Effects of salinity on eggplant (<i>Solanum melongena</i> L.) growth and evapotranspiration

Ünlükara, Ali; Kurunç, Ahmet; Kesmez, Gülüzar Duygu; Yurtseven, Engin; Suarez, Donald L.

doi:10.1002/ird.453

Cited by 97 publications

(68 citation statements)

References 17 publications

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“…The decrease in leaf K is similar to that reported in other plants (Azevedo Neto et al 2004;Tavakkoli et al 2010Tavakkoli et al , 2011Wang et al 2011) as well as in other cultivars of eggplant (Abbas et al 2010;Unlukara et al 2010;Akinci et al 2004;Shaheen et al 2012) under salinity stress. This decrease in leaf K could be attributable to competitive inhibition by Na (Zang et al 2010).…”

Section: Mineral Accumulationsupporting

confidence: 90%

“…It has been classified as a moderately sensitive plant (Dajic 2006) and most of its cultivars studied have been shown to be affected by salinity stress owing to their inability to control or regulate the uptake and accumulation of Na in the leaves (Chartzoulakis and Loupassaki 1997;Savvas and Lenz 2000;Demir et al 2003;Akinci et al 2004;Unlukara et al 2010;Abbas et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of growth and mineral accumulation of two solanaceous species,Solanum scabrumMill. (huckleberry) andS. melongenaL. (eggplant), under salinity stress

Assaha

Ueda

Saneoka

2013

Soil Science and Plant Nutrition

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Solanum scabrum Mill. (huckleberry) is widespread in West, East and Central Africa, where it constitutes one of the most important leafy vegetables. However, the salinity tolerance of this crop has not yet been assessed. The objective of this study was to assess the response of huckleberry to salinity stress in comparison with eggplant (S. melongena L.). Four-week-old seedlings of both species were subjected to two levels of salinity stress, 50 mM and 150 mM sodium chloride (NaCl), for 14 d. Leaf water potential of both species decreased with increasing salinity stress. This decrease was lower in huckleberry than in eggplant. Total dry weight and total leaf area were also decreased by salinity, and the reductions of total dry weight and total leaf area under the 50 mM treatment compared with the control were 25 and 18% in huckleberry, while they were 47 and 55% in eggplant, respectively. The increases in leaf sodium (Na) accumulation in the 50 and 150 mM treatments compared with the control were 65 and 66% for eggplant and 18 and 36% for huckleberry, respectively. Na accumulation in stem and root in huckleberry was higher than that of leaf, whereas it was the reverse in eggplant under both salinity treatments. Huckleberry accumulated less Na in the leaves than eggplant, suggesting that huckleberry might reduce the transport of Na to its leaves more effectively than eggplant. The decrease of potassium (K) accumulation and the increase of Na in leaves by salinity resulted in a higher Na/K ratio in leaves, but this trend was greater in eggplant than in huckleberry. The calcium (Ca) concentration in leaves of huckleberry was also increased by salinity, whereas that of eggplant was decreased. These results indicate that huckleberry is more tolerant to salinity than eggplant, and less decrease in leaf area associated with lower leaf Na and increased Ca concentrations may be important in enhancing quality and sustaining productivity of the crop under this stress.

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Section: Mineral Accumulationsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Comparison of growth and mineral accumulation of two solanaceous species,Solanum scabrumMill. (huckleberry) andS. melongenaL. (eggplant), under salinity stress

Assaha

Ueda

Saneoka

2013

Soil Science and Plant Nutrition

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“…De acordo com a literatura, a berinjela é classificada como moderadamente sensível à salinidade, apresentando redução no rendimento com salinidade a partir de 1,5 dS m -1 e perda relativa de 4,4% para cada aumento unitário de condutividade elétrica (Unlukara et al, 2010). Trabalhando com o mesmo híbrido utilizado neste trabalho ("Ciça"), Silva et al (2013) verificaram que a redução na produção da cultura da berinjela em estufa foi, em média, de 8,65% por incremento de 1 dS m -1 na salinidade do solo acima, portanto, da salinidade limiar, que foi de 1,71 dS m -1 ; pode-se constatar, então, que esses resultados estão bem próximos aos obtidos no presente trabalho.…”

Section: Figura 1 Número De Frutos De Berinjela Em Função Da Salinidunclassified

“…A berinjela é uma cultura moderadamente sensível à salinidade, apresentando salinidade limiar de 1,5 dS m -1 e perda de rendimento de 4,4% por aumento unitário da salinidade (Unlukara et al, 2010); no entanto, a sensibilidade da berinjela à salinidade pode variar de acordo com o material genético utilizado e com as condições de cultivo (Parida & Das, 2005).…”

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Interação entre salinidade da água de irrigação e adubação nitrogenada na cultura da berinjela

Oliveira

Medeiros

Alves

et al. 2014

Rev. bras. eng. agríc. ambient.

