A5100450447- Plant Water Relations and Carbon Dynamics
- Plant responses to elevated CO2
- Greenhouse Technology and Climate Control
- Crop Yield and Soil Fertility
- Plant Physiology and Cultivation Studies
- Climate change impacts on agriculture
- Legume Nitrogen Fixing Symbiosis
- Horticultural and Viticultural Research
- Plant-Microbe Interactions and Immunity
- Plant and animal studies
- Plant nutrient uptake and metabolism
- Nematode management and characterization studies
- Bioenergy crop production and management
- Corporate Finance and Governance
- Arsenic contamination and mitigation
- Atmospheric chemistry and aerosols
- Light effects on plants
- Plant Molecular Biology Research
- Plant and fungal interactions
- Forest ecology and management
- Plant Pathogens and Fungal Diseases
- Photosynthetic Processes and Mechanisms
- Soil Carbon and Nitrogen Dynamics
- Cocoa and Sweet Potato Agronomy
- Financial Reporting and Valuation Research
University of Washington
2016-2025
U.S. Arid Land Agricultural Research Center
2024
University of Tampa
2019-2023
Seattle University
2023
CJ CheilJedang (South Korea)
2019
Daejeon University
2016-2019
Center for Urban Waters
2017-2018
Rural Development Administration
2018
National Institute of Animal Science
2018
University of Wisconsin–La Crosse
2016
Potential consequences of climate change on crop production can be studied using mechanistic simulation models. While a broad variety maize models exist, it is not known whether different diverge grain yield responses to changes in climatic factors, or they agree their general trends related phenology, growth, and yield. With the goal analyzing sensitivity simulated yields temperature atmospheric carbon dioxide concentrations [CO2 ], we present largest model intercomparison date, including...
Accurate predictions of crop yield are critical for developing effective agricultural and food policies at the regional global scales. We evaluated a machine-learning method, Random Forests (RF), its ability to predict responses climate biophysical variables scales in wheat, maize, potato comparison with multiple linear regressions (MLR) serving as benchmark. used data from various sources regions model training testing: 1) gridded wheat grain yield, 2) maize US counties over thirty years,...
Theobroma cacao (cacao) is cultivated in tropical climates and exposed to drought stress. The impact of the endophytic fungus Trichoderma hamatum isolate DIS 219b on cacao's response was studied. Colonization by delayed drought-induced changes stomatal conductance, net photosynthesis, green fluorescence emissions. altered expression 19 expressed sequence tags (ESTs) (seven leaves 17 roots with some overlap) detected using quantitative real-time reverse transcription PCR. Roots tended respond...
With increasing effects of global climate change, there is a strong interest in developing biofuels from trees such as poplar (Populus sp.) that have high C sequestration rates and relatively low chemical inputs. Using plant-microbe symbiosis to maximize plant growth increase host stress tolerance may play an important role improving the economic viability environmental sustainability feedstock. Based on our previous research, total ten endophyte strains were selected consortium investigate...
Summary Sustainable production of biomass for bioenergy relies on low‐input crop production. Inoculation crops with plant growth‐promoting endophytes has the potential to reduce fertilizer inputs through enhancement biological nitrogen fixation (BNF). Endophytes isolated from native poplar growing in nutrient‐poor conditions were selected a series glasshouse and field trials designed test overall hypothesis that naturally occurring diazotrophic impart growth promotion host plants. Endophyte...
Accurate prediction of phenological development in maize ( Zea mays L.) is fundamental to determining crop adaptation and yield potential. A number thermal functions are used models, but their relative precision predicting has not been quantified. The objectives this study were (i) evaluate the eight functions, (ii) assess effects source data on ability differentiate among (iii) attribute response across various temperature ranges. Data sets represent >1000 distinct hybrids, >50...
Microbial communities in the endosphere of Salicaceae plants, poplar (Populus trichocarpa) and willow (Salix sitchensis), have been demonstrated to be important for plant growth promotion, protection from biotic abiotic stresses, degradation toxic compounds. Our study aimed investigate bio-control activities endophytes against various soil borne pathogens including Rhizoctonia solani AG-8, Fusarium culmorum, Gaeumannomyces graminis var. tritici, Pythium ultimum. Additionally, different...
