Fostering sustainable water use in almond (<i>Prunus dulcis</i> Mill.) orchards in a semiarid Mediterranean environment

García-Tejero, Iván Francisco; Gutiérrez-Gordillo, Saray; Souza, L. B. de; Cuadros-Tavira, Simón; Zuazo, Víctor Hugo Durán

doi:10.1080/03650340.2018.1492113

Cited by 18 publications

(27 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reference evapotranspiration (ET 0 ) and rainfall during the irrigation period (March-October) amounted to 1102 and 326 mm for 2018, meanwhile, in the second year ET 0 and rainfall were 1221 and 85 mm, respectively. Crop evapotranspiration (ET C ) rates for both seasons averaged 860 mm, which was in line with previous reports by López-López et al [28] or García-Tejero et al [11] who estimated water requirements of 800 and 900 mm for mature almond trees in Guadalquivir river basin.…”

Section: Experimental Sitesupporting

confidence: 91%

“…In addition, according to Fernández et al [34] and Fu et al [35], the almond has a lower capability to regulate the stoma under mild water stress situations. Moreover, these findings corroborate with those revealed by García-Tejero et al [11] who defined two threshold values for Ψ leaf ; the first about −1.4 MPa without reductions for g s , and a second of −2.0 MPa, when significant depletions in g s are observed. Also, other authors reported that under moderate water stress conditions the almond tree decreased the leaf rates much more than g s , and only when a certain threshold value is reached, significant depletions on photosynthesis rates are detected [36][37][38].…”

Section: Physiological Response To Water Stresssupporting

confidence: 91%

“…RDI and SDI are the most studied strategies; the first one, characterized by applying a smaller amount of water in that period in which the crop is less sensitive to this withholding of water [9], whereas SDI consists of applying a sustained water reduction throughout the growth cycle [10]. Very promising results have been obtained when LFDI is applied during the kernel-filling period, without yield losses even under long-term experiences [11]. This DI strategy consists of applying irrigation-restriction cycles which are derived by means of physiological threshold values previously defined.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cultivar Dependent Impact on Yield and Its Components of Young Almond Trees under Sustained-Deficit Irrigation in Semi-Arid Environments

et al. 2020

Self Cite

View full text Add to dashboard Cite

Almond (Prunus dulcis Mill. (D.A. Webb)) plantations in irrigated semi-arid areas need to successfully face the new scenarios of climate change combining sustainable irrigation strategies and tolerant cultivars to water stress. This work examines the response of young almond (cvs. Guara, Marta, and Lauranne) subjected to different irrigation doses under semi-arid conditions (South-West Spain). The trial was conducted during two seasons (2018–2019) with three irrigation strategies: A full-irrigated treatment (FI), which received 100% of the irrigation requirements (IR), and two sustained-deficit irrigation strategies that received 75% (SDI75) and 65% (SDI65) of IR. Crop water status was assessed by leaf water potential (Ψleaf) and stomatal conductance (gs) measurements, determining the yield response at the end of each season. Different physiological responses for the studied cultivars were observed, especially considering the Ψleaf measurements. In this way, cv. Marta behaved more tolerant, while cvs. Guara and Lauranne maintained higher gs rates in response to water stress. These differences were also observed in terms of yield. The cv. Lauranne did not reflect yield losses, and the opposite trend was observed for cv. Guara, in which reductions on fruit numbers per tree were detected. On overall, effective irrigation water savings (≈2100 m3·ha−1 in SDI65) could be feasible, although these responses are going to be substantially different, depending on the used cultivar.

show abstract

Section: Experimental Sitesupporting

confidence: 91%

Section: Physiological Response To Water Stresssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cultivar Dependent Impact on Yield and Its Components of Young Almond Trees under Sustained-Deficit Irrigation in Semi-Arid Environments

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…This fact was discussed by Eichi [ 27 ], reporting that g s is a physiological measurement that is more affected by climatic conditions. For this reason, finding significant relationships between thermal indicators and this parameter was not possible, and something similar was reported by García-Tejero et al [ 26 ] in mature almond trees, for measurements that were taken at midday. This constraint has been related to the anhisohydric pattern of almond when this crop is subjected to water stress situations.…”

