Impact of deficit irrigation on water use efficiency and carbon isotope composition (δ13C) of field-grown grapevines under Mediterranean climate

Souza, C. R. de; Marôco, João; Santos, Tiago P.; Rodrigues, Marcelo; Lopes, Carlos M.; Pereira, J. S.; Chaves, M. M.

doi:10.1093/jxb/eri216

Cited by 109 publications

(85 citation statements)

References 26 publications

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“…The >3.00 per mil difference in δ 13 C observed between juice of RR and NRR vines is a relatively large treatment separation compared to published studies with grape (Gómez-Alonso and García-Romero 2010). As did other studies (Chaves et al 2007, de Souza et al 2005, we found greater amplitude of treatment effects on δ 13 C with berry juice than with leaf laminae. In the latter case, the midshoot leaves that we sampled had fully developed by bloom and their structural carbon was essentially fixed at that point.…”

Section: Discussionsupporting

confidence: 88%

“…The δ 13 C values reported here are similar to those determined in studies where water availability to grapevines was regulated to impose a range of water stress (Chaves et al 2007, de Souza et al 2005 or where natural soil types afforded a range of plant available water levels (Van Leeuwen et al 2009). While RR caused a pronounced reduction in the discrimination against 13 C, UTCC did not.…”

Section: Discussionsupporting

confidence: 75%

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Cover Crop, Rootstock, and Root Restriction Regulate Vegetative Growth of Cabernet Sauvignon in a Humid Environment

Hatch¹,

Hickey²,

Wolf³

2011

Am. J. Enol. Vitic.

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Cover crops, rootstocks, and root restriction were evaluated as means to regulate vegetative growth of Cabernet Sauvignon grapevines in a humid environment. Treatments were arranged as a strip-split-split plot with row-middle and under-trellis cover crop (UTCC) compared to row-middle only cover crop combined with 85 cm weed-free strips in the vine row as main plots. Rootstocks Riparia Gloire (Riparia), 420A, and 101-14 were subplots, while sub-subplots comprised two treatments: vines were either planted in root-restrictive (RR) fabric bags (0.015 m 3 ) at vineyard establishment or were planted without root restriction. Root restriction and UTCC were independently effective in suppressing vegetative development as measured by rate and seasonal duration of shoot growth, lateral shoot development, trunk circumference, and dormant pruning weights. Riparia was the most effective rootstock in limiting vegetative development among the three evaluated; vines grafted to Riparia had ~25% lower cane pruning weights than did vines grafted to 420A or 101-14. Under-trellis cover crop reduced cane pruning weights by 47% relative to vines grown on herbicide strips. Canopy architecture was generally improved by both UTCC and by root restriction, but generally unaffected by rootstock. Root restriction reduced the discrimination against 13 C assimilation in both berries and leaf laminae tissue as measured by δ 13 C, while under-trellis floor management did not affect this measure of chronic water stress. The principal direct effect of the UTCC and the root-restriction treatments was a sustained reduction in stem (xylem) water potential (ψ stem ). Stomatal conductance and net assimilation rate were depressed by increasing water deficit, particularly for root-restricted vines. Results suggest practical measures can be used to create a more favorable vine balance under conditions of variable rainfall, such as exist in the eastern United States.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 75%

Cover Crop, Rootstock, and Root Restriction Regulate Vegetative Growth of Cabernet Sauvignon in a Humid Environment

Hatch¹,

Hickey²,

Wolf³

2011

Am. J. Enol. Vitic.

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“…Additionally, Bainskloof was also the site where species had high WUE, again indicating it as a more drought-stressed environment, despite its intermediate stream flow regime. A similar result was found with Vitis vinefera where some sites were significantly more water-use efficient than others, promoted by a deficit in water availability (De Souza et al 2005).…”

Section: Dutoitskloofsupporting

confidence: 81%

Drought-tolerance of an invasive alien tree, Acacia mearnsii and two native competitors in fynbos riparian ecotones