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R E S U M OPropôs-se, neste trabalho, avaliar a interação de níveis de salinidade da água de irrigação associada a doses de nitrogênio sobre a produção de frutos de berinjela. O experimento foi conduzido em ambiente protegido do Departamento de Ciências Ambientais e Tecnológicas -UFERSA. O experimento obedeceu a um delineamento de blocos casualizados em esquema fatorial 4 x 6, com quatro repetições e quatro níveis de condutividade elétrica da água de irrigação (0,5; 2, 4 e 6 dS m -1 ) além de seis doses de nitrogênio (5, 10, 15, 20, 25 e 30 g planta -1 ). Seis colheitas foram realizadas nas quais se analisaram as seguintes variáveis: número de frutos, comprimento, diâmetro e massa média de frutos e produção total de frutos por planta. Após a análise estatística dos dados verificou-se efeito negativo da salinidade sobre todas as variáveis analisadas. Doses de nitrogênio acima de 5 g planta -1 não aumentaram a produção de frutos da berinjela mas aumentaram o efeito deletério da salinidade sobre o seu rendimento. A eficiência agronômica do nitrogênio é reduzida com o aumento na dose de N e da salinidade.Interaction between water salinity and nitrogen fertilization on the eggplant crop A B S T R A C TThe objective of this study was to evaluate the interaction of salinity of irrigation water levels associated with nitrogen doses on yield of eggplant crop. The experiment was conducted in a greenhouse of the Department of Environmental Sciences and Technology -UFERSA. The experiment followed a randomized block design in a 4 x 6 factorial, with four replications, with four levels of electrical conductivity of irrigation water (0.5, 2, 4 and 6 dS m -1 ) and six levels of nitrogen (5, 10, 15, 20, 25 and 30 g plant -1 ). Six measurements were conducted, in which the following variables were analysed: number of fruits, length, diameter and mean fruit weight, and total yield per plant. After statistical analysis of the data, it was verified that there was a negative effect of salinity on all variables. Nitrogen levels above 5 g plant -1 did not increase fruit yield of eggplant, and increased the deleterious effect of salinity on the yield of eggplant. The agronomic efficiency of nitrogen is reduced with increasing dose of N and salinity. ISSN 1807ISSN -1929ISSN v.18, n.5, p.480-486, 2014 Introdução A cultura da berinjela (Solanum melongena L.) tem-se expandido consideravelmente nos últimos anos visto que seus frutos apresentam características peculiares no uso em dietas fitoterápicas, com substâncias medicinais relevantes (Raigón et al., 2008); em razão dessas propriedades o consumo de berinjela vem aumentando entre os brasileiros. Palavras-chave:Um dos principais fatores que afetam a produção da berinjela é a qualidade da água utilizada na irrigação visto que o estresse salino provoca alterações morfofisiológicas, tais como: desequilíbrio nutricional, redução na condutância estomática e menores proporções nas taxas de transpiração, fotossíntese e concentração interna de CO 2 nas folhas, resultando morfologicamente em...

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“…De acordo Unlukara et al (2008) a berinjela é classificada como moderadamente sensível à salinidade, com queda no rendimento a partir de 1,5 dS m -1 de condutividade elétrica da água de irrigação com uma perda de produtividade de 4,4% para cada aumento unitário de condutividade elétrica.…”

Section: Introductionunclassified

Níveis de salinidade e manejo da fertirrigação sobre características da berinjela cultivada em ambiente protegido

et al. 2013

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) e dois manejos de fertirrigação: com controle da condutividade elétrica da solução do solo (M1), e o tradicional (M2), obedecendo a curva de absorção de nutrientes da cultura. O delineamento estatístico adotado foi o de blocos casualizados completos, com quatro repetições, arranjados no esquema fatorial 6 x 2. Os resultados revelaram que os níveis de salinidade do solo afetaram diretamente as variáveis, produção de matéria seca, produção de frutos e índice de área foliar das plantas. Verificou-se que a redução média na produção da cultura da berinjela, em estufa, foi da ordem de 8,65% para o incremento de 1 dS m -1 na salinidade do solo, acima da salinidade limiar, que foi de 1,71 dS m -1 . Palavras-Chave:Berinjela. Solos-salinidade. Adubos e fertilizantes. ABSTRACT -The objective was to study the effects of different levels of soil salinity on the phenological variables and production of the eggplant when grown in pots in a protected environment. The study was carried out at the experimental site of the Department of Biosystems Engineering ESALQ/USP in Piracicaba, São Paulo. The treatments consisted of a combination of two factors: six initial levels of soil salinity (S1 = 1.3, S2 = 2.4, S3 = 3.6, S4 = 4.5, S5 = 5.6 and S6 = 6.4 dS m -1) and two fertigation management: with the electrical conductivity of the soil solution being controlled (M1) and traditional (M2), following the absorption curve of nutrients from the culture. The statistical design adopted was a randomized complete-block design with four replications, arranged in a 6 x 2 factorial. The results showed that the levels of soil salinity directly affected the variables of dry-matter production, fruit production and leaf-area index of the plants. It was found that the average reduction in yield of the eggplant crop in a greenhouse, was approximately 8.65% for an increase of 1 dS m -1 in the salinity of the soil above the threshold salinity of 1.71 dS m -1 .

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Effects of salinity on eggplant (Solanum melongena L.) growth and evapotranspiration

Cited by 97 publications

References 17 publications

Comparison of growth and mineral accumulation of two solanaceous species,Solanum scabrumMill. (huckleberry) andS. melongenaL. (eggplant), under salinity stress

Comparison of growth and mineral accumulation of two solanaceous species,Solanum scabrumMill. (huckleberry) andS. melongenaL. (eggplant), under salinity stress

Interação entre salinidade da água de irrigação e adubação nitrogenada na cultura da berinjela

Níveis de salinidade e manejo da fertirrigação sobre características da berinjela cultivada em ambiente protegido

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