1
|
Yu R, Torres N, Tanner JD, Kacur SM, Marigliano LE, Zumkeller M, Gilmer JC, Gambetta GA, Kurtural SK. Adapting wine grape production to climate change through canopy architecture manipulation and irrigation in warm climates. FRONTIERS IN PLANT SCIENCE 2022; 13:1015574. [PMID: 36311062 PMCID: PMC9616007 DOI: 10.3389/fpls.2022.1015574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Grape growing regions are facing constant warming of the growing season temperature as well as limitations on ground water pumping used for irrigating to overcome water deficits. Trellis systems are utilized to optimize grapevine production, physiology, and berry chemistry. This study aimed to compare 6 trellis systems with 3 levels of applied water amounts based on different replacements of crop evapotranspiration (ETc) in two consecutive seasons. The treatments included a vertical shoot position (VSP), two modified VSPs (VSP60 and VSP80), a single high wire (SH), a high quadrilateral (HQ), and a Guyot pruned VSP (GY) combined with 25%, 50%, and 100% ETc water replacement. The SH had greater yields, whereas HQ was slower to reach full production potential. At harvest in both years, the accumulation of anthocyanin derivatives was enhanced in SH, whereas VSPs decreased them. As crown porosity increased (mostly VSPs), berry flavonol concentration and likewise molar % of quercetin in berries increased. Conversely, as leaf area increased, total flavonol concentration and molar % of quercetin decreased, indicating a preferential arrangement of leaf area along the canopy for overexposure of grape berry with VSP types. The irrigation treatments revealed linear trends for components of yield, where greater applied water resulted in larger berry size and likewise greater yield. 25% ETc was able to increase berry anthocyanin and flavonol concentrations. Overall, this study evidenced the efficiency of trellis systems for optimizing production and berry composition in Californian climate, also, the feasibility of using flavonols as the indicator of canopy architecture.
Collapse
Affiliation(s)
- Runze Yu
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Nazareth Torres
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Justin D. Tanner
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Sean M. Kacur
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Lauren E. Marigliano
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Maria Zumkeller
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Joseph Chris Gilmer
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Gregory A. Gambetta
- Ecophysiologie et genomique fonctionnelle de la vigne (EGFV), Bordeaux Sciences Agro, Institut national de la recherche agronomique (INRAE), Université de Bordeaux, Institue des sciences de la vigne et du vin (ISVV), Villenave d’Ornon, France
| | - Sahap Kaan Kurtural
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| |
Collapse
|
2
|
Shifts in the phenolic composition and aromatic profiles of Cabernet Sauvignon (Vitis vinifera L.) wines are driven by different irrigation amounts in a hot climate. Food Chem 2022; 371:131163. [PMID: 34583184 DOI: 10.1016/j.foodchem.2021.131163] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/31/2021] [Accepted: 09/14/2021] [Indexed: 11/22/2022]
Abstract
Wine final color, taste and aroma are closely related to the accumulation of secondary metabolites that may be affected by deficit irrigation applied in viticulture. A two-year study was conducted to assess the different fractions of crop evapotranspiration (ETc) irrigation replacement on wine composition, addressing the analysis of flavonoids and volatiles under context of global warming. Irrigating with 100% ETc (full grapevine demand) enhanced wine hue, antioxidant capacity, and some aromas; however, it came with a diminution of flavonoids and a less stable flavonoid profile. Replacing 25 and 50% ETc in wine grape improved wine color intensity, concentration of flavonoids, and shifted the aromatic profiles. These treatments increased some terpenes and esters which may enhance the desirable aromas for Cabernet Sauvignon, and decreased C6 alcohols related to unpleasant ones. Therefore, despite the warming trends in Mediterranean climates, 100% ETc irrigation would be not advisable to improve or maintain wine quality, and 50% ETc was sufficient.
