Water harvesting techniques for improving soil water content, and morpho-physiology of pistachio trees under rainfed conditions

Tadros, Maher J.; Al-Mefleh, Naji K.; Othman, Yahia A.; Al-Assaf, Amani

doi:10.1016/j.agwat.2020.106464

Cited by 16 publications

(10 citation statements)

References 34 publications

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“…High demand for water due to the growth in population coupled with frequent drought during the last decades has encouraged governments to adopt new innovations to ensure the sustainable management of water resources, such as water harvesting and the reuse of waste-and greywater for agriculture, such as landscaping [1,2]. The use of wastewater for irrigation might present negative effects, especially environmental contamination and toxicity [3].…”

Section: Introductionmentioning

confidence: 99%

“…Wastewater contains toxic microorganisms and heavy metals, such as chromium (Cr), cadmium (Cd), nickel (Ni), lead (Pb), and mercury (Hg), which can induce severe risks to plant, human, and the environment [3]. However, rainwater harvesting, greywater recycling, and hybrid rainwater-greywater systems are less harmful to the environment and can mitigate urban water scarcity at both domestic residential dwelling and commercial building scales [1,4]. The hybrid rainwater harvesting-greywater systems had the highest mains water savings (55.3%), lowest environmental impact, and was the second-fastest system to become financially effective at USD 5.20 m −3 (rainwater harvesting, USD 2.00 m −3 ) when compared to centralized mains water system [4].…”

Section: Introductionmentioning

confidence: 99%

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An Assessment of Treated Greywater Reuse in Irrigation on Growth and Protein Content of Prosopis and Albizia

et al. 2021

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This study investigated the influence of treated greywater on growth and protein content of multipurpose (forage and ornamental) transplants, Prosopis juliflora L., Prosopis tamarugo L., and Albizia lebbeck L. Transplants of tested species were irrigated with treated greywater, diluted greywater (grey + distilled water, 1:1/by volume), and distilled water (control) for seven months. Water quality analysis showed that the concentrations of nutrients and heavy metals found in the greywater were within the acceptable range compared with Jordan Institution for Standard and Metrology (JISM) and the World Health Organization (WHO) thresholds for safe use of greywater. Escherichia coli found in the greywater were lower compared to JISM and WHO guidelines for the safe use of greywater. Irrigation with treated greywater increased shoot fresh weight by 24–39% and dry weight by 34–40% compared to diluted greywater and control. No significant difference in crude protein was noticed between water treatments. Prosopis species (P. juliflora Albizia lebbeck L. and P. tamarugo Albizia lebbeck L.) had higher shoot fresh (35%) and dry weight the same species had lower crude protein (44%) when compared to Albizia lebbeck Albizia lebbeck L. The reuse of treated greywater for landscaping or forage production alleviates the demand for water resources and reduces the pressure on wastewater treatment plants. However, considering the controversial findings of previous studies on greywater quality (especially, long-term reuse), the reuse of treated greywater needs to be considered with caution and periodic quality analyses and economic assessments are required.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Assessment of Treated Greywater Reuse in Irrigation on Growth and Protein Content of Prosopis and Albizia

et al. 2021

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“…Photosynthesis plays a key role in plant growth, development and productivity and can be significantly affected by management practices such as irrigation, nutrients and hormonal application (Othman et al, 2014;Tadros et al, 2021;Wen et al, 2018). In addition, chlorophyll content in the leaves is critical because these pigments provide the required reaction energy for the photosynthesis process by absorbing energy from the light (Wen et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Influence of gibberellic acid on the physiology and flower quality of gerbera and lily cut flowers

