School of Agriculture, Food and Wine
Faculty of Sciences, Engineering and Technology
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.
- Inter- and intra-vine abiotic stress signalling in grapevine
- 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
Advanced Sensing Technologies in Vineyards:
- Detection of biotic and abiotic stresses in grapevines using proximal and remote sensing techniques
- Continuous in situ measurements of crop water status
Date Position Institution name 2015 - ongoing 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 2023 Armstrong, C. E. J., Niimi, J., Boss, P. K., Pagay, V., & Jeffery, D. W. (2023). Use of Machine Learning with Fused Spectral Data for Prediction of Product Sensory Characteristics: The Case of Grape to Wine. Foods, 12(4), 757.
DOI Scopus1 WoS1
2023 Schlank, R., Kidman, C. M., Gautam, D., Jeffery, D. W., & Pagay, V. (2023). Data-driven irrigation scheduling increases the crop water use efficiency of Cabernet Sauvignon grapevines. Irrigation Science, 16 pages.
2023 Midzi, J., Jeffery, D. W., Baumann, U., Capone, D. L., Rogiers, S. Y., & Pagay, V. (2023). Evidence of Bi-Directional Volatile-Mediated Communication between Drought-Stressed and Well-Watered Grapevines (Vitis vinifera L.). Agronomy, 13(7), 1747.
2023 Wang, Y. M., Ostendorf, B., & Pagay, V. (2023). Detecting Grapevine Virus Infections in Red and White Winegrape Canopies Using Proximal Hyperspectral Sensing. Sensors, 23(5), 17 pages.
2023 Armstrong, C. E. J., Previtali, P., Boss, P. K., Pagay, V., Bramley, R. G. V., & Jeffery, D. W. (2023). Grape Heterogeneity Index: Assessment of Overall Grape Heterogeneity Using an Aggregation of Multiple Indicators. Plants, 12(7), 1442.
2023 Wang, Y. M., Ostendorf, B., & Pagay, V. (2023). Evaluating the Potential of High-Resolution Visible Remote Sensing to Detect Shiraz Disease in Grapevines. Australian Journal of Grape and Wine Research, 2023, 9 pages.
2023 Armstrong, C. E. J., Gilmore, A. M., Boss, P. K., Pagay, V., & Jeffery, D. W. (2023). Machine learning for classifying and predicting grape maturity indices using absorbance and fluorescence spectra. Food Chemistry, 403, 1-10.
DOI Scopus7 WoS6 Europe PMC4
2023 Xiao, Z., Tyerman, S. D., Stait-Gardner, T., Price, W. S., Pagay, V., Schmidtke, L. M., & Rogiers, S. Y. (2023). Characterisation of internal oxygen concentration of strawberry (Fragaria × ananassa) and blueberry (Vaccinium corymbosum). Functional Plant Biology, 50(3), 256-265.
2022 Nagahatenna, D. S. K., Furlan, T. S., Edwards, E. J., Ramesh, S. A., & Pagay, V. (2022). Insights into Long-Term Acclimation Strategies of Grapevines (Vitis vinifera L.) in Response to Multi-Decadal Cyclical Drought. Agronomy, 12(12), 19 pages.
2022 Armstrong, C. E. J., Gilmore, A. M., Boss, P. K., Pagay, V., & Jeffery, D. W. (2022). Corrigendum to "Machine learning for classifying and predicting grape maturity indices using absorbance and fluorescence spectra" [Food Chemistry 403 (2023) 134321].. Food Chem, 406, 135055.
2022 Sams, B., Bramley, R. G. V., Sanchez, L., Dokoozlian, N. K., Ford, C. M., & Pagay, V. (2022). Characterising spatio‐temporal variation in fruit composition for improved winegrowing management in California Cabernet Sauvignon. Australian Journal of Grape and Wine Research, 28(3), 407-423.
DOI Scopus4 WoS3
2022 Sams, B., Bramley, R. G. V., Sanchez, L., Dokoozlian, N., Ford, C., & Pagay, V. (2022). Remote Sensing, Yield, Physical Characteristics, and Fruit Composition Variability in Cabernet Sauvignon Vineyards. American Journal of Enology and Viticulture, 73(2), 93-105.
