Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation.

Research output: Other contribution to conferencePoster

Abstract

Vine balance, from a mechanistic perspective, can be considered as a source-sink relationship, i.e. the relationship between carbohydrate supply (via canopy photosynthesis) and the carbohydrate requirement of the developing fruit. Manipulating vine balance potentially affects the availability of carbohydrates to support berry development. However, when photosynthetic capacity is manipulated through canopy architecture or management practices, bunch exposure can also be affected. Identifying which factor has the greater influence on berry composition is therefore difficult under field conditions. To specifically manipulate whole vine carbohydrate availability, and in turn provide control over the rate of berry sugar accumulation, an experimental approach was developed to reduce photosynthesis by supplying whole vines with air at CO2 concentrations below ambient levels. This poster reports on the design and testing of this system,and the results of the first experiment which examined the impact of low post-verais on carbohydrate supply on berry sugar accumulation and composition.
Original languageEnglish
Publication statusPublished - 2016
Event16th Australian Wine Industry Technical Conference (AWITC 2016) - Adelaide Convention Centre, Adelaide, Australia
Duration: 24 Jul 201628 Jul 2016
https://awitc.com.au/program/proceedings/sixteenth/ (Proceedings)

Conference

Conference16th Australian Wine Industry Technical Conference (AWITC 2016)
CountryAustralia
CityAdelaide
Period24/07/1628/07/16
OtherThe 16th Australian Wine Industry Technical Conference and Trade Exhibition was conducted from 24-28 July 2016 at the Adelaide Convention Centre. Attendee numbers were the highest (>1,100) since the 2007 Conference in Adelaide, with the overwhelmingly positive feedback received to date indicating that all found the event to be a great success.
Internet address

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vines
small fruits
carbohydrates
sugars
photosynthesis
canopy
source-sink relationships
carbon dioxide
air
fruits
testing

Cite this

Smith, J., Edwards, E., Gouot, J., Barril, C., Walker, A., & Holzapfel, B. (2016). Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation.. Poster session presented at 16th Australian Wine Industry Technical Conference (AWITC 2016), Adelaide, Australia.
Smith, Jason ; Edwards, E ; Gouot, Julia ; Barril, Celia ; Walker, A ; Holzapfel, Bruno. / Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation. Poster session presented at 16th Australian Wine Industry Technical Conference (AWITC 2016), Adelaide, Australia.
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abstract = "Vine balance, from a mechanistic perspective, can be considered as a source-sink relationship, i.e. the relationship between carbohydrate supply (via canopy photosynthesis) and the carbohydrate requirement of the developing fruit. Manipulating vine balance potentially affects the availability of carbohydrates to support berry development. However, when photosynthetic capacity is manipulated through canopy architecture or management practices, bunch exposure can also be affected. Identifying which factor has the greater influence on berry composition is therefore difficult under field conditions. To specifically manipulate whole vine carbohydrate availability, and in turn provide control over the rate of berry sugar accumulation, an experimental approach was developed to reduce photosynthesis by supplying whole vines with air at CO2 concentrations below ambient levels. This poster reports on the design and testing of this system,and the results of the first experiment which examined the impact of low post-verais on carbohydrate supply on berry sugar accumulation and composition.",
keywords = "vine balance",
author = "Jason Smith and E Edwards and Julia Gouot and Celia Barril and A Walker and Bruno Holzapfel",
year = "2016",
language = "English",
note = "16th Australian Wine Industry Technical Conference (AWITC 2016) ; Conference date: 24-07-2016 Through 28-07-2016",
url = "https://awitc.com.au/program/proceedings/sixteenth/",

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Smith, J, Edwards, E, Gouot, J, Barril, C, Walker, A & Holzapfel, B 2016, 'Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation.' 16th Australian Wine Industry Technical Conference (AWITC 2016), Adelaide, Australia, 24/07/16 - 28/07/16, .

Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation. / Smith, Jason; Edwards, E; Gouot, Julia; Barril, Celia; Walker, A; Holzapfel, Bruno.

2016. Poster session presented at 16th Australian Wine Industry Technical Conference (AWITC 2016), Adelaide, Australia.

Research output: Other contribution to conferencePoster

TY - CONF

T1 - Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation.

AU - Smith, Jason

AU - Edwards, E

AU - Gouot, Julia

AU - Barril, Celia

AU - Walker, A

AU - Holzapfel, Bruno

PY - 2016

Y1 - 2016

N2 - Vine balance, from a mechanistic perspective, can be considered as a source-sink relationship, i.e. the relationship between carbohydrate supply (via canopy photosynthesis) and the carbohydrate requirement of the developing fruit. Manipulating vine balance potentially affects the availability of carbohydrates to support berry development. However, when photosynthetic capacity is manipulated through canopy architecture or management practices, bunch exposure can also be affected. Identifying which factor has the greater influence on berry composition is therefore difficult under field conditions. To specifically manipulate whole vine carbohydrate availability, and in turn provide control over the rate of berry sugar accumulation, an experimental approach was developed to reduce photosynthesis by supplying whole vines with air at CO2 concentrations below ambient levels. This poster reports on the design and testing of this system,and the results of the first experiment which examined the impact of low post-verais on carbohydrate supply on berry sugar accumulation and composition.

AB - Vine balance, from a mechanistic perspective, can be considered as a source-sink relationship, i.e. the relationship between carbohydrate supply (via canopy photosynthesis) and the carbohydrate requirement of the developing fruit. Manipulating vine balance potentially affects the availability of carbohydrates to support berry development. However, when photosynthetic capacity is manipulated through canopy architecture or management practices, bunch exposure can also be affected. Identifying which factor has the greater influence on berry composition is therefore difficult under field conditions. To specifically manipulate whole vine carbohydrate availability, and in turn provide control over the rate of berry sugar accumulation, an experimental approach was developed to reduce photosynthesis by supplying whole vines with air at CO2 concentrations below ambient levels. This poster reports on the design and testing of this system,and the results of the first experiment which examined the impact of low post-verais on carbohydrate supply on berry sugar accumulation and composition.

KW - vine balance

M3 - Poster

ER -

Smith J, Edwards E, Gouot J, Barril C, Walker A, Holzapfel B. Targeted manipulation of vine balance 2. A whole-vine chamber system for controlling berry sugar accumulation.. 2016. Poster session presented at 16th Australian Wine Industry Technical Conference (AWITC 2016), Adelaide, Australia.