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Relevant bibliographies by topics / Grapes Grapes Grapes Grapes Grapes Viticulture / Dissertations / Theses

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Dissertations / Theses on the topic 'Grapes Grapes Grapes Grapes Grapes Viticulture'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Ebadi, Ali. "Effects of pre-flowering conditions of temperature and light on flower and berry development in model grapevines." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phe15.pdf.

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Copies of author's previously published articles inserted. Bibliography: leaves 143-167. Temperature may affect fruit-set in grapevines through its effect on the development of the flowers up to flower opening and on pollination, be it on the germination of the pollen and the growth of the pollen tube, or on the post-fertilisation growth of the ovule.

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2

Collins, Marisa Jain. "Physiological responses of field grown shiraz grapevines to partial rootzone drying and deficit irrigation /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00002801.

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3

McCarthy, Michael G. "Effect of timing of water deficit on fruit development and composition of Vitis vinifera cv. Shiraz /." Title page, contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phm1233.pdf.

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4

Biondi, Marco. "Dynamics of grape berry volume change during ripening." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/m_biondi_112707.pdf.

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5

Du, Toit Petrus Gerhardus. "The effect of partial rootzone drying on the partitioning of dry matter, carbon, nitrogen and inorganic ions of grapevines." Title page, summary and table of contents only, 2005. http://hdl.handle.net/2440/37954.

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Partial rootzone drying (PRD) is an irrigation management technique designed to reduce water use in grapevines without a decline in yield, thereby increasing water–use efficiency (measured as t/ML) (WUE). The principle of PRD is to keep part of the root system at a constant drying rate to produce soil-derived signals to above–ground plant organs to induce a physiological response. Major PRD effects include a reduced canopy size and greatly increased WUE with possible improvements in fruit quality. Although we have a good understanding of the hormonal physiology of PRD, little is known on the e

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6

Gray, John D. "The basis of variation in the size and composition of grape berries." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phg7794.pdf.

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"Department of Horticulture, Viticulture and Oenology, Faculty of Agriculture and Natural Resource Sciences, The University of Adelaide, Waite Campus, Glen Osmond S.A." Bibliography: leaves 136-149 This investigated focussed on selected aspects of berry development and ripening that were subject to variation. Shiraz and Chardonnay were chosen as experimental varieties because these cultivars presented a large range of variability in the field. The extent of the variation within each of the recorded berry parameters was assessed using the coefficient of variation (CV), a unitless measure of sam

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7

Van, Zyl Tinake. "The effect of partial rootzone drying and foliar nutrition on water use efficiency and quality of table grape cultivars Crimson seedless and Dauphine." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/1279.

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8

Stoll, Manfred. "Effects of partial rootzone drying on grapevine physiology and fruit quality." Title page, contents and summary only, 2000. http://hdl.handle.net/2440/37734.

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Growth, productivity and fruit quality of grapevines are closely linked to soil water availability. Withholding of water for any length of time results in slowed growth. If drought continues yield may be lost. Vines can be manipulated to stimulate early defence mechanisms by decreasing soil water availability. By using an irrigation technique, which allows for separate zones with different soil moisture status, it is possible to stimulate response mechanisms of the root system which are normally related to water stress. The difficulty of separating 'wet' and 'dry' zones was initially overcome

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9

Stenger, John Edward. "Factors Affecting Grapevine Establishment in Northern Production Regions." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29211.

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Two experiments were conducted to detect differences in growth and cold hardiness during establishment of northern grown wine grapevines. One experiment tested the use of four grow tube treatments and two pruning levels on vine establishment in the upper Midwest. The variables included leaf area, stem height, root growth, phenology, and hardiness. Overall, few significant differences occurred among treatments where grow tubes were utilized. In the second season, vines without grow tubes had superior measurements in nearly all leaf area categories. For this reason, it is recommended that grower

