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  1. Conference proceedings: Biological control of Botrytis cinerea (in: Goussard, P. G.; Archer, E.; Saayman, D.; Tromp, A.; Wyk, J. van (Eds.): Proceedings of the First SASEV International Congress, Cape Town, South Africa, 8-10 November 1995)

    Dicks, L. M. / Bence, J. K. / Goussard, P. G. / Archer, E. / Saayman, D. / Tromp, A. / Wyk, J. van (Eds.)

    1995  , Page(s) 75–77

    Abstract: A protein isolated and purified from a cell-free medium of a wine strain of Latobacillus sp. caused granulation of the cytoplasm of the mycelium of B. cinerea, leakage of amino acids and K ions through the plasmamembrane, and enhancement of the ... ...

    Event/congress Proceedings of the First SASEV International Congress
    Abstract A protein isolated and purified from a cell-free medium of a wine strain of Latobacillus sp. caused granulation of the cytoplasm of the mycelium of B. cinerea, leakage of amino acids and K ions through the plasmamembrane, and enhancement of the incorporation of EXP35S-methionine into intracellular protein. The antifungal protein is hydrophobic and >10 kDa. It is also active against several Gram +ve bacteria, and Rhizophus and Monilinia spp. (W.R. Jarvis, Harrow) [A 3262]
    Keywords botrytis ; biological plant protection
    Language English
    Document type Conference proceedings
    Database Viticulture and Oenology Abstracts

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  2. Conference proceedings: The use of in vitro somatic embryogenesis in grapevine improvement (in: Goussard, P. G.; Archer, E.; Saayman, D.; Tromp, A.; Wyk, J. van (Eds.): Proceedings of the First SASEV International Congress, Cape Town, South Africa, 8-10 November 1995)

    Goussard, P. G. / Wiid, J. / Archer, E. / Saayman, D. / Tromp, A. / Wyk, J. van (Eds.)

    1995  , Page(s) 58–60

    Abstract: The effectiveness of somatic embryogenesis in eliminating viruses (GFkV, GLRaV, GFLV and its yellow mosaic serotype YM) was investigated. Dormant canes from field vines showing visual symptoms of above viruses were collected and the virus status was ... ...

    Institution Univ. of Stellenbosch, Department of Viticulture and Oenology, 7602 Matieland, Republic of South Africa
    Event/congress Proceedings of the First SASEV International Congress
    Abstract The effectiveness of somatic embryogenesis in eliminating viruses (GFkV, GLRaV, GFLV and its yellow mosaic serotype YM) was investigated. Dormant canes from field vines showing visual symptoms of above viruses were collected and the virus status was confirmed by immunosorbent electron microscopy (ISEM) with decoration and ELISA. Development of inflorescences on forced canes was promoted by the removal of all vegetative tissues. Anthers on ovaries were cultured on NN medium supplemented with growth regulators. Proembryogenic masses were transferred to hormone-free medium. Somatic plantlets developed from germinated embryos were acclimatised and transferred to soil. GLRaV and GFkV were not translocated from infected tissue via proliferating callus to embryoids, but other 2 viruses could not be eliminated. Raising of the culturing temperature up to 35 DEG C during the first 60 d resulted in complete elimination of all viruses. The effectiveness and less expenses of this technique comparing the conventional procedure (heat therapy combined with shoot-apex method) were emphasized. (R. Hollo, Eger) [A 3262]
    Keywords in vitro culture ; embryo ; virus ; variety of vine
    Language English
    Document type Conference proceedings
    Database Viticulture and Oenology Abstracts

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  3. Article: Holz- und Rindenanatomie der Lauraceen IV. Dahlgrenodendron J.J.M. van der Merwe und van Wyk

    Richter, H.G. / Wyk, A.E. van

    IAWA Bulletin (Netherlands)

    1990  

    Institution Bundesforschungsanstalt für Forst- und Holzwirtschaft, Hamburg (Germany, F.R.). Inst. für Holzbiologie und Holzschutz
    Keywords Pflanzenanatomie ; Rinde ; Taxonomie ; Holz ; Suedafrika ; Lauraceae
    Language English
    Edition v. 11(2) p. 173-182
    Document type Article
    Database ELFIS - Nutrition, agriculture and forestry information system

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  4. Article: Wood and Bark Anatomy of Lauraceae IV. Dahlgrenodendron J.J.M. Van Der Merwe ' Van Wyk

    Richter, H. G / Van Wyk, A. E

    IAWA journal. , v. 11, no. 2

    1990  

    Abstract: The southem African tree, Dahlgrenodendron natalense, previously ascribed to the genus Beilschmiedia was recently segregated as a monotypic genus, Dahlgrenodendron, on account of its distinctive exomorphology, palynology and fruit structure. ... ...

