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Results for “grapevine roots.”
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Hairy roots - a biotechnological tool for grapevine improvement
Hairy roots arise when the phytopathogenic bacterium, Rhizobium rhizogenes inserts DNA into a wounded plant’s genome, triggering the formation of rapidly growing root masses. The rapid growth and relatively fast establishment of hairy roots led to their use in laboratories, where they are used to…
· 8 min read
Poor detection of grapevine leafroll-associated virus type 3 in rootstocks
PHOTO: Piet Goussard.
By Gerhard Pietersen and Megan Harris · 6 min read
Resistance of grapevine rootstocks to nematodes - the status quo in South Africa
This project looked at 20 different rootstocks (both imported and local) to see how resistant they are to five common nematodes found in South African vineyards, including M. xenoplax, M. javanica, M. incognita, P. vulnus and X. index.
By Rinus Knoetze · 5 min read
Vineyard lifetime - protection of a valuable asset
The establishment of a vineyard block is a long term investment which may amount to as much as R300 000 per hectare in the case of wine grapes. A longer product
By Doronae · 7 min read
High(er)-throughput evaluation of novel grapevine material for important traits
In a South African wine industry-funded study, researchers focused on selecting and screening ‘untested/poorly tested’ rootstock material for abiotic stress-resistance phenotypes. The study also evaluated disease-resistance phenotypes of potentially valuable grapevine material.
By Melané Vivier · 5 min read
South African viticulture books receive international OIV awards
We're pleased to announce that two recently published South African viticulture books were honoured by the International Organisation of Vine and Wine (OIV)’s i
By Anton Pretorius · 3 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
Soil preparation with special emphasis on the re-compaction of vineyard soils
Introduction
By Sandile · 13 min read
