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Toivonen, Peter, Ph.D.

Chercheur scientifique, physiologie postrécolte

Coordonnées :

Highway 97
C.P. 5000
Summerland, (Colombie-Britannique) V0H 1Z0
Téléphone : 250-494-6386
Télécopieur : 250-494-0755
Courriel : peter.toivonen@agr.gc.ca

Domaines d'expertise :

  • Qualité des fruits et des légumes fraîchement coupés
  • Processus d'antioxydants et de dégradation dans les fuits et légumes
  • Approches d'économie d'énergie pour l'entreposage
  • Physiologie postrécolte des fruits et légumes frais
  • Effets de la qualité du produit cru sur l'entreposage

Projets en cours :

  • Caractérisation de la qualité de nouveaux cultivars de pomme et de cerise douce en post-récolte
  • Amélioration de la flaveur des pommes AmbrosiaMC traitées au 1-méthylcyclopropène (1-MCP) et entreposées en atmosphère contrôlée
  • Phénotypage de la susceptibilité à l’échaudure molle et de marqueurs biochimiques de populations de jeunes plants de pommiers issus de croisements.

Affiliations :

  • Membre du projet régional S294 de l’USDA sur la qualité et l’innocuité des fruits et légumes tranchés à l’état frais
  • Ancien président du projet régional NE1036 de l’USDA sur la physiologie des fruits en post-récolte
  • Conseiller scientifique d’AAC pour le conseil de la British Columbia Cherry Association
  • Vice-président de la Commission sur la qualité et la conservation des produits horticoles pour la Société internationale de la science horticole
  • Membre du comité consultatif de rédaction du journal Postharvest Biology and Technology
  • Professeur associé à la Faculté des systèmes terrestres et alimentaires de l’Université de la Colombie-Britannique
  • Comité consultatif de rédaction, Postharvest Biology and Technology
  • Professeur auxiliaire, Faculté des terres et de l'alimentation, Université de la Colombie-Britannique
  • Représentant canadien au sein du Groupe de travail de PROCINORTE sur les fruits de verger

Publications de recherche

2019

  • 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, 99(1), 40-49. http://dx.doi.org/10.1139/cjps-2018-0193

2018

  • 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, 137 66-76. http://dx.doi.org/10.1016/j.postharvbio.2017.11.011
  • McClure, K.A., K.M. Gardner, G.M. Douglas, J. Song, C.F. Forney, J. DeLong, L. Fan, L. Du, P.M.A. Toivonen, D.J. Somers, I. Rajcan and S. Myles. 2018. A Genome-Wide Association Study of Apple Quality and Scab Resistance. Plant Genome. Vol. 11(1), pp. 1-14. DOI: 10.3835/plantgenome2017.08.0075.

2017

  • 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, 27(3), 416-423. http://dx.doi.org/10.21273/HORTTECH03621-16
  • 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, 132 145-153. http://dx.doi.org/10.1016/j.postharvbio.2017.05.015

2016

  • 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, 3 http://dx.doi.org/10.1038/hortres.2016.43

2015

2014

2013

2012

2011

  • Cliff, M.A., Stanich, K., Moran Trujillo, J., Toivonen, P.M.A., et Forney, C.F. (2011). « Determination and Prediction of Odor Thresholds for Odor Active Volatiles in a Neutral Apple Juice Matrix. », Journal of Food Quality, 34(3), p. 177-186. doi : 10.1111/j.1745-4557.2011.00383.x
  • Toivonen, P.M.A., Lu, C., Delaquis, P.J., et Bach, S.J. (2011). « Slicing under chlorinated water improves the disinfection of fresh-cut romaine lettuce. », Journal of Food Protection, 74(12), p. 2142-2147. doi : 10.4315/0362-028X.JFP-11-194

2010

2009

Autres publications relatives à la science

2020

  • MacDonald JL, Toivonen PMA. 2020. "Improving Blueberry Postharvest Quality: Utilizing Temperature Management for Packers." Agriculture & Agri-Food Canada, Summerland, BC. AAFC No. 13022E/F.

2017

  • 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.