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10

Afolabi, Wasiu Olalekan. "The effectiveness of vitis vinifera (grape) leaf litter to remove U.S. EPA priority phenols from simulated and industrial wastewaters." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/750.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Chemistry in the Faculty of Applied Sciences at the Cape Peninsula University of Technology<br>This study sought to prepare and characterise activated carbons from Vitis vinifera (grape) leaf litter, and assess the efficiency and potential application of the adsorbent for the removal of four phenolic compounds (phenol (P), 2-nitrophenol (2-NP), 4-nitrophenol (4-NP) and 2-chlorophenol (2-CP)) from synthetic and industrial wastewaters. Vitis vinifera (grape) leaf litter (GL) was obtained locally, and washe

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11

Lombard, Petrus Johannes. "A biochemical study of budbreak and plant growth regulators in table grapes." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52617.

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Thesis (MSc)--Stellenbosch University, 2002.<br>ENGLISH ABSTRACT: The cultivation of table grapes in the warmer areas of South Africa, indeed worldwide, is complicated by rest breaking problems in spring due to delayed budbreak. In order to overcome these problems rest breaking agents, mainly hydrogen cyanamide, are applied. However, instead of alleviating the problem, additional problems such as uneven budbreak and reduced production are often induced. This study was initiated to further understand the physiological processes occurring during budbreak and how the application of hydrogen

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12

Laker, Mareli S. (Mareli Susan). "The effect of atmospheric and soil conditions on the grapevine water status." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16376.

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Thesis (MScAgric)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Due to the extraordinary drought resistance of the grapevine, viticulture without irrigation in the winter rainfall coastal areas of South Africa is a feasible and commonly used practice. Wine quality is largely determined by the quality of the grapes from which it is made. Grapevine physiology is affected both directly and indirectly by water stress, which may vary according to soil type and prevailing atmospheric conditions. The water status of the grapevine can affect grape composition profoundly, either directl

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13

Ying, Guang-guo. "The environmental behaviour of herbicides in Australian viticulture." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phy515.pdf.

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Bibliography: leaves 185-200. The herbicides norflurazon, oxadiazon, oxyfluoren, trifluralin and simazine used in South Australian viticulture were assessed for mobility and degradation through a combination of laboratory and field experiments. Sorption, leaching and dissipation rates were measured, as was presence in shallow groundwater. The fate of herbicides from vine to wine was also investigated, tests being conducted on herbicide residue in both white and red grapes and presence in wine. A proposal for good environmental management of herbicide use in vineyards to minimise the effects o

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14

Grans, Catherina. "Tractors and horses in viticulture. Research on soil, grapes, must and labor." Master's thesis, ISA-UL, 2016. http://hdl.handle.net/10400.5/13342.

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Mestrado Vinifera Euromaster - Instituto Superior de Agronomia - UL / Institut National d'Études Agronomiques, Montpellier<br>Horses versus machines? Who would believe nowadays a mere animal can compete with the power of human engineering. This thesis has the objective to examine the effects of modern technology in viticulture in comparison to an old fashioned way of working with draft animals such as horses. Analyses were carried out during nine months and one vintage in two different vineyards with differences in cultivation practices with horses as draft animals on mostly bare soil or tract

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15

Lardner, Richard. "Early diagnosis and detection of Eutypa dieback of grapevines." Title page, table of contents and abstract only, 2003. http://hdl.handle.net/2440/37969.

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Eutypa dieback of grapevines, caused by Eutypa lata, is a major cause of reduced longevity in vineyards worldwide. The fungus grows in the woody tissue of infected vines, producing translocatable toxins that cause foliar symptoms of the disease. By the time foliar symptoms are evident the pathogen may have become well established in the vine. One aim of this study was to develop DNA markers to allow rapid reliable identification of E. lata and to detect the pathogen in infected wood. The second aim was to analyse secondary metabolite production by E. lata in order to gain information on the co

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16

Chen, Juan. "Mobility and environmental fate of norflurazon and haloxyfop-R methyl ester in six viticultural soils of South Australia /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09AEVM/09aevmc518.pdf.

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17

Van, Zyl Sonet. "Open hydroponic systems in table grape production : a case study." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/49775.

