2010
DOI: 10.1016/j.scienta.2010.03.003
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Nutritional quality of greenhouse lettuce at harvest and after storage in relation to N application and cultivation season

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Cited by 73 publications
(50 citation statements)
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References 33 publications
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“…Similar results in spinach (Spinacia oleracea L.) were previously reported by Conesa et al (2009) and Koh et al (2012). The levels of vitamin C and nitrate in leafy vegetables are two key indices for evaluating their nutritional quality (Konstantopoulou et al, 2010), and vitamin C content in leafy vegetables is mainly controlled by the form and ratio of N (Sørensen et al, 1994). The significant positive correlation between nitrate and vitamin C concentration in water spinach genotypes suggests that it would be difficult to reduce nitrate and increase vitamin C concentration simultaneously, so it is necessary to improve these two traits separately.…”
Section: Discussionsupporting
confidence: 83%
“…Similar results in spinach (Spinacia oleracea L.) were previously reported by Conesa et al (2009) and Koh et al (2012). The levels of vitamin C and nitrate in leafy vegetables are two key indices for evaluating their nutritional quality (Konstantopoulou et al, 2010), and vitamin C content in leafy vegetables is mainly controlled by the form and ratio of N (Sørensen et al, 1994). The significant positive correlation between nitrate and vitamin C concentration in water spinach genotypes suggests that it would be difficult to reduce nitrate and increase vitamin C concentration simultaneously, so it is necessary to improve these two traits separately.…”
Section: Discussionsupporting
confidence: 83%
“…of N, resulted in a slight increase of nitrates content in lettuce leaves during spring comparing to winter growing period, while leaf parts and position may also affect nitrate content (Konstantopoulou et al, 2010). In addition, Sareer, Bernstein, Ahmad, and Umar (2016) have reported that nitrate content in Andrographis paniculata increased significantly with plant development, while Masclaux-Daubresse et al (2010) suggested that increased nitrate contents in leaves could be attributed to nitrogen remobilization to expanding leaves.…”
mentioning
confidence: 99%
“…Estos resultados podrían indicar, que a diferencia de lo expuesto por diversos autores, que señalan que en ciclos estivales, donde la intensidad lumínica es mayor, la actividad de la enzima nitrato reductasa se vería favorecida y la acumulación de nitratos, respecto de ciclos invernales, sería inferior (Gonella et al, 2002;Neely et al, 2010;Konstantopoulou et al, 2010), el factor que tendría una mayor influencia, en nuestras condiciones sería la temperatura, viéndose favorecida la acumulación en aquellas en las que se dieron las más elevadas, lo cual reafirmaría lo obtenido por otros estudios realizados en lechuga romana y minilechuga (Parks et al, 2008;Torres et al, 2013).…”
Section: Discusión De Los Resultadosunclassified
“…En contra de lo que observaron anteriormente determinados autores en lechuga (Gonella et al, 2002;Konstantopoulou et al, 2010), quienes comprobaron que intensidades lumínicas altas favorecían la actividad de la enzima nitrato reductasa y la síntesis de carbohidratos, disminuyendo con ello la acumulación de nitratos, las mayores concentraciones de nitratos en las hojas se obtuvieron en el ciclo primaveral (C2), lo cual podría explicar que en este ciclo, el porcentaje total de nitrógeno en las plantas fuera más elevado.…”
Section: 26discusión De Los Resultadosunclassified
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