Physiological improvements of young olive tree ( Olea europaea L. cv. Chetoui) under short term irrigation with treated wastewater

Hassena, Ameni Ben; Zouari, Mohamed; Trabelsi, Lina; Khabou, Wahid; Zouari, Nacim

doi:10.1016/j.agwat.2018.05.024

Cited by 30 publications

(24 citation statements)

References 31 publications

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“…Increase in the content of total chlorophyll and chlorophyll a and b in sandy loam soil due to increased concentration of TW in the irrigation water ( Figure 2) may be related to photosynthetic behavior ( Figure 1) and accumulation of N and Mg in millet leaves (Figure 3), chemical elements related to chlorophyll synthesis in plants (Taiz;Zeiger, 2013). Comparatively, these results are similar to those reported by Helaly et al (2018) andBen Hassena et al (2018), who observed that wastewater irrigation positively influenced the content of total chlorophyll in mango trees (Mangifera indica L.) and olive trees (Olea europaea L. cv. Chetoui), respectively.…”

Section: Resultssupporting

confidence: 91%

“…Plants irrigated with TW may present variable responses due to the availability of nutrients and salts in wastewater, plant species and irrigation period (Ben Hassena et al, 2018;Khawla et al, 2019). In this study, the increase in Pn, Gs and E due to increasedconcentration of TW in the irrigation water may be related to a greater accumulation of nutrients in millet leaves (Figure 3).…”

Section: Resultsmentioning

confidence: 65%

“…Increase in the concentration of TW in the irrigation water increased the gas exchange variables (Pn, Gs and E), especially in treatments with 75 and 100% TW (Figure 1). The TW contained considerable amounts of nutrients (Table 1) considered essential for photosynthetic activity, stomatal regulation and chlorophyll synthesis of the plants (Ben Hassena et al, 2018;Taiz;Zeiger, 2013;Tekaya et al, 2016). In the literature, the use of wastewater in irrigation is associated with increased photosynthetic performance and transpiration of plants (Ben Hassena et al, 2018;Corbel et al, 2016;Iqbal et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…The TW contained considerable amounts of nutrients (Table 1) considered essential for photosynthetic activity, stomatal regulation and chlorophyll synthesis of the plants (Ben Hassena et al, 2018;Taiz;Zeiger, 2013;Tekaya et al, 2016). In the literature, the use of wastewater in irrigation is associated with increased photosynthetic performance and transpiration of plants (Ben Hassena et al, 2018;Corbel et al, 2016;Iqbal et al, 2015). This increase is usually related to the fact that wastewater is a rich source of nutrients and organic matter (Aman et al, 2018;Iqbal et al, 2015;Monnett;Reneau Jr;Hagedorn, 1996).…”

Section: Resultsmentioning

confidence: 99%

“…Lower demand for fresh water, nutrient recycling and reduced in the discharge of pollutants in water bodies are potential benefits of the use of treated wastewater (TW) in the irrigation of agricultural crops (Hanjra et al, 2012). Studies relate TW irrigation to increase in biomass and photosynthetic capacity; improvement in mineral status; and reduction in fertilizer application rates in several crops (Ben Hassena et al, 2018;Demir;Tekaya et al, 2016), including pastures (Dube et al, 2018). Furthermore, Ali-Shtayeh et al (2018) observed that the use of TW in irrigation does not affect the yield and chemical composition of crops used in the production of essential oils.…”

Section: Introductionmentioning

confidence: 99%

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Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

et al. 2019

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Wastewater can be considered an excellent nutritional and water source for cultivated plants. However, the presence of high concentrations of salts and toxic compounds can negatively affect crops. The effect of irrigation with different concentrations of treated wastewater on the accumulation of nutrients and gas exchange aspects of millet (Pennisetum glaucum (L.) R. Br.) grown in clay soil and sandy loam soil was analyzed. This study was conducted in a greenhouse (16°40’57,50” S; 43°50’26,07” O; 650 m) in a 5 x 2 factorial design, consisting of five levels of concentration of treated wastewater (0, 25, 50, 75, and 100%), combined with two types of soil (clay and sandy loam). The experiment was designed in randomized blocks with four replicates. The increase in treated wastewater concentration in irrigation water applied to clay soil and sandy loam soil favored the increase of net photosynthesis, transpiration rate, stomatal conductance, leaf chlorophyll content and accumulation of macro- and micronutrients in millet plants. Millet plants grown in clay soil showed an average increase of 23% in gas exchange capacity and 71% in accumulation of macro- and micronutrients, when compared with treatments in sandy loam soil. Therefore, treated wastewater contributes to the increase in gas exchange capacity and greater accumulation of nutrients in millet plants, which represents an alternative for reduced demand for fresh water and use of chemical fertilizers.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

et al. 2019

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Assessment and cost analysis of mycoremediated textile effluent for irrigation

