Diurnal patterns of wheat spectral reflectances and their importance in the assessment of canopy parameters from remotely sensed observations [PDF]
Spectral reflectances of Produra wheat were measured at 13 different times of the day at Phoenix, Arizona, during April 1979 using a nadir-oriented hand-held 4-band radiometer which had bandpass characteristics similar to those on LANDSAT satellites ...
Idso, S. B. +3 more
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COVER Project and Earth resources research transition [PDF]
Results of research in the remote sensing of natural boreal forest vegetation (the COVER project) are summarized. The study objectives were to establish a baseline forest test site; develop transforms of LANDSAT MSS and TM data for forest composition ...
Botkin, D. B., Estes, J. E.
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Ice storm effects on the canopy structure of a northern hardwood forest after 8 years [PDF]
, 2009 Ice storms can cause severe damage to forest canopies, resulting in differential mortality among tree species and size classes and leading to long-lasting changes in the vertical structure and composition of the forest.
Hamburg, Steven P. +2 more
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The influence of biotization on the morphophysiological parameters of regenerants of Vaccinium uliginosum l. at the stage of adaptation to ex vitro conditions [PDF]
BIO Web of ConferencesThe study assessed the biotization of regenerated Vaccinium uliginosum plants (Patriot cultivar) during adaptation to ex vitro conditions. The morphophysiological state of the plants was assessed non-invasively using a 3D multispectral scanner ...
Zhilyaeva Natalia +3 more
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Revista Brasileira de Ciência do Solo, 2018 Brazilian soybean producers commonly apply maintenance potassium (K) fertilization during cultivation to restore the K taken up by plants; however, this measure can modify the morphophysiological plant characteristics, since the functions of K are ...
Michel Esper Neto +4 more
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The morphological and phenological performance of different cotton genotypes under different plant density [PDF]
, 2017 The field experiment conducted with different plant density and different Genotypes showed significant differences in their morphological characters and phenological characters. Among the genotypes, AKA-7 possessed higher plant height (116.4 cm), No.
Karunakar, A. P. +3 more
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Exploring the limits of crop productivity: A model to evaluate progress [PDF]
The goal was to determine the limits of crop productivity when all environmental constraints were removed. Researchers define productivity as food output per unit of input.
Bugbee, Bruce
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Journal of Ecology and EnvironmentBackground: The leaf area index (LAI) quantifies the total one-sided green leaf area per unit of soil area, making it a crucial parameter in models that simulate carbon, nutrient, water, and energy fluxes within forest ecosystems. This study enhances LAI
Ali Yasin Ahmed +3 more
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Evaluation of fruit tree waterstress condition and transpiration with heat fl ux sensors
International Journal of Horticultural Science, 2016 In this study the transpiration properties and response to heat stress of Granny Smith and Jonagold apple species were measured. The examinations were set at an orchard near to Debrecen.
A. Nagy +5 more
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Wheat response to CO2 enrichment: CO2 exchanges transpiration and mineral uptakes [PDF]
When simulating canopies planted in varied densities, researchers were able to demonstrate that increase of dry matter production by enhancing CO2 quickly becomes independant of increase of leaf area, especially above leaf area index of 2; dry matter ...
Andre, M., Ducloux, H., Richaud, C.
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