Deficit irrigation effect on fruit yield, quality and water use efficiency: A long-term study on Pêra-IAC sweet orange

Silveira, Laís Karina; Pavão, Gláucia Cristina; Dias, Carlos Tadeu dos Santos; Quaggio, J. A.; Pires, Regina Célia de Matos

doi:10.1016/j.agwat.2020.106019

Cited by 41 publications

(28 citation statements)

References 21 publications

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“…For example, plants may not be affected, even favoured under mild or moderate drought, but it can be limited and even damaged by severe drought (e.g., Fereres and Soriano, 2007;Xu et al, 2014). Under a mild or moderate water deficit, an increased water use efficiency (WUE), improved nutritional content, and stable grain yield often can be observed, which can improve sustainable development by allowing deficit irrigation and water-saving agricultural practices (Fereres and Soriano, 2007;Geerts and Raes, 2009; Du et al, 2015; Silveira et al, 2020). Further exploration of crop responses to various water conditions can therefore provide critical information for optimising crop management practices, particularly under future climate change (Lobell et al, 2014;Leakey et al, 2019;Kimm et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic resistance and resilience under drought, flooding and rewatering in maize plants

Miao

Liu

et al. 2021

Photosynth Res

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Abnormally altered precipitation patterns induced by climate change have profound global effects on crop production. However, the plant functional responses to various precipitation regimes remain unclear. Here, greenhouse and field experiments were conducted to determine how maize plant functional traits respond to drought, flooding, and rewatering. Drought and flooding hampered photosynthetic capacity, particularly when severe and/or prolonged. Most photosynthetic traits recovered after rewatering, with few compensatory responses. Rewatering often elicited high photosynthetic resilience in plants exposed to severe drought at the end of plant development, with the response strongly depending on the drought severity/duration and plant growth stage. The associations of chlorophyll concentrations with photosynthetically functional activities were stronger during post-tasselling than pre-tasselling, implying an involvement of leaf age/senescence in responses to episodic drought and subsequent rewatering. Coordinated changes in chlorophyll content, gas exchange, fluorescence parameters (PSII quantum efficiency and photochemical/non-photochemical radiative energy dissipation) possibly contributed to the enhanced drought resistance and resilience and suggested a possible regulative trade-off. These findings provide fundamental insights into how plants regulate their functional traits to deal with sporadic alterations in precipitation. Breeding and management of plants with high resistance and resilience traits could help crop production under future climate change.

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Section: Introductionmentioning

confidence: 99%

Photosynthetic resistance and resilience under drought, flooding and rewatering in maize plants

Miao

Liu

et al. 2021

Photosynth Res

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“…through its impact on seedbed preparation, germination, root growth, absorption efficiency of fertilizers and crop growth) and farm economic performance (e.g. crop yields and farm income) (Huang et al, 2006;Kajisa and Payongayong, 2011;Li et al, 2020;Schuenemann et al, 2018;Silveira et al, 2020;Van Den Berg and Ruben, 2006;Wang et al, 2019). Therefore, enhancing the construction of irrigation infrastructure is considered a way to significantly improve the livelihoods of rural households.…”

Section: Introductionmentioning

confidence: 99%

The impact of access to irrigation on rural incomes and diversification: evidence from China

Renwick

et al. 2020

CAER

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PurposeThe objective of this study is to estimate the impacts of access to irrigation on farm income, household income and income diversification.Design/methodology/approachThis study employs an endogenous switching regression (ESR) model to address the selection bias arising from both observed and unobserved factors and analyze cross-sectional data collected from Fujian, Henan and Sichuan provinces in China. The authors use the Simpson index to measure household income diversification. The propensity score matching (PSM) model and control function approach are also used for comparison purpose.FindingsAfter controlling for the selection bias, the authors find that access to irrigation has a positive and statistically significant impact on rural incomes and diversification. The treatment effects of access to irrigation are to increase farm income, household income and income diversification by around 14, 10 and 107%, respectively. The positive effects of access to irrigation are confirmed by the estimates of the PSM model and control function approach. Further analysis reveals that the irrigation effects on rural incomes and diversification are heterogeneous between small-scale and large-scale farmers and between male-headed and female-headed households.Practical implicationsThe authors’ findings suggest that the government should continue to improve irrigation infrastructure construction in rural China to promote smallholder farmers' water access and at the same time facilitate farmers' access to better agronomic and irrigation information. There exist gender and farm size related income and diversification effects of access to irrigation, and the irrigation access is associated with farm location. Thus, when developing regional irrigation programs consideration needs to be taken of whether the rural farming systems are dominated by male/female household heads and land fragmentation/consolidation issues.Originality/valueAlthough a large body of literature has investigated the effects of irrigation development in rural areas, little is known about the impact of access to irrigation on income diversification. The selection bias associated with unobserved heterogeneities is usually neglected in previous studies. This study provides the first attempt by examining the impacts of access to irrigation on rural incomes and diversification, using the ESR model to address both observed and unobserved selection bias.

