Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions

<i>Background</i>: Currently, viticulture is exposed to extreme weather fluctuations and global warming, thus the implementation of short-term adaptation strategies to mitigate climate change impacts will be of a wide importance for the sustainability and competitiveness of wine industry...

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Main Authors: Emilio Villalobos-Soublett, Gastón Gutiérrez-Gamboa, Claudio Balbontín, Andrés Zurita-Silva, Antonio Ibacache, Nicolás Verdugo-Vásquez
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/7/11/445
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author Emilio Villalobos-Soublett
Gastón Gutiérrez-Gamboa
Claudio Balbontín
Andrés Zurita-Silva
Antonio Ibacache
Nicolás Verdugo-Vásquez
author_facet Emilio Villalobos-Soublett
Gastón Gutiérrez-Gamboa
Claudio Balbontín
Andrés Zurita-Silva
Antonio Ibacache
Nicolás Verdugo-Vásquez
author_sort Emilio Villalobos-Soublett
collection DOAJ
description <i>Background</i>: Currently, viticulture is exposed to extreme weather fluctuations and global warming, thus the implementation of short-term adaptation strategies to mitigate climate change impacts will be of a wide importance for the sustainability and competitiveness of wine industry. This research aimed to study the effect of shading nets on the viticultural performance of a Muscat of Alexandria vineyard growing under hyper-arid conditions. <i>Methods</i>: Three treatments were randomly arranged in the vineyard: (i) a control (without shading), (ii) a white shading net (25% of shading), and (iii) a black shading net (40% of shading). Subsequently, yield, vine vigor, berry composition, leaf biomass and petiole nutrient content were assessed. <i>Results</i>: Both shading nets decreased the incidence of solar radiation in vines. The application of white shading nets induced a high bunch weight and a higher number of berries per bunch than the black shading nets. Black shading nets increased pruning weight, decreased Ravaz index and induced a considerably accumulation of soluble solids in grapes. This treatment also decreased bunch weight and the number of berries per bunch, and increased rachis length compared to control. Black shading nets decreased Mg petiole content, leaf dry weight and leaf biomass at flowering compared to uncovered vines. <i>Conclusions</i>: Shading considerably affected the viticultural performance of Muscat of Alexandria vines growing under hyper-arid conditions, modifying yield, leaf biomass and petiole nutrients.
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spelling doaj.art-e663d14064394617b7dde4b0522619122023-11-22T23:33:48ZengMDPI AGHorticulturae2311-75242021-11-0171144510.3390/horticulturae7110445Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid ConditionsEmilio Villalobos-Soublett0Gastón Gutiérrez-Gamboa1Claudio Balbontín2Andrés Zurita-Silva3Antonio Ibacache4Nicolás Verdugo-Vásquez5Centro de Investigación Intihuasi, Instituto de Investigaciones Agropecuarias (INIA), Colina San Joaquín s/n, La Serena 1700000, ChileEscuela de Agronomía, Facultad de Ciencias, Universidad Mayor, Huechuraba 8580000, ChileCentro de Investigación Intihuasi, Instituto de Investigaciones Agropecuarias (INIA), Colina San Joaquín s/n, La Serena 1700000, ChileCentro de Investigación Intihuasi, Instituto de Investigaciones Agropecuarias (INIA), Colina San Joaquín s/n, La Serena 1700000, ChilePrivate Consultant, La Serena 1700000, ChileCentro de Investigación Intihuasi, Instituto de Investigaciones Agropecuarias (INIA), Colina San Joaquín s/n, La Serena 1700000, Chile<i>Background</i>: Currently, viticulture is exposed to extreme weather fluctuations and global warming, thus the implementation of short-term adaptation strategies to mitigate climate change impacts will be of a wide importance for the sustainability and competitiveness of wine industry. This research aimed to study the effect of shading nets on the viticultural performance of a Muscat of Alexandria vineyard growing under hyper-arid conditions. <i>Methods</i>: Three treatments were randomly arranged in the vineyard: (i) a control (without shading), (ii) a white shading net (25% of shading), and (iii) a black shading net (40% of shading). Subsequently, yield, vine vigor, berry composition, leaf biomass and petiole nutrient content were assessed. <i>Results</i>: Both shading nets decreased the incidence of solar radiation in vines. The application of white shading nets induced a high bunch weight and a higher number of berries per bunch than the black shading nets. Black shading nets increased pruning weight, decreased Ravaz index and induced a considerably accumulation of soluble solids in grapes. This treatment also decreased bunch weight and the number of berries per bunch, and increased rachis length compared to control. Black shading nets decreased Mg petiole content, leaf dry weight and leaf biomass at flowering compared to uncovered vines. <i>Conclusions</i>: Shading considerably affected the viticultural performance of Muscat of Alexandria vines growing under hyper-arid conditions, modifying yield, leaf biomass and petiole nutrients.https://www.mdpi.com/2311-7524/7/11/445colored shade netsglobal warmingsolar radiation exclusion<i>Vitis vinifera</i>sustainable viticulture
spellingShingle Emilio Villalobos-Soublett
Gastón Gutiérrez-Gamboa
Claudio Balbontín
Andrés Zurita-Silva
Antonio Ibacache
Nicolás Verdugo-Vásquez
Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
Horticulturae
colored shade nets
global warming
solar radiation exclusion
<i>Vitis vinifera</i>
sustainable viticulture
title Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
title_full Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
title_fullStr Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
title_full_unstemmed Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
title_short Effect of Shading Nets on Yield, Leaf Biomass and Petiole Nutrients of a Muscat of Alexandria Vineyard Growing under Hyper-Arid Conditions
title_sort effect of shading nets on yield leaf biomass and petiole nutrients of a muscat of alexandria vineyard growing under hyper arid conditions
topic colored shade nets
global warming
solar radiation exclusion
<i>Vitis vinifera</i>
sustainable viticulture
url https://www.mdpi.com/2311-7524/7/11/445
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