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Impacts of Leaf Area on the Physiological Activity and Berry Maturation of Merlot (Vitis vinifera L.)

Candar, Serkan; Bahar, Elman; Korkutal, İlknur


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    "creators": [
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        "affiliation": "Tekirda\u011f Viticulture Research Institute", 
        "name": "Candar, Serkan", 
        "orcid": "0000-0002-2608-8691"
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      {
        "affiliation": "Tekirda\u011f Nam\u0131k Kemal \u00dcniversitesi", 
        "name": "Bahar, Elman", 
        "orcid": "0000-0002-8842-7695"
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        "name": "Korkutal, \u0130lknur", 
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    "description": "<p>The aim of this research was to understand some physiological and agronomical behaviors of&nbsp;the Merlot grapevine subjected to different canopy management practices under the climatic conditions of&nbsp;different growing seasons in Tekirdag, Turkey. The resulting must composition and berry maturation&nbsp;were also determined. Adult vines of Vitis vinifera L. cv. Merlot, grafted onto 5BB were applied to&nbsp;different leaf areas (various levels of leaf removal from main and lateral shoots) during the growing&nbsp;season. Leaf photosynthesis (A) and transpiration (E), stomatal conductance (gs), yield parameters,&nbsp;maturation indices and berry composition at harvest were analyzed over a period of three consecutive&nbsp;years between 2013 and 2015. In the vegetation periods of 2013 and 2015 when there is less precipitation,&nbsp;proportional humidity is relatively low and temperatures are high, positive results were obtained in terms&nbsp;of quality criteria in half lateral shoots (3-4 leaves= HLS) application. Under extreme rainfall and high&nbsp;relative humidity conditions as in 2014, none lateral shoots (NLS) application increased physiological&nbsp;activity and relative quality. The main factor controlling the physiological behavior and grape ripening in&nbsp;Merlot vines was largely dependent on the meso-climatic conditions during the growing season.&nbsp;However, the total effect of small differences in the canopy microclimates created by different leaf area&nbsp;reduction applications affected the indicators of industrial maturity at the end of vegetation. Planning of&nbsp;canopy management practices should be done by taking into consideration long- and medium-term&nbsp;meteorological evaluations, and short-term planning within vegetation should be considered by weighing&nbsp;weekly and monthly meteorological risks.</p>", 
    "doi": "10.15666/aeer/1801_15231538", 
    "has_grant": false, 
    "keywords": [
      "Canopy management", 
      "Green pruning", 
      "Climate", 
      "Leaf gas exchange", 
      "Quality"
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    "publication_date": "2020-01-08", 
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      "title": "Dergi makalesi", 
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    "science_branches": [
      "Tar\u0131msal Bilimler > Ziraat > Bah\u00e7e Bitkileri > Ba\u011f Yeti\u015ftirme ve Islah\u0131"
    ], 
    "title": "Impacts of Leaf Area on the Physiological Activity and Berry Maturation of Merlot (Vitis vinifera L.)"
  }, 
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