Grapes could suffocate under drought and high temperatures

Zeyu Xiao, Siyang Liao, Victor Sadras, Suzy Rogiers, Stephen D. Tyerman

Research output: Other contribution to conferencePoster

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Abstract

Global temperatures and the frequencies of heatwaves and drought events are increasing due to climate change. This challenges the wine industry, since
temperature and water are important factors affecting the growth and physiology of grapevines. Particularly, berry ripening under stressful conditions could
result in substantial loss of mass due to cell death within the berry and shrivel, which may negatively affect grape quality and lead to higher alcohol wines.
We hypothesised that high temperatures may lead to oxygen deficiency (hypoxia) within grape berries due to the greater demand for oxygen by respiration,
and also reduced oxygen diffusion within the berry due to water stress.
Original languageEnglish
Publication statusPublished - 2019
Event17th Australian Wine Industry Technical Conference (AWITC 2019) - Adelaide Convention Centre, Adelaide, Australia
Duration: 21 Jul 201924 Jul 2019
https://awitc.com.au

Conference

Conference17th Australian Wine Industry Technical Conference (AWITC 2019)
CountryAustralia
CityAdelaide
Period21/07/1924/07/19
Internet address

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small fruits
grapes
drought
hypoxia
oxygen
wine industry
temperature
growth factors
breathing
wines
cell death
ripening
water stress
alcohols
physiology
climate change
water

Cite this

Xiao, Z., Liao, S., Sadras, V., Rogiers, S., & Tyerman, S. D. (2019). Grapes could suffocate under drought and high temperatures. Poster session presented at 17th Australian Wine Industry Technical Conference (AWITC 2019), Adelaide, Australia.
Xiao, Zeyu ; Liao, Siyang ; Sadras, Victor ; Rogiers, Suzy ; Tyerman, Stephen D. / Grapes could suffocate under drought and high temperatures. Poster session presented at 17th Australian Wine Industry Technical Conference (AWITC 2019), Adelaide, Australia.
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Xiao, Z, Liao, S, Sadras, V, Rogiers, S & Tyerman, SD 2019, 'Grapes could suffocate under drought and high temperatures', 17th Australian Wine Industry Technical Conference (AWITC 2019), Adelaide, Australia, 21/07/19 - 24/07/19.

Grapes could suffocate under drought and high temperatures. / Xiao, Zeyu; Liao, Siyang; Sadras, Victor ; Rogiers, Suzy; Tyerman, Stephen D.

2019. Poster session presented at 17th Australian Wine Industry Technical Conference (AWITC 2019), Adelaide, Australia.

Research output: Other contribution to conferencePoster

TY - CONF

T1 - Grapes could suffocate under drought and high temperatures

AU - Xiao, Zeyu

AU - Liao, Siyang

AU - Sadras, Victor

AU - Rogiers, Suzy

AU - Tyerman, Stephen D.

PY - 2019

Y1 - 2019

N2 - Global temperatures and the frequencies of heatwaves and drought events are increasing due to climate change. This challenges the wine industry, sincetemperature and water are important factors affecting the growth and physiology of grapevines. Particularly, berry ripening under stressful conditions couldresult in substantial loss of mass due to cell death within the berry and shrivel, which may negatively affect grape quality and lead to higher alcohol wines.We hypothesised that high temperatures may lead to oxygen deficiency (hypoxia) within grape berries due to the greater demand for oxygen by respiration,and also reduced oxygen diffusion within the berry due to water stress.

AB - Global temperatures and the frequencies of heatwaves and drought events are increasing due to climate change. This challenges the wine industry, sincetemperature and water are important factors affecting the growth and physiology of grapevines. Particularly, berry ripening under stressful conditions couldresult in substantial loss of mass due to cell death within the berry and shrivel, which may negatively affect grape quality and lead to higher alcohol wines.We hypothesised that high temperatures may lead to oxygen deficiency (hypoxia) within grape berries due to the greater demand for oxygen by respiration,and also reduced oxygen diffusion within the berry due to water stress.

KW - drought

KW - high temperature

KW - oxygen concentrations

KW - grapes

M3 - Poster

ER -

Xiao Z, Liao S, Sadras V, Rogiers S, Tyerman SD. Grapes could suffocate under drought and high temperatures. 2019. Poster session presented at 17th Australian Wine Industry Technical Conference (AWITC 2019), Adelaide, Australia.