DOI Scopus7 WoS4
2022 Wang, Y. M., Ostendorf, B., Gautam, D., Habili, N., & Pagay, V. (2022). Plant Viral Disease Detection: From Molecular Diagnosis to Optical Sensing Technology—A Multidisciplinary Review. Remote Sensing, 14(7), 1-24.
DOI Scopus14 WoS12
2022 Sams, B., Bramley, R. G. V., Aboutalebi, M., Sanchez, L., Dokoozlian, N. K., Ford, C. M., & Pagay, V. (2022). Facilitating mapping and understanding of within‐vineyard variation in fruit composition using data pooled from multiple vineyards. Australian Journal of Grape and Wine Research, 28(4), 522-533.
2022 Pagay, V., Furlan, T. S., Kidman, C. M., & Nagahatenna, D. (2022). Long-term drought adaptation of unirrigated grapevines (Vitis vinifera L.). Theoretical and Experimental Plant Physiology, 34(2), 215-225.
DOI Scopus8 WoS8
2022 Cogato, A., Jewan, S. Y. Y., Wu, L., Marinello, F., Meggio, F., Sivilotti, P., . . . Pagay, V. (2022). Water Stress Impacts on Grapevines (Vitis vinifera L.) in Hot Environments: Physiological and Spectral Responses. AGRONOMY-BASEL, 12(8), 19 pages.
DOI Scopus4 WoS3
2022 Midzi, J., Jeffery, D. W., Baumann, U., Rogiers, S., Tyerman, S. D., & Pagay, V. (2022). Stress-Induced Volatile Emissions and Signalling in Inter-Plant Communication. Plants, 11(19), 1-30.
DOI Scopus11 WoS8 Europe PMC4
2022 Jewan, S. Y. Y., Pagay, V., Billa, L., Tyerman, S. D., Gautam, D., Sparkes, D., . . . Singh, A. (2022). The feasibility of using a low-cost near-infrared, sensitive, consumer-grade digital camera mounted on a commercial UAV to assess Bambara groundnut yield. International Journal of Remote Sensing, 43(2), 393-423.
DOI Scopus8 WoS7
2021 Cogato, A., Wu, L., Jewan, S. Y. Y., Meggio, F., Marinello, F., Sozzi, M., & Pagay, V. (2021). Evaluating the Spectral and Physiological Responses of Grapevines (Vitis vinifera L.) to Heat and Water Stresses under Different Vineyard Cooling and Irrigation Strategies. Agronomy, 11(10), 1-20.
DOI Scopus19 WoS18
2021 Pagay, V. (2021). Evaluating a novel microtensiometer for continuous trunk water potential measurements in field-grown irrigated grapevines. Irrigation Science, 40(1), 10 pages.
DOI Scopus8 WoS8
2021 Armstrong, C. E. J., Ristic, R., Boss, P. K., Pagay, V., & Jeffery, D. W. (2021). Effect of grape heterogeneity on wine chemical composition and sensory attributes for Vitis vinifera cv. Cabernet Sauvignon. Australian Journal of Grape and Wine Research, 27(2), 206-218.
DOI Scopus8 WoS7
2021 Xiao, Z., Stait‐Gardner, T., Willis, S. A., Price, W. S., Moroni, F. J., Pagay, V., . . . Rogiers, S. Y. (2021). 3D visualisation of voids in grapevine flowers and berries using X‐ray micro computed tomography. Australian Journal of Grape and Wine Research, 27(2), 141-148.
DOI Scopus5 WoS3
2021 Xiao, Z., Chin, S., White, R. G., Gourieroux, A. M., Pagay, V., Tyerman, S. D., . . . Rogiers, S. Y. (2021). Vascular connections into the grape berry: the link of structural investment to seededness. Frontiers in Plant Science, 12, 1-14.
DOI Scopus1 WoS1
2021 Knowling, M. J., Bennett, B., Ostendorf, B., Westra, S., Walker, R. R., Pellegrino, A., . . . Grigg, D. (2021). Bridging the gap between data and decisions: A review of process-based models for viticulture. Agricultural Systems, 193, 1-13.
DOI Scopus12 WoS13
2021 Gautam, D., Ostendorf, B., & Pagay, V. (2021). Estimation of grapevine crop coefficient using a multispectral camera on an unmanned aerial vehicle. Remote Sensing, 13(13), 1-16.
DOI Scopus12 WoS11
2020 Gautam, D., & Pagay, V. (2020). A review of current and potential applications of remote sensing to study the water status of horticultural crops. Agronomy, 10(1), 140-1-140-35.