Collapse
|
3
|
Herrera JC, Calderan A, Gambetta GA, Peterlunger E, Forneck A, Sivilotti P, Cochard H, Hochberg U. Stomatal responses in grapevine become increasingly more tolerant to low water potentials throughout the growing season. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:804-815. [PMID: 34797611 DOI: 10.1111/tpj.15591] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 11/08/2021] [Accepted: 11/15/2021] [Indexed: 05/27/2023]
Abstract
The leaf of a deciduous species completes its life cycle in a few months. During leaf maturation, osmolyte accumulation leads to a significant reduction of the turgor loss point (ΨTLP ), a known marker for stomatal closure. Here we exposed two grapevine cultivars to drought at three different times during the growing season to explore if the seasonal decrease in leaf ΨTLP influences the stomatal response to drought. The results showed a significant seasonal shift in the response of stomatal conductance to stem water potential (gs ~Ψstem ), demonstrating that grapevines become increasingly tolerant to low Ψstem as the season progresses in coordination with the decrease in ΨTLP . We also used the SurEau hydraulic model to demonstrate a direct link between osmotic adjustment and the plasticity of gs ~Ψstem . To understand the possible advantages of gs ~Ψstem plasticity, we incorporated a seasonally dynamic leaf osmotic potential into the model that simulated stomatal conductance under several water availabilities and climatic scenarios. The model demonstrated that a seasonally dynamic stomatal closure threshold results in trade-offs: it reduces the time to turgor loss under sustained long-term drought, but increases overall gas exchange particularly under seasonal shifts in temperature and stochastic water availability. A projected hotter future is expected to lower the increase in gas exchange that plants gain from the seasonal shift in gs ~Ψstem . These findings show that accounting for dynamic stomatal regulation is critical for understanding drought tolerance.
Collapse
Affiliation(s)
- Jose Carlos Herrera
- Institute of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Alberto Calderan
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Gregory A Gambetta
- EGFV, Bordeaux-Sciences Agro, INRAE, Université de Bordeaux, ISVV, Villenave d'Ornon, France
| | - Enrico Peterlunger
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Astrid Forneck
- Institute of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Paolo Sivilotti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Herve Cochard
- INRAE, PIAF, Université Clermont-Auvergne, Clermont-Ferrand, 63000, France
| | - Uri Hochberg
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, Bet-Dagan, Israel
| |
Collapse
|
4
|
Torres N, Yu R, Martínez-Lüscher J, Kostaki E, Kurtural SK. Effects of Irrigation at Different Fractions of Crop Evapotranspiration on Water Productivity and Flavonoid Composition of Cabernet Sauvignon Grapevine. FRONTIERS IN PLANT SCIENCE 2021; 12:712622. [PMID: 34539704 PMCID: PMC8440997 DOI: 10.3389/fpls.2021.712622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/06/2021] [Indexed: 05/31/2023]
Abstract
Climate change models predict lower precipitation and higher air temperatures that will negatively affect viticultural regions. Irrigation of vineyards will be crucial for mitigating abiotic stress during the growing season. However, the environmental impact of irrigation requires consideration for ensuring its sustainability in the future. We evaluated the standard irrigation practices on grapevine water use efficiency, berry flavonoid composition, vineyard water footprint, and arbuscular mycorrhizal fungi-grapevine symbiosis in two seasons with contrasting amounts of precipitation. The irrigation treatments consisted of weekly replacement of 25, 50, and 100% of crop evapotranspiration (ETc) during two growing seasons. Irrigation in grapevine vineyards mitigated the water scarcity when precipitation during the dormant season was not sufficient. The results provided field data supporting that despite the low rainfall recorded in one of the seasons, increasing the amount of irrigation was not advised, and replacing 50% ETc was sufficient. In this treatment, berry composition was improved with increased contents of total soluble solids, anthocyanins, and flavonols, and a stable flavonoid profile without an economic decrease in yield. In addition, with 50% ETc, the mycorrhizal symbiosis was not compromised and water resources were not highly impacted. Altogether, our results provide fundamental knowledge for viticulturists to design an appropriate irrigation schedule under the future warming scenarios with minimal environmental impact in semi-arid regions facing warming trends.
