scholarly journals Yield and water use efficiency in 'Tommy Atkins' and 'Palmer' mango trees under localized irrigation with water deficit

2020 ◽  
Vol 41 (6) ◽  
pp. 2509-2522
Author(s):  
Marcelo Rocha dos Santos ◽  
◽  
Paulo Roberto Fernandes Cotrim Junior ◽  
Naasoom Luiz Santos Mesquita ◽  
Sérgio Luiz Rodrigues Donato ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Large Scale ◽  
Irrigation Management ◽  
Sprinkler Irrigation ◽  
Production Cycle ◽  
Full Irrigation ◽  
Use Efficiency

The increasing water demand of crops in response to climate change; the prospect of expanded irrigated areas; the population growth; and competition with multiple uses of water affect the availability of water resources for agriculture. Thus, measures are required that involve the adoption of irrigation-management strategies able to increase water savings without compromising crop yield, especially in semi-arid conditions, where water resources are limited, and in large-scale commercial cultivation such as in 'Tommy Atkins' and 'Palmer' mango, the second most widely grown irrigated fruit crop. The objective of this study was to examine the influence of irrigation systems (drip and micro-sprinkler) and deficit-irrigation strategies on the yield and water use efficiency (WUE) of 'Tommy Atkins' and 'Palmer' mango trees. The study was developed through two experiments conducted in the Irrigated Perimeter of Ceraíma, located in municipality of Guanambi - BA, Brazil. Two trials were carried out in a completely randomized design. For the 'Tommy Atkins' cultivar, 12 strategies were tested, involving regulated deficit irrigation (RDI) by micro-sprinkler irrigation and partial rootzone drying (PRD) by drip, in three production cycles. For ‘Palmer’ mango, 10 irrigation strategies were evaluated under the same previously described conditions, in only one production cycle. The reduction in water application in RDI was 25 and 50% of the crop evapotranspiration (ETc); and, in PRD, 20, 40 and 60% ETc. ‘Tommy Atkins’ mango achieved higher yields under micro-sprinkler irrigation with full irrigation and in the strategies involving the application of 50 and 75% ETc in stages II and III. These two strategies also provided greater WUE, along with PRD40. Water use efficiency was lower in the third evaluation cycle when compared with the first. ‘Palmer’ mango showed higher yields and WUE under drip irrigation, with the best yields achieved with full irrigation and in the strategies of PRD100, 80%, 60% and RDI with 50% ETc in stage III. The best WUE was obtained in PRD with 60 and 40% ETc.

scholarly journals Optimized Regulated Deficit Irrigation Management for Watermelon Cultivation in a Semiarid Region

2021 ◽  
Vol 9 (2) ◽  
pp. 113
Author(s):  
Kelly Nascimento Leite ◽  
Daniel Fonseca de Carvalho ◽  
Jose Maria Tarjuelo Martin- Benito ◽  
Geocleber Gomes de Sousa ◽  
Alfonso Dominguez Padilla
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Scarcity ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Control Treatment ◽  
Water Volume ◽  
Semiarid Region ◽  
Regulated Deficit Irrigation ◽  
Use Efficiency

The present study aimed to validate the MOPECO crop simulation model and to determine a viable irrigation management for watermelon in the semiarid region of Northeast Brazil, using methodologies of optimized regulated deficit irrigation (ORDI) and constant deficit irrigation (CDI). The experiment was carried out during October to December 2013 and the second one from July to August 2014 in plots of land of producers in the Baixo Acaraú Irrigated Perimeter – Ceará, Brazil. Treatments were characterized by ORDI management (70, 80, 90% ETa/ETm ratio) and CDI management along the entire cycle (70, 80 and 90% ETm) and control treatment, irrigated with 100% of the water requirement of the crop (ETm). In terms of saving of water resources, the results showed that management with regulated deficit irrigation leads to favorable and economically viable results for the farmer, of water saving, especially in a situation of severe water scarcity, irrigation management with regulated water deficit (ORDI) can provide favorable and economically viable results for the farmer. The highest value of WUE (41.8 kg m-3) was obtained with the treatment of lowest water volume applied (352.1 L) in the second experiment, decreasing with the increase in the water volume used. The ORDI methodology represents a better water use efficiency for all treatments of deficit applied compared to CDI treatments. The difference of ORDI and CDI methodology provided an increase of up to 200% in the gross margin obtained with the exploration of the watermelon culture which represents a range of R$ 986.00 in profit in a situation of water scarcity, as in the case of the studied region, the strategy with water supply of 70% of ETa/ETm ratio regulated by phenological stage was recommended in order to obtain highest water use efficiency.

