Faculty
John Bamberg
Potato Introduction Station
4312 Hwy 42
Sturgeon Bay, WI 54235
Administration of the US working collection of potato germplasm, the Inter-Regional Potato Introduction Station (NRSP-6), Sturgeon Bay, WI. Research related to the introduction, preservation, classification, distribution and evaluation of wild and cultivated tuber-bearing species of Solanum (potato).
Bamberg Links
Paul Bethke
312 Horticulture
Focus is on the post-harvest physiology of potato tubers. Areas of emphasis include tuber water relations, carbohydrate metabolism, & physiological age. Experiments are conducted at the molecular, cellular, whole tuber, & commercial-storage levels. Long-term goals are to gain a more detailed understanding of potato physiology, and to identify specific molecular and cellular events that predict or influence the marketability of stored potatoes.
Bethke Links
Johanne Brunet
297 Horticulture
Evaluates plant mechanisms that influence gene flow among populations of horticultural crop plants, and between crops and free-living plants outside of agricultural systems; investigates mechanisms that could be deployed to retard or eliminate gene flow; evaluates the biological fitness of plant populations with foreign genes in model and agricultural environments; assess the potential risks of gene flow in agricultural systems.
Brunet Links
A.J. Bussan
492 Horticulture
Extension activities: Educational programming in commercial & fresh market potato & vegetable production systems.
Research activities: Precision management of potato & vegetables; influence of management & climate on growth & development of potato & vegetables; improve sustainability & economic value of vegetable production systems; refin production practices including seeding rate, timing & methodology, mulching, cover crops & green manures; increasing earliness in vegetable production; storage of crops; & improving crop quality.
Bussan Links
Jed Colquhoun
333 Horticulture
Extension activities: Provide educational programming for fresh market and processing vegetables and potatoes, berries and fruit, landscape and ornamentals, and organic production.
Research activities: Applied weed ecology, with an emphasis on practical strategies for management in horticultural crop production systems. Development of integrated strategies for weed management that improve the economic and environmental sustainability of crop production. Specific interests include crop tolerance or suppression of weed interference, weed resistance management, and parasitic weed ecology & management.
Colquhoun Links
Irwin Goldman
480 Horticulture
Research activities: Breeding and genetics of cross-pollinated vegetable crops. Molecular genetic investigations of horticulturally-desirable traits in vegetable crops. Development of carrot, onion, and beet inbred lines and hybrids. Human health functionality of vegetable crops.
Teaching: Hort 370 World Vegetable Crops; Hort 501 Principles of Plant Breeding; Hort 502 Techniques of Plant Breeding - all courses taught with Prof. Nienhuis
Goldman Links
Michael Havey
395 Horticulture
Molecular and classical genetics of vegetables, including the unique organellar genetics of Cucumis, anticarcinogenic compounds in the Alliums, mechanisms of virus resistance, and development of molecular markers for selection of high value traits. Genetic improvement and inbred development for cucumber and onion.
Teaching: Hort 550 Molecular Approaches for Potential Crop Improvement
Havey Links
Shelley Jansky
341A Horticulture
Potato germplasm enhancement using wild Solanum species. Identification of valuable traits in wild relatives and the determination of their genetic basis. Introgression of wild species germplasm into the cultivated potato. Reproductive biology focusing on crossing barriers and mechanisms to overcome these barriers. Ploidy manipulatoins using haploids and 2n gametes.
Jansky Links
Jiming Jiang
409A Horticulture
Research activities: Plant molecular cytogenetics; structural and functional characterization of plant centromeres; potato breeding and genomics; application of wild germplasm in potato improvement.
Teaching: Hort 561 Introductory cytogenetics
Jiang Links
Laura Jull
392 Horticulture
Extension activities: Clientele includes nurserymen, landscape contractors, grounds maintenance personnel, arborists, county extension agents, etc. Presentations given to these groups. Publish extension articles, fact sheets, and other publications.
Research activities: Plant evaluation & selection including hardy shrub roses, tolerance of ornamentals to deicing salts, and nitrogen utilization in landscape trees.
Teaching: Hort/LA 263 Landscape Plants I; Hort 375 Arborculture & Landscape Maintenance
Jull Links
Patrick Krysan
423A Horticulture
Research activities: Functional genomics using Arabidopsis thaliana as a model system. Signal transduction in Arabidopsis with a focus on MAP Kinase signaling pathways. Development of novel technologies for understanding gene function at the genomic level.
