Journal ArticleDOI
Normalizing the stress-degree-day parameter for environmental variability☆
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In this paper, several experiments involving the measurement of foliage-air temperature differentials (TF-TA) and air vapor pressure deficits (VPD) were conducted on squash, alfalfa, and soybean crops at Tempe and Mesa, Arizona; Manhattan, Kansas; Lincoln, Nebraska; St Paul, Minnesota; and Fargo, North Dakota.About:
This article is published in Agricultural Meteorology.The article was published on 1981-01-01. It has received 1094 citations till now.read more
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Physiological and environmental regulation of stomatal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer
TL;DR: In this article, a system of models for the simulation of gas and energy exchange of a leaf of a C3 plant in free air is presented, where the physiological processes are simulated by sub-models that: (a) give net photosynthesis (An) as a function of environmental and leaf parameters and stomatal conductance (gs); (b) give g, as well as the concentration of CO2 and H2O in air at the leaf surface and the current rate of photosynthesis of the leaf.
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Canopy temperature as a crop water stress indicator
TL;DR: In this paper, a crop water stress index (CWSI) was calculated using infrared thermometry, along with wet and dry-bulb air temperatures and an estimate of net radiation.
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Significant remote sensing vegetation indices: A review of developments and applications
Jinru Xue,Baofeng Su +1 more
TL;DR: The spectral characteristics of vegetation are introduced and the development of VIs are summarized, discussing their specific applicability and representativeness according to the vegetation of interest, environment, and implementation precision.
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Estimating crop water deficit using the relation between surface-air temperature and spectral vegetation index
TL;DR: In this article, the authors proposed the vegetation index/temperature trapezoid, which combines spectral vegetation indices with composite surface temperature measurements to allow application of the crop water stress index (CWSI) theory to partially-vegetated fields without knowledge of foliage temperature.
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The red edge of plant leaf reflectance
TL;DR: In this paper, a detailed study of the red edge spectral feature of green vegetation based on laboratory reflectance spectrophotometry is presented, where a parameter lambda is defined as the wavelength is defined by the wavelength of maximum slope and found to be dependent on chlorophyll concentration.
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Journal ArticleDOI
Canopy temperature as a crop water stress indicator
TL;DR: In this paper, a crop water stress index (CWSI) was calculated using infrared thermometry, along with wet and dry-bulb air temperatures and an estimate of net radiation.
Journal ArticleDOI
Wheat canopy temperature: A practical tool for evaluating water requirements
TL;DR: In this paper, the authors used a sliding cubic smoothing technique to calculate daily water contents and thus water depletion rates for the entire growing season and used this to predict water use by wheat in six differentially irrigated plots.
Journal ArticleDOI
Remote-sensing of crop yields.
TL;DR: The development of the SDD concept makes possible crop yield estimates from remotely acquired canopy temperatures and auxiliary air temperature measurements obtained during the period from head emergence to the cessation of head growth, making the technique potentially adaptable to predictions of crop yields by remote-sensing.