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“…Pulse-deficit drip irrigation techniques The average weight of the Tomato fruit per plant; FW were positively reflected on the increase of water productivity (WP). It was found that the highest water productivity was in the treatment of DP50 (37.1 kg/m 3 ) and that was better water saving strategy which conforms to (Silveira, et al, 2020). The lowest WP was in the treatment of FC100 ( 27.9 kg/m 3 ).…”

Section: E Water Productivity; Wpmentioning

confidence: 85%

“…A lot of benefits of deficit irrigation in terms of improved quality and water productivity while sustaining fruit yield could be achieved with regulated DI at 0.8xETc and DI at 0.6xETc during vegetative stage followed by flowering (Nangare, et al, 2016). Silveira, et al, (2020) found that deficit irrigation management at 50 % ETc is a better water saving strategy. Al-Ghobari & Dewidar, 2018; Yu, et al, (2020) studies demonstrated that deficit irrigation is a promising practice, the regional environment and proper deficit irrigation methods should be carefully considered.…”

Section: Introductionmentioning

confidence: 97%

Effect Use of Pulsed Deficit Drip Irrigation for Tomato Crop in Greenhouse powered by solar energy

Abd-elhakim

Elmeadawy

El-Sybaee

et al. 2020

Misr Journal of Agricultural Engineering

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The presented study aims to investigate the effect of using two effective irrigation techniques; the pulse-deficit drip irrigation and the deficit irrigation powered by solar energy in a greenhouse. This work studied impact of these factors a tomato soilless productivity, water productivity and of these techniques solar energy productivity. The experimental study was carried out at Tractors and Farm Machinery Research and Test Station, Alexandria Governorate. The results showed that, the pulsed-full drip irrigation at 100% of ETc (FP100) gave the highest yield of 35.8 ton/fed., but the continuous-deficit drip irrigation at 50% of ETc (DC50) gave the lowest yield of 20.4 ton/feddan. The highest water productivity (WP) was 37.1 kg/m 3 when using the treatment of (DP50), on the other hand the Continuous-Full drip irrigation at 100% of ETc (FC100) (control treatment) represents the lowest WP of 27.9 kg/m 3 . Application of pulse-deficit irrigation (DP50) saved 50% of the water irrigation requirements and decreased the total tomato yield per feddan by 34%, but the water productivity increased by 33% compared with continuous-full irrigation (FC100) as control. Treatment of pulse-deficit irrigation (DP50) saved 50% of solar energy consumption and increase energy productivity (908 kg/kWh) by 33% compared to continuous-full irrigation (FC100) as control. The results showed that pulse-deficit drip irrigation technique, decrease tomato yield but increase WP in all treatments. This study recommend apply, pulse-deficit irrigation (DP75) technique results in reducing tomato yield by 3% and increasing water and energy productivity by 29.3 and 29.4% respectively.

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Deficit irrigation effect on fruit yield, quality and water use efficiency: A long-term study on Pêra-IAC sweet orange

Cited by 41 publications

References 21 publications

Photosynthetic resistance and resilience under drought, flooding and rewatering in maize plants

Photosynthetic resistance and resilience under drought, flooding and rewatering in maize plants

The impact of access to irrigation on rural incomes and diversification: evidence from China

Effect Use of Pulsed Deficit Drip Irrigation for Tomato Crop in Greenhouse powered by solar energy

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