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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/55941

    Título
    Relationships between water status, leaf chlorophyll content and photosynthetic performance in Tempranillo vineyards
    Autor
    Hailemichael, Girma
    Catalina Tomás, Álvaro
    González García, María RosaAutoridad UVA Orcid
    Martín Peña, PedroAutoridad UVA Orcid
    Año del Documento
    2016
    Editorial
    South African Society for Enology and Viticulture
    Descripción
    Producción Científica
    Documento Fuente
    South african journal of enology and viticulture, Vol. 37, Nº 2, 2016, págs. 149-156
    Resumo
    The aims of this work were (i) to study the relationships between leaf water potential, foliar chlorophyllcontent and photosynthetic performance of grapevines under field conditions, and (ii) to evaluate thefeasibility of chlorophyll fluorescence parameters to assess water status in commercial vineyards. Duringthree consecutive seasons (2011 to 2013), 20 non-irrigated “Tempranillo” vineyard subzones were monitoredin Ribera del Duero, Spain. Data on foliar chlorophyll content, midday and predawn leaf water potential,net assimilation and chlorophyll fluorescence parameters were measured at fruit set, pre-véraison andvéraison. The results show that the water potential indicated weak to moderate stress in the study yearsand decreased along the vegetative cycle, while foliar chlorophyll contents showed an increasing trend. Thecorrelation between both variables was not consistent. Linear regression of the chlorophyll fluorescenceparameters in dark-adapted leaves, Fo, Fv and Fv/Fm, over chlorophyll content was strong in all thestudy years (higher determination coefficients for Fv/Fm at fruit set in 2012 and 2013). In general, thewater potential with low coefficients of variation showed a low effect on photosynthesis activity, althoughvalues in variables such as Fm, Fv, Fv/Fm, Fs/Fo and ΦPSII registered an increasing trend when middayleaf water potential decreased in the pre-véraison and véraison stages. These variables could be useful toestimate water status in commercial vineyards for application in precision viticulture.
    Materias (normalizadas)
    Clorofila
    Chlorophyll
    Vid - Cultivo
    Uvas - Análisis
    Vinos y vinificación - Análisis
    Photosynthesis
    Materias Unesco
    3309.29 Vino
    5102.01 Agricultura
    ISSN
    0253-939X
    Revisión por pares
    SI
    DOI
    10.21548/37-2-1004
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (Project RTA2014- 00077-C02-02)
    Junta de Castilla y León (Project VA011A10-2).
    Version del Editor
    https://www.journals.ac.za/index.php/sajev/article/view/1004
    Propietario de los Derechos
    © South African Society for Enology and Viticulture
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/55941
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • GIRVITEN - Artículos de Revista [7]
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    Relationships-betwen-water-status-leaf-chlorophyll-content.pdf
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