Horticulture & Agronomy Graduate Group Faculty
Scow, Kate M.
(530) 752-4632 – email@example.com
Microbial ecology; biodegradation of organic pollutants; bioremediation of contaminated soil and groundwater; waste treatment; agroecology; rhizosphere ecology; root-microbe interactions, nutrient cycling; soil microbiology.
(530) 752-2435 – firstname.lastname@example.org
Studies in plant development in model (Arabidopsis) and non-model (Vanilla and Phalaenopsis) systems, using developmental and imaging procedures in combination with molecular biology and genomic approaches. Current topics investigated include: (1) analysis of the role of the ATML1 homeobox gene during embryogenesis and meristem growth and development in the model system Arabidopsis, (2) flower and fruit development in the orchid of commerce, Vanilla planifolia, and Fusarium disease resistance in V. planifolia and the related species V. bahiana, and (3) pollination and post-pollination flower and fruit development in members of the Orchidaceae. Also has project that focuses on ex situ conservation of living natural species of Vanilla that can be used for vanilla fruit crop improvement.
(530) 752-7478 – email@example.com
Plant and crop modeling; environmental biophysics; transport processes in the soil-plant-atmosphere continuum.
Beckles, Diane M.
(530) 754-4779 – firstname.lastname@example.org
Genetic and biochemical mechanisms controlling carbon allocation in crop plants.
Bennett, Alan B.
(530) 752-1411 – email@example.com
Molecular biology of tomato fruit development and ripening; cell wall disassembly; intellectual property rights in agriculture.
Berry, Alison M.
(530) 752-7683 – firstname.lastname@example.org
Assessment of nitrogen-fixing landscape plants; cellular and molecular studies of root and nodule development; tree architecture and tree hazards; urban ecology.
(530) 752-9096 – email@example.com
Systems biology of fruit ripening, fruit-pathogen interactions, and postharvest quality.
Bloom, Arnold J.
(530) 752-1743 – firstname.lastname@example.org
Nutrient acquisition and carbon assimilation in relation to environmental stress; mechanisms of nitrogen uptake and assimilation.
(530) 752-4640 – email@example.com
Cellular and molecular bases of adaptation of plants to biotic and abiotic stress; the molecular bases of fruit quality.
Bradford, Kent J.
(530) 752-6087 – firstname.lastname@example.org
Development, maintenance, and expression of seed quality; plant water relations; developmental and growth regulation.
Brown, Patrick H.
(530) 752-0929 – email@example.com
Mineral nutrition of deciduous fruit and nut crops. Sustainable agriculture.
Brummer, E. Charles
(530) 752-9261 – firstname.lastname@example.org
Breeding, genetics, and genomics of alfalfa and other forage crops; germplasm and cultivar evaluation and development; traits of interest include yield, autumn dormancy, tolerance to drought, salinity, and grazing, and others.
Cantwell, Marita I.
(530) 752-7305 – email@example.com (not accepting students)
Preharvest factors affecting postharvest quality; postharvest recommendations for specialty vegetables; alternatives to postharvest fungicides and quarantine fumigants; physiology and handling of lightly processed vegetables.
Chetelat, Roger T.
(530) 752-6726 or 754-8647
Molecular and classical genetics of tomato; wide hybridization and interspecific incompatibility; use of molecular markers in breeding; germplasm conservation.
Crisosto, Carlos H.
(530) 752-7549 – firstname.lastname@example.org
Postharvest biology and technology of fruit; fruit quality and safety; understanding the orchard factors and postharvest factors that control fruit flavor and shelf life; developing technology to overcome fruit industry problems; applying genomic techniques to identify gene(s) responsible for fruit sensory attributes (both desirable and undesirable), and investigating physiological disorders such as chilling injury.
Dandekar, Abhaya M.
(530) 752-7784 – email@example.com
Transfer, expression and regulation of foreign genes in fruit and nut crops. Metabolic regulation and the cellular and molecular response of plants to environmental stress.
(530) 754-8715 – firstname.lastname@example.org
Biology and control of invasive species, in non-crop areas, including rangeland, forests, aquatics, natural ecosystems, utilities and rights-of-way. Species include yellow star thistle, Scotch thistle, perennial pepperweed, pampasgrass or jubata grass, and woody species in reforestation areas.
