Results 21 to 30 of about 4,811,303 (245)

Detection of calcium, magnesium, and chlorophyll variations of wheat genotypes on sodic soils using hyperspectral red edge parameters [PDF]

, 2022
Plants grown on sodic soils can suffer from macronutrient deficiencies, such as calcium (Ca), magnesium (Mg), and potassium (K), reducing health and growth.
Dang, Yash P, Das, Sumanta, Apan, Armando, Chapman, Scott, Vincent Mellor, Christopher, Jack, Neal W. Menzies, Jack Christopher, Sumanta Das, Armando Apan, Mellor, Vincent, Menzies, Neal W, Scott Chapman, Choudhury, Malini Roy, Yash P. Dang, Menzies, Neal W., Malini Roy Choudhury, Dang, Yash P.   +17 more
core   +1 more source

Temporal and Spectral Optimization of Vegetation Indices for Estimating Grain Nitrogen Uptake and Late-Seasonal Nitrogen Traits in Wheat

Sensors, 2019
Grain nitrogen (N) uptake (GNup) in winter wheat (Triticum aestivum L.) is influenced by multiple components at the plant organ level and by pre- and post-flowering N uptake (Nup). Although spectral proximal high-throughput sensing is promising for field
Lukas Prey, Urs Schmidhalter
doaj   +1 more source

Effect of the Red-Edge Band from Drone Altum Multispectral Camera in Mapping the Canopy Cover of Winter Wheat, Chickweed, and Hairy Buttercup

Drones, 2023
The detection and mapping of winter wheat and the canopy cover of associated weeds, such as chickweed and hairy buttercup, are essential for crop and weed management.
Clement E. Akumu, Sam Dennis
doaj   +1 more source

Assessing the Spectral Properties of Sunlit and Shaded Components in Rice Canopies with Near-Ground Imaging Spectroscopy Data

Sensors, 2017
Monitoring the components of crop canopies with remote sensing can help us understand the within-canopy variation in spectral properties and resolve the sources of uncertainties in the spectroscopic estimation of crop foliar chemistry.
Kai Zhou, Xinqiang Deng, Xia Yao, Yongchao Tian, Weixing Cao, Yan Zhu, Susan L. Ustin, Tao Cheng   +7 more
doaj   +1 more source

Remote sensing of grassland with contaminated soil using the spectral red-edge

, 2009
In most cases contaminants are concealed in soil and under vegetation and therefore cannot be measured directly by remote sensing. However, soil contaminants were detectedusing the spectral red-edge to indicate vegetation stress caused by the presence ...
Llewellyn, Gary Michael
core   +2 more sources

Reflectance Properties of Hemiboreal Mixed Forest Canopies with Focus on Red Edge and Near Infrared Spectral Regions

Remote Sensing, 2019
This study present the results of airborne top-of-canopy measurements of reflectance spectra in the spectral domain of 350−1050 nm over the hemiboreal mixed forest.
Lea Hallik, Andres Kuusk, Mait Lang, Joel Kuusk   +3 more
doaj   +1 more source

Application of red edge band in remote sensing extraction of surface water body: a case study based on GF-6 WFV data in arid area

Hydrology Research, 2021
This paper mainly researches the application method of red edge band in water body remote sensing extraction. Gaofen-6 (GF-6) WFV data were chosen for the high spatial resolution, more bands, and wide width. Two new methods were proposed: the single-band
Zhao Lu, Daqing Wang, Zhengdong Deng, Yue Shi, Zhibin Ding, Hao Ning, Hongfei Zhao, Jiazheng Zhao, Haoli Xu, Xiaoning Zhao   +9 more
doaj   +1 more source

Analysis of Vegetation Red Edge with Different Illuminated/Shaded Canopy Proportions and to Construct Normalized Difference Canopy Shadow Index

Remote Sensing, 2019
Shadows exist universally in sunlight-source remotely sensed images, and can interfere with the spectral morphological features of green vegetations, resulting in imprecise mathematical algorithms for vegetation monitoring and physiological diagnoses ...
Nianxu Xu, Jia Tian, Qingjiu Tian, Kaijian Xu, Shaofei Tang   +4 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Improving Intertidal Reef Mapping Using UAV Surface, Red Edge, and Near-Infrared Data

Drones, 2019
Coastal living reefs provide considerable services from tropical to temperate systems. Threatened by global ocean-climate and local anthropogenic changes, reefs require spatially explicit management at the submeter scale, where socioecological processes ...
Antoine Collin, Stanislas Dubois, Dorothée James, Thomas Houet   +3 more
doaj   +1 more source