Teaching: Hort 555 Plant Functional Genomics & Bioinformatics
Krysan Links
Brent McCown
393 Horticulture
Research activities: Physiology of growth behavior in plants, plant propagation, microculture and micropropagation of plants. Biotechnology of woody perennial crops. Renewable resource management.
Teaching: Hort 227 Propagation of Horticultural Plants
McCown Links
James Nienhuis
321A Horticulture
Research activities: Breeding and genetics of self-pollinated crops, with a primary emphasis on snap beans. Development and testing of new breeding methodology for self pollinated crops. Integration of plant breeding with developing technologies in molecular biology. Emphasis on understanding the genetic phenomena of heterosis and genotype by environment interactions. Development of computer software to facilitate genetic analyses.
Teaching: Hort 121 Horticulture Colloquium (taught with Prof. Patterson); Hort 370 World Vegetable Crops; Hort 372 Colloquium on Organic Agriculture; Hort 374 Tropical Horticulture; Hort 501 Principles of Plant Breeding; Hort 502 Techniques of Plant Breeding (501 & 502 taught with Prof. Goldman)
Nienhuis Links
Jiwan Palta
490 Horticulture
Research activities: Genetics, physiology & molecular biology of environmental stress resistance & cold acclimation in plants. Identification of genes for cold acclimation & mechanism of freezing injury. Impact of calcium & nitrogen nutrition on potato tuber quality (including storability) & yield under heat and drought stress. Use of natural lipids to control fruit ripening, quality, storability & retardation of senescence.
Teaching: Hort 320 Environment of Horticultural Plants
Palta Links
Sara Patterson
486 Horticulture
Research activities: Genetics, molecular biology, and biochemistry of plant development. Specific interests include understanding the mechanisms that regulate cell separation and adhesion using floral organ abscission in Arabidopsis as a model system.
Teaching: Hort 120 Survey of Horticulture; Hort 121 Horticulture Colloquium (taught with Prof. Nienhuis)
Patterson Links
Philipp Simon
203B Horticulture
Genetics and biochemistry of culinary and nutritive factors in carrots and garlic. Terpenoid and sugar genetics. Genetics, plant cell culture, and genetic transformation. Graduate training in related areas.
Simon Links
David Spooner
280 Horticulture
Investigate the species boundaries and phylogenetic relationships of wild and cultivated potatoes (Solanum sect. Petota) and tomatoes (Solanum sect. Lycopersicon) using comparative morphology and DNA marker (nuclear and chloroplast RFLPs, AFLP) and DNA sequence analysis. Collects wild germplasm of these species in the United States, Mexico, Central and South America, and maintains a herbarium of the NRSP-6 potato collections at Sturgeon Bay, WI.
Spooner Links
John Stier
390 Horticulture
Extension activities: School IPM, golf course, athletic fields, extension agent training; pesticide applicator training.
Research activities: Environmental impacts of turf, turf stress physiology & management (shade and cold), turf weed management, sports & golf turf, evaluation of new turfgrass species and varieties.
Teaching: Hort 261 Turf Management; Hort 375 Lawns, Society $ the Environment (fall 2009); Hort 461 Advanced Turfgrass Management & Physiology
Stier Links
Dennis Stimart
423B Horticulture
Research activities: Physiology and genetics. Specific interests include: postharvest biology of cut flowers and adventitious root formation.
Teaching: Hort 232 Herbaceous Ornamental Plants I; Hort 233 Herbaceous Ornamental Plants II; Hort 334 Greenhouse Production of Ornamental Plants; Hort 335 Greenhouse Production of Ornamental Plants Lab
Stimart Links
Yiqun Weng
209 Horticulture
Research activities: Focus on cucumber genetics and breeding.
Research interests include: germplasm characterization and enhancement; genetics and genomics of important traits in cucumber; development of molecular markers and applications in breeding practice; genetic diversity, phylogenetics and comparative genomics in Cucumis species; development of cucumber genomic resources.
Weng Links
Brian Yandell
327A Horticulture and
Rm MSC-1239
Medical Sciences Center
1300 University Ave.
(Dept. of Statistics)
Research activities: Responsibilities span the range from theoretical statistics to applications in selected areas of agriculture.
Teaching: Statistical Methods for Bioscience I & II; Statistical Consulting, Theory & Application of Linear Models II; related courses.
Consulting: For CALS, provide on-line statistical consulting and conduct cooperative research.