(530) 752-5159 – email@example.com
Wheat molecular genetics, genomics and breeding. Main interests are genes affecting flowering time, senescence, and frost tolerance.
(530) 752-6549 – firstname.lastname@example.org
Evolution of plant genomes and chromosomes; evolution of wheat and related species; construction of linkage maps based on molecular markers in wheat and related species in the tribe Triticeae; mechanism of the action of the Ph1 gene of wheat on crossing over between homoeologous chromosomes; molecular mechanisms of salt stress tolerance in wheat and its improvement.
Evans, Richard Y.
(530) 752-6617 – email@example.com
Management of commercial flower and nursery crops; nutrition of ornamental plants; container soil-plant interactions; propagation, production, and field establishment of plants for ecological restoration.
(530) 752-8538 – firstname.lastname@example.org
Plant-soil feedbacks; ecosystem restoration; ecosystem management; plant functional traits; ecosystem effects of plant species and plant species mixtures (and how those change depending on plant neighbors, environmental conditions and management practices); rangeland ecology; invasive species; plant-microbial interactions
Fennimore, Steven A.
(408) 755-2896 – email@example.com
Weed management in vegetable crops and small fruits, as well as weed seed physiology and seed bank ecology.
(530) 752-0507 – firstname.lastname@example.org
Production of pistachios, olives, citrus, figs, and persimmons; alternate bearing, pruning and rootstock evaluation; boron nutrition of pistachios; evaluation of citrus rootstocks for grapefruits and Mandarins; introduction of Mandarins, nitrogen fertigation; olive water use; fig cultivar and caprifig breeding; persimmon thinning.
(530) 752-1212 – email@example.com
Agroecological approaches to enhance cropping system resilience to climate change. Explore consequences of domestication and breeding on root architecture and ecology, implication for agroecosystem sustainability.
Gepts, Paul L.
(530) 752-7743 – firstname.lastname@example.org
Genetics of food legumes: crop evolution, genetic conservation, genomics, molecular evolution; use of information technology in teaching. Language abilities: spoken and written fluency in French, Flemish (Dutch), Spanish; some spoken German. Conducted research/taught in Latin America (Colombia, Ecuador, Bolivia, Brazil, Argentina), Africa (Malawi), Europe (Belgium, Germany, France).
Gilbert, Matthew E.
(530) 752-7846 – email@example.com
Physiological control over crop water use efficiency through stomatal and photosynthetic mechanisms; C3 and C4 crop physiological responses to water stress.
Gradziel, Thomas M.
(530) 752-1575 – firstname.lastname@example.org
Genetics of Prunus species; plant breeding.
Hanson, Bradley D.
(530) 752-8115 – email@example.com
Perennial crop nursery fumigation and herbicides; evaluation and management of herbicide-resistant weeds; chemical and non-chemical weed management in orchards and vineyards; enhancing integrated pest management through a better understanding of weed ecology.
Hartz, Timothy K.
(530) 752-1738 – firstname.lastname@example.org (not accepting students)
Culture and management of warm-season vegetables; soil and plant fertility; crop stand establishment.
Jasieniuk, Marie A.
(530) 752-8166 – email@example.com
Ecological genetics and evolution of agricultural weeds and invasive plants of natural systems.
(530) 752-7166 – firstname.lastname@example.org
Plant anatomy and morphology, plant developmental biology; roles of cell division, enlargement and differentiation in tissue and organ-level development; meristem determination; leaf development; systematics of chlorogalum (Liliaceae); post- harvest processing and defects of cotton fibers; cotton fiber cell wall cytochemistry.
(530) 752-7060 – email@example.com or firstname.lastname@example.org
Postharvest biology and technology of floricultural/ornamental crops, developing sustainable postharvest systems that enhance productivity while reducing losses due to postharvest disease or longevity issues; molecular basis of plant senescence and abscission; effect of environmental factors, such as water, temperature and diseases, on the performance of ornamental crops. Research Plant Physiologist with USDA-ARS and Adjunct Professor.
(530) 752-8108 – email@example.com
Investigates ways to improve crop production efficiency and environmental quality relative to crop production; works at the commodity and farming systems levels.
Knapp, Steven J.
