Dr. Peter M.A. Toivonen

Posharvest Physiology and Phenomics in Fruit Crops
Current research and/or projects
- Postharvest characterization phenotyping of quality in newly released apple and sweet cherry cultivars
- Phenotyping of soft scald susceptibility and biochemical markers in seedling populations from specified breeding crosses of apples
Professional activities / interests
- Past Chair of USDA NE1036 Regional Project ‘Postharvest Physiology of Fruits’
- AAFC Science Advisor to the board of the British Columbia Cherry Association
- Vice-Chair of Commission Quality and Postharvest Horticulture for the International Society for Horticultural Science
- Editorial Advisory Board Member for Postharvest Biology and Technology
- Canadian Representative on PROCINORTE Tree Fruit Task Force
Key publications
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MacDonald JL, Toivonen PMA. 2020. "Improving Blueberry Postharvest Quality: Stacking for Optimal Temperature Management." Agriculture and Agri-Food Canada, Summerland, BC. 13021E/F.
2020 - View publication details
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MacDonald JL, Toivonen PMA. 2020. "Improving Blueberry Postharvest Quality: Utilizing Temperature Management for Packers." Agriculture & Agri-Food Canada, Summerland, BC. AAFC No. 13022E/F.
2020 - View publication details
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MacDonald JL, Toivonen PMA. 2020. "Improving Blueberry Postharvest Quality: Managing the Atmosphere of Shipped Berries." Agriculture and Agri-Food Canada, Summerland, BC. 13023E/F.
2020 - View publication details
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Ross, K.A., Toivonen, P.M.A., Godfrey, D.V., Fukumoto, L. (2020). An assessment of the attributes of staccato sweet cherries at harvest and upon storage in relation to orchard growing factors. Canadian Journal of Plant Science, [online] 100(6), 609-628. http://dx.doi.org/10.1139/cjps-2019-0303
2020 - View publication details
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Toivonen, P.M.A., Lu, C., Stoochnoff, J. (2019). Postharvest quality implications of preharvest treatments applied to enhance ambrosia™ apple red blush colour at harvest. Canadian Journal of Plant Science, [online] 99(1), 40-49. http://dx.doi.org/10.1139/cjps-2018-0193
2019 - View publication details
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McClure, K.A., Gardner, K.M., Douglas, G.M., Song, J., Forney, C.F., Delong, J., Fan, L., Du, L., Toivonen, P.M.A., Somers, D.J., Rajcan, I., Myles, S. (2018). A genome-wide association study of apple quality and scab resistance. Plant Genome, [online] 11(1), http://dx.doi.org/10.3835/plantgenome2017.08.0075
2018 - View publication details
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Luo, H., Song, J., Toivonen, P., Gong, Y., Forney, C., Campbell Palmer, L., Fillmore, S., Pang, X.Q., Zhang, Z.Q. (2018). Proteomic changes in ‘Ambrosia’ apple fruit during cold storage and in response to delayed cooling treatment. Postharvest Biology and Technology, [online] 137 66-76. http://dx.doi.org/10.1016/j.postharvbio.2017.11.011
2018 - View publication details
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Cliff, M.A., Toivonen, P.M.A. (2017). Sensory and quality characteristics of ‘Ambrosia’ apples in relation to harvest maturity for fruit stored up to eight months. Postharvest Biology and Technology, [online] 132 145-153. http://dx.doi.org/10.1016/j.postharvbio.2017.05.015
2017 - View publication details
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Toivonen, P.M.A. and Cliff, M.A. 2017. Progress Report for Project ID number J-000379. P020-BCFGA- Canadian Tree Fruit Products Development - Activity 4: Update on Improving Ambrosia™ Apple Quality after Long Term Storage February 2017. AAFC Agri-Innovations Project Annual Activity Report, 16 pp.
