A5038871545- Plant biochemistry and biosynthesis
- Plant Water Relations and Carbon Dynamics
- Plant Gene Expression Analysis
- Microbial Metabolic Engineering and Bioproduction
- Irrigation Practices and Water Management
- Forest ecology and management
- Greenhouse Technology and Climate Control
- Plant responses to water stress
- Remote Sensing in Agriculture
- Soil and Unsaturated Flow
- Remote Sensing and LiDAR Applications
- Bamboo properties and applications
- Phytochemistry and biological activity of medicinal plants
- Urban and Freight Transport Logistics
- Sugarcane Cultivation and Processing
- Climate change impacts on agriculture
- Bioenergy crop production and management
- Banana Cultivation and Research
- Photosynthetic Processes and Mechanisms
- Genomics and Phylogenetic Studies
- Soil Moisture and Remote Sensing
- 3D Modeling in Geospatial Applications
- Satellite Image Processing and Photogrammetry
- 3D Surveying and Cultural Heritage
- Plant-Microbe Interactions and Immunity
University of Arizona
2019-2023
Mansoura University
2007-2022
Agricultural Research Service
2019
Highlights Cotton yield and water productivity were measured for different precision irrigation management solutions. Agronomic improvements from site-specific based on spatial FAO-56 crop coefficient data minor. Thermal remote sensing unoccupied aircraft systems able to identify limitations. Integrated modeling tools that can achieve intended agronomic outcomes should be prioritized. Abstract . Diverse technologies, methodologies, sources have been proposed inform decisions, the...
Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently world's only source of natural rubber, grown as monoculture, leaving it vulnerable both biotic abiotic stressors. Isolation from guayule occurs by mechanical harvesting entire plant. It has been reported that environmental conditions leading up harvest have profound impact on yield. The link between biosynthesis drought,...
Abstract Small unoccupied aircraft systems (sUAS) are becoming popular for mapping applications in agriculture, and photogrammetry software is available developing orthorectified imagery three‐dimensional surface models. Ground control points (GCPs), which objects or locations with known geographic coordinates, may be required accurate image georeferencing. However, few studies have compared global position equipment among sUAS investigated the effects of GCP number arrangement on...
Deficit irrigation can maximize the water productivity (WP) of guayule and increase percent rubber (%R) in shrubs compared to meeting full crop evapotranspiration (ETc). In this study, we hypothesize that certain deficit strategies impose soil deficits during specific periods growth or throughout growing season might produce higher %R equivalent yield (RY), thereby, increasing WP irrigation. Herein, responses direct-seeded different schemes were evaluated an experiment on a silty clay loam...
<abstract> <bold>Abstract.</bold> Guayule (Parthenium argentatum) is being produced for high-quality, domestic rubber in Arizona, U.S.A, desert areas, where irrigation requirements are high. Past guayule research was mostly conducted over two to three decades ago and provided some insight on water management production. However, improved practices now needed increase yield productivity reduce its use. In 2012, field experiments were initiated Maricopa, Arizona using a cultivar (Yulex-B),...
The WINDS (Water-Use, Irrigation, Nitrogen, Drainage, and Salinity) model was developed to provide decision support for irrigated-crop management in the U.S. Southwest. uses a daily time-step soil water balance (SWB) simulate dynamics of content profile evapotranspiration. employs tipping bucket approach during infiltration events Richards’ equation between events. This research demonstrates simulation furrow-irrigated cotton experiment, conducted 2007 central Arizona, Calibration procedures...
Guayule (Parthenium argentatum, A. Gray) is a perennial desert shrub with ratoon-cropping potential for multiple harvests of its natural rubber, resin, and bagasse byproducts. However, yield expectations, water use requirements, irrigation scheduling information ratooned guayule are extremely limited. The objectives this study were to evaluate dry biomass (DB), contents rubber (R) resin (Re) yields (RY) (ReY) responses treatments, develop management criteria guayule. productivity (WP) the...
The WINDS (Water-Use, Irrigation, Nitrogen, Drainage, and Salinity) model uses the FAO56 dual crop coefficient a daily time-step soil–water balance to simulate evapotranspiration water content in soil profile. This research calibrated for simulation of guayule under full irrigation. Using data from furrow irrigated two-season experiment Arizona, this developed segmented curves basal coefficient, canopy cover, height root growth. (Kcb) curve included first second season development,...
<supplementary-material / <b><sc>Abstract.</sc></b> We investigated the use of a ground based digital camera to monitor plant moisture content, biomass and rubber content guayule. These parameters are typically assessed using destructive sampling lab analyses, which labor intensive time consuming. A method predict these by camera-based (red-green-blue [or RGB]) vegetation indices could offer an effective affordable alternative sampling. RGB derived from images were related dry weights linear...
<b><sc>Abstract.</sc></b> Guayule (Parthenium argentatum, Gray) commercialization depends on economical plant production. Establishment costs can be reduced significantly with direct seeding instead of transplanting. However, available irrigation water management strategies are entirely based transplanted guayule data. Since direct-seeded and plants develop different root structures, they also likely to have use soil requirements. The objective this study was evaluate compare production...
<abstract> <bold>Abstract.</bold> Fraction of plant evapotranspiration (ET<sub>f</sub>) can be estimated reasonably well using surface energy balance models. Recent studies have ET<sub>f</sub> models such as Surface Energy Balance Algorithms for Land (SEBAL) and Mapping Evapotranspiration at high Resolution with Internalized Calibration (METRIC) satisfactory results local regional scales. However, due to the need quality data along personnel skilled knowledgeable in modeling, a simpler...
<b><sc>Abstract.</sc></b> Guayule (Parthenium argentatum, A. Gray) is a perennial shrub, native to the desert of northcentral Mexico and southwestern Texas, which produces high quality natural rubber. The annual water requirement under flood irrigation approximately 732 mm (2.4 acre-ft/year), within allocation depth for many central Arizona farmers. However, uncertainty supply in some areas, growers might be forced cut irrigations or adjust their cropping practices. When used, guayule...
Extensive research has been conducted using satellite and aerial imagery to observe vegetation status.Nonetheless, these platforms have limitations, particularly with regard cost, limited spatial temporal resolution.Remotely piloted vehicles (RPV) are effective, low cost alternatives satellites manned aircraft for acquiring high-resolution images.In this study, remotely constructed from a commercially available remote control model airplane was used as sensing platform determine normalized...
Abstract Background Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently world’s only source of natural rubber, grown as monoculture, leaving it vulnerable both biotic abiotic stressors. Isolation from guayule occurs by mechanical harvesting entire plant. It has been reported that environmental conditions leading up harvest have profound impact on yield. The link between...
Abstract Background Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently world’s only source of natural rubber, grown as monoculture, leaving it vulnerable both biotic abiotic stressors. Isolation from guayule occurs by mechanical harvesting entire plant. It has been reported that environmental conditions leading up harvest have profound impact on yield. The link between...
Abstract Background Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently world’s only source of natural rubber, grown as monoculture, leaving it vulnerable both biotic abiotic stressors. Isolation from guayule occurs by mechanical harvesting entire plant. It has been reported that environmental conditions leading up harvest have profound impact on yield. The link between...
Abstract Background Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently world’s only source of natural rubber, grown as monoculture, leaving it vulnerable both biotic abiotic stressors. Isolation from guayule occurs by mechanical harvesting entire plant. It has been reported that environmental conditions leading up harvest have profound impact on yield. The link between...