Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards
ABSTRACT: Although water deficit and iron deficiency chlorosis are common environmental stresses in the Mediterranean area, few data are reported in the literature on their effects on vineyards, when acting simultaneously. The main objective of this research was to study the combined effects of iron...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
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| Series: | Scientia Agricola |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001600473&lng=en&tlng=en |
| _version_ | 1811270423580508160 |
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| author | María-Rosa González Girma Hailemichael Álvaro Catalina Pedro Martín |
| author_facet | María-Rosa González Girma Hailemichael Álvaro Catalina Pedro Martín |
| author_sort | María-Rosa González |
| collection | DOAJ |
| description | ABSTRACT: Although water deficit and iron deficiency chlorosis are common environmental stresses in the Mediterranean area, few data are reported in the literature on their effects on vineyards, when acting simultaneously. The main objective of this research was to study the combined effects of iron deficiency and water status on vigor, yield and fruit composition in rainfed vineyards. Moreover, the investigation aimed to evaluate the feasibility of using foliar chlorophyll content (Chl) and predawn leaf water potential (LWP), measured at veraison, to assess potential quality of grapes in the framework of precision viticulture. For this, 24 non-irrigated ‘Tempranillo’ vineyard subzones were monitored in Ribera del Duero (North-Central Spain) during three consecutive seasons (2011-2013). The analysis of variance and principal component analysis showed that malic acid concentrations of the must were impacted only by Chl, whereas total soluble solids and total acidity were mainly modified by LWP. Both water and iron status reduced yield and berry weight and had additive effects on extractable anthocyanin content in grapes, total polyphenol index and color density of the must. In all seasons, the ratio Chl/LWP had a better predicting value for quality parameters of these grapes than leaf area index, Chl or LWP individually. The present work demonstrates the potential interest of physiological indexes combining water status and foliar chlorosis as indicators of grape phenolic potential in rainfed vineyards affected by iron deficiency. |
| first_indexed | 2024-04-12T22:00:36Z |
| format | Article |
| id | doaj.art-680896753d42462cac7d7f941674fa9d |
| institution | Directory Open Access Journal |
| issn | 1678-992X |
| language | English |
| last_indexed | 2024-04-12T22:00:36Z |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Scientia Agricola |
| spelling | doaj.art-680896753d42462cac7d7f941674fa9d2022-12-22T03:15:07ZengUniversidade de São PauloScientia Agricola1678-992X76647348010.1590/1678-992x-2018-0084S0103-90162019001600473Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyardsMaría-Rosa GonzálezGirma HailemichaelÁlvaro CatalinaPedro MartínABSTRACT: Although water deficit and iron deficiency chlorosis are common environmental stresses in the Mediterranean area, few data are reported in the literature on their effects on vineyards, when acting simultaneously. The main objective of this research was to study the combined effects of iron deficiency and water status on vigor, yield and fruit composition in rainfed vineyards. Moreover, the investigation aimed to evaluate the feasibility of using foliar chlorophyll content (Chl) and predawn leaf water potential (LWP), measured at veraison, to assess potential quality of grapes in the framework of precision viticulture. For this, 24 non-irrigated ‘Tempranillo’ vineyard subzones were monitored in Ribera del Duero (North-Central Spain) during three consecutive seasons (2011-2013). The analysis of variance and principal component analysis showed that malic acid concentrations of the must were impacted only by Chl, whereas total soluble solids and total acidity were mainly modified by LWP. Both water and iron status reduced yield and berry weight and had additive effects on extractable anthocyanin content in grapes, total polyphenol index and color density of the must. In all seasons, the ratio Chl/LWP had a better predicting value for quality parameters of these grapes than leaf area index, Chl or LWP individually. The present work demonstrates the potential interest of physiological indexes combining water status and foliar chlorosis as indicators of grape phenolic potential in rainfed vineyards affected by iron deficiency.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001600473&lng=en&tlng=enVitis vinifera L.chlorophylldroughtleaf area indexstress |
| spellingShingle | María-Rosa González Girma Hailemichael Álvaro Catalina Pedro Martín Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards Scientia Agricola Vitis vinifera L. chlorophyll drought leaf area index stress |
| title | Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards |
| title_full | Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards |
| title_fullStr | Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards |
| title_full_unstemmed | Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards |
| title_short | Combined effects of water status and iron deficiency chlorosis on grape composition in non-irrigated vineyards |
| title_sort | combined effects of water status and iron deficiency chlorosis on grape composition in non irrigated vineyards |
| topic | Vitis vinifera L. chlorophyll drought leaf area index stress |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001600473&lng=en&tlng=en |
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