Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

The production and quality of grapes are determined by the hydric and nutritional status of the vine. In modern viticulture, the interface between grapevine and soil is represented by the rootstock, which modulates the uptake of water and nutrients. Thus, selection of new rootstocks for abiotic stre...

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Autores principales:	Davide Bianchi, Lucio Brancadoro
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	abiotic stress water stress mineral nutrition phenotyping viticulture Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/a384a3592e6246028123ce031b76362a
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spelling	oai:doaj.org-article:a384a3592e6246028123ce031b76362a2021-11-25T17:47:42ZWater Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection10.3390/horticulturae71105032311-7524https://doaj.org/article/a384a3592e6246028123ce031b76362a2021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/503https://doaj.org/toc/2311-7524The production and quality of grapes are determined by the hydric and nutritional status of the vine. In modern viticulture, the interface between grapevine and soil is represented by the rootstock, which modulates the uptake of water and nutrients. Thus, selection of new rootstocks for abiotic stress tolerance represents an adaptation strategy for viticulture to the new environmental conditions imposed by climate change. The aim of this work is to evaluate the water-use efficiency (WUE) and the nutritional status of a selection of 30 new rootstock genotypes, originating from several breeding programs. WUE and gas exchange were measured for each genotype in two environments characterized by different water availability, and the levels of N, P, K, Mg, Ca, Na, Fe, Mn, and Zn in the leaf blades were determined during the phenological stages of flowering and ripening. Water availability was different in the two environments, affecting gas exchange, with mean values of carbon assimilation of 10.43 ± 0.32 and 3.84 ± 0.34 µmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup>, respectively. Genotypes were classified according to their water stress tolerance, vigor, and affinity for macronutrients and micronutrients. A total of 14 genotypes showed tolerance to water stress, and 10 of them reported high vigor and carbon assimilation. Furthermore, the majority of water-stress-tolerant genotypes had greater affinity for Mg than for K. In further studies, the most promising rootstocks will be evaluated in grafting combination with <i>Vitis vinifera</i>.Davide BianchiLucio BrancadoroMDPI AGarticleabiotic stresswater stressmineral nutritionphenotypingviticulturePlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 503, p 503 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	abiotic stress water stress mineral nutrition phenotyping viticulture Plant culture SB1-1110
spellingShingle	abiotic stress water stress mineral nutrition phenotyping viticulture Plant culture SB1-1110 Davide Bianchi Lucio Brancadoro Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
description	The production and quality of grapes are determined by the hydric and nutritional status of the vine. In modern viticulture, the interface between grapevine and soil is represented by the rootstock, which modulates the uptake of water and nutrients. Thus, selection of new rootstocks for abiotic stress tolerance represents an adaptation strategy for viticulture to the new environmental conditions imposed by climate change. The aim of this work is to evaluate the water-use efficiency (WUE) and the nutritional status of a selection of 30 new rootstock genotypes, originating from several breeding programs. WUE and gas exchange were measured for each genotype in two environments characterized by different water availability, and the levels of N, P, K, Mg, Ca, Na, Fe, Mn, and Zn in the leaf blades were determined during the phenological stages of flowering and ripening. Water availability was different in the two environments, affecting gas exchange, with mean values of carbon assimilation of 10.43 ± 0.32 and 3.84 ± 0.34 µmol CO<sub>2</sub> m<sup>−2</sup> s<sup>−1</sup>, respectively. Genotypes were classified according to their water stress tolerance, vigor, and affinity for macronutrients and micronutrients. A total of 14 genotypes showed tolerance to water stress, and 10 of them reported high vigor and carbon assimilation. Furthermore, the majority of water-stress-tolerant genotypes had greater affinity for Mg than for K. In further studies, the most promising rootstocks will be evaluated in grafting combination with <i>Vitis vinifera</i>.
format	article
author	Davide Bianchi Lucio Brancadoro
author_facet	Davide Bianchi Lucio Brancadoro
author_sort	Davide Bianchi
title	Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
title_short	Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
title_full	Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
title_fullStr	Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
title_full_unstemmed	Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection
title_sort	water use efficiency and nutritional status of a new grapevine rootstock selection
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a384a3592e6246028123ce031b76362a
work_keys_str_mv	AT davidebianchi wateruseefficiencyandnutritionalstatusofanewgrapevinerootstockselection AT luciobrancadoro wateruseefficiencyandnutritionalstatusofanewgrapevinerootstockselection
_version_	1718412003525001216

Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

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