Evapotranspiration changes with irrigation using saline groundwater and RO concentrate

Flores, Alison M.; Shukla, Manoj K.; Daniel, David L.; Ulery, April; Schutte, Brian J.; Picchioni, Geno A.; Fernald, Sam

doi:10.1016/j.jaridenv.2016.04.003

Cited by 19 publications

(23 citation statements)

References 25 publications

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“…Khan and Glenn [17] reported higher variability in LFs of triticale species. Flores et al [10] reported that triticale had the lowest LF of all the halophytes, but produced some of the highest dry biomass, which is similar to our findings and seems to suggest that triticale has a mechanism to combat "physiological drought" caused by salinity stress [39].…”

Section: Water Balance Parameterssupporting

confidence: 90%

“…In a study by Malek et al [19], irrigation with saline wastewater from an electrical power plant increased ET and yield of alfalfa. Flores et al [10], in a study on triticale, reported higher ET and no decrease in biomass with increasing salinity up to 8 dSm −1 . Ozturk et al [20] showed similar results for triticale in their study, where ET increased and no differences were observed in biomass with increasing salinity.…”

Section: Introductionmentioning

confidence: 92%

“…Agronomy 2019, 9, x FOR PEER REVIEW 5 of 17 significant differences were obtained for most parameters between the two runs, data for both runs were combined by species for ANOVA. oResults were modeled using a general linear model [10].…”

Section: Greenhouse Meteorological Datamentioning

confidence: 99%

“…Previous studies have reported RO concentrate reuse for growing salt-tolerant species such as × Triticosecale, Atriplex canescens, Hordeum vulgare, Lepidium alyssoides, Distichlis stricta, and Panicum virgatum [10]. There are certain species that have a natural ability to germinate, grow, and survive under high salt concentrations [11] and can be grown for various purposes [12], including as a salt substitute in animal fodder.…”

Section: Introductionmentioning

confidence: 99%

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Growth, Evapotranspiration, and Ion Uptake Characteristics of Alfalfa and Triticale Irrigated with Brackish Groundwater and Desalination Concentrate

et al. 2019

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Persistent drought, low snowfall, and low rainfall have reduced availability of fresh water for irrigating agricultural crops in many arid and semi-arid regions of the world. Brackish groundwater (electrical conductivity; EC > 3 dSm−1) is increasingly used for irrigation in New Mexico. This study investigates the effect of ion uptake from brackish groundwater and concentrate irrigation on the performance of two forage species, alfalfa (Medicago sativa) and triticale (×Triticosecale), in sand soils in greenhouse conditions. Two simultaneous experiments were run for 90 days using tap water (control; 0.7 dSm−1), brackish groundwater (BGW; 4 dSm−1), reverse osmosis concentrate (RO; 8 dSm−1, Ca2+ dominant), and BGW plus sodium chloride (BGW + NaCl; 8 dSm−1, Na+ dominant). BGW + NaCl irrigation significantly reduced the evapotranspiration (ET) of both the species. Deep percolation (DP) increased significantly with RO and BGW + NaCl irrigation in alfalfa but only with BGW + NaCl irrigation in triticale. Alfalfa plant growth decreased with increasing salinity, while triticale plants followed an opposite trend. ET continued to decrease with increasing salinity for both species. Na+ dominant (BGW + NaCl) irrigation produced robust growth and early flowering and ear head formation in triticale. Na+ ion concentration in shoots was above 0.66%, which led to reduced alfalfa growth, while more than 1.22% did not decrease triticale growth or biomass. Increased Ca2+ sequestration in alfalfa played a crucial role in reducing Na+ ion toxicity. Species performance primarily confirmed that alfalfa is moderately salt-tolerant while triticale is confirmed to be a halophyte producing abundant growth and biomass with higher Na+ uptake. Triticale proved to be a promising species for reuse of RO concentrate for agriculture in marginal lands.

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Section: Water Balance Parameterssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 92%

Section: Greenhouse Meteorological Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Growth, Evapotranspiration, and Ion Uptake Characteristics of Alfalfa and Triticale Irrigated with Brackish Groundwater and Desalination Concentrate

et al. 2019

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“…Therefore, soil salinity measurements must precede implementation of water-saving irrigation regimes (Reina-Sánchez et al, 2005). Increases in the duration of droughts have necessitated the use of lower quality groundwater to supplement irrigation in semi-arid regions (Flores et al, 2016, 2017; Baath et al, 2017). Understanding plant responses to coupled abiotic stresses of water and salinity, and the underlying mechanisms of improving WUE from leaf to whole plant scale, would be useful to stabilize crop performance and production under drought and saline conditions in a changing climate.…”

