Dr. Peter M.A. Toivonen

Image Peter Toivonen
Retired - Research Scientist

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

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. Toivonen, P.M.A., Lu, C., Bach, S.J., and Delaquis, P.J. (2015). "Hypoxic atmospheres can induce subsequent increases in cutting-induced hydrogen peroxide production by fresh-cut Romaine lettuce.", Acta Horticulturae (ISHS), 1071, pp. 519-526.

    2015 - View publication details

  20. Stanich, K., Cliff, M.A., and Toivonen, P.M.A. (2015 Confidential). Evaluation of the sensory characteristics of sweet cherries treated with Parka+™: A confidential report. AAFC Agri-Innovation Program. December 2015. (Report)

    2015 - View publication details

Research facility

4200 Highway #97
Summerland, BC V0H 1Z0
Canada

Language

English