Long-term effects of partial root-zone drying (PRD) on yield, oil composition and quality of olive tree (cv. Chemlali) irrigated with saline water in arid land

Ghrab, Mohamed; Ayadi, Mohamed Ali; Gargouri, Kamel; Chartzoulakis, K.; Gharsallaoui, Mariem; Bentaher, Hatem; Psarras, Georgios; Mimoun, M. Ben; Masmoudi, Mohamed Moncef; Mechlia, N. Ben

doi:10.1016/j.jfca.2014.05.005

Cited by 20 publications

(17 citation statements)

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“…Peroxide values, FFA values, and UV‐specific extinction coefficients were all found to be stable regardless of salinity . Nevertheless, fatty acid profile was reported to change significantly under induced salinity conditions . These changes, however, differed greatly among the studies, to an extent where no general statement can be made concerning characteristic tendencies.…”

Section: Introductionmentioning

confidence: 91%

“…With respect to nutritional and health‐related quality, levels of tocopherols (vitamin E isomers) and phytosterols were reported to increase significantly with increased salinity but to then decrease with very high salinity, whereas total polyphenol concentrations were reported to rise with increasing water salinity, and continued to increase even for high EC values . Chlorophyll levels of oil consistently declined when irrigation water EC values increased while carotenoid levels were not consistently affected by salinity, and were alternatively found to either rise, decline, or not change . Oil stability, measured as induction time, was reported either to increase or decrease, and correlated well with polyphenol contents …”

Section: Introductionmentioning

confidence: 99%

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Irrigation‐induced salinity affects olive oil quality and health‐promoting properties

et al. 2018

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The possible negative effects on olive oil quality due to FA-related parameters should concern producers dependent on, or considering, irrigation with high-salinity water sources. A number of important quality parameters were differentially influenced by the method of inducing the root zone salinity, suggesting that additional environmental variables leading to oxidative responses were affected by the treatments. © 2018 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Irrigation‐induced salinity affects olive oil quality and health‐promoting properties

et al. 2018

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“…al., 2010;BASSOI et al, 2011;COTRIM et al, 2011;SANTOS;ROMERO-CONDE et al, 2014;SAMPAIO et al, 2014;GHRAB et al, 2014;LIMA et al, 2015). Conversely, information regarding water stress during floral induction in mangoes is scarce, and questions remain on which irrigation reduction strategy is the most appropriate, without impairing this crop.…”

Section: Introductionmentioning

confidence: 99%

The effects of irrigation management on floral induction of ‘Tommy Atkins' mango in bahia semiarid

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et al. 2016

Eng. Agríc.

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This study aimed to evaluate reduction strategies of irrigation for proper management of floral induction and production of 'Tommy Atkins' mangoes, in the semiarid region of the Bahia state, Brazil. Five treatments with reduced irrigation levels based on crop evapotranspiration (ETc) were applied in two development stages, FI -flowering and FII -fruiting. Water depths were T1 -0% of ETc in FI and 100% in FII; T2 -25% of ETc in FI and 100% in FII; T3 -50% of ETc in FI and 100% in FII; T4 -75% of ETc in FI and 100% in FII; and T5 -100% of ETc in FI and FII. The treatments were arranged in a randomized complete block design with six replications. Photosynthesis and transpiration rates in phases FI and FII were larger at 8 am than at 2 pm, regardless of the strategies used. These strategies lead to smaller values of photosynthesis, transpiration and leaf water potential within flowering stage. Productive characteristics were not affected by irrigation level reduction for flower induction process, only for the cycles evaluated. Strategies with 0% of ETc in FI and 100% in FII or 25% of ETc in FI and 100% in FII are appropriate to flower induction in 'Tommy Atkins' mango. KEY WORDS:Mangifera, controlled water deficit, irrigation strategies. MANEJO DA IRRIGAÇÃO NA INDUÇÃO FLORAL DA MANGUEIRA 'TOMMY ATKINS' NO SEMIÁRIDO BAIANORESUMO: Objetivou-se avaliar estratégias de redução de lâminas de irrigação para manejo adequado da indução floral e produção da mangueira 'Tommy Atkins', na região do semiárido baiano. Cinco tratamentos com redução de lâminas de irrigação, baseadas na evapotranspiração de cultura (ETc), foram aplicados em duas fases de desenvolvimento, FI -floração e FII -frutificação: T1, 0% da ETc na FI e 100% na FII; T2, 25% da ETc na FI e 100% na FII; T3, 50% da ETc na FI e 100% na FII; T4, 75% da ETc na FI e 100% na FII; e T5, 100% da ETc em FI e FII, dispostos num delineamento experimental em blocos casualizados, com seis repetições. As taxas de fotossíntese e de transpiração de mangueira 'Tommy Atkins', nas fases FI e FII, são maiores às 8 que às 14 horas, independentemente das estratégias utilizadas. Essas estratégias conduzem a menores valores de fotossíntese, transpiração e de potencial hídrico foliar da mangueira 'Tommy Atkins' na fase de florescimento. As características produtivas não foram influenciadas pelas estratégias de redução de lâminas de irrigação no processo de indução floral da mangueira 'Tommy Atkins', apenas pelos ciclos avaliados. Estratégias com 0% da ETc na FI e 100% na FII ou 25% da ETc na FI e 100% na FII são adequadas ao processo de indução floral da mangueira 'Tommy Atkins'.