DOI Scopus31 WoS25
2020 Dayer, S., Scharwies, J. D., Ramesh, S. A., Sullivan, W., Doerflinger, F. C., Pagay, V., & Tyerman, S. D. (2020). Comparing hydraulics between two grapevine cultivars reveals differences in stomatal regulation under water stress and exogenous ABA applications. Frontiers in Plant Science, 11, 1-14.
DOI Scopus22 WoS19 Europe PMC6
2020 Wu, Q., Habili, N., Constable, F., Al Rwahnih, M. A., Goszczynski, D. E., Wang, Y., & Pagay, V. (2020). Virus Pathogens in Australian Vineyards with an Emphasis on Shiraz Disease.. Viruses, 12(8), 1-21.
DOI Scopus14 WoS12 Europe PMC6
2020 Szeto, C., Ristic, R., Capone, D., Puglisi, C., Pagay, V., Culbert, J., . . . Wilkinson, K. (2020). Uptake and glycosylation of smoke-derived volatile phenols by Cabernet Sauvignon grapes and their subsequent fate during winemaking. Molecules, 25(16), 1-17.
DOI Scopus27 WoS29 Europe PMC17
2019 Pagay, V., & Kidman, C. M. (2019). Evaluating Remotely-Sensed Grapevine (Vitis vinifera L.) Water Stress Responses across a Viticultural Region. Agronomy, 9(11), 17 pages.
DOI Scopus15 WoS12
2019 Cogato, A., Pagay, V., Marinello, F., Meggio, F., Grace, P., & Migliorati, M. D. A. (2019). Assessing the feasibility of using sentinel-2 imagery to quantify the impact of heatwaves on irrigated vineyards. Remote Sensing, 11(23), 19 pages.
DOI Scopus26 WoS24
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.
DOI Scopus5 WoS4
2018 Do, C., Delaporte, K., Pagay, V., & Schultz, C. (2018). Salinity tolerance of muntries (Kunzea pomifera F. muell.), a native food crop in Australia. HortScience, 53(11), 1562-1569.
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.
DOI Scopus1 WoS2
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 Scopus23 WoS19
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 Scopus24 WoS22 Europe PMC2
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 Scopus9 WoS8
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 Scopus20 WoS16
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 Scopus3 WoS3
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 Scopus41 WoS39 Europe PMC5
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 Scopus151 WoS147
2013 Pagay, V., Reynolds, A., & Fisher, K. (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 Scopus37 WoS33 Europe PMC14
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. A., Reynolds, A. G., 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. H., 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 2022 Cogato, A., Sozzi, M., Meggio, F., Marinello, F., Jewan, S. Y. Y., & Pagay, V. (2022). Evaluation of the physiological and spectral responses of grapevines (Vitis vinifera L.) under different durations of drought stress under high temperature conditions. In 2022 IEEE Workshop on Metrology for Agriculture and Forestry, MetroAgriFor 2022 - Proceedings (pp. 368-372). Perugia, Italy: IEEE.
2020 Armstrong, C., Previtali, P., Pagay, V., Boss, P., & Jeffery, D. (2020). Regulated deficit irrigation and crop load interaction effects on grape heterogeneity. In Proceedings of the XIIIth International Terroir Congress, as published in IVES Conference Series (pp. 1-5). Villenave d'Ornon, France: International Viticulture & Enology Society. 2019 Sams, B., Bramley, R., Pagay, V., Sanchez, L., Ford, C., & Dokoozlian, N. (2019). Can mapping of within-vineyard variability be facilitated using data from multiple vineyards?. In Precision Agriculture 2019 - Papers Presented at the 12th European Conference on Precision Agriculture, ECPA 2019 (pp. 743-749). Netherlands: Wageningen Academic Publishers.
2017 Dayer, S., Tyerman, S. D., 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 1188 Vol. 1188 (pp. 227-234). online: ISHS.
