were taken at midday (1130 to 1330 hr ) on the outer canopy of the trees in direct sunlight at a height of ≈180 cm on fully mature leaves. Canopy temperatures were measured with an infrared thermometer (model 39800; Cole Palmer

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Alexander Levin and Lloyd Nackley

agricultural systems, assessing leaf temperature as a proxy for water stress began in the 1960s ( Maes and Steppe, 2012 ) and has recently been popularized because of a proliferation of thermal cameras, infrared thermometers [IRTs ( Fig. 2C )], and remote

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Esnath T. Hamadziripi, Karen I. Theron, Magdalena Muller, and Willem J. Steyn

outside canopy fruit were also measured on the fruit surface perpendicular to the current position of the sun at the same time intervals as the light measurements using a high-performance infrared thermometer (Rayner MX4; Raytek Corporation, Santa Cruz, CA