    Abstract The southem African tree, Dahlgrenodendron natalense, previously ascribed to the genus Beilschmiedia was recently segregated as a monotypic genus, Dahlgrenodendron, on account of its distinctive exomorphology, palynology and fruit structure. Dahlgrenodendron differs from Beilschmiedia in nearly all quantitative and qualitative features of wood and bark anatomy. The overall structural pattern of these tissues does not support the initial assignment of Dahlgrenodendron to the tribe Cryptocaryeae, nor does it fit any other lauraceous taxon. Within Lauraceae, an isolated non-aligned status is provisionally proposed for the genus.
    Keywords bark ; Beilschmiedia ; fruits ; palynology ; trees ; wood ; wood anatomy
    Language English
    Size p. 173-182.
    Publishing place Brill
    Document type Article
    ISSN 0928-1541
    DOI 10.1163/22941932-90000513
    Database NAL-Catalogue (AGRICOLA)

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  5. Book: The minimum subsistence level of non-whites living in the main urban areas of the Republic of South Africa, May 1974 [The field for the study was carried out mainly by M. Loubser, B. A. Moolman and H. de J. van Wyk]

    Nel, Petrus Abel / Loubser, M / Moolman, B. A / Wyk, H. de J. van

    ((Bureau of Market Research, University of South Africa. Research report ; 41))

    1974  

    Title variant The minimum subsistence level of non-whites living in the main urban areas of the Republic of South Africa, May 1974
    Series title (Bureau of Market Research, University of South Africa. Research report ; 41)
    Keywords Lebenshaltungsminimum ; Südafrikanische Republik ; Kapstadt ; Durban ; East London ; Johannesburg ; Pretoria ; Port Elizabeth
    Language Undetermined
    Size V Bl., 32,78 S. 4"
    Document type Book
    ISBN 0949951390 ; 9780949951397
    Database ECONomics Information System

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  6. Book ; Online: Transformation of learning and teaching in rehabilitation sciences

    Visser, Monique / Oosthuizen, Helena / Louw, Alwyn J.N / Unger, Marianne / Keiller, Lianne / Inglis-Jassiem, Gakeemah / Hanekom, Susan D / de Beer, Alida / Gaskin, Ashley / Bardien, Faeza / Manas, Lorisha / Coetzee, Marisa / de Wit, Monique / Nizeyimana, Eugene / Dawood, Gouwa / Plastow, Nicola / Joseph, Conran / Louw, Quinette / Kloppers, Maatje /
    Bester, Juanita / Baxter, Anja / Denton, ELLA PRU / Koegelenberg, Ané / Burchell, Helena J / Simpson, Tayla-leigh / van Wyk, Marnie / Ernstzen, Dawn Verna / Schmutz, Anna M. S / Meyer, Ilse S / Filies, Gerard / Müller, Jana / Gerber, Berna / Berner, Karina / Pefile, Ntsikelelo / Charumbira, Maria Yvonne / Jacobs-Nzuzi Khuabi, Lee-Ann

    A case study from South Africa, in Human Functioning

    (Technology and Health Book Series)

    2022  

    Series title Technology and Health Book Series
    Keywords Physiotherapy ; Curriculum reform;transformative learning;leadership;interprofessional education;clinical competence;peer teaching and learning;learning technologies
    Language English
    Size 1 electronic resource (338 pages)
    Publisher AOSIS
    Document type Book ; Online
    Note English
    HBZ-ID HT030375587
    ISBN 9781779952523 ; 177995252X
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  7. Article ; Online: University and stakeholder partnerships to innovate in sport - the development of the South African Cricketers' Association (SACA) career transition screening tool.

