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Results for “water stress detection”
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Near-real-time characterisation of vines
A research project was undertaken to explore advanced image-based techniques for vineyard monitoring to define canopy characteristics and vigour at the plant level.
By Carlos Poblete-Echeverria · 5 min read
New Winetech projects for 2017 (Part 5)
1. Effect of HWT (50°C for 45 minutes) on fungal pathogens in vine nurseries
By Winetech Editorial Team · 5 min read
Amino acids in South African grape musts (Part 1): Composition and profiles
PHOTO: Francois Viljoen.
By Astrid Buica, Gabriella Petrovic and Jose-Luis Aleixandre-Tudo · 7 min read
Detection and quantification of black foot disease and crown and root rot pathogens in grapevine nurseries
The aim of this study was to evaluate the effect of different rotation crops used by nurseries on BFD and CRR pathogens by detecting and quantifying these patho
By Doronae · 9 min read
How volatile fatty acids and sulphurous compounds impact on key aromas
This is the final article in a series of three which covers the fungal and bacterial origins of wine aromas. These articles detail esters, aldehydes, volatile f
By Russell Moss · 9 min read
Borer beetle research leads the way at Vergelegen
An ongoing concern of tree-lovers is a dreaded pest known as the polyphagous shot hole borer beetle (PSHB). This tiny beetle bores into tree trunks, introducing a fungus that weakens and often kills the trees.
By SA Wine Industry · 5 min read
Hyperspectral - the answer to water stress? (Part 1)
This study presents a novel hyperspectral-machine learning methodology for the non-destructive identification of water-stressed vines in a Shiraz vineyard.
By Kyle Loggenberg, Albert Strever & Nitesh Poona · 8 min read
Hyperspectral - the answer to water stress? (Part 2)
The research presented in Part 2 aims to derive a two-band optimised vegetation index using hyperspectral data captured across the visible near-infrared (VNIR) region of the electromagnetic (EM) spectrum.
By Marc Dukes, Nitesh Poona & Kyle Loggenberg · 5 min read
Micro agglomeration and bioavailability of sterols - the revolutionary wine yeast protector
Specific research has focused on how sterols influence yeast’s physiological state and metabolism and how it was directly correlated with a secure end of fermentation.
By Lallemand · 11 min read
Quality grapes with limited water
This study is unique in that it is the first study to provide data on vines subjected to water-restricted conditions from the day that they were planted. It is important, because it contributes towards ensuring sustainable and profitable production of quality wine grapes in South Africa, even in…
By Melané Vivier · 14 min read