Othman

Al-Ajlouni²,

A’saf³

et al. 2021

IJANR

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The objective of this study was to assess the influence of different foliar gibberellic acid (GA3) levels (0, 10, 50, and 200 mg L-1) and application timing on the growth, physiology (chlorophyll and gas exchange) and flower quality of gerbera (Gerbera jamesonii cvs. Beaudine and Palm Beach) and Asiatic lily (Lilium × elegans cvs. Fangio and Eldivo). The application of GA3 (50 mg L-1) increased (p < 0.05) gerbera shoot height (30%), pedicel length (20%), and vase life (12.5%) and decreased the number of days to flowering (7%) compared to the control. GA3 application at the seedling stage increased pedicel length and flower diameter compared to GA3 treatment at the flower initiation stage. However, the chlorophyll content index, photosynthesis (Pn), stomatal conductance (gs) and transpiration (E) were similar across the study period. For Asiatic lily, 10 and 50 mg L-1 were the best GA3 levels in terms of leaf gs, E and flower diameter. Compared to 0, 10 and 50 mg L-1-GA3, 200 mg L-1-GA3 decreased the number of days to flowering. Overall, the application of 50 mg L-1-GA3 to gerbera and lily cultivars at the seedling stage can potentially improve flower quality and shorten the number of days to flowering.

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“…Gas exchange ( Pn, g s, and E ) was measured using a portable photosynthesis system (LI-6400XT; LI-COR, Lincoln, NE, USA) following the procedures of Othman et al [ 41 ]. Leaf-level gas exchange measurements were carried out between 11:00 a.m. and 1:00 p.m. on sun-exposed and fully matured leaves (2 leaves per replicate, two measurement per growing season) [ 42 , 43 ]. Light intensity was set to track ambient photosynthetically active radiation, area of chamber head to 6 cm 2 , flow rate to 500 μmol s −1 , temperature in the cuvette to ambient air and reference CO 2 to 390 μmol.…”

Section: Methodsmentioning

confidence: 99%

Direct Seeding and Transplanting Influence Root Dynamics, Morpho-Physiology, Yield, and Head Quality of Globe Artichoke

Leskovar

Othman

2021

Plants

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The objective of this two-year field study was to assess the influence of stand establishment methods (direct seeding or transplanting) on root growth dynamics, shoot morphology, leaf physiology, yield, and quality of globe artichoke (Cynara cardunculus). Three artichoke cultivars were evaluated, ‘Green Globe Improved’ (GGI), ‘Imperial Star’ (IS), and ‘Romolo’ (ROM). Plants established with the transplanting method had higher mean root length intensity (La), root length, and root surface area as compared to plants established by direct seeding. The topsoil (0–20 cm) had on average higher La, root length, and root surface area than deeper soil profiles. Transplanted plants had higher plant shoot width and leaf area index (LAI) chlorophyll content index (SPAD) than direct seeded plants at the vegetative stage in 2015. The improvement of root and shoot growth in transplants (compared to direct seeding) also resulted in higher (p < 0.05) marketable yield (21.1 vs. 19.9 ton ha−1 in 2015 and 18.3 vs. 13.7 ton ha−1 in 2016). Additionally, 46–50% of the total yield occurred during the first 30 days of harvest in the transplanting method compared to 13–38% for direct seeding. No significant differences were found between planting methods or cultivars in leaf-level gas exchange (photosynthesis, stomatal conductance, and transpiration) and cynarin concentration in the marketable heads. Although chlorogenic acid was similar in both establishment methods in 2015, direct seeding had higher concentration in 2016. Comparing cultivars, GGI had higher root length, surface area, root volume, and earlier and higher marketable yield than ROM. However, ROM had higher mean root length intensity (La; total root length per specific area in soil profile) than GGI in both growing seasons. This study showed significant and consistent improvements in root and shoot traits, and yield for transplants as compared to direct seeded plants.

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Water harvesting techniques for improving soil water content, and morpho-physiology of pistachio trees under rainfed conditions

Cited by 16 publications

References 34 publications

An Assessment of Treated Greywater Reuse in Irrigation on Growth and Protein Content of Prosopis and Albizia

An Assessment of Treated Greywater Reuse in Irrigation on Growth and Protein Content of Prosopis and Albizia

Influence of gibberellic acid on the physiology and flower quality of gerbera and lily cut flowers

Direct Seeding and Transplanting Influence Root Dynamics, Morpho-Physiology, Yield, and Head Quality of Globe Artichoke

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