DOI Scopus4 WoS4
Year Citation 2021 Knowling, M., Westra, S., Bennett, B., Ostendorf, B., Walker, R., Pellegrino, A., . . . Pagay, V. (2021). The ‘cause and effect’ of water decisions: Generalizing water production functions for viticulture through biophysical simulation. Poster session presented at the meeting of 24th International Conference on Modelling and Simulation. Sydney, Australia: Modelling and Simulation Society of Australia and New Zealand Inc. 2021 Knowling, M., White, J. T., Collins, C., Grigg, D., Westra, S., Ostendorf, B., . . . Pagay, V. (2021). Real-time ensemble assimilation of image-based canopy data into a process-based model for improved vineyard forecasting, situational awareness and decision-making. Poster session presented at the meeting of https://www.mssanz.org.au/modsim2021/documents/MODSIM2021_BookofAbstracts.pdf. Sydney, Australia. 2018 Bennett, B., Westra, S., Cavagnaro, T., Wheeler, S., Shi, Q., & Pagay, V. (2018). Unpacking Agricultural System Complexities for Improved Outcomes: Taking Advantage of Emerging Data, Technologies and Analysis. Poster session presented at the meeting of AGU Fall Meeting. 2018 Habili, N., Wu, Q., Al Rwahnih, M., & Pagay, V. (2018). Group II variants of Grapevine virus A are associated with Shiraz Disease in Australia.. Poster session presented at the meeting of 19th International Council for the Study of Virus and Virus-like Diseases of the Grapevine (ICVG). 2018 Pagay, V., Habili, N., Wu, Q., & Coleman, D. (2018). Rapid and non-destructive detection of Shiraz disease and grapevine leafroll disease on asymptomatic grapevines in Australian vineyards.. Poster session presented at the meeting of 19th International Council for the Study of Virus and Virus-like Diseases of the Grapevine (ICVG). 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 2023 Principal Supervisor Characterising Physiological and Biochemical Traits in Shiraz Grapevines of Varying Vine Age in Barossa Valley Geographical Indication Doctor of Philosophy Doctorate Full Time Ms Grace Puspita Prayogo 2022 Co-Supervisor Characterisation and Optimisation of Pyroligneous Acid Properties for Agricultural Applications Doctor of Philosophy Doctorate Full Time Mr Duc Huy Hung Nguyen 2022 Co-Supervisor Development of biochar-based nutrient recycling technology for enhancing nutrient retention and grapevine productivity in vineyard soils Doctor of Philosophy Doctorate Full Time Miss Yijia He 2021 Principal Supervisor Evaluating the influence of different irrigation scheduling strategies in warm climate Cabernet Sauvignon grapevine, considering water use efficiency (WUE), yield, fruit quality and specific profitability indicators. Doctor of Philosophy Doctorate Full Time Miss Rochelle Schlank 2019 Principal Supervisor Unmanned Aerial Systems-Based Remote Sensing for Monitoring Growth and Development of Underutilized Crops Doctor of Philosophy under a Jointly-awarded Degree Agreement with Doctorate Full Time Mr Shaikh Yassir Yousouf Jewan 2019 Co-Supervisor Molecular and Physiological Events that Underlie Cell Death in the Grape Berry Doctor of Philosophy Doctorate Full Time Miss Lishi Cai 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 2020 - 2023 Principal Supervisor Inter-vine Signalling via Plant Volatiles Doctor of Philosophy Doctorate Full Time Miss Joanah Midzi 2020 - 2022 Co-Supervisor Cover Crops, Carbon Dynamics and the Ecological Intensification of Vineyards – A View From Under the Vine Doctor of Philosophy Doctorate Full Time Mr Joseph Nicholas John Marks 2019 - 2023 Principal Supervisor Detection of grapevine viral diseases in Australian vineyards using remote sensing and hyperspectral technology Doctor of Philosophy Doctorate Full Time Mr Yeniu Wang 2018 - 2022 Co-Supervisor Evaluating Diagnostics and Mitigation of Smoke Exposure in Grapes and Wine Doctor of Philosophy Doctorate Full Time Ms Colleen Szeto 2018 - 2022 Principal Supervisor Understanding Spatiotemporal Patterns of Chemical Attributes in ‘Vitis vinifera’ L. cv. Cabernet Sauvignon Vineyards in Central California as a Basis for Predicting Fruit Composition Doctor of Philosophy Doctorate Full Time Mr Brent Shipley Sams 2018 - 2023 Co-Supervisor The Role of Gamma-aminobutyric acid and Hydrogen peroxide in Cell Death in Grape Berry Development Doctor of Philosophy Doctorate Full Time Mrs Chethana Gowder Shekharappa 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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