2016

  • Cliff, M.A., Stanich, K., et 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. (Rapport)
  • O'Gorman, D.T., Haag, P., Urbez-Torres, J.R., Forge, T.A., Nelson, L.M., et 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. (Rapport)
  • 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
  • Stanich, K., Cliff, M.A., et 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. (Rapport)

2015

  • Hampson, C.R., McKenzie, D.-L., Herbert, L.C., et Toivonen, P.M.A. (2015). « Resistance of new sweet cherry cultivars to fruit pitting. », HortScience, 50(9: S255). (Résumé)
  • Hampson, C.R., McKenzie, D.-L., Herbert, L.C., et 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. (Affiche)
  • McClure, K.A., Gardner, K.M., Toivonen, P.M.A., Hampson, C.R., Lannard, B.L., Rajcan, I., Song, J., et 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.
  • Song, J., Forney, C.F., Myles, S., Sauerteig, K.A., Du, L., Hampson, C.R., Toivonen, P.M.A., Fan, L., DeLong, J.M., et Fillmore, S.A.E. (2015). « An integrated “omics” investigation on control mechanisms and molecular markers of apple fruit storage disorders. », AG Connect 2015 Summit, Truro, NS, USA, March 31-April 1, 2015. (Affiche)
  • Stanich, K., Cliff, M.A., et 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. (Rapport)
  • Toivonen, P.M.A., Cossentine, J.E., O'Gorman, D.T., et 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. (Rapport)
  • Toivonen, P.M.A., DeLong, J.M., Hampson, C.R., Song, J., Forney, C.F., et Myles, S. (2015). « Peel maturity only correlates with soft scald in a highly susceptible orchard of Ambrosia™ apple. », HortScience, 50(9), p. S181. (Résumé)
  • Toivonen, P.M.A., DeLong, J.M., Song, J., et 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.

2014

  • O'Gorman, D.T., Haag, P., Urbez-Torres, J.R., et Toivonen, P.M.A. (2014). Characterization and management of two cherry diseases in the Okanagan: cherry slip skin and cherry replant disease 2014. AIP-ASP reporting: Okanagan Plant Improvement Company (PICO)/Scientist Meeting Agenda – March 26, 2014: PARC-Summerland. (Rapport)
  • Toivonen, P.M.A. (2014). « DA meter assessment of apple maturity: Myths, realities and challenges. », Orchard Network Newsletter, 18(4), p. 10-11. (Bulletin)
  • Toivonen, P.M.A. (2014). « Managing sweet cherry quality - Importance of production and harvest practices. », Compact Fruit Tree, (August), p. 30.
  • Toivonen, P.M.A. (2014). Response of Aurora Golden Gala™ apples to 1-methylcyclopropene (1-MCP) treatment, controlled atmosphere storage (CAS) and storage temperature over short duration storage. Report to Summerland Varieties Corporation, 13 pp. (Rapport)
  • Toivonen, P.M.A. et Cliff, M.A. (2014). 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. AIP-ASP reporting: Okanagan Plant Improvement Company (PICO)/Scientist Meeting Agenda – March 26, 2014: PARC-Summerland. (Rapport)
  • Toivonen, P.M.A. et Hampson, C.R. (2014). « Replacement of existing cultivars with similar apples having better postharvest traits. », ISHS 29th International Horticultural Congress, Brisbane, Australia, August 17-22, 2014, Oral presentation.
  • Toivonen, P.M.A., O'Gorman, D.T., et Cossentine, J.E. (2014). 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. AIP-ASP reporting: Okanagan Plant Improvement Company (PICO)/Scientist Meeting Agenda – March 26, 2014: PARC-Summerland. (Rapport)

