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Article

Clonal Behavior in Response to Soil Water Availability in Tempranillo Grapevine cv: From Plant Growth to Water Use Efficiency

1
Agro-Environmental and Water Economics Institute (INAGEA-UIB), cta. de Valldemossa Km 7.5, 07122 Palma de Mallorca, Spain
2
Research Group on Plant Biology Under Mediterranean Conditions, Department of Biology, Universitat de les Illes Balears, cta. de Valldemossa Km 7.5, 07122 Palma de Mallorca, Spain
3
Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta Sur, Sector los Choapinos, Rengo 2940000, Chile
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(6), 862; https://doi.org/10.3390/agronomy10060862
Received: 20 May 2020 / Revised: 13 June 2020 / Accepted: 16 June 2020 / Published: 18 June 2020
(This article belongs to the Special Issue Stomata, Photosynthesis and Plant Water Use Efficiency)
Climate change threatens worldwide grapevine production, especially in Mediterranean areas. To assume this challenge, the replacement of plant material to choose one more adapted to the new environmental conditions has been proposed as one of the possible solutions. Thus, the study of genetic variability in water-use efficiency (WUE) is needed to guarantee the survival of viticulture in those critical areas. In this study, the variability of WUE in 23 Tempranillo clones growth in pots and submitted to well-watered conditions and moderate water stress was studied along two consecutive years. Leaf net photosynthesis (AN), stomatal conductance (gs), and plant growth parameters were measured, in addition the instrisic WUE (AN/gs), biomass production, and water consumed were calculated. Results show a clear genotype effect for most of the studied parameters, but, with an important year by year variability. We identified different clonal behavior in response to soil water availability, that permits to classify them as water-savers vs water-spenders. In general, there was no found relationship between leaf and plant WUE, even some genotypes as 232 or 1048 were coincident in higher leaf WUE showed highly productive in terms of biomass accumulation per unit of water applied. View Full-Text
Keywords: Vitis vinifera L.; photosynthesis; biomass; climate change; sustainability; clonal selection Vitis vinifera L.; photosynthesis; biomass; climate change; sustainability; clonal selection
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MDPI and ACS Style

Tortosa, I.; Escalona, J.M.; Toro, G.; Douthe, C.; Medrano, H. Clonal Behavior in Response to Soil Water Availability in Tempranillo Grapevine cv: From Plant Growth to Water Use Efficiency. Agronomy 2020, 10, 862. https://doi.org/10.3390/agronomy10060862

AMA Style

Tortosa I, Escalona JM, Toro G, Douthe C, Medrano H. Clonal Behavior in Response to Soil Water Availability in Tempranillo Grapevine cv: From Plant Growth to Water Use Efficiency. Agronomy. 2020; 10(6):862. https://doi.org/10.3390/agronomy10060862

Chicago/Turabian Style

Tortosa, Ignacio; Escalona, Jose M.; Toro, Guillermo; Douthe, Cyril; Medrano, Hipolito. 2020. "Clonal Behavior in Response to Soil Water Availability in Tempranillo Grapevine cv: From Plant Growth to Water Use Efficiency" Agronomy 10, no. 6: 862. https://doi.org/10.3390/agronomy10060862

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