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Thesis (MScAgric)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: An open air hydroponic production system (OHS) is based on classic hydroponic principles, with the difference that it lacks climatological control because the plants are not produced in greenhouses and are cultivated in the outside environment. In these systems the plant is provided with all the essential nutrients through the irrigation system, which is scheduled according to accurate measurements of the available soil water, in three to seven pulses a day. The rationale is that, by delivering nutrients each day,

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18

Du, Plessis Beatrix W. "Cellular factors that affect table grape berry firmness." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019/825.

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19

Musango, Josephine Kaviti. "Determinants of producers' choice of wine grape cultivars in the South African wine industry /." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019.1/2474.

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20

Quixley, Pieter C. "A study of the interaction between vine vigour, crop level and harvest dates and their effects on grape and wine characteristics." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/1170.

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21

Fraser, W. J. "Manipulation of the taste of Regal Seedless (Vitis vinifera L.) table grapes." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/352.

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22

Petronilho, Sílvia Lancha. "Sustainable viticulture in Bairrada appellation: vineyard and harvest year effects on grapes oenological potential." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14101.

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Doutoramento em Química<br>The sustainable viticulture of a region passes, among other aspects, for maximizing the varieties potential minimizing subsequent interventions during winemaking, which should contribute to the production of quality wines maintaining their typicity and rationalizing costs. The detailed knowledge of each Appellation specificities, namely vineyard parcel (soil type and topographical peculiarities) and harvest climatic conditions is crucial for sustainability in this sector. Thus, in line with this current trend, the starting point for the development of this PhD

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23

Eustice, Tarryn. "Efficiency of irrigation practices for table grapes in the Hex River Valley." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/835.

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24

Louw, Victor de Wet. "Finansiele implikasies van besproeiing, geintegreer met lowerbestuur, vir rooi wyndruiwe in die Robertson-wynvallei." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96806.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The financial decision-making environment within which wine-grape producers function is challenging because of the complex interrelationships between yield, product price and input requirements. The complexity of farm systems is increased because production and financial decisions are necessarily made under uncertainty. Various issues influence the resilience of the wine industry. The goal of this study is to determine the financial implications of irrigation, integrated with canopy management practices on red wine cultivar

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25

Strydom, Janene. "Canopy manipulation practices for optimum colour of redglobe (V.Vinifera L.)." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2784.

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Thesis (MscAgric (Viticulture and Oenology))--University of Stellenbosch, 2006.<br>Under certain South African conditions, Redglobe develops a colour that is too dark and thus unacceptable for the Far Eastern markets. These markets require a pink colour instead of a dark red colour. The cultivation of grapes with an acceptable colour involves amongst other, canopy management practices. This generally includes the removal of leaves and/or lateral shoots. Hereby, the leaf area and the microclimatic conditions in the canopy are altered. The aim of this study was to test the usefulness of le

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26

Morsi, Taher Hussein. "Effects of vine architecture on water use, microclimate, fruit composition, and yield of Vitis vinifera L. 'Petite Sirah' grapevines." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185700.

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Effects of trellising on water use, absorption of photosynthetically active radiation (PAR, 400 to 700 nm wavelength) by foliage and potentially by fruit, fruit composition, and yield were studied in 1988 under semi-arid conditions on field-grown Vitis vinifera L. 'Petite Sirah' grapevines in a mature vineyard. The positioning of shoots on trellises resulted in canopies that were (1) positioned vertically (vertical canopy), (2) positioned in a "V" pattern with sides inclined 60° from horizontal (inclined canopy), and (3) inclined toward the vineyard floor (standard canopy). Seasonal water use

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27

Kaps, Martin L. "The influence of leaf, cluster, and berry thinning, and leaf position and shading on yield, juice composition and vine vigor of hybrid grapes /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260531956664.

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28

McCarthy, Michael G. "Influence of irrigation, crop thinning and canopy manipulation on composition and aroma of riesling grapes /." Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09A/09am123.pdf.

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29

Botes, Matthys Petrus. "Evaluation of parameters to determine optimum ripeness in Cabernet Sauvignon grapes in relation to wine quality." Thesis, Link to the online version, 2009. http://hdl.handle.net/10019/2744.