Section: Introductionmentioning

confidence: 99%

Interactive Regimes of Reduced Irrigation and Salt Stress Depressed Tomato Water Use Efficiency at Leaf and Plant Scales by Affecting Leaf Physiology and Stem Sap Flow

et al. 2019

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Interactive effects of reduced irrigation and salt stress on leaf physiological parameters, biomass accumulation, and water use efficiency (WUE) of tomato plants at leaf and whole plant scales were investigated in a field experiment during 2016 and a greenhouse experiment during 2017. Experiment utilized two irrigation regimes (full, 2/3 of full irrigation) and four soil salt regimes (0, 0.3, 0.6, 0.9% in 2016 season; and 0, 0.2, 0.3, 0.4% in 2017 season). Three salts, sodium chloride, magnesium sulfate, and calcium sulfate (mass ratio of 2:2:1), were homogeneously mixed with soil prior to packing into containers (0.024 m 3 ). Li-COR 6400 was used to measure tomato leaf physiological parameters. Instantaneous water use efficiency (WUE ins , μmol mmol −1 ) and intrinsic water use efficiency (WUE int , μmol mol −1 ) were determined at leaf scale, yield water use efficiency (WUE Y , g L −1 ), and dry biomass water use efficiency (WUE DM , g L −1 ) were determined at whole plant scale. Plants irrigated with 2/3 of full irrigation with zero soil-salt treatment had higher dry biomass and yield per plant, resulting in the highest WUE DM and WUE Y at whole plant scale. Increasing soil salinity decreased dry biomass and yield, leading to greater decreases in whole plant WUE DM and WUE Y under both irrigation treatments. At full irrigation, no decreases in stomatal conductance (g s , mol m −2 s −1 ) and slight increase in photosynthetic rate (P n , μmol m −2 s −1 ) led to higher WUE int at leaf scale during both years. Under full and reduced irrigation, increasing soil salt content decreased P n and transpiration rate (T r , mmol m −2 s −1 ) and led to reductions in WUE ins at the leaf scale. However, compared to full irrigation, reduced irrigation improved WUE ins with a significant decline in T r in no salt and 0.3% soil-salt treatments during both years. For soil salt content of 0.6%, stomatal limitation due to salt stress resulted in higher WUE int , but soil salt content of 0.9% decreased WUE int due to non-stomatal limitation. Soil salt content significantly decreased sap flow, with the maximum variation of daily sap flow per plant of 7.96–31.37 g/h in 2016 and 12.52–36.02 g h −1 in 2017. Sap flow rate was linearly related to air temperature (T a , °C), solar radiation (R s , W m ...

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Root growth, architecture, and ion uptake of alfalfa and triticale irrigated with brackish groundwater and reverse osmosis concentrate

Kankarla

Shukla

Picchioni

2021

Agrosystems Geosci & Env

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Soil salinity is a major environmental constraint for agricultural production, especially in arid and semiarid regions of the world. Salts in irrigation water and soil can potentially harm plant root growth. To date, more research has been devoted to aboveground biomass production. This study is aimed at determining the impacts of irrigating with brackish groundwater (BGW) and reverse osmosis (RO) concentrate on the root and shoot biomass, root/shoot ratio (R:S), and root system architecture (RSA) of alfalfa (Medicago sativa L.) and triticale (× Triticosecale Wittm. ex A. Camus). Two replicated experiments were conducted in the Fabian Garcia Science Center (FGSC) greenhouse from 7 Oct. 2017 to 7 Jan. 2018 in Las Cruces, NM, USA. After 90 d, roots were scanned using a WinRHIZO image analysis system and the data were analyzed. In both the species, RO and BGW + NaCl increased root Na + and Clconcentrations. Triticale behaved more like a root Na-retaining species than alfalfa but with an associated decrease in total root biomass. Irrigation with BGW in alfalfa increased root length and the number of forks and crossings, whereas RO irrigation increased root length density (RLD). Unlike alfalfa, triticale root architectural parameters were largely unaffected by salinity. However, RO and BGW + NaCl waters promoted significantly (p ≤ .05) higher shoot biomass in triticale than the control and BGW alone. Our findings recommend BGW for alfalfa irrigation, and triticale as a potential future forage crop for dry and saline conditions. INTRODUCTIONSoil salinity is recognized as a critical problem in arid and semiarid regions of the world (Ladeiro, 2012). Globally, 4 million km 2 of land is affected by natural salinization, and >75 million km 2 is affected by human-induced salinization

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Evapotranspiration changes with irrigation using saline groundwater and RO concentrate

Cited by 19 publications

References 25 publications

Growth, Evapotranspiration, and Ion Uptake Characteristics of Alfalfa and Triticale Irrigated with Brackish Groundwater and Desalination Concentrate

Growth, Evapotranspiration, and Ion Uptake Characteristics of Alfalfa and Triticale Irrigated with Brackish Groundwater and Desalination Concentrate

Interactive Regimes of Reduced Irrigation and Salt Stress Depressed Tomato Water Use Efficiency at Leaf and Plant Scales by Affecting Leaf Physiology and Stem Sap Flow

Root growth, architecture, and ion uptake of alfalfa and triticale irrigated with brackish groundwater and reverse osmosis concentrate

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