Dr Dennis Greer completed his PhD at the University of Otago in 1979 and commenced a research career in horticulture at the Horticulture and Food Research Institute and carried much research at the National Climate Laboratory. Whilst there, Dr Greer had a Visiting Investigator grant at the Department of Plant Biology, Carnegie Institute of Washington in Palo Alto California in 1984 and was also awarded an OECD Scholarship in Photosynthesis in 1989 to work at the Department of Plant Physiology, University of Umea, Umea Sweden.
In 2002, Dr Greer was appointed to the School of Wine and Food Sciences, Charles Sturt University to teach viticulture and wine science students and in 2005 was involved in the successful 'Winegrowing Futures' grant to the National Wine and Grape Industry Centre (2006-2011).
In 2012, Dr Greer went on Special Studies leave to the Department of Speciality Crops, University of Hohenheim in Stuttgart, Germany and spent 5 months there researching the effects of nitrogen and source-sink effects on the photosynthetic processes of apple tree leaves.
Specialisation: Grapevine physiology
Focus Area: Abiotic stresses, berry ripening, vine carbon balance
High light intensities and high temperatures can interact to influence vine performance and berry ripening as well as reduce the acquisition of carbon through photosynthesis impairment. Research has been conducted with covering vines with shade cloth or spraying with water to control leaf temperature and as methods to investigate how extreme light and temperature conditions impact on the mechanisms of supply and demand between vegetative and reproductive growth. The use of controlled environment conditions are an essential tool to uncouple temperature and light effects on vine and investigate the mechanisms underpinning growth and development of vines and berries.
Greer DH, Sicard SM (2009). The net carbon balance in relation to growth and biomass accumulation of grapevines (Vitis vinifera cv. Semillon) grown in a controlled environment. Functional Plant Biology 36, 645-653.
Greer DH, Weston C (2010). Heat stress affects flowering, berry growth, sugar accumulation and photosynthesis in Vitis vinifera cv. Semillon grapevines grown in a controlled environment. Functional Plant Biology 37, 206-214.
Greer DH, Weston C (2010) Effects of fruiting on vegetative growth and development dynamics of grapevines (Vitis vinifera L. cv. Semillon) can be traced back to events at or before budbreak. Functional Plant Biology 37, 756-766.
Greer DH, Weston C, Weedon M (2010) Shoot architecture, growth and development dynamics of Vitis vinifera cv. Semillon vines grown in an irrigated vineyard with and without shade covering. Functional Plant Biology 37, 1061-1070.
Greer DH, Weedon MM, Weston C. (2011) Reductions in biomass assimilation, photosynthesis in situ, and the net carbon balance are the costs of protecting Vitis vinifera cv. Semillon grapevines from heat stress with shade cloth. AoB Plants doi: 10.1023/aobpla/plr023.
Greer DH, Weedon MM (2012). Interactions between light and growing season temperatures on growth and development and gas exchange of Semillon (Vitis vinifera L.) vines grown in an irrigated vineyard. Plant Physiology and Biochemistry 54, 59-69.
Greer DH, (2012) Modelling leaf photosynthesis and transpiration temperature-dependent responses in Vitis vinifera cv. Semillon grapevines growing in hot, irrigated vineyard conditions. AoB Plants 2012 doi: 10.1093/aobpla/pls009.
Greer DH, Weedon MM (2012) Modelling photosynthetic responses to temperature of grapevine (Vitis vinifera cv. Semillon) leaves on vines grown in a hot climate. Plant, Cell & Environment 35, 1050-1064.
Greer DH, Weedon MM (2013). The impact of high temperatures on Vitis vinifera cv. Semillon grapevine performance and berry ripening. Frontiers in Plant Science 4, article 491. doi10.3389/fpls.2013.00491
Greer DH, Weedon MM (2014). Does the hydrocooling of Vitis vinifera cv. Semillon vines protect the vegetative and reproductive growth processes and vine performance against high temperatures? Functional Plant Biology 41, 620-633