(530) 752-6884 – firstname.lastname@example.org
Breeding and genetics of strawberry, genomics-enabled breeding, genomic selection, biodiversity and germplasm conservation, exotic germplasm utilization, quantitative genetics, and heterosis and hybrid crop breeding. Our research focuses on disease resistance, fruit quality, yield, photoperiodism, and other phenotypes of horticultural and economic importance in strawberry.
Laca, Emilio A.
(530) 754-4083 – email@example.com
Foraging behavior, range management, spatial heterogeneity and geostatistical applications; agricultural ecologist.
(530) 752-2588 – firstname.lastname@example.org
Integrated orchard management, with emphasis on almonds and walnuts; current projects include regional variety trials, rootstock trials, and canopy management research.
Lieth, J. Heinrich.
(530) 752-7198 – email@example.com
Greenhouse and nursery crop ecology; development of models and production tools for Easter lily, rose, chrysanthemum, and other ornamental crops; greenhouse environment control automation; automated irrigation.
(530) 752-3125 – firstname.lastname@example.org
Sustainable management of rice systems - in particular fertility management, nutrient and carbon cycling, water use, water quality, and greenhouse gas emissions.
(530) 902-7295 – email@example.com
Agronomy, sustainable intensification, cropping systems analysis, input use efficiency, integrating technology and data into production practices, disease and pest management.
Mackill, David J.
(530) 752-4940 – firstname.lastname@example.org
Rice genetics and breeding, genetics of abiotic stress tolerance and grain quality characteristics.
(530) 752-1747 – email@example.com
Phyllosphere microbiology, molecular biology of plant-microbe interactions, model and crop plant pathosystems, plant defenses against human and plant pathogens, stomatal immunity, bacterial pathogenesis on plants, produce contamination with human pathogens.
Michelmore, Richard W.
(530) 752-1729 – firstname.lastname@example.org
Lettuce genetics and breeding; classical and molecular genetics of disease resistance; plant biotechnology.
(530) 752-7512 – email@example.com
Alternatives to postharvest chemicals for control of insects, decay and physiological disorders; fruit responses to postharvest handling systems.
Mitchell, Jeffrey P.
(559) 646-6565 – firstname.lastname@example.org
Vegetable production; water management; agricultural ecology; crop management impacts on postharvest quality.
Neale, David B.
(530) 754-8431 – email@example.com
Discovery and understanding of the function of genes in forest trees, especially those controlling complex traits.
Oki, Lorence R.
(530) 754-4135 – firstname.lastname@example.org
Management of irrigation in landscapes and nurseries; effect of water quality (salinity) on plant growth; evaluating California native plants for use in landscape horticulture; introduction of plants for environmental horticulture.
Parfitt, Dan E.
(530) 752-7031 – email@example.com
Breeding and genetics of pistachio; characterization of genetic diversity in fruit and nut tree germplasm.
(530) 754-6141 – firstname.lastname@example.org
Plant systematics; taxonomy, evolution, and phylogenetic relationships of fruit crops and their wild relatives; molecular approaches to phylogeny reconstruction; ethnobotany.
(530) 752-9096 – email@example.com (not accepting students)
The roles of enzymes and proteins in developing and ripening fruit; identifying functions in green fruit that can improve the resistance of red fruit to pathogens; determining how Golden 2-like transcription factors regulate chloroplasts in fruit prior to ripening; characterizing proteins and enzymes that modify the plant cell wall during fruit ripening; developing transgenic rootstocks for grafting to improve scion products. Works primarily with tomato and Arabidopsis, but has also worked with strawberry and melons; works with necrotrophic fungal pathogens and transgenic plants to investigate the functions of proteins and enzymes.
Putnam, Daniel H.
(530) 752-8982 – firstname.lastname@example.org
Alfalfa and forage crops systems, alternative field crops, cellulosic energy crops, switchgrass, miscanthus, crop ecology.
(530) 752-5583 – email@example.com
Rangeland ecology and management; rangeland social-ecological systems; managing for multiple agricultural and ecological outcomes on working landscapes; sustainability; grazing lands.
(530) 752-1152 – firstname.lastname@example.org
Crop evolution, domestication, and population genetics.
(530) 746-8829 – email@example.com
Computational and statistical plant biology, linking crop modeling and genetics, quantitative and evolutionary genomics.
(530) 752-0928 – firstname.lastname@example.org
Impact of tree water status on productivity; water relations and physiological activity of fruit.
