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Mostrando ítems 1-15 de 15
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A functional–structural plant model that simulates whole- canopy gas exchange of grapevine plants (Vitis vinifera L.) under different training systems
Prieto, Jorge Alejandro; Louarn, Gaëtan; Perez Peña, Jorge Esteban; Ojeda, Hernan; Simonneau, Thierry; Lebon, Eric (Oxford University Press, 2020-09)Background and Aims: Scaling from single-leaf to whole-canopy photosynthesis faces several complexities related to variations in light interception and leaf properties. To evaluate the impact of canopy strucuture on gas ... -
A leaf gas exchange model that accounts for intra‐canopy variability by considering leaf nitrogen content and local acclimation to radiation in grapevine (Vitis vinifera L.)
Prieto, Jorge Alejandro; Louarn, Gaëtan; Perez Peña, Jorge Esteban; Ojeda, Hernan; Simonneau, Thierry; Lebon, Eric (Wiley, 2012-07)Understanding the distribution of gas exchange within a plant is a prerequisite for scaling up from leaves to canopies. We evaluated whether leaf traits were reliable predictors of the effects of leaf ageing and leaf ... -
Carbohydrate reserve status of Malbec grapevines after several years of regulated deficit irrigation and crop load regulation
Dayer, Silvina; Prieto, Jorge Alejandro; Galat Giorgi, Mirta Eugenia; Perez Peña, Jorge Esteban (Wiley, 2013-10)Background and Aims: Regulated deficit irrigation (RDI) and bunch thinning are two viticultural practices applied worldwide. There is limited knowledge, however, about their combined effects on carbohydrate dynamics and ... -
Changes in leaf stomatal conductance, petiole hydraulics and vessel morphology in grapevine (Vitis vinífera cv.Chasselas) under different light and irrigation regimes
Dayer, Silvina; Perez Peña, Jorge Esteban; Gindro, Katia; Torregrosa, Laurent; Voinesco, Francine; Martinez, Liliana; Prieto, Jorge Alejandro; Zufferey, Vivian (2017)Hydraulic conductance and water transport in plants may be affected by environmental factors, which in turn regulate leaf gas exchange, plant growth and yield. In this study, we assessed the combined effects of radiation ... -
Condiciones para que la incorporación de energía solar en viñedos sea una opción económica y ambientalmente sostenible: caso de estudio de Mendoza, Argentina
Palazzo, Lucia Romina; Perez Peña, Jorge Esteban; Acosta, Gabriela Lourdes; Pizzolon Battistoni, Pierina Natacha (Asociación Argentina de Energías Renovables y Ambientales (ASADES), 2021-12)El objetivo del trabajo fue analizar las condiciones económicas-financieras y técnicas-productivas bajo las cuales la incorporación de energía solar para riego en viñedos es sostenible. Para esto se consideró una finca con ... -
High temperature during the budswell phase of grapevines increases shoot water transport capacity
Galat Giorgi, Mirta Eugenia; Keller, Markus; Sadras, Victor Oscar; Roig Junent, Fidel Alejandro; Perez Peña, Jorge Esteban (Elsevier, 2020-09)Knowledge about heat acclimation in perennial plants is limited. Our hypotheses were (i) that high temperature during budswell before budbreak elicits acclimation in grapevines that is mediated by greater water transport ... -
Identity and parentage of some South American grapevine cultivars present in Argentina
Aliquo, Gustavo; Torres, Maria Del Rocio; Lacombe, Thierry; Boursiquot, Jean-Michel; Laucou, Valerie; Gualpa, Jose Luis; Fanzone, Martín Leandro; Sari, Santiago Eduardo; Perez Peña, Jorge Esteban; Prieto, Jorge Alejandro (2017)Background and Aims: Based on 19 nuclear simple sequence repeat markers and parental analysis, we aimed to identify and propose the pedigree of different accessions held at the Estación Experimental Agropecuaria Mendoza ... -