2017 - View publication details
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Cliff, M.A., Stanich, K., Toivonen, P.M.A. (2017). Evaluation of the sensory, physicochemical, and visual characteristics of a sweet cherry cultivar treated in a commercial orchard with a cherry cuticle supplement when a rainfall event does not occur. HortTechnology, [online] 27(3), 416-423. http://dx.doi.org/10.21273/HORTTECH03621-16
2017 - View publication details
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Stanich, K., Cliff, M.A., and Toivonen, P.M.A. (2016). Sensory profiling of Ambrosia apples produced using reflective row cover or foliar phosphorous spray at two orchards in the Similkameen Valley: A project report. AAFC Agri-Innovation Program. July 2016. (Report)
2016 - View publication details
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Cliff, M.A., Stanich, K., and Toivonen, P.M.A. (2016 Confidential). Sensory profiling of Ambrosia apples from static low oxygen and dynamic controlled atmosphere storage followed by an air and/or air plus oxygen period – A confidential report. AAFC Agri-Innovation Program. 11 pp. August 9 2016. (Report)
2016 - View publication details
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O'Gorman, D.T., Haag, P., Urbez-Torres, J.R., Forge, T.A., Nelson, L.M., and Toivonen, P.M.A. (2016). Characterization and management of two cherry diseases in the Okanagan: cherry slip skin and cherry replant disease. AIP-ASP reporting: BC Cherry Growers Association/Summerland Varieties Corp - Interim Report, January 1,2016. (Report)
2016 - View publication details
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O`GORMAN D.T. , WALKER M., FRASERJ., BOULE J., ÚRBEZ-TORRES J.R. AND TOIVONEN P. M. 2016. Unravelling cherry slip-skin maceration disorder. BC-CPS meeting 2016 Summerland. Canadian J. of Plant Path. Vol. 38: 533-540
2016 - View publication details
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McClure, K.A., Gardner, K.M., Toivonen, P.M.A., Hampson, C.R., Song, J., Forney, C.F., DeLong, J., Rajcan, I., Myles, S. (2016). QTL analysis of soft scald in two apple populations. Horticulture Research, [online] 3 http://dx.doi.org/10.1038/hortres.2016.43
2016 - View publication details
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Toivonen, P.M.A., DeLong, J.M., Hampson, C.R., Song, J., Forney, C.F., and Myles, S. (2015). "Peel maturity only correlates with soft scald in a highly susceptible orchard of Ambrosia™ apple.", HortScience, 50(9), pp. S181. (Abstract)
2015 - View publication details
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Toivonen, P.M.A., Cossentine, J.E., O'Gorman, D.T., and Urbez-Torres, J.R. (2015 Confidential). Progress Report for Project ID number J-000378. P020-BCFGA- Canadian Tree Fruit Products Development - Activity 3: Postharvest characterization of apple and sweet cherry quality. (Report)
2015 - View publication details
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McClure, K.A., Gardner, K.M., Toivonen, P.M.A., Hampson, C.R., Lannard, B.L., Rajcan, I., Song, J., and Myles, S. (2015). "Genetic mapping using next-generation DNA sequencing in apple.", Canadian Plant Genome Workshop (CPGW 2015), Victoria, BC, Canada, August 1-13., 2015.
2015 - View publication details
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Toivonen, P.M.A., DeLong, J.M., Song, J., and Forney, C.F. (2015). "Peel Maturity only Correlates with Soft Scald in a Highly Susceptible Orchard of Ambrosia™ apple.", American Society for Horticultural Science (ASHS) Annual Conference 2015, New Orleans, Louisiana, USA, August 4-7, 2015.
2015 - View publication details
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Hampson, C.R., McKenzie, D.-L., Herbert, L.C., and Toivonen, P.M.A. (2015). "Resistance of new sweet cherry cultivars to fruit pitting.", American Society for Horticultural Science (ASHS) Annual Conference 2015, New Orleans, Louisiana, USA, August 4-7, 2015. (Poster)
2015 - View publication details
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