scholarly journals Yield Response of Drip-Irrigated Onion under Full and Deficit Irrigation with Saline Water in Arid Regions of Tunisia

ISRN Agronomy ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
K. Nagaz ◽  
M. M. Masmoudi ◽  
N. Ben Mechlia
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Soil Salinity ◽  
Deficit Irrigation ◽  
Saline Water ◽  
Yield Response ◽  
Full Irrigation ◽  
Irrigation Regimes ◽  
Significant Difference ◽  
Use Efficiency

A two-year study was conducted in arid region of Tunisia to evaluate the effects of deficit irrigation regimes with saline water on soil salinity, yield, and water use efficiency of onion grown in a commercial farm on a sandy soil and drip-irrigated with water having an of 3.6 dS/m. Irrigation treatments consisted in water replacements of accumulated at levels of 100% (SWB-100, full irrigation), 80% (DI-80), 60% (DI-60), when the readily available water in the control treatment (SWB-100) is depleted, deficit irrigation during ripening stage (SWB100-MDI60) and farmer method corresponding to irrigation practices implemented by the local farmers. Results on onion production and soil salinization are globally coherent between the two-year experiments and show significant difference between irrigation regimes. Higher soil salinity was maintained in the root zone with DI-60 and farmer treatments than full irrigation (SWB-100). SWB100-MDI60 and DI-80 treatments resulted also in low values. No significant differences were observed in bulbs fresh and dry yields, bulbs number·ha−1 and weight from the comparison between full irrigation (SWB-100) and deficit treatments (DI-80, SWB100-MDI60). DI-60 irrigation treatment caused significant reductions in the four parameters considered in comparison with SWB-100. The farmer method caused significant reductions in yield components and resulted in increase of water usage 45 and 33% in 2008 and 2009, respectively. Water use efficiency was found to vary significantly among treatments, where the highest and the lowest values were observed for DI-60 and farmer treatments, respectively. The full irrigation (SWB-100) and deficit irrigation (DI-80 and SWB100-MDI60) strategies were found to be a useful practice for scheduling onion irrigation with saline water under the arid Mediterranean conditions of southern Tunisia.

scholarly journals Yield and Leaf Quality of Processing Spinach under Deficit Irrigation

HortScience ◽  
2005 ◽  
Vol 40 (6) ◽  
pp. 1868-1870 ◽  
Author(s):  
Daniel I. Leskovar ◽  
Giovanni Piccinni
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
High Water ◽  
Water Savings ◽  
Leaf Quality ◽  
Spinacea Oleracea ◽  
Use Efficiency ◽  
Irrigation Treatments

Restrictions placed on water usage for farmers have prompted the development of irrigation management projects aiming at water savings of economically important crops. The objective of this work was to determine yield, water use efficiency, and leaf quality responses to deficit irrigation rates of processing spinach (Spinacea oleracea L.) cultivars. Three irrigation treatments were imposed with a center pivot system, 100%, 75%, and 50% crop evapotranspiration rates (ETc). Commercial cultivars used were `DMC 09', `ASR 157', and `ACX 3665'. Leaf quality was significantly affected by deficit irrigation rate and cultivar. Leaf yellowness was highest at 50% ETc, and was more evident for `ACX 3665'. The percent excess stem (>10 cm) was higher at 100% ETc. This response was greater in `ACX 3665' than in `ASR 157' and `DMC 09'. Marketable yields were significantly higher for `ASR 157' at either 100% or 75% ETc rates, compared to `DMC 09' and `ACX 3665'. High water use efficiency was also measured at 75% ETc for `ASR 157'. Minimum canopy temperature differences were detected among the irrigation treatments. This work demonstrated that it is possible to reach a 25% water savings in one season, without reducing yields when using vigorous cultivars.

Effect of Regulated Deficit Irrigation on Yield and Water Use Efficiency of Processing Tomato (Solanum lycopersicum)

2013 ◽  
Vol 864-867 ◽  
pp. 2009-2012 ◽  
Author(s):  
Ya Mei Wang ◽  
Heng Jia Zhang
Keyword(s):  
Water Use Efficiency ◽  
Water Deficit ◽  
Water Use ◽  
Deficit Irrigation ◽  
Full Irrigation ◽  
Regulated Deficit Irrigation ◽  
Low Level ◽  
Processing Tomato ◽  
Irrigated Crops ◽  
Use Efficiency