2013

  • Bach, S.J., Delaquis, P.J., Toivonen, P.M.A., et Lu, C. (2013). « Impact of hydrogen peroxide on Escherichia coli O157:H7 in vitro and in vivo on fresh-cut lettuce. », United Fresh 2013, San Diego Convention Center, San Diego, CA, USA, May 14-16, 2013, Abstract. (Affiche)
  • Bach, S.J., Delaquis, P.J., Toivonen, P.M.A., et Lu, C. (2013). « The effect of hypoxic treatment of Romaine lettuce on the survival of Escherichia coli O157:H7. », United Fresh 2013, San Diego Convention Center, San Diego, CA, USA, May 14-16, 2013, Abstract. (Affiche)
  • Bach, S.J., Guévremont, É., Bezanson, G.S., Brassard, H., Delaquis, P.J., Ells, T.C., Hodges, D.M., Toivonen, P.M.A., et Kostrzynska, M. (2013). Enhancing mitigation strategies for microbiological risks in fresh horticultural products. Research Project FINAL Report AAFC RBPI #1489. (Rapport)
  • Bach, S.J., Lu, C., Delaquis, P.J., et Toivonen, P.M.A. (2013). « Impact of wound induced hydrogen peroxide production on Escherichia coli O157:H7 in fresh-cut lettuce. », 5th Congress of European Microbiologists (FEMS 2013), Leipzig, Germany, July 21-25, 2013, Presentation. (Affiche)
  • Bach, S.J., Toivonen, P.M.A., Lu, C., et Delaquis, P.J. (2013). Multistate Research Project S-294. Postharvest Quality and Safety in Fresh-cut Vegetables and Fruits. 2012-2013 Activities Report. (Rapport)
  • Delaquis, P.J., Bach, S.J., Lu, C., et Toivonen, P.M.A. (2013). « Effect of environmental factors (field versus controlled environment chamber) on the survival of Escherichia coli O157:H7 on Romaine lettuce. », United Fresh 2013, San Diego Convention Center, San Diego, CA, USA, May 14-16, 2013, Abstract. (Affiche)
  • Toivonen, P.M.A. (2013). « Importance of Managing Humidity and Temperature from Harvest to Packinghouse. », 8 pages.
  • Toivonen, P.M.A. (2013). « Importancia de manejar la humedad y la temperatura desde la cosecha hasta el almacén. », 8 pages.
  • Toivonen, P.M.A. et Hampson, C.R. (2013). « Respiration rates of sweet cherry cultivars at optimal and abusive temperatures over three growing seasons. », VIIth International Cherry Symposium, Plasencia, Spain, June 23-27, 2013, Poster.
  • Toivonen, P.M.A., Lu, C., Bach, S.J., et Delaquis, P.J. (2013). « Hypoxic atmospheres can induce subsequent increases in cutting‐induced hydrogen peroxide production by fresh‐cut Romaine lettuce. », 11th International Controlled and Modified Atmosphere Research Conference, Trani, Italy, June 3-7, 2013. (Affiche)
  • Toivonen, P.M.A., Lu, C., Bach, S.J., et Delaquis, P.J. (2013). « Hypoxic treatment can enhance cut-edge hydrogen peroxide production in Romaine lettuce. », United Fresh 2013, San Diego Convention Center, San Diego, CA, USA, May 14-16, 2013, Abstract. (Affiche)

2012

  • Neilsen, G.H., Neilsen, D., Toivonen, P.M.A., et Kappel, F. (2012 Internal). Final report to IFTA. Harvest and storage quality of sweet cherry/ Gisela 6 managed with ultra high frequency irrigation and high P nutrition, 4pp. (Rapport)
  • Toivonen, P.M.A. (2012 Internal). OKCGA Project 11 –C, Temperature and shock treatment of CO2 on post-harvest cherries . Progress Report to the OKCGA. 13 pp. (Rapport)
  • Toivonen, P.M.A. (2012 Internal). Progress Report on Postharvest Storage and Quality Characteristics of ‘Silken’ Apple from the 2011 Season. Progress report to the PICO-DIAP board. 9 pp. (Rapport)
  • Toivonen, P.M.A. (2012). « Optimizing handling for superior fresh market quality of sweet cherries and potential value-added product », International Plum and Sweet Cherry Symposium, October 24-25, 2012, In : D. Martinez-Romero, D. Valero, M. Serrano, S. Castillo, F. Guillén and P.J. Zapata (eds). Ciruela y Cereza : del Campo al Consumidor (Plum and Sweet Cherry : from Field to Consumer), p. 159-164.
  • Toivonen, P.M.A. (2012). Essais d’entreposage de pommes Ambrosia en atmosphère contrôlée (2011-2012)., Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC). (Rapport)
  • Toivonen, P.M.A. (2012). Rapport d’étape sur l’entreposage et les caractéristiques de qualité des pommes ‘Silken’ après la récolte de la saison 2011., Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC). (Rapport)
  • Toivonen, P.M.A. (2012). Storage research 2011-12 season. Nicola™ News, February 2012, p. 2.
  • Toivonen, P.M.A., Mostofi, Y., Hampson, C.R., et Wiersma, P.A. (2012). « Evaluating the synchronicity of flesh and peel ripening in standard and new cultivars of apples. », Annual Conference of the American Society for Horticultural Science, Miami, Florida, USA, July 31-August 3, 2012. (Affiche)
  • Toivonen, P.M.A., Mostofi, Y., Hampson, C.R., et Wiersma, P.A. (2012). « Exciting New Technologies for Today. », Okanagan Fieldmens Association Horticultural Forum, Kelowna, BC, Canada, March 1, 2012.
  • Toivonen, P.M.A., Mostofi, Y., Hampson, C.R., et Wiersma, P.A. (2012). « Storage Research With New Cultivars. », 10th Ontario Fruit and Vegetable Convention (OFVC 2012), Niagara Falls, ON, Canada, February 22-23, 2012.
  • Toivonen, P.M.A., Mostofi, Y., Wiersma, P.A., et Hampson, C.R. (2012). Évaluation des appareils non destructifs de mesure de la maturité et de la qualité des pommes : résultats de 2011., Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC). (Rapport)

