Faculty of AgriSciences
The Faculty of AgriSciences at Stellenbosch University (SU) is held in high esteem at national and international levels for the quality of its training and research and also as consultant in the agricultural and forestry industry.
Sub-communities within this community
Recent Submissions
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The distribution and host range of the banana fusarium wilt fungus, fusarium oxysporum f. sp. cubense , in Asia
(Public Library of Science, 2017)Fusarium oxysporum formae specialis cubense (Foc) is a soil-borne fungus that causes Fusarium wilt, which is considered to be the most destructive disease of bananas. The fungus is believed to have evolved with its host ...
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Hanseniaspora uvarum from winemaking environments show spatial and temporal genetic clustering
(Frontiers Media, 2016)Hanseniaspora uvarum is one of the most abundant yeast species found on grapes and in grape must, at least before the onset of alcoholic fermentation (AF) which is usually performed by Saccharomyces species. The aim of ...
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Rapid methods for extracting and quantifying phenolic compounds in citrus rinds
(Wiley Open Access, 2016)Conventional methods for extracting and quantifying phenolic compounds in citrus rinds are time consuming. Rapid methods for extracting and quantifying phenolic compounds were developed by comparing three extraction solvent ...
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Radiation biology of Eldana saccharina (Lepidoptera: Pyralidae)
(Florida Entomological Society, 2016)The availability of a great number of infertile eggs can be regarded as a benefit in a program where natural enemies are combined with the SIT because non-fertile eggs can provide additional hosts for egg parasitoids and ...
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Mating compatibility and competitiveness between wild and laboratory strains of Eldana saccharina (Lepidoptera : Pyralidae) after radiation treatment
(Florida Entomological Society, 2016)The efficacy of the sterile insect technique (SIT) applied as part of area-wide integrated pest management (AW-IPM) depends on efficient transfer of sperm carrying dominant lethal mutations from sterile males to wild ...
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Stable isotope markers differentiate between mass-reared and wild Lepidoptera in sterile insect technique programs
(Florida Entomological Society, 2016)In this study we identified a number of moth (Lepidoptera) species that are potential targets for the sterile insect technique (SIT), and we assessed the feasibility of using stable isotope signatures as markers to distinguish ...
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General biology of Eldana saccharina (Lepidoptera: Pyralidae) : a target for the sterile insect technique
(Florida Entomological Society, 2016)Eldana saccharina Walker (Lepidoptera: Pyralidae: Gallerinae) occurs on many graminaceous crops and several wild grasses and sedges throughout Africa. It has been reared at the South African Sugarcane Research Institute ...
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Resistance to airflow, cooling characteristics and quality of pomegranate fruit inside ventilated packaging
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Ventilated packaging has found wide scale industry applications in fresh fruit handling and cooling operations. Given variations in fruit physical and thermal properties, optimal package design for a ...
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Symptomatology and anatomy of stemgrooving (legno riccio) in the grape vine
(South African Society for Enology and Viticulture, 1973)External and anatomical differences between organs affected and unaffected by stemgrooving were studied on the wine grape cultivar Chenin blanc and the table grape cultivars Barlinka and Almeria. Cultivar susceptibility, ...
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Soil moisture conservation in dryland viticulture as affected by conventional and minimum tillage practices
(South African Society for Enology and Viticulture, 1977)The effect of conventional clean cultivation, a straw mulch, chemical weed control and a grass sward on the soil moisture regime in a dryland vineyard was investigated. The results demonstrate that both a straw mulch and ...
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The effect of conventional and minimum tillage practices on some soil properties in a dryland vineyard
(South African Society for Enology and Viticulture, 1980)Preliminary results of a long-term viticultural tillage experiment comprising two groups of treatments, are reported. These groups are (i) a group of "minimum" tillage practices having received no mechanical soil tillage ...
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The effect of various supplementary irrigation treatments on plant and soil moisture relationships in a vineyard (vitis vinif era var. chenin blanc)
(South African Society for Enology and Viticulture, 1981)In a field plot trial with grape vines planted on a high potential soil, the soil moisture status on different irrigation treatment plots was compared with that of a dryland control. Soil moisture budgeting was based on ...
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Effect of growth arrestment disease on the anatomy and ultrastructure of vitis vinifera L. var. sultana
(South African Society for Enology and Viticulture, 1981)The anatomical and ultrastructural changes caused by the so called Growth Arrestment Disease (G.A.D.) in Vitis vinifera L. var. sultana were investigated by means of scanning and transmitted electron microscopy as well as ...
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Chenin blanc wine volatiles and the intensity of a guava-like flavour
(South African Society for Enology and Viticulture, 1982)A guava-like flavour occurring in some South African Chenin blanc and Colombard dry white wines was investigated. Headspace volatiles of some of these wines, as well as those of fresh guava fruits, were analysed by means ...
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Some volatile aroma components of vitis vinifera L. cv. sauvignon blanc
(South African Society for Enology and Viticulture, 1982)Volatile aroma components of Vitis vinifera L. cv. Sauvignon blanc grapes were studied to identify the components responsible for the characteristic aroma of this grape cultivar. Thirty three volatile components were ...