St. Clair, Dina.
(530) 752-1740 – email@example.com
Tomato genetics and breeding; classical and molecular genetics in plant improvement; manipulation of quantitative traits and gene introgression.
Suslow, Trevor V.
(530) 754-8313 – firstname.lastname@example.org
Integrated biotechnologies for postharvest quality; postharvest pathology and biocontrol; microbial-based postharvest quality and safety issues; Intelligent Transportation Systems.
(530) 752-0750 – email@example.com
Rangeland hydrology, water quality, nonpoint source pollution, grazing management.
(530) 752-0940 – firstname.lastname@example.org
Phytonutrient biochemistry and physiology; biosynthesis, accumulation and function of carotenoids and polyphenols in plants; targeted improvement of crop phytonutrient composition and content for enhanced nutritional and medicinal values.
Van Deynze, Allen
(530) 754-6444 – email@example.com
Biotechnology; development and application of molecular markers; development of novel traits in seed crops through biotechnology.
Van Horn, Mark. (530) 752-7645 – firstname.lastname@example.org
van Kessel, Chris.
(530) 752-7323 – email@example.com (not accepting students)
Agronomy, soil fertility, nutrient cycling, cropping systems, international agriculture.
(530) 752-8527 – firstname.lastname@example.org
Responses of root systems to stress, either in natural, agricultural or urban environments. Plant root systems, plant health, water use and quality, climate change, ecosystems, environment and natural resources, food systems, land use, sustainability, trees and forestry, urban issues.
Yoder, John I.
(530) 752-1741 – email@example.com
Plant genomics, parasitic plants, transposable elements and genome fluidity; plant-plant communications; plant molecular genetics.
(530) 752-4374 – firstname.lastname@example.org
Biochemistry of fruit flavors and aromas; investigation of the biochemical pathways involved in aroma formation in fruits and the regulation of these pathways during fruit maturation and after harvest.
Zwieniecki, Maciej A.
(530) 752-9880 – email@example.com
Mass and energy transport in plants; structure and function of plant vascular network; abiotic plant stress biology; interface between plant and environment.
(530) 752-2929 – firstname.lastname@example.org
Improvement of plant genetic resistance to diseases; fungal biology and mechanisms of pathogenicity; function and evolutionary dynamics of virulence factors; comparative genomics.
Fidelibus, Matthew W.
(559) 646-6510 – email@example.com
Extension Viticulturist; Effect of cultural practices.
Kurtural, S. Kaan
(707) 944-0126 – firstname.lastname@example.org
Improving production efficiency in vineyards by applying principles of canopy and crop load management using vineyard mechanization and applied water amounts; identifying quality improvement traits in berry composition by translating fundamental research into applied production practices in vineyards; evaluating alternative methods of control invasive species in vineyards.
Matthews, Mark A.
(530) 752-2048 – email@example.com
Environmental control of growth, productivity, and fruit quality, emphasizing photosynthesis; biophysics of cell expansion; physiological mechanisms involved in responses to water deficits; interactions of nutrient levels and water deficits; varietal improvement.
McElrone, Andrew J.
(530) 754-9763 – firstname.lastname@example.org
Sustainable water use in vineyards: physiological responses of grapevine roots/rootstocks to salinity, nutrients and drought; importance of aquaporins to root water uptake; development of sap flow techniques for grapevines with weighing lysimeter calibration; effects of vineyard floor management on grapevine water relations
(530) 754-4866 – email@example.com
Research focuses on the influence of both viticulture practices and environmental factors on winegrape ripening and composition and related wine quality. The emphasis is specifically on tannin and carotenoid biosynthesize. Both are important contributors to grape and wine quality; tannins contribute to mouth-feel (astringency) and bitterness, whereas carotenoids are the precursors to norisoprenoids which are important volatile compounds with a low olfactory threshold. A second research focus is investigations to determine the influence of different vinification practices on wine composition and quality.
Smart, David R.
(530) 754-7143 – firstname.lastname@example.org
Physiological ecology of grapevine roots; plant nutrient acquisition; competition between roots and microbial organisms for nitrogen; leaf exchanges of nitrogen trace gases; environmental and biotic controls on nitrogen trace gas emissions.
Steenwerth, Kerri L.
