Fruit yield and water use efficiency of eggplant (Solanum melongema L.) as influenced by different quantities of nitrogen and water applied through drip and furrow irrigation

Aujla, M. S.; Thind, H. S.; Buttar, G. S.

doi:10.1016/j.scienta.2006.12.020

Cited by 131 publications

(104 citation statements)

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“…Other studies have also reported that NUE in vegetable cultivation could be increased by reasonable water and nitrogen treatment (Aujla et al 2007;Zotarelli et al 2009). Similar results were found in our study.…”

Section: Discussionmentioning

confidence: 99%

The effects of different water and nitrogen levels on yield, water and nitrogen utilization efficiencies of spinach (Spinacia oleraceaL.)

et al. 2015

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L. 2015. The effects of different water and nitrogen levels on yield, water and nitrogen utilization efficiencies of spinach (Spinacia oleracea L.). Can. J. Plant Sci. 95: 671Á679. Water and nitrogen (N) are important factors that affect crop yield. The objective of this study was to explore the interactive effect of water and nitrogen on biomass production, yield and growth responses, water and nitrogen use efficiency of winter-grown spinach. A field experiment was grown with treatments of varying water (W) and nitrogen (N) levels near Shanghai, China. Leaf area, shoot biomass and height of spinach increased with the application of N in the well-watered treatment. The highest chlorophyll content was found in spinach treated with N 2 (170 kg ha(1 nitrogen). A response surface analysis was done on plant height, leaf number, leaf weight, and plant yield of each spinach plant at different water and nitrogen levels. The equation for each of the response surfaces was taken and solved for the mathematical optimum of the curves. Abundant water supply resulted in the highest spinach yield. Yield of spinach increased with N application rates but decreased when the N was excessive. Compared with the low water treatment (W 3 ), a higher N leaching ratio was observed in the high water treatment (W 1 ), regardless of N treatment. With the increase of N application, N use efficiency of spinach significantly decreased, while water use efficiency of spinach increased. In conclusion, water levels between 36.15 cm and 42 cm, and nitrogen applications between 86 and 152.74 kg ha(1 could be recommended as the optimal treatment for spinach growth.

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Section: Discussionmentioning

confidence: 99%

The effects of different water and nitrogen levels on yield, water and nitrogen utilization efficiencies of spinach (Spinacia oleraceaL.)

et al. 2015

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“…A partir da produção de frutos e das doses de nitrogênio determinou-se a eficiência agronômica do nitrogênio (EAN), definida pela relação entre a produção de frutos e a quantidade de nitrogênio aplicada por planta (Aujla et al, 2007).…”

Section: Methodsunclassified

“…Esses resultados divergem, em parte, dos obtidos por Aujla et al (2007) os quais, trabalhando com métodos de irrigação e níveis de nitrogênio, constataram aumento na EAN com o aumento até a dose de 150 kg ha -1 ; no entanto, é oportuno ressaltar que esses autores trabalharam em condições de campo nas quais as plantas apresentaram maior desenvolvimento do sistema radicular e, em contrapartida, capacidade de explorar maior volume de solo e absorver mais nutrientes.…”

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

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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“…The content of fibre was influenced by the interaction of irrigation and heat stress, so neither the irrigation levels nor the heat stress can be accountable in an unequivocal way to explain the fibre content. To maintain profitable yield in eggplant irrigation is essential (Aujla et al, 2007). The optimal water supply gave 19.6% and 4.44% more yield (in 2011 and 2012 respectively) than the less irrigated plots.…”

Section: Discussionmentioning

confidence: 99%

The Simultaneous Effect of Heat Stress and Water Supply on Total Polyphenol Content of Eggplant

Helyes

Nagy

Daood

et al. 2015

AEER

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Helyes et al.: The simultaneous effect of heat stress and water supply on total polyphenol content of eggplant - Abstract. Eggplant is considered as one of the healthiest vegetables due to its nutritional values. A 2-year open field experiment was set up in 2011 and 2012 to observe the effects of heat stress and different irrigation volumes on the amount of phenolic compounds, fibre and dry matter in eggplant fruits. The optimal irrigation volume (IO) was calculated from the daily potential evapotranspiration and was compared to a treatment utilising 50% of the optimal water volume (I50). We concluded that there was no significant difference between the irrigation levels in the aspect of total polyphenol and dry matter, but there was a decrease in fibre content. Yield was increased by 19.6% with irrigation in 2011 and by 4.44% in 2012. The effect of heat stress is closely related to harvest time. In our study we proved that more heat stress resulted in more total polyphenol content in eggplant, the equation describing this relation is y=39.322+0.501x. Heat stress also stimulated dry matter and fibre content, and this influence was also significant.

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Fruit yield and water use efficiency of eggplant (Solanum melongema L.) as influenced by different quantities of nitrogen and water applied through drip and furrow irrigation

Cited by 131 publications

References 20 publications

The effects of different water and nitrogen levels on yield, water and nitrogen utilization efficiencies of spinach (Spinacia oleraceaL.)

The effects of different water and nitrogen levels on yield, water and nitrogen utilization efficiencies of spinach (Spinacia oleraceaL.)

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

The Simultaneous Effect of Heat Stress and Water Supply on Total Polyphenol Content of Eggplant

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