Rajhans,

Sen,

Pallavi

et al. 2024

Irrigation and Drainage

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In the current study, mycoremediated textile effluents were used for irrigation in a cultivation system to promote resource recycling and cost‐effective spinach production. The raw textile effluents from two different textile mills were decolorized by 93.2 and 94.5%, respectively, as well as mineralized by the immobilized novel fungus Geotrichum candidum. Subsequently, both the treated effluents, treated textile effluent 1 (TTE1) and treated textile effluent 2 (TTE2), were used to cultivate spinach. The results indicated that irrigation with TTE1 and TTE2 resulted in ~9% higher spinach yields compared with the control. Moreover, the water use efficiency with the TTE1 and TTE2 treatments was ~1.2 times better than that with the control. The need for fertilizers in the case of spinach cultivation with treated effluents was compensated by the textile effluents as a result of the breakdown and mineralization of the effluent by immobilized G. candidum. Notably, the energy content, dietary fiber and protein content of spinach irrigated with mycoremediated textile effluent were substantially elevated, with values of 34 kcal/100 g−1, 3.4 g 100 g−1 and 6.92 g 100 g−1, respectively. The preliminary cost analysis indicated that the costs of the whole process (from treatment to irrigation) were approximately US$0.35‐0.38 m−3 (INR 28.22–30.45 m−3) of textile effluent. The study concluded that the mycoremediated textile effluent could be efficiently applied for agronomic usages.

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Field study of irrigation strategies with treated wastewater and saline water on heavy metal accumulation in barley grain

Shahidi,

Khashei‐Siuki,

Bagheri

et al. 2023

Water Environment Research

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This study examines the effects of three irrigation regimes with a combination of saline water and treated wastewater on the accumulation of heavy metals in barley grains. A field experiment was designed as a split‐split plot arrangement in a randomized complete block design, in which treatments were different irrigation regimes (50, 70 and 100% full irrigation) and irrigation water types (saline water (SW), treated wastewater (TW), mixed water resources (MWR) and alternative irrigation (AI)). After cultivation and harvesting of the barley crop, the grain yield, 1000‐grain weight and contents of heavy metals in the grains were measured. The grain yield was enhanced by TW alone, MWR and AI to 12.8, 5 and 9.5% under 70%‐deficit irrigation, and 58.3, 21.7 and 8.7% under full irrigation, respectively. Based on the guidelines for safe limits of heavy metals in edible plants and livestock feed, the barley grains were safe for livestock and toxic for humans. The trend of heavy metal contents in the grains was Fe>Zn>Pb>Cu≥Cr>Cd. Irrigation with saline water compared to treated wastewater increased Fe, Cu, Zn, Pb, Cd and Cr contents in the grains to 11.75, 10.97, 5.22, 19.15, 3.45 and 9.21%, respectively. The amounts of toxic elements of Cd and Pb were maximized by using MWR, while the Cr content in the grain was maximized by using AI. There were no significant difference in the metal uptake by the grains among all irrigation regimes in any irrigation water resource. However, compared to the other irrigation regimes, the full irrigation resulted in lower Zn, Cu and Cd contents, while the 50%‐deficit irrigation led to lower Pb and Cr contents in the grains. Therefore, irrigation with TW is recommended based on the grain yield, while AI is suggested due to lower Cu, Pb and Cd contents in the grain, and MWR is recommended due to lower Cr content. Furthermore, full and 50%‐deficit irrigation regimes are recommended to respectively maximize grain yield and minimize the toxic metal contents in the grain.

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Physiological improvements of young olive tree ( Olea europaea L. cv. Chetoui) under short term irrigation with treated wastewater

Cited by 30 publications

References 31 publications

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

Assessment and cost analysis of mycoremediated textile effluent for irrigation

Field study of irrigation strategies with treated wastewater and saline water on heavy metal accumulation in barley grain

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