(530) 752-7535 - email@example.com
Sustainable vineyard management; invasive plant species and weed ecology in vineyard systems; water and nutrient-based mechanisms of plant competition; restoration of degraded soils in agriculture and natural systems; soil microbial ecology and plant - soil interactions; soil carbon stabilization and nitrogen trace gas production in agricultural systems.
Walker, M. Andrew.
(530) 752-0902 – firstname.lastname@example.org
Development of grape varieties, emphasizing disease resistance and rootstocks; genetics and mechanisms of resistance to grape pests and diseases; evolution and taxonomy of Vitaceae.
Williams, Larry E.
(559) 646-6558 – email@example.com
Whole plant physiology, nutrition and water relations of grapevines; effects of cultural practices on vine physiology; cultural techniques of the grapevine associated with the production of raisins and table grapes; carbon assimilation by and allocation in the vine; effect of senescence on gas exchange characteristics.
Burger, David W. (Retired) – firstname.lastname@example.org (not accepting students)
Woody plant developmental physiology; cell and tissue culture; plant propagation; water use in container-grown nursery plants.
DeJong, Ted M. (Retired)
(530) 752-1843 – email@example.com (not accepting students)
Environmental plant physiology; photosynthetic efficiency of tree crops relative to the utilization of nitrogen, water, and solar radiation.
Fischer, Albert J. (Retired) – firstname.lastname@example.org (not accepting students)
Ecophysiology and competition of weeds in rice, ecology, herbicide-resistant weeds, integrated weed management.
Gubler, Doug. (Retired)
(530) 752-0304 – email@example.com (not accepting students)
Research interests include biology and epidemiology of foliar pathogens of fruit crops, with emphasis on grapevine and strawberry diseases; trees, vines and small fruits.
Harding, James A. (Retired) – firstname.lastname@example.org (not accepting students)
Genetics and breeding of flower crops, with an emphasis on Gerbera; multivariate statistical methods; multitrait selection, inbreeding and crossbreeding; clonal selection and cultivar evaluation.
Hill, James E. (Retired)
– email@example.com (not accepting students)
Conducts research and education programs on rice based cropping systems, with focus on production technologies such as direct seeding, weed control, nutrition, residue management, and the relationship of these factors to environmental quality.
Jackson, Louise E. (Retired)
– firstname.lastname@example.org (not accepting students)
Plant/soil relationships; nitrogen cycling; agricultural ecology; management of vegetable production systems.
Johnson, Scott. (Retired) – email@example.com (not accepting students)
Production of plums, freestone peaches, nectarines, kiwi-fruit, apples, and Asian pears.
Labavitch, John M. (Retired)
(530) 752-0920 – firstname.lastname@example.org (not accepting students)
Postharvest biology of fruit and nuts; emphasis on cell wall polysaccharide metabolism and biochemistry of host-pathogen interactions.
Lanini, W. Thomas. (Retired)
– email@example.com (not accepting students)
Low input weed control in vegetables and agronomic crops.
Polito, Vito S. (Retired) – firstname.lastname@example.org (not accepting students)
Reproductive biology of fruit tree species, especially aspects of reproductive maturation, flowering, pollination and fruit-set.
Reid, Michael S. (Retired) – email@example.com (not accepting students)
Postharvest technology; handling and marketing of environmental plants; postharvest physiology; physiology of flowering; chilling injury; action of ethylene; molecular biology of flower senescence.
Saltveit, Mikal. (Retired)
– firstname.lastname@example.org (not accepting students)
Basic and applied physiological studies of abiotic stresses, primarily physical injury, temperature extremes and altered gaseous atmospheres.
Temple, Steve R. (Retired) –
email@example.com (not accepting students)
Agronomy and host plant resistance breeding of grain legumes, sustainable farming systems; fluent in Spanish.
(530) 759-1723 – firstname.lastname@example.org
Urban forestry; benefits and costs of urban vegetation, with an emphasis on climate, energy, carbon, and water use.
– email@example.com (not accepting students)
Biogeochemistry and ecosystem functioning, focusing on the relationship between the carbon and nitrogen cycle in determining ecosystem functioning.
(530) 752-4342 – firstname.lastname@example.org
Rice genetics and germplasm enhancement using conventional and molecular genetic approaches with emphasis on cold tolerance, disease resistance and grain quality; development of tools for functional and applied rice genomics.