Influence of Irrigation and Nitrogen Fertilization on Broccoli Polyphenolics Concentration

Fortier, E.; Desjardins, Yves; Côté, Marc; Tremblay, Nicolas; Belec, C

doi:10.17660/actahortic.2010.856.6

Cited by 35 publications

(26 citation statements)

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“…As plantas que não receberam a adubação nitrogenada apresentaram aumento de 35 e 55% no IFLV, em comparação às plantas que receberam 300 kg ha -1 de N aos 21 e 42 DAE, respectivamente. Decréscimos do teor de flavonóis, determinado com o Dualex, também foram verificados para trigo Tremblay et al, 2010), milho (Huan et al, 2010) e brócolis (Fortier et al, 2010), com o aumento das doses de N.…”

Section: Resultsunclassified

Avaliação do estado nutricional do nitrogênio em batateira por meio de polifenóis e clorofila na folha

Coelho

Fontes

Finger

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito de doses de N sobre índices fisiológicos relacionados à nutrição nitrogenada e verificar a possibilidade de estimar indiretamente os teores foliares de N em batata. Foram avaliados os índices de flavonóis (IFLV), de clorofila (ICHL) e de balanço de N (IBN), e as estimativas dos teores foliares de N foram realizadas aos 21 e 42 dias após a emergência, por meio do medidor portátil Dualex. O experimento foi conduzido de novembro de 2010 a fevereiro de 2011, em delineamento de blocos ao acaso, e os tratamentos consistiram de cinco doses de N (0, 50, 100, 200 e 300 kg ha -1 de N, na forma de ureia) aplicadas em pré-plantio, com quatro repetições. Houve aumento no ICHL e no IBN e decréscimo no IFLV com o aumento das doses de N. Os índices determinados com o medidor Dualex correlacionaram-se com os teores de N e de clorofila extraível na quarta folha, bem como com o rendimento de tubérculos na safra. O Dualex pode ser utilizado para avaliar o estado nutricional de N em batateira e prognosticar a produtividade de tubérculos.Termos para indexação: Solanum tuberosum, avaliação em tempo real, balanço nutricional, clorofila, compostos fenólicos, flavonóis. Evaluation of potato nitrogen status based on polyphenol and chlorophyll leaf contentAbstract -The objective of this work was to evaluate the effect of N rates on physiological indexes related to nitrogen nutrition in potato, and to verify the possibility of indirectly estimating leaf N contents. Flavonol (FLVI), chlorophyll (CHLI), and the nitrogen balance (NBI) indexes were evaluated, and estimations of leaf N contents were made at 21 and 42 days after emergence using the Dualex leaf-clip instrument. The experiment was carried out from November 2010 to February 2011, in a randomized complete block design, with five N rates (0, 50, 100, 200, and 300 kg ha -1 of N, applied as urea) at pre-planting, and four replicates. There was an increase in CHLI and NBI and a decrease in FLVI with the increasing N doses. The indexes determined with Dualex were correlated with N and extractable chlorophyll content in the fourth leaf and with potato tuber yields. Dualex can be used to evaluate N nutritional status in potato plants, and for the prognosis of final tuber yield with readings.

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Section: Resultsunclassified

Avaliação do estado nutricional do nitrogênio em batateira por meio de polifenóis e clorofila na folha

Coelho

Fontes

Finger

et al. 2012

Pesq. agropec. bras.

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“…A positive correlation between the total phenolic content and water deficit was observed in lettuce (Oh et al 2010) and basil (Khan et al 2012). In studies Studies on broccoli have shown that drought stress can lead to decreased levels of flavonoids (Fortier et al 2010) and phenolic compounds (Robbins et al 2005, Cogo et al 2011. Mao et al (2004) found that drought stress reduced the content of caffeic acid in sweet potato.…”

Section: Effects Of Plant Density and Irrigation On Phenolic Compoundsmentioning

confidence: 99%

“…N N310300239. peratures and nutrient stress can also affect phytochemical content in plants (Rajashekar et al 2009;Fortier et al 2010;Cogo et al 2011;Cheynier et al 2013). These factors largely affect the primary and secondary metabolism of brassica plants, resulting in the enhanced production of certain metabolites, e.g., amino acids, sugars, indoles, phenolic compounds and glucosinolates (Jacobo-Velázquez, Cisneros-Zevallos 2012).…”

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confidence: 99%

The effects of plant density and irrigation on phenolic content in cauliflower

Kałużewicz¹,

Lisiecka²,

Gąsecka³

et al. 2017

Hortic. Sci.

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Kałużewicz A., Lisiecka J., Gąsecka M., Krzesiński W., Spiżewski T., Zaworska A., Frąszczak B. This study was conducted to study the influence of plant density and irrigation on the content of phenolic compounds, i.e., phenolic acids and flavonols in cv. 'Sevilla' cauliflower curds. Levels of phenolic acids and flavonols were in the range of 3.0-6.2 mg and 25.4-87.8 mg/100 g of dry weight, respectively, depending on plant density and irrigation. Of the phenolic acids, caffeic acid was detected in the highest amount, followed by p-coumaric acid, sinapic acid, gallic acid, and ferulic acid. Of the two flavonols detected, the levels of quercetin were higher than those of kaempferol. The content of the detected phenolic acids (with the exception of ferulic acid) and both flavonols increased with increasing plant density. Furthermore, the concentration of phenolic compounds (with the exception of ferulic acid) was significantly higher under irrigation.

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“…There are few literatures dealing with the effect of optimum or low soil water content on the bioactive components of broccoli under field conditions. In an experiment in Quebec, Canada the absence of irrigation significantly increased polyphenolics content in field grown broccoli [29]. Drought stress led to increased aliphatic glucosinolate [30] and flavonoid levels in broccoli [29,31] and Arabidopsis [22] also.…”

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confidence: 99%

Effect of environmental conditions and water status on the bioactive compounds of broccoli

et al. 2013

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Four experiments were carried out in 2010 and 2011 to determine how cultivation period (spring or autumn), harvest season (summer or autumn), and plant water status (irrigated or rainfed) influenced content and composition of broccoli cultivar Parthenon F1 with respect to sulforaphane and phenolics under field conditions in Gödöllő, Hungary. Sulforaphane content was significantly higher in the autumn harvests, regardless of irrigation treatments. Harvest season also influenced total phenolics content, with the highest values occurring in the spring season. Harvest season also affected trolox equivalent antioxidant capacity (TEAC) and this capacity was also the greatest in spring. Caffeic acid glucoside was a major phenolics component in both spring and autumn season harvests. The season and irrigation related changes in other phenolic component contents were also characterised in this study.

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Influence of Irrigation and Nitrogen Fertilization on Broccoli Polyphenolics Concentration

Cited by 35 publications

References 0 publications

Avaliação do estado nutricional do nitrogênio em batateira por meio de polifenóis e clorofila na folha

Avaliação do estado nutricional do nitrogênio em batateira por meio de polifenóis e clorofila na folha

The effects of plant density and irrigation on phenolic content in cauliflower

Effect of environmental conditions and water status on the bioactive compounds of broccoli

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