The Australian Wine Research Institute

The August 2020 issue of Technical Review is now available online. Articles and abstracts can be viewed individually, or the full issue can be downloaded. The online format of Technical Review allows you to browse the list of the latest articles on grape and wine production by keyword, view article summaries and order journal articles from the AWRI Library.

For copyright reasons, access to abstracts is available only to Australian winemakers and grapegrowers who pay the Wine Grapes or Grape Research levies. The technical notes authored by the AWRI are, however, freely available. If you have forgotten your password for the AWRI website, please use the forgotten password link to reset your password.

Below is a snapshot of what's in this issue:

AWRI Technical Notes	Sustainable Winegrowing Australia – how is the program supporting producers to improve and demonstrate their sustainability?
AWRI publications	Enhancing tropical fruit flavour in Chardonnay and Shiraz through foliar nutrient sprays Inspirations from the past and opportunities for the future. Part 1: cross-flow filtration and flotation Inspirations from the past and opportunities for the future. Part 2: in-tank fermentation monitoring and continuous processes Ask the AWRI: pre-fermentation skin contact Going green with whole bunches Alterations in yeast species composition of uninoculated wine ferments by the addition of sulphur dioxide
Current literature – oenology	Chemical and sensory effects of cofermentation and post-malolactic fermentation blending of Syrah with Rhône white cultivars Press fractioning of grape juice: a first step to manage potential atypical aging development during winemaking The effects of enzyme and tannin applications on red wine Reduction of sulfur compounds through genetic improvement of native Saccharomyces cerevisiae useful for organic and sulfite-free wine Novel microencapsulated yeast for the production of sparkling wine by traditional method May peppery wines be the spice of life? A review of research on the ‘pepper’ aroma and the sesquiterpenoid rotundone Predicting the post-bottling sulfite concentration evolution and wine shelf-life Smoke signals
Current literature – viticulture	A vision-based robust grape berry counting algorithm for fast calibration-free bunch weight estimation in the field Development and evaluation of a vineyard-based strategy to mitigate smoke-taint in wine grapes Automatic flower number evaluation in grapevine inflorescences using RGB images Soil temperature prior to veraison alters grapevine carbon partitioning, xylem sap hormones, and fruit set Functional microbial diversity responses to biodynamic management in Burgundian vineyard soils Sixty years of hail suppression activities in Mendoza, Argentina: uncertainties, gaps in knowledge and future perspectives Reds, whites, and sulfites: examining different organic wine regulation practices in the United States and the European Union Early leaf removal as a strategy to improve ripening and lower cluster rot in cool climate (Vitis vinifera L.) Pinot Grigio Spatial variability in Ontario Riesling vineyards: I. Soil, vine water status and vine performance

Nominations are open for three levy payer director positions on the Board of The Australian Wine Research Institute Ltd (AWRI).

The AWRI Board of Directors includes six persons who are nominated and/or elected by wine grapes levy payers for a term of three years. In accordance with the Constitution of the AWRI, three of these positions become vacant on 31 December 2020, one in each of the defined small, medium and large categories.

This is an excellent opportunity for an interested candidate to become involved in the Australian wine industry’s own R&D organisation and, in addition to their other duties and responsibilities, provide a ‘coalface’ perspective to the direction and priorities of the AWRI’s research, development, adoption and commercialisation activities.

Current levy payers are invited to nominate suitably qualified candidates for the vacant positions. Nominations must be made in writing on the official nomination form which is available from the AWRI Election of Directors page. Eligible levy payers may propose or second one nomination only.

Nominations are to be received by post to The Returning Officer, The Australian Wine Research Institute Ltd, PO Box 197, Glen Osmond SA 5064 or by email to returningofficer@awri.com.au NO LATER THAN 5 PM FRIDAY 14 AUGUST 2020. If more than one nomination is received in each category, an election in that category will be conducted during August/September 2020.

Nominees are encouraged to prepare a profile/statement, including a picture, of not more than 250 words in support of their nomination, for use in the event that an election is required. The profile/statement must also be received by the AWRI Returning Officer by the nomination deadline of 14 August 2020.

