Assessment of the water stress effects on peach fruit quality and size using a fruit tree model, QualiTree

Mirás-Avalos, José Manuel; Alcobendas, Rosalía; Alarcón, Juan José; Valsesia, Pierre; Génard, Michel; Nicolás, Emilio

doi:10.1016/j.agwat.2013.06.008

Cited by 33 publications

(19 citation statements)

References 47 publications

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“…In our trials, after a decrease in 60% of the water supply throughout plant growth, we observed on average reduced plant vigor and yield, while fruit quality was improved or stable depending on whether metabolite concentrations were expressed relative to FM or DM. This antagonistic relationship between quality and yield performances confirmed the results obtained in RILs (Albert et al , 2016) and the tendencies reported by other authors in tomato (Guichard et al , 2001; Kirda et al , 2004; Zheng et al , 2013), peach (Mirás-Avalos et al , 2013), or grapevine (Santesteban and Royo, 2006). …”

Section: Discussionsupporting

confidence: 90%

Association mapping reveals the genetic architecture of tomato response to water deficit: focus on major fruit quality traits

Albert

Segura

Gricourt

et al. 2016

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Section: Discussionsupporting

confidence: 90%

Association mapping reveals the genetic architecture of tomato response to water deficit: focus on major fruit quality traits

Albert

Segura

Gricourt

et al. 2016

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“…One of the benefits of RDI is an improvement in fruit taste and quality due to increasing SSC (Mpelasoka et al, 2000;López et al, 2011;Mirás-Avalos et al, 2013). In the present study, SSC values increased in all years for the RDI treatment although this difference was significant only in 2008, when a higher level of water stress was observed.…”

Section: Discussioncontrasting

confidence: 41%

Effects of regulated deficit irrigation on physiology, yield and fruit quality in apricot trees under Mediterranean conditions

Pérez-Sarmiento

Mirás-Avalos

Alcobendas

et al. 2017

Span. j. agric. res.

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Scarce water resources mainly in arid and semi-arid areas have caused an increasing interest for applying irrigation protocols aiming to reduce water spends. The effects of regulated deficit irrigation (RDI) on the performance of apricot trees (Prunus armeniaca L. cv. "Búlida") were assessed in Murcia (SE Spain), during three consecutive growing seasons (2008)(2009)(2010). The hypothesis was that RDI would not restrict yield but increase fruit quality while saving water. Two irrigation treatments were established: i) control, irrigated to fully satisfy crop water requirements (100% ET c ) and ii) RDI, that reduced the amount of applied water to: a) 40% of ET c at flowering and stage I of fruit growth; b) 60% of ET c during the stage II of fruit growth and c) 50% and 25% of ET c during the late postharvest period (from 60 days after harvest). Stem water potential, gas exchanges, trunk cross-sectional area (TCSA), fruit diameter, yield and fruit quality traits were determined. Vegetative growth was decreased by the use of RDI (12% less TCSA on average for the three years), whereas yield was unaffected. In addition, some qualitative characteristics of the fruits, such as the level of soluble solids, sweetness/acidity relation and fruit colour, were improved by the use of RDI. These results and average water savings of approximately 30%, lead us to conclude that RDI strategies are a possible solution for irrigation management in areas with water shortages, such as arid and semi-arid environments.Additional keywords: fruit growth; photosynthesis; Prunus armeniaca L.; regulated deficit irrigation; stomatal conductance; water stress.

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“…A comprehensive description of QualiTree can be found in Lescourret et al ( 2011 , 2016 ). Parameters and validations for several peach cultivars are reported in Mirás-Avalos et al ( 2011 , 2013a , b ). A list of QualiTree inputs and outputs is provided in Supplementary Tables 1 , 2 .…”

Section: Methodsmentioning

confidence: 99%

“… Ranges of values for these parameters found in the literature are also shown. Ranges for the different parameters were taken from Harrison et al ( 1989 ), Lescourret and Génard ( 2005 ), Mirás-Avalos et al ( 2011 , 2013a , b ), and Wu et al ( 2012 ) . …”

Section: Methodsmentioning

confidence: 99%

“…QualiTree is a “source-sink” plant model that integrates an empirical function to simulate the impact of distances on assimilate allocation in a simplified representation of tree architecture. A previous version of this model described the within-tree variability of growth and fruit quality traits and was successfully calibrated and validated with experimental data (Mirás-Avalos et al, 2011 , 2013a , b ). In this version, water deficit affected vegetative growth indirectly through a reduced leaf photosynthesis and hence decreased production of carbohydrates but this was not enough to reproduce the strong decrease in vegetative growth observed in the field and caused by water stress.…”

Section: Introductionmentioning

confidence: 99%

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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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Assessment of the water stress effects on peach fruit quality and size using a fruit tree model, QualiTree

Cited by 33 publications

References 47 publications

Association mapping reveals the genetic architecture of tomato response to water deficit: focus on major fruit quality traits

Association mapping reveals the genetic architecture of tomato response to water deficit: focus on major fruit quality traits

Effects of regulated deficit irrigation on physiology, yield and fruit quality in apricot trees under Mediterranean conditions

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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