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30

Human, Michael Adriaan. "Effect of shading and ethephon on the anthocyanin composition of ‘Crimson seedless’ (Vitis vinifera L.)." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5337.

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Thesis (MScAgric (Viticulture and Oenology)--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: ‘Crimson Seedless’ is currently one of the most important and popular table grape cultivars produced in South Africa, and as such it is of great economic value for table grape producers. Major concerns with ‘Crimson Seedless’ is that it is prone to inadequate colouring, and with increased yields the berry size decreases. An additional difficulty is that methods used to increase berry size, further impede berry colouring. A plant growth regulator (PGR) commonly used in table grape production

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31

Sluys, Shona Lee. "Climatic influences on the grapevine: a study of viticulture in the Waipara basin." Thesis, University of Canterbury. Geography, 2006. http://hdl.handle.net/10092/1338.

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Climate is one of the most important factors influencing where wine grapes can be grown and the quality of wine produced from those grapes. A plants habitat has a profound influence on its growth and development. The surrounding climatic conditions at both the macro- and meso-scales influence the plant-climate miro-scale interactions. The main study site is the McKenzie Vineyard that is owned by Torlesse Wines. The climatic conditions of the surrounding Waipara region was also studied using climate data from the following vineyards; Canterbury House, River Terrace and Waipara West. The overall

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Campbell, James Alexander, and mikewood@deakin edu au. "Physiology and biochemistry of budburst in Vitis vinifera." Deakin University, 1993. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20060808.123121.

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Both the physiological and biochemical control of budburst in the grapevine, Vitis Vinifera L. were investigated. It was found that the accuracy of a predictive model for grapevine budburst based on ambient temperature was limited under the experimental conditions. There was a significant correlation of 4.7 ± 0.3 days between the days of maximal xylem exudation and budburst over the 3 years of investigation. The co-relationships between daily xylem exudate volume and a range of environmental parameters were considered. It was found that soil temperature was highly correlated against

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Engelbrecht, G. P. "Die invloed van bemesting en lowerbestuur op die kaliuminhoud en pH van Cabernet sap en wyn." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52781.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: In an attempt to reduce the pH of juice and wine, different fertiliser applications and canopy management practices were evaluated in a field trial. Fertiliser treatments consisted of no, CaS04, Ca(OH)2, and MgS04 fertilisation. Canopy management was as follows: suckering (leaving only two shoots per bearer), tipping, vertical shoot positioning and removal of lateral shoots and yellow leaves in the bunch zone (Canopy 1); suckering (leaving three shoots per bearer), vertical shoot positioning as well as topping (Can

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34

Bruwer, Rachel Jacoba. "The edaphic and climatic effects on production and wine quality of Cabernet Sauvignon in the Lower Olifants River region." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4342.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Cabernet Sauvignon is the most planted red cultivar in South Africa and the second most planted red cultivar in the Olifants River region. The cultivar is prone to vigorous growth with low yields. Excessive irrigation could accentuate these cultivar characteristics. Considering the foregoing, the aim of the study was to describe how Cabernet Sauvignon will react to climate, soil type (texture) and irrigation within the Lower Olifants River wine region to enable growers to make the right de

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Strever, Albert (Albert Erasmus). "Non-destructive assessment of leaf composition as related to growth of the grapevine (Vitis vinifera L. cv. Shiraz)." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19963.

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Thesis (PhD(Agric))--Stellenbosch University, 2012<br>ENGLISH ABSTRACT: Field spectroscopy was used to study leaf composition and selected factors (including canopy growth manipulation and water status changes) that may impact on it in a Vitis vinifera cv. Shiraz vineyard, showing considerable variability in vigour. Temporal and spatial variability in leaf composition were incorporated into measurements by analysing leaves in different shoot positions and at different developmental stages during three different growing seasons. Irrigation and canopy manipulation treatments were also impo

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Fuentes, Sigfredo. "Precision irrigation for grapevines (Vitis vinifera L.) under RDI and PRD." View thesis, 2005. http://handle.uws.edu.au:8081/1959.7/27689.

