A water stress index based on water balance modelling for discrimination of grapevine quality and yield

Gaudin, Rémi; Kansou, Kamal; Payan, Jean-Christophe; Pellegrino, Anne; Gary, Christian

doi:10.20870/oeno-one.2014.48.1.1655

Cited by 11 publications

(13 citation statements)

References 8 publications

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“…The complex implementation of cover crops in such water balance models has been carried out successfully (Celette et al, 2010) and has been used to simulate vine water stress indices for non-irrigated conditions (Gaudin et al, 2014). However, under irrigated conditions, implementation of cover crops in water balance models remains challenging due to complex interactions between soil management practices and the distribution of grapevine root systems (Linares Torres et al, 2018).…”

Section: Water Balance Methodsmentioning

confidence: 99%

State-of-the-art of tools and methods to assess vine water status

Rienth¹,

Scholasch²

2019

OENO One

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Rising global air temperatures will lead to an increased evapotranspiration and altered precipitation pattern. In many regions this may result in a negative water balance during the vegetative cycle, which can augment the risk of drought and will require mitigation strategies. These strategies, ultimately, will mean the installation of irrigation systems in some winegrowing regions where vines were cultivated historically under rain-fed conditions and growers do not have many years of experience with vine water management.This review aims to provide a state-of-the-art summary of the recent and most important literature on vine water assessment for monitoring and adapting vineyard management strategies to production goals in view of global warming. Plant, soil and atmospheric methods are reviewed, and their advantages and drawbacks are discussed. Recent advances in plant water status measurement reveal the limitation of traditional techniques such as water potential, particularly in the context of drought and high vapor pressure deficit and the discoveries regarding hydraulic and stomatal regulation. New technologies can integrate heterogeneous sources of information collected in the vineyard at different spatial and temporal resolutions. Such new approaches offer new synergies to overcome limitations inherent to plant water status measurement techniques obtained directly or indirectly from proxy measurements.

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Section: Water Balance Methodsmentioning

confidence: 99%

State-of-the-art of tools and methods to assess vine water status

Rienth¹,

Scholasch²

2019

OENO One

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“…Both excessive water availability and severe water stress can alter berry development and the resulting wine quality. On the one hand, grapevine should experience a moderate water stress after the flowering stage to limit grapevine vegetative development and control the formation of grape yield and quality (Deloire et al, 2004;Gaudin et al, 2014;Pellegrino et al, 2006). On the other hand, over intense water stress may jeopardize grape yield at year n but also at year n+1 (Fourie, 2011;Guilpart et al, 2014).…”

Section: Landscape Aestheticsmentioning

confidence: 99%

Management of service crops for the provision of ecosystem services in vineyards: A review

Garcia

Celette

Gary

et al. 2018

Agriculture, Ecosystems & Environment

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192

116

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Service crops are crops grown with the aim of providing non-marketed ecosystem services, i.e. differing from food, fiber and fuel production. Vineyard soils face various agronomic issues such as poor organic carbon levels, erosion, fertility losses, and numerous studies have highlighted the ability of service crops to address these issues. In addition to their ability to increase soil organic matter and fertility, and reduce runoff and erosion processes, service crops provide a large variety of ecosystem services in vineyards such as weed control, pest and disease regulation, water supply, water purification, improvement of field trafficability and maintenance of soil biodiversity. However, associating service crops with grapevines may also generate disservices and impair grape production: competition for soil resources with the grapevine is often highlighted to reject such association. Consequently, vinegrowers have to find a balance between services and disservices, depending on local soil and climate conditions, on their objectives of grape production and on the nature and temporality of the ecosystem services they expect during the grapevine cycle. This study proposes a review of the services and disservices provided by service crops in vineyards, and a framework for their management. Vinegrowers' production objectives and pedoclimatic constraints form the preliminary stage to consider before defining a strategy of service crop management. This strategy assembles management options such as the choice of species, its spatial distribution within the vineyard, the timing of its installation, maintenance and destruction. These management options, defined for both annual and long-term time scales, form action levers which may impact cropping system functioning. Finally, we underline the importance of implementing an adaptive strategy at the seasonal time scale. Such tactical management allows adapting the cropping system to observed climate and state of the biophysical system during the grapevine cycle, in order to provide targeted services and achieve satisfactory production objectives.

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“…Many studies have shown that the dynamic of the grapevine water status determines the grape yield as well as grape quality at harvest (van Leeuwen et al, 2004;Deloire et al, 2005;Pellegrino et al, 2006;Gaudin et al, 2014b). When soil water content measurements are possible, the grapevine water status can be defined by the fraction of transpirable soil water (FTSW) (Lebon et al, 2003;van Leeuwen et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Linking the transpirable soil water content of a vineyard to predawn leaf water potential measurements

Gaudin

Roux

Tisseyre

2017

Agricultural Water Management

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A new expression of the time derivative of predawn leaf water potential was proposed by equalizing two expressions of the grapevine transpiration. This expression was established when transpiration is the only driver of the vineyard water balance. Under Mediterranean climate, this condition is met for long periods of drought i.e. most of the summer time under the hypothesis that there is no water movement (capillary rise) from the deep layers of the soil. The proposed approach showed that changes in predawn leaf water potential ( pd) values are in inverse relation with the Total Transpirable Soil Water (TTSW) which characterizes the maximal water stock of the soil and in direct relation with reference evapotranspiration (ET o) and the basal crop coefficient (k cb) of the vine. The relation between  pd changes and cumulated ET o is linear with a slope related to the ratio of "k cb to TTSW". This ratio can be therefore estimated from field measurements and climatic data. This approach was tested on two year observations performed by Acevedo-Opazo et al. (2010) in vineyards cultivated with cv. Shiraz and Mourvedre, without any irrigation. Analysis of the data obtained in 49 sites per vineyard for several dates in the very dry summers of 2003 (Shiraz) and 2005 (Mourvedre) showed strong and significant adjustments of the model. These results proved the linear relationship between the sum of ET o and  pd. For each site of the vineyard, the approach demonstrated the possibility to provide site-specific estimates of the ratio of k cb to TTSW. This theoretical and practical development could have applications for water management and soil studies in Mediterranean vineyards.

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A water stress index based on water balance modelling for discrimination of grapevine quality and yield

Cited by 11 publications

References 8 publications

State-of-the-art of tools and methods to assess vine water status

State-of-the-art of tools and methods to assess vine water status

Management of service crops for the provision of ecosystem services in vineyards: A review

Linking the transpirable soil water content of a vineyard to predawn leaf water potential measurements

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