School of Agriculture, Food and Wine
Faculty of Sciences
Eligible to supervise Masters and PhD - email supervisor to discuss availability.
I am a viticulture researcher and educator based at the Waite Campus of the University of Adelaide. I received my doctorate in 2014 from Cornell University where I worked on developing sensors for measuring plant and soil water status.
My current research is in the area of grapevine ecophysiology with a particular focus on how the environment influences vine performance and productivity. My research places considerable emphasis on modeling the interactions between environment, especially water availability, and grapevines to predict their growth and yield under changing climatic conditions. My research also seeks to understand how biotic (e.g. virus infections) and abiotic (e.g. drought) stresses affect grapevine physiological performance and productivity.
I am also working in the areas of proximal and remote sensing of vineyards, and to use this high spatial and temporal resolution information to improve our ability to manage vineyards using variable rate inputs.
- The role of aquaporins in determining the growth potential of grapevine shoots
- Understanding the physiological limitations to enhanced transpiration efficiency in order to improve leaf-scale water use efficiency (WUE)
- Deficit irrigation strategies to reduce night transpiration and improve WUE
- Mitigation of heat stress in grapevines using mister-based cooling
Advanced Sensing Technologies in Vineyards:
- Detection of biotic and abiotic stresses in grapevines using proximal and remote sensing techniques
- Yield estimation using on-the-go sensors
- Continuous in situ measurements of plant water status
Date Position Institution name 2015 Lecturer in Viticulture University of Adelaide 2014 - 2015 Assistant Professor of Viticulture Oregon State University
Language Competency English Can read, write, speak, understand spoken and peer review German Can read, write, speak and understand spoken
Date Institution name Country Title 2009 - 2014 Cornell University United States Ph.D. 2005 - 2008 Cornell University United States M.S. 2001 - 2005 Brock University Canada B.Sc.(Hons.) 1993 - 1999 McGill University Canada B.Eng. (Computer)
Year Citation 2018 Pagay, V. (2018). Whole-canopy gas exchange chambers to accurately estimate canopy water use of ‘Tempranillo’ grapevines (Vitis vinifera L.) under various irrigation regimes in a semi-arid climate. Acta Horticulturae, 1197(1197), 77-82.
2018 Pagay, V., & Skinner, A. (2018). Continuous in situ measurements of crop water stress in ‘Shiraz’ grapevines using a thermal diffusivity sensor. Acta Horticulturae, 1197(1197), 83-88.
2018 Doerflinger, F., & Pagay, V. (2018). Objective assessment of dried sultana grape quality using digital image analysis. Australian Journal of Grape and Wine Research, 24(2), 234-240.
2017 Pagay, V., & Collins, C. (2017). Effects of timing and intensity of elevated temperatures on reproductive development of field-grown Shiraz grapevines. Oeno One, 51(4), 409-421.
2017 Caravia, L., Pagay, V., Collins, C., & Tyerman, S. (2017). Application of sprinkler cooling within the bunch zone during ripening of Cabernet Sauvignon berries to reduce the impact of high temperature. Australian Journal of Grape and Wine Research, 23(1), 48-57.
DOI Scopus1 WoS1
2016 Wu, Q., Habili, N., & Pagay, V. (2016). Virus-associated Shiraz Disease may lead Shiraz to become an endangered variety in Australia.. Wine and Viticulture Journal, Jan/Feb, 47-50. 2016 Pagay, V., Zufferey, V., & Lakso, A. N. (2016). The influence of water stress on grapevine (Vitis Vinifera L.) shoots in a cool, humid climate: growth, gas exchange and hydraulics. Functional Plant Biology: an international journal of plant function, 43(9), 827-837.
DOI Scopus9 WoS7
2016 Pagay, V. (2016). Effects of irrigation regime on canopy water use and dry matter production of ‘Tempranillo’ grapevines in the semi-arid climate of Southern Oregon, USA. Agricultural Water Management, 178, 271-280.
DOI Scopus3 WoS2
2015 Cole, J., & Pagay, V. (2015). Usefulness of early morning stem water potential as a sensitive indicator of water status of deficit-irrigated grapevines (Vitis vinifera L.). Scientia Horticulturae, 191, 10-14.
DOI Scopus8 WoS6
2015 Kim, B., Pagay, V., Cho, K., Na, Y., Yun, B., Choi, K., . . . Choi, H. (2015). Effect of oil cake application on soil and leaf nutrition and on fruit yields in non-astringent persimmon (Diospyros × kaki thunb.) trees. Journal of Horticultural Science and Biotechnology, 90(2), 203-209.