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Thesis (Ph.D.) -- University of Western Sydney, 2005.<br>"Thesis submitted in fulfillment of the requirements for the degree of Doctor of Philosophy, Centre for Plant and Food Sciences, University of Western Sydney, Australia, November 2005." Includes bibliographical references and appendices.

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37

Koekemoer, Abraham Leander. "The effect of different irrigation frequencies in combination with boron and calcium bunch applications on berry split of SoutherngrapeOne." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4215.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The table grape industry employ a wide range of viticultural management practices in order to produce the high quality grapes demanded by the export market. A common contributor to degrading the quality of table grapes is the occurrence of berry split, which not only has an unattractive visual effect, but also increases the berries’ susceptibility to infection by spoilage organisms. A number of environmental conditions such as rainfall and humidity, and/or agricultural practices, such as

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Roux, F. A. "Die invloed van spesifieke grond en klimaats parameters op wingerdprestasie, wynkwaliteit en -karakter." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1343.

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Kamffer, Zindi. "Carotenoid and chlorophyll content of Vitis vinifera cv. Merlot grapes during ripening with reference to variability in grapevine water status and vigour." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4305.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Previous research has shown that carotenoids are precursors of C13-norisoprenoid aroma compounds in wine. C13-norisoprenoids have low threshold values in wine with the most prominent C13-norisoprenoids being β-damascanone and β-ionone which contribute honey and floral like aroma to wine. Chlorophyll and its derivates have also been detected in wine with potential to be precursors to aroma compounds. Apart from the contribution of these pigments to wine aroma and quality they are vital role

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Lochner, Elana. "The evaluation of Fourier transform infrared spectroscopy (FT-IR) for the determination of total phenolics and total anthocyanins concentrations of grapes." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2470.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2006.<br>The assessments of grape and wine quality are complex issues and the wine industry needs more objective analysis of grape and wine quality. The standard quality assessment protocol for grading grapes at most wine cellars in South Africa is based on viticultural practices and the determination of chemical parameters such as ºBrix, pH and titratable acidity (TA). Grape juice indices calculated by formulae such as ºBrix/pH, TA/pH, ºBrix/TA, ºBrix x (pH)2 have been used in the past but these approaches have had limi

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Ford, R. J. "The effect of shading and crop load on flavour and aroma compounds in Sauvignon blanc grapes and wine." Lincoln University, 2007. http://hdl.handle.net/10182/498.

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The effects of crop load and berry exposure on the composition of Marlborough Sauvignon blanc grapes and wine from the Brancott vineyard, Blenheim, were explored. Commercially grown, 2-cane and 4-cane Sauvignon blanc vines were used with a row orientation of north-south. Two exposure treatments were imposed in the following manner: complete leaf removal was undertaken in the fruit zone and 50% shade cloth was erected to give a uniform shading treatment to half the trial vines. Weekly thirty-berry and whole bunch samples were taken from each of the 32 plots with the exception of the veraison pe

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Pienaar, Jacobus Wilhelm. "The effect of wind on the performance of the grapevine." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50486.

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Thesis (MScAgric)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Wind, as a component of the environment, contributes to the viticultural concept of terroir in the South Western Cape region of South Africa. Many other components also contribute to terroir (e.g. soil, altitude, direction of slope, etc.) and it is difficult to quantify the contribution of each. A good terroir promotes slow and complete ripening of the berries. A vineyard on such a terroir produces good quality crops over time and the effects of climatic extremes on the performance of the vine are limited by this

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Saxton, V. P. "Influence of ripening grape compounds on behavioural responses of birds." Diss., Lincoln University, 2004. http://hdl.handle.net/10182/28.

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Vineyards in New Zealand suffer bird damage caused by several avian species, including blackbirds and silvereyes. The introduced European Blackbird takes whole grapes which reduces yield. The self-introduced Australasian Silvereye pecks on grapes, leaving them on the vine to be further attacked by fungi and bacteria, and the subsequent off-odours can cause grapes to be refused by the winery or to suffer a price-reduction. Bird control methods remain primitive and largely ineffective during the long ripening period of wine grapes. An ecologically sound method to manage and reduce bird pressure

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Shange, Philisiwe Lawrancia. "Nutritional status of geologically different vineyards in Helderberg." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2603.