Section: Discussionmentioning

confidence: 64%

“…To date, many works have been oriented to test the different strategies of image analysis and capturing, which have resulted in the development of effective protocols for field measurements based on the use of different thermal indices [ 16 , 24 , 25 , 26 ] and robust relationships between thermal information and plant physiological parameters. However, one of the main limitations that is linked to this technique is the necessity in comparing the obtained measurements with other physiological variables, in order to confirm if the information reported in terms of thermal data is in accordance to the crop-water status.…”

Section: Discussionmentioning

confidence: 99%

Assessing the Crop-Water Status in Almond (Prunus dulcis Mill.) Trees via Thermal Imaging Camera Connected to Smartphone

García-Tejero

Ortega-Arévalo

Iglesias-Contreras

et al. 2018

Sensors

Self Cite

View full text Add to dashboard Cite

Different tools are being implemented in order to improve the water management in agricultural irrigated areas of semiarid environments. Thermography has been progressively introduced as a promising technique for irrigation scheduling and the assessing of crop-water status, especially when deficit irrigation is being implemented. However, an important limitation is related to the cost of the actual cameras, this being a severe limitation to its practical usage by farmers and technicians. This work evaluates the potential and the robustness of a thermal imaging camera that is connected to smartphone (Flir One) recently developed by Flir Systems Inc. as a first step to assess the crop water status. The trial was developed in mature almond (Prunus dulcis Mill.) trees that are subjected to different irrigation treatments. Thermal information obtained by the Flir One camera was deal with the thermal information obtained with a conventional Thermal Camera (Flir SC660) with a high resolution, and subsequently, confronted with other related plant physiological parameters (leaf water potential, Ψleaf, and stomatal conductance, gs). Thermal imaging camera connected to smartphone provided useful information in estimating the crop-water status in almond trees, being a potential promising tool to accelerate the monitoring process and thereby enhance water-stress management of almond orchards.

show abstract

Correlation between water stress and phenolic compounds of hydroSOStainable almonds

et al. 2020

View full text Add to dashboard Cite

BACKGROUND Water scarcity is currently affecting many areas of the world, reaching worrying levels in drought areas such as southern Spain. To cope with this issue, researchers in the agricultural sector have implemented deficit irrigation strategies intended to reduce water consumption by increasing fruit quality. Almond is among the most popular tree nuts worldwide and also the most nut cultivated in Spain. Almond consumption, together with other nuts, has been widely associated with improvements in cardiovascular health, metabolic syndrome and diabetes owing to their bioactive compounds such as polyphenols. Water deficit strategies generate hydroSOStainable almonds, raised under water stress conditions, with high content of bioactive compounds. The aim of this work was to study the relationship between water stress, color and polyphenols in hydroSOStainable almonds. For this, instrumental color, total phenolic content and phenolic compounds were measured and correlated using Pearson's correlation. RESULTS The results showed a strong relationship between water stress, color and polyphenols of almonds, showing that increasing water stress in plants up to ~100 MPa × day values of stress integral increase the polyphenols in almonds, leading to a reddish color. CONCLUSION Finally, this research demonstrated that implementing water‐saving strategies help to improve the phenolic content and color of hydroSOStainable almonds and also that isorhamnetin‐3‐O‐rutinoside, isorhamnetin‐3‐O‐glucoside and kaempferol‐3‐O‐glucoside could be important markers of hydroSOStainable almonds (cv. Vairo). Besides, hydroSOStainable almonds could be an important source of phenols, providing 25% of the estimated total polyphenolic daily intake. © 2020 Society of Chemical Industry

show abstract

Fostering sustainable water use in almond (Prunus dulcis Mill.) orchards in a semiarid Mediterranean environment

Cited by 18 publications

References 52 publications

Cultivar Dependent Impact on Yield and Its Components of Young Almond Trees under Sustained-Deficit Irrigation in Semi-Arid Environments

Cultivar Dependent Impact on Yield and Its Components of Young Almond Trees under Sustained-Deficit Irrigation in Semi-Arid Environments

Assessing the Crop-Water Status in Almond (Prunus dulcis Mill.) Trees via Thermal Imaging Camera Connected to Smartphone

Correlation between water stress and phenolic compounds of hydroSOStainable almonds

Contact Info

Product

Resources

About