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Results for “grapevines”
Showing 1–12 of 180 results
180 results — page 1 of 15
Sawing back of grapevines for retraining
The decision to saw back and renew a vineyard requires thoughtful consideration. In certain cases, the inputs required for renewal are not justified by the likely outcome.
By Hennie Visser · 5 min read
The Smart-Dyson trellis system for grapevines
The effectiveness of grapevine canopies depends largely on the distribution of the shoots on the trellis system.
By Leon Dippenaar · 11 min read
Post-harvest strategy for maximum reserve accumulation in grapevines
It is crucial to keep the grapevine and soil as healthy and optimal as possible to enable maximum build-up of reserves post harvest.
By Klaas Coetzee · 8 min read
A method of choice for the evaluation of infection of grapevines
RT-PCR, combined with SSCP analysis of amplicons, is a method of choice for a brief evaluation of the complexity of virus infection of grapevines in a standard
By Dariusz Goszczynski · 4 min read
Irrigation strategy and trellis system (Part 2): Yield of Pinotage grapevines in the Breede River Valley region
The primary objectives of the study were to determine during what stage(s) Pinotage is sensitive to water deficits, the most suitable irrigation strategy when water restrictions are imposed during periodic droughts, and if more grapes can be produced with the same volume of irrigation water when…
By Carolyn Howell · 23 min read
Irrigation strategy and trellis system (Part 1): Vegetative growth of Pinotage grapevines in the Breede River Valley region
The primary objective of the study was to determine during what stage(s) Pinotage vegetative growth is sensitive to water deficits, and the most suitable irrigation strategy when water restrictions are imposed during periodic droughts.
By Carolyn Howell · 16 min read
In-field fractional use of winery wastewater with raw water (Part 5): Assessment of the below- and above-ground chemical status of grapevines in the lower Olifants River region
The objective of this study was to make an assessment of the below- and above-ground chemical status of the grapevines growing in the Lower Olifants River region.
By Carolyn Howell & Reckson Mulidzi · 11 min read
New Winetech projects for 2017 (Part 4)
1. Improving poor performing grapevines by means of root pruning or mulching
By Winetech Editorial Team · 4 min read
Harlequin beetle - the Waterloo for South African wines?
In this study, the seasonal occurrence of the harlequin beetle (Harmonia axyridis) was monitored in four vineyards and the adjacent windbreaks over three growin
By Doronae · 4 min read
Treated municipal wastewater for irrigation (Part 1): Irrigation application and water quality
This study’s objectives were to assess the quality of treated municipal wastewater (TMW) used for irrigation of commercial vineyards and to quantify the amount of plant nutrients applied via TMW irrigation.
By Carolyn Howell, Karla Hoogendijk, Philip Myburgh, Vink Lategan & Eduard Hoffman · 15 min read