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Thesis (MscAgric (Viticulture and Oenology))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Little scientific information regarding the effect of different geological parent materials on grapevine performance is currently available in South Africa. This aspect is of special significance for the Helderberg area, where parent material may change from granite to shale over a short distance. This results in shale- as well as granite-derived soils often occurring within the same vineyard. The objectives of this study were to (i) quantify the nutritional status and other soil propertie

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Mairs, Ryan Alan. "Effects of Bacillus Mycoides Supplement in a Reduced Frequency Fungicide Program on Chambourcin Grapevines (Vitis Vinifera L.)." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/3047.

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Fungal diseases pose significant challenges for grapevine producers in Kentucky due to the region’s abundant moisture and relative humidity. Methods to reduce fungicide application frequency would prove both economically and temporally valuable to producers. A field experiment was established in Bowling Green, KY in 2017 to investigate Bacillus mycoides isolate J (LifeGard) as a supplement to a fungicide program for systemic acquired resistance (SAR). Three fungicide treatment regimens were implemented consisting of a program modelled from the Midwest Fruit Pest Management Guide (2017) and an

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Burger, Henning (Henning Jacobus) 1978. "Comparative analysis of four early white, seedless table grape cultivars in the Orange River area." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52739.

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Thesis (MScAgric) -- University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The table grape industry is a major contributor to the South African economy, directly through foreign earnings from this predominantly export-based industry, as well as indirectly through the employment of thousands of people. It is a growing industry and consists of several production areas. The fastest growing table grape production area in South Africa is the Lower Orange River area, which produces some of the earliest grapes in the Southern Hemisphere. The biggest river in South Africa irrigates this area an

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Campbell, Willow Devin. "Spatial Analysis of Climate and Winegrape Production in Winegrape Growing Regions of Oregon, United States of America." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1442.

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American Viticultural Areas (AVAs) are susceptible to small variations in climate and microclimates and are found within a narrow latitudinal range of prime climate conditions. These AVAs are geographically determined based on the best soil, climate, precipitation and temperature combinations for specific winegrape regions. As climate change continues to alter the local weather and the greater climate region of the Western United States, winegrape growing regions in Oregon are being affected. In an effort to determine what the pattern of change is, and compare previous studies of climate chang

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Raath, P. J. (. Pieter Johannes). "Effect of varying levels of nitrogen, potassium and calcium nutrition on table grape vine physiology and berry quality." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19996.

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Thesis (PhD(Agric))--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: A lack of defects is required for successful table grape marketing, which pre-suppose optimal vine performance, berry development and post-harvest quality. The supply of mineral nutrients affects vine development, physiology and berry quality. Despite a vast amount of research conducted over decades, there remain many unresolved issues regarding table grape vine nutrition to ensure optimal table grape quality and shelve-life. Unjustified fertilisation practices often include excessive applications of nitrogen (N),

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Serra-Stepke, Ignacio M. "Influence of soil parameters and canopy structure on root growth and distribution." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4184.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Because of long-term climate changes, apparently associated with higher temperatures and fewer rainfall events, factors such as water-use efficiency and site selection for new cultivars are a matter of increasing importance for viticulture. Within this context, the root system is expected to play a key role. Its relevance to grapevine functioning is due to the numerous functions in which it is involved. In the light of this, the development of the root system is highly relevant to the viti

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Boshoff, Cornelis Johannes. "A study of the interaction between grapevine vigour and water status for Vitis vinifera L. cv Merlot noir in Stellenbosch." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4122.

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Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Grapevine water status is considered to be the most important factor limiting plant growth and production in the Mediterranean zones. In these regions with limited summer rainfall and limited water resources for irrigation grapevines may experience water deficits for an extended period of time. The demand of water for agriculture is constantly increasing, and will continue to do so due to the rise in the world population and to the effects of climate change on rainfall and evaporative dema

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