DOI Scopus1 WoS1
2014 Pagay, V., Santiago, M., Sessoms, D., Huber, E., Vincent, O., Pharkya, A., . . . Stroock, A. (2014). A microtensiometer capable of measuring water potentials below -10 MPa. Lab on a Chip - Miniaturisation for chemistry, physics, biology, materials science and bioengineering, 14(15), 2806-2817.
DOI Scopus8 WoS7 Europe PMC1
2014 Stroock, A., Pagay, V., Zwieniecki, M., & Holbrook, N. (2014). The physicochemical hydrodynamics of vascular plants. Annual Review of Fluid Mechanics, 46(1), 615-642.
DOI Scopus57 WoS54
2013 Pagay, V., Reynolds, A. G., & Fisher, K. H. (2013). The influence of bird netting on yield and fruit, juice, and wine composition of vitis vinifera L.. Journal International des Sciences de la Vigne et du Vin, 47(1), 35-45. 2013 Santiago, M., Pagay, V., & Stroock, A. (2013). Impact of electroviscosity on the hydraulic conductance of the bordered pit membrane: a theoretical investigation. Plant Physiology, 163(2), 999-1011.
DOI Scopus17 WoS18 Europe PMC10
2010 Pagay, V., & Cheng, L. (2010). Variability in berry maturation of concord and Cabernet franc in a cool climate. American Journal of Enology and Viticulture, 61(1), 61-67.
2009 Pagay, V., & Cheng, L. (2009). Variability Management in Grapes Using Plant Growth Regulators. AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE, 60(3), 405A. 2008 Pagay, V., & Cheng, L. (2008). Enhancing and synchronizing grape berry ripening. AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE, 59(1), 112A. 2007 Kilmartin, P., Reynolds, A., Pagay, V., Nurgel, C., & Johnson, R. (2007). Polyphenol content and browning of Canadian icewines. Journal of Food, Agriculture and Environment, 5(3-4), 52-57.
2007 Huber, L., Eisenbeis, G., Rühl, E., Pagay, V., & Kirchmair, M. (2007). Distribution and host range of the grapevine plasmodiophorid Sorosphaera viticola. Vitis - Journal of Grapevine Research, 46(1), 23-25.
Year Citation 2017 Dayer, S., Tyerman, S., Garnett, T., & Pagay, V. (2017). Relationship between hydraulic and stomatal conductance and its regulation by root and leaf aquaporins under progressive water stress and recovery and exogenous application of ABA in Vitis vinifera L. ‘Syrah’. In Acta Horticulturae Vol. 1188 (pp. 227-234).
Year Citation 2012 Pagay, V., Zufferey, V., & Lakso, A. N. (2012). Testing the Theory of Hydraulic Autonomy of Grapevine Shoots under Water Stress. Poster session presented at the meeting of AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE. AMER SOC ENOLOGY VITICULTURE.
VITICULT 2500WT - Viticultural Science II
OENOLOGY 3530WT - Engineering for Viticulture and Oenology
Current Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2018 Co-Supervisor To Study "The role of Hydrogen Peroxide (H2O2) and GABA (Gamma amino butyric acid) in cell death and berry shrivel under drought stress in grape berry development" Doctor of Philosophy Doctorate Full Time Mrs Chethana Gowder Shekharappa 2018 Principal Supervisor Understanding Spatiotemporal Patterns of Fruit Composition in Cabernet Sauvignon Vineyards in Central California Doctor of Philosophy Doctorate Full Time Mr Brent Shipley Sams 2018 Co-Supervisor Smoke Taint Amelioration Doctor of Philosophy Doctorate Full Time Ms Colleen Szeto 2018 Co-Supervisor Managing Berry Heterogeneity Doctor of Philosophy Doctorate Full Time Miss Claire Elizabeth Jane Armstrong
Past Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2016 - 2017 Co-Supervisor Pre-breeding of an Indigenous Crop in Australia, Kunzea pomifera (muntries): Horticultural Production and Genetic Diversity Doctor of Philosophy Doctorate Full Time Dr Chi Mai Do
Date Role Membership Country 2015 - ongoing Member Australian Society of Viticulture and Oenology Australia 2015 - ongoing Member Australian Society of Horticultural Science Australia 2014 - ongoing Member American Society of Horticultural Science Australia 2012 - ongoing Member International Society of Horticultural Science Australia 2009 - ongoing Member American Society of Enology and Viticulture Australia
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