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  • Effects of the times of application of a soil humic acid on berry quality of table grape (Vitis vinifera L.) cv Italia.

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    Author(s) : Ferrara, G.Brunetti, G.

    Author Affiliation : Dipartimento di Scienze delle Produzioni Vegetali, University of Bari "Aldo Moro", Via Amendola, 165/A, 70126 Bari, Italy.

    Author Email : ferrara.g@agr.uniba.it

    Journal article : Spanish Journal of Agricultural Research 2010 Vol.8 No.3 pp.817-822 ref.36

    Abstract : Humic acidshumic acidsSubject Category: Chemicals and Chemical Groups
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    are the most active components of soil organic matter and have been shown to have an hormone-like activity thus stimulating plant growth. The objective of this work was to verify the quantitative and qualitative yield responses of the table grape cv. Italia after the application of a humic acid at various phenological stages. The humic acid used in this study has been extracted from a clay soil of the ApuliaapuliaSubject Category: Geographic Entities
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    region and was applied at a concentration of 100 mg L-1 in four different times: pre-bloom (I), full-bloom (II), fruit set (III) and veraison (IV) and in two years, 2007 and 2008. The following parameters were measured at harvesting: berry size, °BrixbrixSubject Category: Properties
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    , pH and titratable aciditytitratable aciditySubject Category: Properties
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    . Finally, the °Brix/titratable acidity ratio has been calculated. Soil Plant Analysis Development (SPAD) readings were performed every 30 days up to harvesting time on the leaves of the middle shoots. No statistical differences were observed between the two years for all the parameters examined. The humic acid applied at full-bloom (II) induced a significant increase of berry size (width and weight) and a significant improvement of the other quality parameters (titratable acidity and °Brix/titratable acidity) with respect to the control. This study confirmed that humic acids, if applied at full-bloom, can induce significant increase of qualitative and quantitative parameters in table grape and can find a positive application in an organic and sustainable viticulture.

    ISSN : 1695-971X

    URL : http://www.inia.es/gcontrec/pub/817-8...

    Record Number : 20103309296

    Publisher : Spanish National Institute for Agricultural and Food Research and Technology (INIA)

    Location of publication : Madrid

    Country of publication : Spain

    Language of text : English

    Language of summary : Spanish

    Indexing terms for this abstract:

    Organism descriptor(s) : VitaceaevitaceaeSubject Category: Organism Names
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    , VitisvitisSubject Category: Organism Names
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    , Vitis viniferavitis viniferaSubject Category: Organism Names
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    Descriptor(s) : application dateapplication dateSubject Category: Properties
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    , brixbrixSubject Category: Properties
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    , crop growth stagecrop growth stageSubject Category: Miscellaneous
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    , crop qualitycrop qualitySubject Category: Properties
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    , crop yieldcrop yieldSubject Category: Properties
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    , foliar sprayingfoliar sprayingSubject Category: Techniques, Methodologies and Equipment
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    , fruitsfruitsSubject Category: Anatomical and Morphological Structures
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    , grapesgrapesSubject Category: Commodities and Products
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    , humic acidshumic acidsSubject Category: Chemicals and Chemical Groups
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    , titratable aciditytitratable aciditySubject Category: Properties
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    Identifier(s) : Puglia, Vitidaceae

    Geographical Location(s) : ApuliaapuliaSubject Category: Geographic Entities
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    , ItalyitalySubject Category: Geographic Entities
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    Broader term(s) : VitaceaevitaceaeSubject Category: Organism Names
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    , VitalesvitalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , VitisvitisSubject Category: Organism Names
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    , ItalyitalySubject Category: Geographic Entities
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    , Developed Countriesdeveloped countriesSubject Category: Miscellaneous
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    , European Union Countrieseuropean union countriesSubject Category: Institutions and Organisations
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    , Mediterranean Regionmediterranean regionSubject Category: Geographic Entities
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    , OECD Countriesoecd countriesSubject Category: Institutions and Organisations
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    , Southern Europesouthern europeSubject Category: Geographic Entities
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    , EuropeeuropeSubject Category: Geographic Entities
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