Differential effect of regulated deficit irrigation on growth and photosynthesis in young peach trees intercropped with grass

Forey, Oswaldo; Métay, Aurélie; Wéry, Jacques

doi:10.1016/j.eja.2016.09.006

Cited by 26 publications

(10 citation statements)

References 47 publications

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“…Soil and water status are essential information allowing farmers to manage water resources, by irrigation or service crop destruction for example. Using tensiometers within the rooting zone at various depths seems to be relevant to easily measure soil water dynamics, and trigger grapevine irrigation when risk of water stress is increasing (Forey et al, 2016). Model-based evaluations of water stress risk are interesting tools that could help monitor irrigation (Gaudin and Gary, 2012).…”

Section: Destructionmentioning

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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Section: Destructionmentioning

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

Self Cite

192

116

View full text Add to dashboard Cite

show abstract

“…The benefit obtained from intercropping is frequently attributed to niche complementarity and interspecific facilitation in resource use due to different temporal, spatial, or plant phenological/ eco-physiological characteristics [8][9][10][11]. Cultivation and farming system practices, including planting density of the component crops, fertilization and irrigation all influenced the degree of interspecific interactions (competition, complementarity and facilitation), the total yield performance and the relative contribution of the individual components [12][13][14][15][16][17][18]. Yields of crops in intercropping have been reported to fluctuate with component crop populations [17,[19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Impact of Increasing Maize Densities on Agronomic Performances and the Community Stability of Productivity of Maize/Peanut Intercropping Systems

Xia¹,

Wang²,

Xue³

et al. 2019

Agronomy

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Rational crop community structure plays an important role in maximizing the intercropping yield advantage. Effects of increasing maize densities in maize (Zea mays L.)/peanut (Arachis hypogaea L.) intercropping on yields and other agronomic traits, and the community stability of productivity were conducted across three different experimental sites. There were significant and positive correlations between maize densities and both maize grain/biomass yields and corresponding partial land equivalent ratios (LERs) across all three locations; but grain/biomass yields and partial LERs of peanut were all negatively correlated with maize densities in each or across all locations. LERs of grain yields averaged over three locations ranged from 0.89 to 0.98, while LERs of biomass yields ranged from 0.94 to 1.09 (>1.0 except for the maize inter-plant distance of 27 cm), indicating the intercropping advantage on biomass yields but not grain yields. Peanut had significantly lower kernel harvest indexes than those in monoculture. Excessive narrowing maize inter-plant distances reduced the community stability of productivity severely (especially for maize and total LERs) and are more likely to lead to abnormal maize and peanut plants. Therefore, a rational increase of maize densities in intercropping is suggested to keep the balance between maize and peanut and the comprehensive yield advantage.

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“…Water stress reduce plant vegetative growth and leaf photosynthesis (Hsiao, 1973 ; Harrison et al, 1989 ; Berman and DeJong, 1997 ; Chaves et al, 2002 ; Lampinen et al, 2004 ; Bryla et al, 2005 ; Girona et al, 2005 ; Shao et al, 2008 ; Muller et al, 2011 ; Tardieu, 2013 ; Rahmati et al, 2015a ) whereas a low water deficit could have no impact on photosynthesis yield and growth (Álvarez et al, 2009 ; Forey et al, 2016 ) or even have a beneficial effect if the water deficit is temporary and followed by rewatering (Zhao et al, 2015 ; Yi et al, 2016 ). Moreover, management practices such as regulated deficit irrigation (RDI) are based on inducing a mild water stress to the plants that stops vegetative growth but allows for maintaining or even increase yield while saving water (Scott Johnson and Handley, 2000 ).…”

Section: Introductionmentioning

confidence: 99%

Disentangling the Effects of Water Stress on Carbon Acquisition, Vegetative Growth, and Fruit Quality of Peach Trees by Means of the QualiTree Model

et al. 2018

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Climate change projections predict warmer and drier conditions. In general, moderate to severe water stress reduce plant vegetative growth and leaf photosynthesis. However, vegetative and reproductive growths show different sensitivities to water deficit. In fruit trees, water restrictions may have serious implications not only on tree growth and yield, but also on fruit quality, which might be improved. Therefore, it is of paramount importance to understand the complex interrelations among the physiological processes involved in within-tree carbon acquisition and allocation, water uptake and transpiration, organ growth, and fruit composition when affected by water stress. This can be studied using process-based models of plant functioning, which allow assessing the sensitivity of various physiological processes to water deficit and their relative impact on vegetative growth and fruit quality. In the current study, an existing fruit-tree model (QualiTree) was adapted for describing the water stress effects on peach (Prunus persica L. Batsch) vegetative growth, fruit size and composition. First, an energy balance calculation at the fruit-bearing shoot level and a water transfer formalization within the plant were integrated into the model. Next, a reduction function of vegetative growth according to tree water status was added to QualiTree. Then, the model was parameterized and calibrated for a late-maturing peach cultivar (“Elberta”) under semi-arid conditions, and for three different irrigation practices. Simulated vegetative and fruit growth variability over time was consistent with observed data. Sugar concentrations in fruit flesh were well simulated. Finally, QualiTree allowed for determining the relative importance of photosynthesis and vegetative growth reduction on carbon acquisition, plant growth and fruit quality under water constrains. According to simulations, water deficit impacted vegetative growth first through a direct effect on its sink strength, and; secondly, through an indirect reducing effect on photosynthesis. Fruit composition was moderately affected by water stress. The enhancements performed in the model broadened its predictive capabilities and proved that QualiTree allows for a better understanding of the water stress effects on fruit-tree functioning and might be useful for designing innovative horticultural practices in a changing climate scenario.

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Differential effect of regulated deficit irrigation on growth and photosynthesis in young peach trees intercropped with grass

Cited by 26 publications

References 47 publications

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

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

Impact of Increasing Maize Densities on Agronomic Performances and the Community Stability of Productivity of Maize/Peanut Intercropping Systems

Disentangling the Effects of Water Stress on Carbon Acquisition, Vegetative Growth, and Fruit Quality of Peach Trees by Means of the QualiTree Model

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