The effect of partial defoliation, leaf position and developmental stage of the vine on leaf chlorophyll concentration in relation to the photosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignon

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dc.contributor.authorHunter, J. J.en_ZA
dc.contributor.authorVisser, J. H.en_ZA
dc.date.accessioned2017-06-15T09:47:47Z
dc.date.available2017-06-15T09:47:47Z
dc.date.issued1989
dc.descriptionCITATION: Hunter, J. J. & Visser, J. H. 1989. The effect of partial defoliation, leaf position and developmental stage of the vine on leaf chlorophyll concentration in relation to the photosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignon. South African Journal of Enology & Viticulture, 10(2):67-73, doi:10.21548/10-2-2289.en_ZA
dc.descriptionThe original publication is available at http://www.journals.ac.za/index.php/sajeven_ZA
dc.description.abstractThe effect of partial defoliation and leaf position on leaf chlorophyll concentration in relation to the photosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignon was investigated at berry set, pea size, veraison and ripeness stages. The leaves of the severely defoliated vines appeared to contain the highest chlorophyll concentration. In general, chlorophyll a decreased as the leaves were situated progressively deeper into the canopy. No consistent relationship between chlorophyll concentration, light intensity and photosynthetic activity could be found for the different leaf positions. However, to obtain leaves that photosynthesize optimally, the amount and time of leaf removal in the grapevine canopy must be carefully planned.en_ZA
dc.description.urihttp://www.journals.ac.za/index.php/sajev/article/view/2289
dc.description.versionPublisher's versionen_ZA
dc.format.extent7 pagesen_ZA
dc.identifier.citationHunter, J. J. & Visser, J. H. 1989. The effect of partial defoliation, leaf position and developmental stage of the vine on leaf chlorophyll concentration in relation to the photosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignon. South African Journal of Enology & Viticulture, 10(2):67-73, doi:10.21548/10-2-2289en_ZA
dc.identifier.issn2224-7904 (online)
dc.identifier.issn0253-939X (print)
dc.identifier.otherdoi:10.21548/10-2-2289
dc.identifier.urihttp://hdl.handle.net/10019.1/101791
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Society for Enology and Viticultureen_ZA
dc.rights.holderSouth African Society for Enology and Viticultureen_ZA
dc.subjectCabernet Sauvignon leaves -- Chlorophyll concentrationen_ZA
dc.subjectGrapevines -- Partial defoliationen_ZA
dc.subjectWine quality -- Environmental aspectsen_ZA
dc.subjectVineleaf photosynthesisen_ZA
dc.titleThe effect of partial defoliation, leaf position and developmental stage of the vine on leaf chlorophyll concentration in relation to the photosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignonen_ZA
dc.typeArticleen_ZA
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