2011

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Invasive alien plants (IAPs) have successfully invaded many riparian zones in South Africa, especially Australian Acacia spp. which are prevalent along riverbanks in the south-western Cape of South Africa. This Mediterranean-type climate region is predicted to endure severe future water shortages under likely scenarios of increased population growth and climate change, and IAPs aggravate this problem due to their profligate water use. Acacia mearnsii competes aggressively with native species, however, it remains unclear what physiological advantage the species has over co-occurring native species under the predicted reduced streamflow scenarios. A mechanistic approach was used to investigate how key native fynbos riparian woody tree species compare in vulnerability to drought-induced cavitation against A. mearnsii by comparing findings from three Mediterranean-type fynbos river systems that differ in streamflow. A. mearnsii showed lower water potential at 50% hydraulic conductivity loss (P 50 values) compared to native species at certain sites, an indication of drought-tolerance. This suggests it is likely to persist under future drier conditions and it therefore remains a top priority for control. The native Brabejum stellatifolium had consistently higher water potentials across all sites than the other studied species, and is a potentially valuable species for restoration of south-western Cape riparian zones. Consistency in the shapes of species vulnerability curves across sites illustrated a species-specific hydraulic response to different water availability, strengthening the argument that this approach to distinguish site-level drought-tolerance between trees is a practical technique, with great application in understanding future geographic distribution under climate change, and potential for use in restoration research. Additionally, streamflow was an inaccurate predictor of species drought-tolerance along these riparian systems.

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“…The volumetric water content of the soil shows significant differences among treatments, especially in 2010 and 2012, although the degree of soil moisture does not entirely conform to the degree of stress on the Soil-plant water stress integral and relationships with productivity S Ψ is presented as a useful tool for differentiating among treatments for any of the variables studied (Table 4), which is consistent with the results of De Souza et al (2005) in cvs. 'Moscatel' and 'Castelão' and Ginestar et al (1998a,b) in cv.…”

supporting

confidence: 81%

“…He established a methodology for assessing the cumulative effect of water deficit (WD) on the stress-intensity of crops through the 'water stress integral' (S Ψ ). The application of this method to Vitis vinifera (L.) evaluates the effects of water stress on production and the relationship of water stress to vine-water status indicators (Ginestar et al, 1998a,b;De Souza et al, 2005;Salón et al, 2005;De la Hera et al, 2007;Martínez et al, 2007, Dayer et al, 2012. Baeza et al (2007) consider that S Ψ provides a faster method and may be a good parameter for explaining the long-term response of vines to water deficit with relation to yield or must composition.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Impact of water stress and nutrition on Vitis vinifera cv. ‘Albariño’: Soil-plant water relationships, cumulative effects and productivity

Martínez

Rey

Fandiño

et al. 2016

Span. j. agric. res.

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The objective of the present study is to apply different systems of fertigation (rainfed, R; surface drip irrigation, DI, and subsurface drip irrigation, SDI) in Vitis vinifera (L.) cv. ‘Albariño’ to evaluate the cumulative effect of water stress (water stress integral) on yield parameters and to establish the relationship between indices and production. The study was conducted over four years (2010-2013) in a commercial vineyard (Galicia, NW Spain). The volumetric soil water content (θ) (with TDR) and predawn (ψp), midday (ψm) and stem (ψstem) leaf-water potential were determined with a water activity meter during the growing stages (flowering-harvest) from 2010-2013. The number of clusters, their weight and yield/vine were determined at harvest. Must composition was studied to evaluate nutrition treatments. Ψp is presented as the best indicator of the water status of the plant, and the sole use of θ is not recommended as a reference. The soil-plant water status variables were strongly correlated, especially between foliar variables (0.91<R2<0.98), with θ presenting the lowest reliability (0.28<R2<0.81). SDI was the treatment with the highest hydric comfort and greater yield/vine (6.1 kg) and weight per cluster (95.0 g), but lower elements concentration in must. The water stress integral showed that the veraison and harvest stages were very sensitive to water stress in vines. Linear relationships were established between Sψp and W (R2=0.65) and Y (R2=0.56) at veraison. The water stress integral is presented as a useful working tool for vine growers because it allows the prediction of future yield at early phenological states.

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Impact of deficit irrigation on water use efficiency and carbon isotope composition (δ13C) of field-grown grapevines under Mediterranean climate

Cited by 109 publications

References 26 publications

Cover Crop, Rootstock, and Root Restriction Regulate Vegetative Growth of Cabernet Sauvignon in a Humid Environment

Cover Crop, Rootstock, and Root Restriction Regulate Vegetative Growth of Cabernet Sauvignon in a Humid Environment

Drought-tolerance of an invasive alien tree, Acacia mearnsii and two native competitors in fynbos riparian ecotones

Impact of water stress and nutrition on Vitis vinifera cv. ‘Albariño’: Soil-plant water relationships, cumulative effects and productivity

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