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“…The regulated deficit irrigation (RDI) and partial root-zone drying (PRD) or controlled alternate partial root-zone irrigation, are among the deficit irrigation techniques that has increasing water use efficiency in some crops. (BASSOI et al, 2011;ROMERO-CONDE et al, 2014;SAMPAIO et al, 2014;GHRAB et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Irrigation Deficit Strategies on Physiological and Productive Parameters of 'Tommy Atkins' Mango

et al. 2016

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-The objective of this work was to evaluate the gas exchange, leaf temperature, yield and water use efficiency in 'Tommy Atkins' mango under irrigation deficit strategies. The experimental design was randomized block, with seven treatments with regulated deficit irrigation (RDI) under micro-spray and five treatments with partial root-zone drying (PRD) under drip irrigation. The treatments on RDI consisted of application of 100, 75 and 50% of ETc at the stages S1 (beginning of flowering to fruit set) S2 (fruit development) and S3 (fruit physiological maturation). The treatments on PRD consisted of application of 100, 80, 60 and 40% of ETc, in the same three stages, alternating the irrigation side every 15 days. The regulated deficit irrigation causes less negative interference in gas exchange than the partial root-zone drying, and the climate factors affect the gas exchange and leaf temperature of 'Tommy Atkins' mango more than the regulated deficit irrigation. The partial root-zone drying irrigation with 60 and 40% of ETc causes a decrease in the 'Tommy Atkins' mango yield. The regulated deficit irrigation up to 50% of ETc, applied at the fruit maturation stage, maintain the yield and water use efficiency.Keywords: Water deficit. Irrigation management. Mangifera indica. Gas exchange. PARÂMETROS FISIOLÓGICOS E PRODUTIVOS EM MANGUEIRAS 'TOMMY ATKINS' SOB ESTRATÉGIAS DE DÉFICIT DE IRRIGAÇÃORESUMO -Objetivou-se com este trabalho avaliar as trocas gasosas, temperatura foliar, produtividade e eficiência de uso da água em mangueira "Tommy Atkins" sob irrigação com déficit. O delineamento experimental foi em bloco casualizado, com sete tratamentos para a irrigação com déficit controlado (RDI) sob microaspersão e com cinco tratamentos para a irrigação lateralmente alternada (PRD) sob gotejamento. No manejo RDI os tratamentos consistiram da aplicação de 100, 75 e 50% da ETc nas fases F1 (início da floração até o pegamento dos frutos), F2 (desenvolvimento do fruto), e F3 (maturação fisiológica do fruto). No manejo pelo PRD os tratamentos consistiram da aplicação de 100, 80, 60 e 40% da ETc nas três fases com alternância do lado irrigado de 15 dias. Verificou-se que a irrigação com déficit controlado causa menos interferências negativas nas trocas gasosas que a irrigação lateralmente alternada e as trocas gasosas e temperatura foliar da mangueira "Tommy Atkins" sofrem maiores influências de elementos do clima que da irrigação com déficit controlado. A irrigação lateralmente alternada com 60 e 40% da ETc ocasiona queda na produção da mangueira "Tommy Atkins". Irrigação com déficit controlado com até 50% da ETc aplicados na fase de maturação do fruto mantem a produtividade e a eficiência de uso da água.Palavras-chaves: Déficit hídrico. Manejo da irrigação. Mangifera indica. Trocas gasosas.

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Long-term effects of partial root-zone drying (PRD) on yield, oil composition and quality of olive tree (cv. Chemlali) irrigated with saline water in arid land

Cited by 20 publications

References 53 publications

Irrigation‐induced salinity affects olive oil quality and health‐promoting properties

Irrigation‐induced salinity affects olive oil quality and health‐promoting properties

The effects of irrigation management on floral induction of ‘Tommy Atkins' mango in bahia semiarid

Irrigation Deficit Strategies on Physiological and Productive Parameters of 'Tommy Atkins' Mango

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