Terrestrial laser scanner (TLS)-based leaf area index (LAI) retrieval is an appealing concept, due to the ability capture structural information of canopies as 3-D point cloud data (PCD). TLS-based LAI estimation methods promise a nondestructive tool for spatially explicit calibration estimated by aerial or satellite remote sensing techniques. These also overcome sky condition restrictions on-ground optical instruments such hemispherical photography frequently used estimation. This paper...
Abstract Smallholder farmers in sub‐Saharan Africa (SSA) currently grow rainfed maize with limited inputs including fertilizer. Climate change may exacerbate current production constraints. Crop models can help quantify the potential impact of climate on yields, but a comprehensive multimodel assessment simulation accuracy and uncertainty these low‐input systems is lacking. We evaluated varying [CO 2 ], temperature rainfall conditions yield, for different nitrogen (N) (0, 80, 160 kg N/ha)...
The following three models were combined to predict simultaneously photosynthesis, stomatal conductance, transpiration and leaf temperature of a rose leaf: the biochemical model photosynthesis Farquhar, von Caemmerer Berry (1980, Planta149: 78–90), conductance Ball, Woodrow (In: Biggens J, ed. Progress in research. Netherlands: Martinus Nijhoff Publishers), an energy balance model. photosynthetic parameters: maximum carboxylation rate, potential rate electron transport triose phosphate...
Abstract The effects of CO 2 enrichment on the growth and physiology maize were investigated at molecular, biochemical, leaf, canopy levels. Maize plants grown in sunlit soil–plant–atmosphere research (SPAR) chambers ambient (370 μmol mol −1 ) or elevated (750 atmospheric carbon dioxide concentration ( C a under well‐watered fertilized conditions. Canopy gas exchange rates leaf temperatures monitored continuously during growing season. did not enhance photosynthesis plants. However,...
Soil amendment with biochar is thought to confer multiple benefits plants including induction of systemic resistance plant pathogens. Pathogens in the genus Phytophthora cause damaging diseases woody species throughout world. The objective this study was test 1) whether induces canker causing pathogens; and 2) how related amount two common landscape tree species: Quercus rubra (L.) Acer rubrum (L.). Seedlings Q. A. were planted peatmoss-based potting mix uniformly amended 0%, 5%, 10%, or 20%...
The microbiome of plants is diverse, and like that animals, important for overall health nutrient acquisition. In legumes actinorhizal plants, a portion essential nitrogen (N) obtained through symbiosis with nodule-inhabiting, N2-fixing microorganisms. However, variety non-nodulating plant species can also thrive in natural, low-N settings. Some these may rely on endophytes, microorganisms live within to fix N2 gas into usable forms. Here we report the first direct evidence fixation early...
ABSTRACT Rice ( Oryza sativa L.) is one of the most important staple food crops. Its cultivation requires a relatively high input N fertilizers; however, rice plants do not absorb significant proportion added fertilizers, resulting in soil and water pollution. The use diazotrophic (N‐fixing) endophytes can provide benefits for by reducing demand fertilizers. Diazotrophic from early successional plant species poplar Populus trichocarpa Torr. & A. Gray) willow Salix sitchensis C. Sanson ex...
Abstract Essential nutrients, including carbohydrates, proteins, fats, vitamins, and minerals, are required for human health development. Inadequate intake can negatively affect development result in a wide range of adverse outcomes. Rice, maize, wheat provide over 60% the world’s food energy intake. Atmospheric carbon dioxide (CO 2 ), water, nitrogen, soil micronutrients basis this plant material. Since 1850–1900, CO concentrations have increased about 50%, with most that increase since...
Abstract Plants that grow and thrive under abiotic stress often do so with the help of endophytic microorganisms. Although nitrogen‐fixing (diazotrophic) endophytes colonize many wild plants, these natural relationships may be disrupted in cultivated crop species where breeding genotype selection occur conditions intensive fertilization irrigation. Many energy crops including corn still benefit from diazotrophic endophyte inoculations allowing for more efficient biomass production less input...