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Changes in carbohydrates in nursery-grown grapevine rootstocks
(South African Society for Enology and Viticulture, 1983)The utilisation and accumulation of sugar, starch and hemicellulose were studied in nursery-grown grapevine rootstocks. For an initial period lasting about 12 weeks all three components were utilised to varying degrees by ...
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Susceptibility to phytophthora cinnamomi of two grapevine rootstock clones after thermotherapy
(South African Society for Enology and Viticulture, 1984)The grapevine rootstocks 99 Richter clone I/30/1H74 infected with grapevine fleck and leafroll and 99 Richter Prosperi Super subclone 5 infected with stem pitting and leafroll were more susceptible to Phytophthora cinnamomi ...
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A comparative anatomical study of the grapevine shoot : I epidermis
(South African Society for Enology and Viticulture, 1984)Material gathered from three positions on the shoot and cane during veraison and two weeks after harvest were investigated for taxonomic features concerning the epidermis. Stomata and lenticels were present in all the ...
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Spread of phytophthora cinnamomi in a naturally infested vineyard soil
(South African Society for Enology and Viticulture, 1985)Phytophthora cinnamomi Rands. was isolated from rootstocks of dead or diseased vines in vineyards from 14 districts in the Cape Province of South Africa. It was recovered in vineyard soil to a depth of 320 mm. Downhill ...
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Growth characteristics of vitis vinifera L. cv. Cape riesling
(South African Society for Enology and Viticulture, 1985)The effect of topping on the growth behaviour of Vitis vinifera L. cv. Cape Riesling vineyard was investigated. Shoot and leaf growth of both topped and untopped vines, can be described as sigmoidal. Shoot (cm) and leaf ...
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A rapid and quantitative HPLC method for determination of diethylene glycol
(South African Society for Enology and Viticulture, 1986)A method was developed for determining diethylene glycol (DEG) by HPLC. Good separation was achieved by analysis of standard mixtures containing normal wine components and DEG. Addition of DEG to wine samples proved that ...
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Strategies for chemical control of root-knot nematodes (meloidogyne spp.) in established vineyards
(South African Society for Enology and Viticulture, 1986)Grape-vine root growth was measured for vertical and horizontal distribution as well as seasonal growth periods. The persistance of aldicarb and fenamiphos in the soil as well as in leaves and fruit of grape-vines was ...
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Effect of grape maturity and juice treatments on terpene concentrations and wine quality of vitis vinifera L. cv. weisser riesling and bukettraube
(South African Society for Enology and Viticulture, 1986)The effect of grape maturity aud different juice treatments, namely free-run, skin-contact, pressing and heat treatment on individual terpene concentrations in Weisser Riesling and Bukettraube juices and wines, as well as ...
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Resistance of grapevine rootstocks to meloidogyne incognita under field conditions
(South African Society for Enology and Viticulture, 1987)Resistance of grapevine rootstocks to root-knot nematodes (Meloidogyne incognita) was studied in field trials. Resistance was found to be adequately expressed by the degree of galling. A highly significant positive correlation ...
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Biological deacidification of musts induced by yeasts or malolactic bacteria and the effect on wine quality
(South African Society for Enology and Viticulture, 1987)This study investigated the possible use of Schizosaccharomyces pombe and Schizosaccharomyces malidevorans for deacidification of red wines during alcoholic fermentation, in comparison with existing deacidification practices ...
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Anatomical responses to cytokinins of abscised grapevine shoot apices cultured in vitro
(South African Society for Enology and Viticulture, 1987)Responses of excised shoot apices of V. vinifera L. cv. Chenin blanc to different cytokinin treatments were studied at various intervals (days) after the start of in vitro culture, using light and scanning electron microscopy. ...
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Population dynamics of the root-knot nematodes meloidogyne incognita (kofoid & white) chitwood and m. javanica (treub) chitwood on grapevines in two different regions of South Africa
(South African Society for Enology and Viticulture, 1987)Two root-knot nematode species, Me/oidogyne incognita and M.javanica, were studied with regard to their seasonal population fluctuations on grapevines growing in two vastly different climatic areas. Regular observations ...
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The effect of plant spacing on the water status of soil and grapevines
(South African Society for Enology and Viticulture, 1989)The effect of plant spacing on soil water content and plant water status is described. The higher root densities of narrower plantings resulted in a more rapid depletion of soil water content. This resulted in a more ...
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Dual cultures of meloidogyne javanica and grapevine rootstocks on artificial media
(South African Society for Enology and Viticulture, 1990)Grapevine rootstock cultivars were cultured on more than one artificial medium. Meloidogyne javanica was inoculated on the roots of different cultivars on seven media and penetration and development were recorded. Plate ...
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Effect of shading on the performance of vitis vinifera L. cv. cabernet sauvignon
(South African Society for Enology and Viticulture, 1989)The effect of shading on the performance of Cabernet Sauvignon was studied. Significant different levels of canopy density were created using the growth of neighbouring vines, thus ensuring no artificial change in natural ...
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