Archive for the ‘Research Paper’ Category

By: Sigfredo Fuentes

As the effects of climate change on Australian agriculture become more apparent, the importance of monitoring changing weather conditions and their diverse impacts will grow to paramount importance. Flexible and scalable processes for data analysis and modelling, particularly image and sensor data, are an essential part of how we monitor and respond to our changing environment. But more than that, we must foster a new generation of scientists and engineers who possess not only the technical skills to analyse this data, but the critical thinking and innovative aptitude to turn it into more sustainable outcomes for our economies, communities, and the entire planet.    Full Article: ea Magazinei-mk8

Download Full article by clicking here: IRScannerFuentes et alscan

 

 

 

 

 

 

 

The Vineyard of the Future initiative is a multinational project that aims to establish a fully instrumented vineyard using wireless connectivity and automated data gathering and analysis. It also aims to be a test-bed for new technology and a trial site for investigating the potential effects of climate change on viticulture in Australia, Chile, US and Spain. Researchers involved with the project have been developing an infrared scanner to assess plant water status at a fraction of the cost of infrared cameras and with the same comparable results.

IRscanner

What grapevines do when everybody is sleeping?

Posted: March 30, 2014 by vineyardofthefuture in About the project, News, Research Paper

New study shows results of night-time water losses for grapevines.

By Sigfredo Fuentes

moon

Abstract:

Night-time water uptake (Sn) mainly corresponds to stem and organ rehydration and transpiration, the latter through stomata and cuticle. Nocturnal transpiration is uncoupled from photosynthesis, therefore it contributes to reduce water use efficiency (WUE). Night-time grapevine physiology was measured on field grown grapevines (cv. Shiraz) under partial root-zone drying (PRD) and deficit irrigation (Exp 1), on potted vines (cv. Tempranillo) (Exp. 2) and on potted vines (cv. Cabernet Sauvignon) on a progressive drought treatment in the glasshouse (Exp. 3). Sap flow probes using the compensated heat pulse method (cHP) were installed in vines (Exp. 1 and 3). Night-time gas exchange measurements were performed for Exp. 3. Other vine water status monitoring methods used were: midday stem water potential (Ψs) for all experiments, and abscisic acid (ABA) concentration monitored from leaf sap for Exp. 3. Results showed that Sn was parabolically correlated to Ψs measured on the previous day for all treatments and cultivars. Two distinct zones where vines exhibit different night-time behaviour within the Ψs vs Sn parabolic relationships were identified for all experiments. The differences between the two identified areas were related to the water status conditions of the vines:  i) non-water stress conditions (0 < Ψs < -1.0 MPa); ii) water stress conditions (-1.0 MPa < Ψs < -2.0 MPa). Furthermore, levels of water stress were negatively correlated to concentrations of leaf sap ABA, which helped to explain the parabolic curve found for cv. Cabernet Sauvignon.

Link to full article, click NighttimeVines

Moderate wine consumption and depression

Posted: September 4, 2013 by vineyardofthefuture in News, Research Paper

 

glass

Alcoholic beverages are widely consumed. Depression, the most prevalent mental disorder worldwide, has been related to alcohol intake. We aimed to prospectively assess the association between alcohol intake and incident depression using repeated measurements of alcohol intake. “One drink a day, preferentially wine, may help prevent depression,” said lead researcher Dr. Miguel Martinez-Gonzalez, chair of the department of preventive medicine and public health at the University of Navarra, in Pamplona.

Link to full article: 1741-7015-11-192

 

 

By Sigfredo Fuentes1* , Roberta De Bei2  and Stephen Tyerman2

1 University of Melbourne, Melbourne School of Land and Environment, Victoria 3010, Australia

2 School of Agriculture Food and Wine and Waite Research Institute, The University of Adelaide, Plant Research Centre,

Waite Campus, PMB 1 Glen Osmond, SA 5064, Australia

* Corresponding author: sfuentes@unimelb.edu.au

Recent research has boosted understanding of the dynamics of night-time transpiration and water

rehydration of plants and grapevines, with the aim of obtaining amelioration strategies to maximise

water use efficiency for crops under a challenging climate.

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Read full article here: Research Gate: Sigfredo Fuentes

Dr Sigfredo Fuentes (Lecturer in Wine Science. The University of Melbourne – Australia)

Full article: Press here: ChileriegoInterview

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Winetech

WORKSHOP: New and Emerging Technologies for your Vineyard

Convenors: Dr Sigfredo Fuentes and Dr Roberta De Bei

Many people think that the ‘I, Robot’ vision from Isaac Asimov is not too far away from reality.

We have seen everyday more and more media coverage of the use of drones and robotic

technology for research in viticulture and agriculture in general. Automated systems can carry

instrumentation that enables the acquisition and analysis of data using contact, short and

long range remote sensing techniques. This workshop will explore the state of the art of

instrumentation and research to implement these systems in viticulture and winemaking.

Some of the technologies and instrumentation that will be covered range in applications from

the field to the cellar. The structure of this workshop will be in the soil – plant – atmosphere

context.

COST: AUD$ 150

WEB LINK: http://awitc.com.au