An experiment was conducted to investigate the effect of regulated deficit irrigation (RDI) on yield and water use efficiency (WUE) of processing tomato in an arid climate. The results showed that crop yields of processing tomato were significantly (p<0.05) 11.0%~60.0% higher in the fully irrigated plots than RDI treatments except that subject to low level of RDI at seedling. When subject to RDI fruit number per plant, fruit weight, fruit longitudinal diameter and transverse diameter were the main components contributing to yield increase of processing tomato, while decayed fruit number was the key factor restraining tomato yield improvement. The WUE of processing tomato was significantly improved by 13.4% in RDI plants subject to low water deficit at seedling compared to full irrigation, but no difference (p>0.05) existed between fully irrigated crops and RDI plants subject to water deficit at seedling or late fruiting. However, in comparison with fully irrigated crops WUE was significantly reduced by 16.3%~23.3% in RDI plants subject to water deficits respectively at flowering and full fruiting as well as subject to high water deficit at late fruiting. Therefore, low level of RDI at seedling while full irrigation during flowering to late fruiting could be applied to effectively improve yield and WUE of processing tomato in arid areas.

scholarly journals Deficit Irrigation and Arbuscular Mycorrhiza as a Water-Saving Strategy for Eggplant Production

Horticulturae ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 45 ◽  
Author(s):  
M. A. Badr ◽  
W. A. El-Tohamy ◽  
S. D. Abou-Hussein ◽  
N. S. Gruda
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Fruit Yield ◽  
Physiological Status ◽  
Full Irrigation ◽  
Continuous Irrigation ◽  
Dry Biomass ◽  
Use Efficiency ◽  
Lower Tolerance

Crop production in arid regions requires continuous irrigation to fulfill water demand throughout the growing season. Agronomic measures, such as roots-soil microorganisms, including arbuscular mycorrhizal (AM) fungi, have emerged in recent years to overcome soil constraints and improve water use efficiency (WUE). Eggplant plants were exposed to varying water stress under inoculated (AM+) and non-inoculated (AM−) to evaluate yield performance along with plant physiological status. Plants grown under full irrigation resulted in the highest fruit yield, and there were significant reductions in total yield and yield components when applying less water. The decline in fruit yield was due to the reduction in the number of fruits rather than the weight of the fruit per plant. AM+ plants showed more favorable growth conditions, which translated into better crop yield, total dry biomass, and number of fruits under all irrigation treatments. The fruit yield did not differ between full irrigation and 80% evapotranspiration (ET) restoration with AM+, but a 20% reduction in irrigation water was achieved. Water use efficiency (WUE) was negatively affected by deficit irrigation, particularly at 40% ET, when the water deficit severely depressed fruit yield. Yield response factor (Ky) showed a lower tolerance with a value higher than 1, with a persistent drop in WUE suggesting a lower tolerance to water deficits. The (Ky) factor was relatively lower with AM+ than with AM− for the total fruit yield and dry biomass (Kss), indicating that AM may enhance the drought tolerance of the crop. Plants with AM+ had a higher uptake of N and P in shoots and fruits, higher stomatal conductance (gs), and higher photosynthetic rates (Pn), regardless of drought severity. Soil with AM+ had higher extractable N, P, and organic carbon (OC), indicating an improvement of the fertility status in coping with a limited water supply.

scholarly journals Impacts of Effects of Deficit Irrigation Strategy on Water Use Efficiency and Yield in Cotton under Different Irrigation Systems

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 231
Author(s):  
Hanan H. Shukr ◽  
Keith G. Pembleton ◽  
Andrew F. Zull ◽  
Geoff J. Cockfield
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Biomass Accumulation ◽  
Lint Yield ◽  
Full Irrigation ◽  
Cotton Lint ◽  
Use Efficiency ◽  
Different Levels ◽  
Crop Biomass

Irrigated cotton (Gossypium hirsutum L.) growers in the Murray-Darling Basin (MDB) of Australia, are challenged by limited water availability. This modelling-study aimed to determine if deficit irrigation (DI) practices can potentially improve water use efficiency (WUE) for furrow irrigation (FI), overhead sprinkler irrigation (OSI) and subsurface drip irrigation (SDI) systems. We validated the Agricultural Production System sIMulator (APSIM) against observed cotton lint yield and crop biomass accumulation for different management practices. The model achieved concordance correlation coefficients of 0.93 and 0.82 against observed cotton crop biomass accumulation and lint yields, respectively. The model was then applied to evaluate the impacts of different levels of DI on lint yield, WUE across cotton growing locations in the MDB (Goondiwindi, Moree, Narrabri, and Warren), during the period from 1977 to 2017. The different levels of DI for the FI system were no irrigation, full irrigation (TF) and irrigated one out of four, one out of three, one out of two, two out of three and two out of four TF events. For the OSI and SDI systems, DI levels were no irrigation, TF, 20% of TF, 40% of TF, 60% of TF and 80% of TF. Lint yield was maximised under the OSI and SDI systems for most locations by applying 80% of TF. However; modelling identified that WUE was maximised at 60% of full irrigation for OSI and SDI systems. These results suggest there are significant gains in agronomic performance to be gained through the application of DI practices with these systems. For FI, DI had no benefit in terms of increasing yield, while DI showed marginal gains in terms of WUE in some situations. This result is due to the greater exposure to periodic water deficit stress that occurred when DI practices were applied by an FI system. The results suggest that in the northern MDB, water savings could be realised for cotton production under both OSI and SDI systems if DI were adopted to a limited extent, depending on location and irrigation system.