2011

  • Bach, S.J., Lu, C., Delaquis, P.J., et Toivonen, P.M.A. (2011). « Cutting Romaine lettuce while submerged in sanitizer improves efficacy of sodium hypochlorite. », The Grower, 61(5), p. 20.
  • Neilsen, D., Neilsen, G.H., Toivonen, P.M.A., et Kappel, F. (2011 Internal). Harvest and storage quality of sweet cherry/Gisela 6 managed with ultra high frequency irrigation and high P nutrition. Annual report to International Fruit Tree Association (IFTA), 5pp. (Rapport)
  • Toivonen, P.M.A. (2011 Internal). Activity 2, OKCGA co-funded research for P. Toivonen, PICO-DIAP March 2011 Report, 9 pp. (Rapport)
  • Toivonen, P.M.A. (2011 Internal). Réactions à l’entreposage et qualité post-récolte des pommes : Cultivons l’avenir d’AAC / PICO-DPAI Analyse des résultats de la première année (2010-2011), 13pp. (Rapport)
  • Toivonen, P.M.A. (2011). « DIAP Project 2010 – OKCGA Activities », BC Tree Fruit Horticultural Symposium 2011, Kelowna, BC, Canada, March 10-11, 2011.
  • Toivonen, P.M.A. et Hampson, C.R. (2011). « Phenotypic analysis of new sweet cherry and apple cultivars based on postharvest characteristics. », 4th International Conference Postharvest Unlimited 2011, Wenatchee, WA, USA, May 23-26, 2011, p. 69.
  • Toivonen, P.M.A., Lu, C., Delaquis, P.J., et Bach, S.J. (2011). « Timing of sanitizer application reduces microbial counts on fresh-cut Romaine lettuce. », 2nd ISHS International Conference on Quality Management of Fresh Cut Produce: Convenience Food for a Tasteful Life, Università degli Studi di Torino, Torino, Italy, July 17-21, 2011.