More information is available in the nomination form regarding:

the definition of small, medium and large levy payers
the method of calculation of votes in an election
the clauses of the AWRI Constitution dealing with the appointment of directors by levy payers and their term of office.

A form can also be requested by contacting Shiralee Dodd, the Returning Officer, by email at returningofficer@awri.com.au.

15 July 2020 – Invitation to nominate levy payer directors to the AWRI Board

Nominations are now open for three levy payer director positions on the Board of The Australian Wine Research Institute Ltd (AWRI).

The AWRI Board of Directors includes six persons who are nominated and/or elected by wine grapes levy payers for a term of three years. In accordance with the Constitution of the AWRI, three of these positions become vacant on 31 December 2020, one in each of the defined small, medium and large categories.

This is an excellent opportunity for an interested candidate to become involved in the Australian wine industry’s own R&D organisation and, in addition to their other duties and responsibilities, provide a ‘coalface’ perspective to the direction and priorities of the AWRI’s research, development, adoption and commercialisation activities.

Current levy payers are invited to nominate suitably qualified candidates for the vacant positions. Nominations must be made in writing on the official nomination form which is available from the AWRI Election of Directors page. Eligible levy payers may propose or second one nomination only.

Nominations are to be received by post to The Returning Officer, The Australian Wine Research Institute Ltd, PO Box 197, Glen Osmond SA 5064 or by email to returningofficer@awri.com.au NO LATER THAN 5 PM FRIDAY 14 AUGUST 2020. If more than one nomination is received in each category, an election in that category will be conducted during August/September 2020.

Nominees are encouraged to prepare a profile/statement, including a picture, of not more than 250 words in support of their nomination, for use in the event that an election is required. The profile/statement must also be received by the AWRI Returning Officer by the nomination deadline of 14 August 2020.

More information is available in the nomination form regarding:

• the definition of small, medium and large levy payers
• the method of calculation of votes in an election
• the clauses of the AWRI Constitution dealing with the appointment of directors by levy payers and their term of office.

A form can also be requested by contacting Shiralee Dodd, the Returning Officer, by email at returningofficer@awri.com.au.

Starting Thursday, 9 July, Dr Richard Gawel from the AWRI takes a look at dissolved carbon dioxide and its impact on the taste, flavour, and textural properties of still white and red wines. The remaining five webinars will run through to mid-August and address glutathione additions, remediation options for smoke-affected juice or wine, under-vine cover cropping, an update from Sustainable Winegrowing Australia and self-driving tractors.

Each webinar will include a presentation and an opportunity for audience members to ask questions. Sessions are held on Thursdays at 11:30 am in SA, 12 noon in the eastern states and 10 am in WA.

All webinars are free to attend but do require pre-registration.

The next six webinars for the program are:

9 July 2020: How does dissolved carbon dioxide affect the taste and texture of still white and red wine? – Dr Richard Gawel (AWRI)

16 July 2020: The ins and outs of under-vine cover cropping – Prof. Tim Cavagnaro, Dr Thomas Lines and Chris Penfold (University of Adelaide)

23 July 2020: Tackling smoke taint head on: winery remediation options for smoke-affected juice and wine – Dr Julie Culbert (AWRI)

30 July 2020: Glutathione: what is it and why is it in my wine? – Dr Keren Bindon (AWRI)

6 August 2020: Sustainable Winegrowing Australia update – Dr Mardi Longbottom (AWRI)

20 August 2020: Autonomous tractors and other innovations from SITEVI – Dr Simon Nordestgaard (AWRI)

See the full program here.

System requirements

You will need a computer or mobile device with an internet connection. Audio is connected over the internet using your computer or mobile device’s speakers (Voice over Internet Protocol – VOIP). Participants joining a webinar via a mobile device will need to download a free app available from iTunes or Google Play.

If you’ve missed a previous AWRI webinar, you can watch online via the AWRI’s YouTube channel.

For further information on AWRI webinars, please contact the AWRI information services team.