Archive for November, 2012

The following papers will be presented at the IX International Symposium on Grapevine Physiology and Biotechnology to be held in La Serena – Chile from the 21st to the 26th of April 2013. These papers are a common effort from The Vineyard of the Future members from Australia, Spain and Chile.

1) Using Infrared Thermal Images To Detect Smoke Contamination For Different Grapevine Cultivars. 

S. Fuentes, R. De Bei, K. Wilkinson, R Ristic and S.D. Tyerman

Link to abstract: IR smoke

2) Infrared Thermal Images Of Grapevines: From Manual to Complete Automated Analysis.

C. Poblete-Echeverria, S. Fuentes, R. De Bei, MP Diago , S. Ortega-Farias and J. Tardaguila

Link to abstract: IR analysis

3) Using smartphones and tablet PCs for canopy architecture assessment to upscale physiological parameters: LAICanopy© App. 

 S. Fuentes, R. De Bei and S.D. Tyerman.

Link to abstract: AppLAI

RoboGrape its already a prototype!

Posted: November 13, 2012 by vineyardofthefuture in News
Tags: , ,

A robot prototype for vineyard labor and vine-to-vine care

http://youtu.be/VjeG8CSK0kE?hd=1

“Effect of elevated temperature on the onset and rate of mesocarp cell death in berries of Shiraz and Chardonnay and its relationship with berry shrivel” 

Authors:

Marcos Bondada (University of Adelaide – INTA Argentina); Victor Sadras (SARDI) and

Sigfredo Fuentes (University of Adelaide – University of Melbourne)

 

Journal:

Australian Journal of Grape and Wine Research.

This paper show results of the effect of elevated temperature on the dynamics of berry cell death and shrivel for two varieties: Shiraz and Chardonnay.

These two varieties have contrasting dynamics of berry cell death and shrivel. The first can reach important levels of Shrivel at harvest with moderate mesocarp cell death in berries, while Chardonnay reaches high levels of cell death with minimal shrivelling symptoms.

Figure 1: Differences between Shiraz and Chardonnay in cell death and shrivel. Bright sections of the mesocarp corresponds to living tissue and dark areas to dead tissue. Images obtained using FDA stain (Fuentes et al. 2010).

Elevated temperature accelerated both mesocarp cell death and berry shrivelling in Shiraz and accelerated mesocarp cell death but had no impact on shrivel in Chardonnay. Mesocarp cell death seems necessary but not sufficient to explains berry shrivelling. Awareness of functional links between berry shrivel and mesocarp cell death, and the environmental modulation of these traits would likely contribute to management practices that could reduce the severity of shrivel in a context of warmer conditions.

Figure 2: Time-trajectory of mesocarp cell death. for Shiraz berries in the study of Tilbrook and Tyerman (2008). The bilateral model fitted to the data (eq. 2) has three biologically relevant parameters:  (the onset of rapid cell death), b1 (slope before the onset) and b2 (slope after the onset).

Figure: Octocopter carrying an SLR camera.

The VoF considers the use of drone technology for image capturing and analysis and remote sensing using hyperspectral, infrared and visible (RGB) cameras.

Increased use of drones for research and commercial use are under the Civil Aviation Safety Authority (CASA) in Australia, which according to commercial companies is too broad and needs to be more specific.

A new episode from the Technology Quarter (ABC) shows different uses for these drones and the concerns from commercial companies for their use. It aslo shows the concerns from the public related to privacy issues for civil use.

http://www.abc.net.au/news/abcnews24/programs/the-quarters/the-technology-quarter/

More news about drones and Journalism from Channel 9:

http://www.abc.net.au/news/2012-02-21/drone-journalism-takes-off/3840616

The rise of drones by Channel 7:

http://au.news.yahoo.com/today-tonight/lifestyle/article/-/15302303/rise-of-the-drones/