2010

  • Forney, C.F., Cliff, M.A., Liu, P.Y., et Toivonen, P.M.A. (2010). « Influence of packaging on the flavor of fresh-cut apple slices. », United Fresh 2010, Sands MegaCenter, Las Vegas, NV, USA, April 20-23, 2010. (Affiche)
  • Forney, C.F., Song, J., Toivonen, P.M.A., Cliff, M.A., Lu, C., et Jordan, M.A. (2010). « Factors affecting the flavor of fresh-cut apples. », 107th Annual Conference of the American Society for Horticultural Science (ASHS) for Speciality Crops, Palm Desert, CA, USA, August 2-5, 2010, Published in: HortScience, 45(8), pp. S57. (Résumé)
  • Lu, C., Toivonen, P.M.A., et Hodges, D.M. (2010). « Changes in antioxidant capacity of in vitro digests and methanolic extracts of postharvest spinach. », 2010 Canadian Institute of Food Science & Technology (CIFST) and AAFC Conference, Fairmont Winnipeg Hotel, Winnipeg, MB, Canada, May 30-June 1, 2010, # 03-3. (Résumé)
  • Toivonen, P.M.A. (2010). « Postharvest Physiology of Vegetables. », dans Sinha, N.K., Hui, Y.H., Özgül Evranuz, E., Siddiq, M. and Ahmed, J. (dir.) - Handbook of Vegetables and Vegetable Processing, Wiley - Blackwell, Chapitre 9.
  • Toivonen, P.M.A. (2010). « Wound Response Physiology in Fresh-Cut Fruits and Vegetables: Implications on Quality, Microbiology and Nutrition. », Gordon Research Conference on Postharvest Physiology, Tilton, NH, USA, June 27-July 2, 2010.
  • Toivonen, P.M.A. et Hampson, C.R. (2010). « Comparison of antioxidant content in apple cultivars using methanol extracts and simulated gastro-intestinal digest extracts. », Annual Conference of the American Society for Horticultural Science, Palm Desert, California, USA, August 2-5, 2010. (Affiche)
  • Toivonen, P.M.A. et Kappel, F. (2010). « Effect of Cold Storage Duration on Shelf Quality Attributes of ‘Bing’ and Five Sweet Cherry Cultivars Developed in the Summerland Breeding Program. », XXVIII International Horticultural Congress - IHC2010, Lisboa Congress Centre, Lisbon, Portugal, August 22-27, 2010, Session 8 - Postharvest Treatments, S02.077. (Présentation)
  • Toivonen, P.M.A., Lu, C., Delaquis, P.J., et Bach, S.J. (2010). « Evaluation of timing for application of sanitizing washes to reduce microbial counts on Romaine lettuce. », 14th Annual Federal Food Safety and Nutrition Research Meeting (FFSNRM), Ottawa, ON, Canada, November 3-4, 2010, p. 28.

2009

  • Bai, X., Prange, R.K., et Toivonen, P.M.A. (2009). « Pome Fruits. », dans Yahia, E.M. (dir.) - Modified and Controlled Atmospheres for the Storage, Transportation, and Packaging of Horticultural Commodities, CRC Press Taylor & Francis, Boca Raton, FL, USA, Chapitre 12.
  • Neilsen, G.H., Neilsen, D., Hogue, E.J., Toivonen, P.M.A., et Kappel, F. (2009 Internal). Understanding variation in cherry response to management treatments. Final report., Okanagan Kootenay Cherry Growers' Association (OKCGA), BC, Canada. (Rapport)
  • Neilsen, G.H., Neilsen, D., Toivonen, P.M.A., Herbert, L.C., Lannard, B.L., et Chung, L. (2009). Effect of Avail liquid fertilizer on apple tree P uptake and fruit quality., J.R. Simplot Company and Murphy Agro. (Rapport)
  • Neilsen, G.H., Neilsen, D., Toivonen, P.M.A., et Kappel, F. (2009 Internal). Harvest and storage quality of sweet cherry/Gisela 6 managed with ultra high frequency irrigation and high P nutrition. 4pp., International Fruit Tree Association (IFTA), Chesterfield, MO, USA. (Rapport)
  • Toivonen, P.M.A. et Hodges, D.M. (2009). « Leafy Vegetables and Salads. », dans Terry, L.A. (dir.) - Health-promoting properties of fruits and vegetables, CABI Publishing, Wallingford, UK, Chapitre 10.
  • Toivonen, P.M.A., Delaquis, P.J., et Orban, S. (2009). « Can variability in growth of human pathogens in fresh-cut romaine lettuce be associated with differences in wound-associated metabolism? », 13th Annual Federal Food Safety and Nutrition Research Meeting (FFSNRM), Ottawa, ON, Canada, November 4-5, 2009, p. 56-57.
  • Toivonen, P.M.A., Hampson, C.R., Wiersma, P.A., Lannard, B.L., et Lu, C. (2009). « Quality of Fresh-Cut Apple Slices is Modulated by Short Term Post-Controlled Atmosphere Air Storage of Whole Fruit. », 2009 Postharvest Pacifica - Pathway to Quality, Napier War Memorial Conference Centre, Napier, New Zealand, November 15-19, 2009.
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