    Hendricks, S / van Wyk, J P / Player, B / Schlebusch, R

    South African journal of sports medicine

    2023  Volume 35, Issue 1, Page(s) v35i1a15218

    Abstract: In sports, the value and mutual benefit of university-stakeholder partnerships have been well-recognised. It has been argued that cricket has a unique set of challenges compared to other team sports. In 2016, the South African Cricketers' Association ( ... ...

    Abstract In sports, the value and mutual benefit of university-stakeholder partnerships have been well-recognised. It has been argued that cricket has a unique set of challenges compared to other team sports. In 2016, the South African Cricketers' Association (SACA) and the University of Cape Town established a partnership to (i) conduct novel research on professional cricketers and (ii) ensure SACA programmes and initiatives are informed by said research and/or the currently available literature. As the demand on professional cricketers has increased, so has the interest in their career transitioning. That is, how do professional cricketers manage stressors created by changes (or non-changes) throughout their playing careers? To help identify gaps for intervention as a cricketer transitions through their professional career, the purpose of this short report is to describe how a university-stakeholder partnership developed a career transitioning screening tool for professional cricketers in South Africa.
    Language English
    Publishing date 2023-06-05
    Publishing country South Africa
    Document type Journal Article
    ZDB-ID 2475947-8
    ISSN 2078-516X ; 2078-516X
    ISSN (online) 2078-516X
    ISSN 2078-516X
    DOI 10.17159/2078-516X/2023/v35i1a15218
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Comparison of fixed and random regression models for the analysis of milk production traits in South African Holstein dairy cattle under two production systems

    Van Niekerk, M. / Neser, F. / Van Wyk, J. / Ducrocq, V.

    Livestock science

    2023  Volume 267, Issue -, Page(s) 105125

    Language English
    Document type Article
    ZDB-ID 2226176-X
    ISSN 1871-1413
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 3115: Show issues

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  9. Article: Comparison of fixed and random regression models for the analysis of milk production traits in South African Holstein dairy cattle under two production systems

    Van Niekerk, M. / Neser, F. / Van Wyk, J. / Ducrocq, V.

    Livestock science

    2023  Volume 267, Issue -, Page(s) 105125

    Language English
    Document type Article
    ZDB-ID 2226176-X
    ISSN 1871-1413
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 3115: Show issues

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  10. Article ; Online: What is in a name? Scientific name changes of potentially poisonous plants and fungi in South Africa.

    Botha, C J / van Wyk, A E

    Journal of the South African Veterinary Association

    2022  Volume 93, Issue 2, Page(s) 76–81

    Abstract: Changes over the past five decades in the scientific names of some potentially poisonous plants and toxigenic fungi in South Africa are briefly reviewed. Some of the reasons why taxonomists change names are highlighted. In recent years, DNA sequencing ... ...

    Abstract Changes over the past five decades in the scientific names of some potentially poisonous plants and toxigenic fungi in South Africa are briefly reviewed. Some of the reasons why taxonomists change names are highlighted. In recent years, DNA sequencing data have contributed considerably towards establishing phylogenetic relationships among plants, often resulting in changes in generic circumscription and, consequently, the names of species. Philosophical differences between the phylogenetic and the evolutionary schools of plant classification are briefly explained as these may manifest as different classifications for the same group of plants. Although choice of classification remains the prerogative of the end-user of plant names, in this review, the classifications for plants currently adopted by the South African National Biodiversity Institute (SANBI) in its online database, Plants of Southern Africa (POSA), were followed. Noteworthy generic changes include
    MeSH term(s) Animals ; Plants, Toxic ; Phylogeny ; South Africa ; Australia ; Fungi
    Language English
    Publishing date 2022-06-16
    Publishing country South Africa
    Document type Review ; Journal Article
    ZDB-ID 188571-6
    ISSN 2224-9435 ; 1019-9128 ; 0301-0732 ; 0038-2809
    ISSN (online) 2224-9435
    ISSN 1019-9128 ; 0301-0732 ; 0038-2809
    DOI 10.36303/JSAVA.160
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2384: Show issues Location:
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