scholarly journals Optimizing Et-Based Irrigation Scheduling for Wheat and Maize with Water Constraints

2017 ◽  
Vol 60 (6) ◽  
pp. 2053-2065 ◽  
Author(s):  
Liwang Ma ◽  
Zhiming Qi ◽  
Yanjun Shen ◽  
Liang He ◽  
Shouhua Xu ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Irrigation Scheduling ◽  
Weather Data ◽  
Growth Stages ◽  
Area Index ◽  
Use Efficiency

Abstract. Deficit irrigation has been shown to increase crop water use efficiency (WUE) under certain conditions, even though the yield is slightly reduced. In this study, the Root Zone Water Quality Model (RZWQM) was first calibrated with measured data from a large weighing lysimeter from 1998 to 2003 at the Yucheng Experimental Station in the North China Plain for daily evapotranspiration (ET), soil water storage (0-120 cm), leaf area index (LAI), aboveground biomass, and grain yield. The calibrated model was then used to explore crop responses to ET-based irrigation management using weather data from 1958 to 2015 and identify the most suitable ET-based irrigation schedules for the area. Irrigation amount was determined by constraining irrigation to a percentage of potential crop ET (40%, 60%, 80%, and 100% ETc) at the various growth stages of wheat [planting to before winter dormancy (P-D), green up to booting (G-B), booting to flowering (B-F), and flowering to maturity (F-M)] and of maize [planting to silking (P-S) and silking to maturity (S-M)], subject to seasonal water availability limits of 100/50, 200/100, 300/150, and 400/200 mm and no water limit for wheat/maize seasons, respectively. In general, wheat was more responsive to irrigation than maize, while greater influence of weather variation was simulated on maize than on wheat. For wheat with seasonal water limits, the highest average WUE was simulated with the highest targeted ETc levels at both the G-B and B-F stages and lower targeted ETc levels at the P-D and F-M stages. However, the highest average grain yield was simulated with the highest targeted ETc levels at all four growth stages for no water limit and the 400 mm water limit, or at both the G-B and B-F stages for the 300 and 200 mm water limits. For maize, lower targeted ETc levels after silking did not significantly affect maize production due to the high season rainfall, but irrigation of 60% ETc before silking was recommended. These results could be used as guidelines for precision irrigation along with real-time weather information. Keywords: Deficit irrigation, Evapotranspiration, Growth stage, RZWQM, Water use efficiency, Wheat and maize.

scholarly journals PRODUÇÃO E EFICIÊNCIA DE USO DA ÁGUA EM CULTIVARES DE BANANEIRA SOB IRRIGAÇÃO COM DÉFICIT CONTROLADO

Irriga ◽  
2021 ◽  
Vol 26 (1) ◽  
pp. 94-110
Author(s):  
Eugênio Ferreira Coelho ◽  
Marcelo Rocha dos Santos ◽  
Sérgio Luiz Rodrigues Donato ◽  
João Batista Ribeiro da Silva Reis ◽  
Ariane Castricini
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Fruit Size ◽  
Minas Gerais ◽  
Regulated Deficit Irrigation ◽  
Musa Spp ◽  
Use Efficiency ◽  
E Mail

