Steve Loewen
Processing Tomato Breeding
College Professor
Degrees:
B.Sc. (Agr.) Horticultural Science – University of Guelph
M.Sc. Horticultural Crop Breeding – University of Guelph
Research Interests:
In a broad sense, I am interested in variation in horticultural plants. Specifically, my research focuses on breeding processing tomatoes for Ontario growers and processors. I also have interests in taxonomy and identification of cultivated plants.
Recent or current projects include:
- Enhancing the nutritional value of processing tomatoes using genes that dramatically increase lycopene and other carotenoids
- Broadening the genetic base of processing tomatoes (Solanum lycopersicum) by releasing regionally adapted breeding lines using germplasm introgressed by V. Poysa based on S. arcanum, S. chilense, S. habrochaites, S. lycopersicoides ans S. pimpinellifolium
- Evaluation of modified mass selection as a breeding method to develop durable disease resistance to anthracnose, early blight and bacterial spot in processing tomatoes
- Cultivar evaluation of processing tomato cultivars
Research Associates:
| Richard Wright Technician Ridgetown Campus Phone: 519-674-1500 x63659 rwright@ridgetownc.uoguelph.ca |
Jennifer Newport Technician Ridgetown Campus Phone: 519-674-1500 x63659 jnewport@ridgetownc.uoguelph.ca |
Teaching:
I teach in the Horticulture Diploma program at Ridgetown Campus. Courses include:
For potential partners:
Contract breeding, disease resistance screening and variety evaluation services are available. Custom seed increase of open-pollinated tomato cultivars for other research projects is available. Materials transfer agreements are developed through the Office of Research and accompany all germplasm releases. For more information, please email me.