Collapse
Affiliation(s)
- Nazareth Torres
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
- Department of Agronomy, Biotechnology and Food Science, Public University of Navarra, Pamplona, Spain
| | - Runze Yu
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Johann Martínez-Lüscher
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
- Semios Biotechnologies Toronto, Toronto, ON, Canada
| | - Evmorfia Kostaki
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Sahap Kaan Kurtural
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| |
Collapse
|
5
|
Martínez-Lüscher J, Kurtural SK. Same Season and Carry-Over Effects of Source-Sink Adjustments on Grapevine Yields and Non-structural Carbohydrates. FRONTIERS IN PLANT SCIENCE 2021; 12:695319. [PMID: 34381481 PMCID: PMC8350779 DOI: 10.3389/fpls.2021.695319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 05/25/2021] [Indexed: 06/02/2023]
Abstract
The grapevine (Vitis vinifera L.) is managed to balance the ratio of leaf area (source) to fruit mass (sink). Over cropping in the grapevine may reveal itself as spontaneous fruit abortion, delayed ripening, or as alternate bearing. The aim of this work was to study the same season and carry-over effects of manipulating source to sink ratios on grapevine phenology, leaf gas exchange, yield components, berry soluble solids accumulation, and reserve carbohydrate and soluble sugar concentration in roots. Cabernet Sauvignon grapevines were subjected to defoliation (33, 66, and 100% of the leaves retained) and fruit removal treatments (33, 66, and 100% of clusters retained) arranged in a factorial design. Results from two seasons of source-sink manipulations were substantially different. In both seasons defoliation treatments affected season-long net carbon assimilation (A N ) and stomatal conductance (g s ) where the less leaves were retained, the greater the A N and g s , and fruit removal had no impact on leaf gas exchange. In the first season, leaf area to fruit mass was hardly related to berry soluble solids and in the second season they were strongly correlated, suggesting a degree of acclimation. Defoliation treatments had great impacts on berry size, berries per cluster, and total soluble solids in both years. Fruit removal treatments only had effects on berry mass and berries per cluster in the first season, and only on berry soluble solids in the second. The predominant effect of defoliation (carbon starvation) cascaded onto reducing root starch content, root mass and delaying of veraison and leaf senescence, as well as harvest which was delayed up to 9 weeks with 33% of the leaves retained. In a third season, where grapevines grew without treatments, defoliation treatments had resultant carryover effects, including reduced leaf area, number of berries per cluster, clusters per vine, and yield, but not on leaf gas exchange dependent on previous seasons' severity of defoliation. Balancing source-to-sink ratio is crucial to obtain an adequate speed of ripening. However, this was the culmination of a more complex whole-plant regulation where the number of leaves (source strength) outweighed the effects of fruits (sink strength).
Collapse
|
6
|
Torres N, Yu R, Kurtural SK. Inoculation with Mycorrhizal Fungi and Irrigation Management Shape the Bacterial and Fungal Communities and Networks in Vineyard Soils. Microorganisms 2021; 9:1273. [PMID: 34207954 PMCID: PMC8230719 DOI: 10.3390/microorganisms9061273] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/05/2022] Open
Abstract
Vineyard-living microbiota affect grapevine health and adaptation to changing environments and determine the biological quality of soils that strongly influence wine quality. However, their abundance and interactions may be affected by vineyard management. The present study was conducted to assess whether the vineyard soil microbiome was altered by the use of biostimulants (arbuscular mycorrhizal fungi (AMF) inoculation vs. non-inoculated) and/or irrigation management (fully irrigated vs. half irrigated). Bacterial and fungal communities in vineyard soils were shaped by both time course and soil management (i.e., the use of biostimulants and irrigation). Regarding alpha diversity, fungal communities were more responsive to treatments, whereas changes in beta diversity were mainly recorded in the bacterial communities. Edaphic factors rarely influence bacterial and fungal communities. Microbial network analyses suggested that the bacterial associations were weaker than the fungal ones under half irrigation and that the inoculation with AMF led to the increase in positive associations between vineyard-soil-living microbes. Altogether, the results highlight the need for more studies on the effect of management practices, especially the addition of AMF on cropping systems, to fully understand the factors that drive their variability, strengthen beneficial microbial networks, and achieve better soil quality, which will improve crop performance.
Collapse
Affiliation(s)
| | | | - S. Kaan Kurtural
- Department of Viticulture and Enology, University of California Davis, 1 Shields Avenue, Davis, CA 95616, USA; (N.T.); (R.Y.)
| |
Collapse
|