PRODUÇÃO E EFICIÊNCIA DE USO DA ÁGUA EM CULTIVARES DE BANANEIRA SOB IRRIGAÇÃO COM DÉFICIT CONTROLADO     EUGÊNIO FERREIRA COELHO1; MARCELO ROCHA DOS SANTOS2; SÉRGIO LUIZ RODRIGUES DONATO2; JOÃO BATISTA RIBEIRO DA SILVA REIS3 E ARIANE CASTRICINI3   1 Pesquisador, PhD, Embrapa Mandioca e Fruticultura, R. Embrapa, s/n – CEP: 44380-000 – Cruz das Almas, BA – Brasil, E-mail: eugenio.coelho@embrapa,br 2 Professor, Doutor, Instituto Federal de Educação, Ciência e Tecnologia Baiano Campus Guanambi, Zona Rural, Distrito de Ceraíma, CEP: 46.430-000 – Guanambi, BA – Brasil, E-mail: [email protected], [email protected]  3 Pesquisador, Doutor, Empresa de Pesquisa Agropecuária de Minas Gerais, Rod. MGT 122, km 155 – CEP: 39525-000 – Nova Porteirinha, MG – Brasil, E-mail: [email protected], [email protected]     1 RESUMO   Objetivou-se com este trabalho avaliar a produtividade, a eficiência de uso da água e o tamanho dos frutos de diferentes cultivares de bananeira sob irrigação com déficit controlado no norte de Minas Gerais. O experimento foi conduzido no quarto ciclo de produção de bananeiras ‘Grande Naine’, ‘Galil-18’ (FHIA-18), ‘BRS Platina’, ‘Prata-Anã’ e ‘BRS Princesa’. A irrigação com déficit controlado (RDI) de 70 e 50% da evapotranspiração da cultura (ETc) foi realizada em um, dois ou três períodos de julho de 2016 a julho de 2017. Independentemente das cultivares, a altura da planta foi reduzida quando aplicado dois déficits de 50% da ETc, já a área foliar aumentou quando aplicados RDI em um período, RDI com 70% da ETc em dois períodos e RDI com 50% da ETc em três períodos. A RDI de até 50% da ETc em três períodos durante o ciclo da cultura não causa redução na produtividade em nenhuma cultivar avaliada, comparada à irrigação plena. A RDI com 70% da ETc em apenas um período, entre novembro e fevereiro, período chuvoso, possibilitou maior produtividade e maior eficiência de uso da água na ‘Grande Naine’, formando mesmo agrupamento com a ‘BRS Princesa’ e a ‘Prata-Anã’.   Palavras-chave: Musa spp., manejo da irrigação, semiárido.     COELHO, E. F.; SANTOS, M. R.; DONATO, S. L. R.; REIS, J. B. R. S.; CASTRICINI, A. PRODUCTION AND WATER USE EFFICIENCY IN BANANA CULTIVARS UNDER REGULATED DEFICIT IRRIGATION     2 ABSTRACT   This work aimed to evaluate the productivity, water use efficiency and fruit size of different banana cultivars under regulated deficit irrigation in the north of Minas Gerais. The experiment was conducted in the fourth cycle of banana production ‘Great Naine’, ‘Galil-18’ (FHIA-18), ‘BRS Platinum’, ‘Prata-Anã’ and ‘BRS Princesa’. Regulated deficit irrigation (RDI) of 70 and 50% of crop evapotranspiration (ETc) was conducted in one, two or three periods from July 2016 to July 2017. Regardless of cultivars, plant height was reduced when two 50% ETc deficits were applied, whereas leaf area increased when RDI was applied in one period, RDI with 70% ETc in two periods and RDI with 50% ETc in three periods. RDI of up to 50% of ETc in three periods during the crop cycle does not reduce yield in any evaluated cultivar compared to full irrigation. The RDI with 70% of ETc in only one period, between November and February, rainy season, enabled higher productivity and greater water use efficiency in ‘Grande Naine’, forming even grouping with ‘BRS Princesa’ and ‘Prata- Anã’.   Keywords: Musa spp., irrigation management, semi-arid.

scholarly journals Comparative effects of partial rootzone drying and deficit irrigation on growth and physiology of tomato plants

2009 ◽  
Vol 61 (4) ◽  
pp. 801-810 ◽  
Author(s):  
Sladjana Savic ◽  
F. Liu ◽  
Radmila Stikic ◽  
S.E. Jacobsen ◽  
C.R. Jensen ◽  
...  
Keyword(s):  
Stomatal Conductance ◽  
Water Use Efficiency ◽  
Water Potential ◽  
Water Use ◽  
Deficit Irrigation ◽  
Dry Weight ◽  
Full Irrigation ◽  
Tomato Plants ◽  
Use Efficiency ◽  
Partial Rootzone Drying

The effects of partial rootzone drying (PRD), deficit irrigation (DI), and full irrigation (FI) on tomato physiology were investigated. In PRD and DI plants, leaf water potential values and stomatal conductance were significantly lower, while xylem ABA concentration was greater compared to FI plants. Photosynthesis was similar for all treatments. Water use efficiency was improved by PRD and DI, which reduced fruit dry weight, but had no effect on dry weight of leaves and stems.

Sign in / Sign up

Export Citation Format

Share Document