Interactive effects of high temperature and water deficit on Malbec grapevines
Galat Giorgi, Mirta Eugenia; Sadras, Victor Oscar; Keller, Markus; Perez Peña, Jorge Esteban (Wiley, 2019-06-26)Background and Aims: Studies of the interactive effects of drought and high temperature on the physiological responses of grapevines (Vitis spp.) are scarce. We tested whether well‐watered, potted vines were able to avoid ... -
Late pruning modifies leaf to fruit ratio and shifts maturity period, affecting berry and wine composition in Vitis vinífera L. cv. ‘Malbec’ in Mendoza, Argentina
Bustos Morgani, Marianela; Fanzone, Martín Leandro; Perez Peña, Jorge Esteban; Sari, Santiago Eduardo; Gallo, Agustina Eugenia; Gómez Tournier, Mariana Belén; Prieto, Jorge Alejandro (Elsevier, 2023-04)Higher temperatures in recent years have advanced berry ripening and harvest date, decoupling berry sugar accumulation of anthocyanins final concentration and therefore reducing wine potential color. Late pruning is proposed ... -
Leaf carbohydrate metabolism in Malbec grapevines : combined effects of regulated déficit irrigation and crop load
Dayer, Silvina; Prieto, Jorge Alejandro; Galat Giorgi, Mirta Eugenia; Perez Peña, Jorge Esteban (2016)Background and aims: Regulated deficit irrigation and crop load adjustment are viticultural practices used to improve grape and wine composition. Our objective was to evaluate the combined effect of irrigation and crop ... -
Mechanisms underlying photosynthetic acclimation to high temperature are different between Vitis vinifera cv. Syrah and Grenache
Gallo, Agustina Eugenia; Perez Peña, Jorge Esteban; Prieto, Jorge Alejandro (CSIRO Publishing, 2020-12-07)Photosynthesis acclimation to high temperature differs among and within species. Grapevine intra-specific variation in photosynthetic acclimation to elevated temperature has been scarcely assessed. Our objectives were ... -
Non‐structural carbohydrates and sugar export in grapevine leaves exposed to different light regimes
Dayer, Silvina; Murcia, Germán; Prieto, Jorge Alejandro; Durán, Martin; Martinez, Liliana; Piccoli, Patricia Noemí; Perez Peña, Jorge Esteban (Wiley, 2020-11)Light is a main environmental factor that determines leaf microclimate within the vine, as well as its photosynthesis and carbohydrate metabolism. This study aimed to examine the relationships between photosynthesis, ... -
Photosynthetic acclimation to high temperature in Syrah and Grenache
Gallo, Agustina Eugenia; Perez Peña, Jorge Esteban; Prieto, Jorge Alejandro (Science & Wine, CV, Lda, 2021-03-28)The main objective of this study was to evaluate (i) the mechanisms underlying the long-term acclimation of photosynthesis to elevated temperature and (ii) to determine whether these responses are similar among Syrah and ... -
Pruning after budburst delays phenology and affects yield components, crop coefficient and total evapotranspiration in Vitis vinífera L. cv. ‘Malbec’ in Mendoza, Argentina
Bustos Morgani, Marianela; Perez Peña, Jorge Esteban; Fanzone, Martín Leandro; Prieto, Jorge Alejandro (Elsevier, 2022-02-23)Late pruning is a field technique that has recently been proposed to mitigate the advance in phenology produced by global warming. However, contrasting effects have been observed depending on the cultivar and the date of ... -
Syrah and Grenache (Vitis vinifera) revealed different strategies to cope with high temperature
Gallo, Agustina Eugenia; Perez Peña, Jorge Esteban; Gonzalez, Carina Verónica; Prieto, Jorge Alejandro (Australian Society of Viticulture and Oenology, 2022-03-02)Background and Aims: Global warming will threaten vineyard sustainability in warm and arid regions. Therefore, increasing water use efficiency (WUE) is essential for long-term viticulture sustainability. Nevertheless, ...