2021
DOI: 10.3390/agriculture11040315
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Abstract: The goal of this research was to investigate the effect of electrical conductivity (EC) levels of the nutrient solution on the fresh weight, chlorophyll, and nitrate content of hydroponic-system-grown lettuce. The selected cultivars are the most representative commercial varieties grown for European markets. Seven cultivars (‘Sintia,’ ‘Limeira,’ ‘Corentine,’ ‘Cencibel,’ ‘Kiber,’ ‘Attiraï,’ and ‘Rouxaï’) of three Lactuca sativa L. types’ (butterhead, loose leaf, and oak leaf) were grown in a phytotron in rockwo… Show more

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Cited by 16 publications
(7 citation statements)
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“…Our finding showed that there is a relationship between EC level and chlorophyll content. These finding was in accordance with Rosa-Rodríguez et al [39], Xu and Mou [40], and Kappel, et al [41], who also indicated there is a relationship between EC levels and total chlorophyll concentration. In our study, we have also determined the nitrogen concentration of leaves.…”
Section: Discussionsupporting
confidence: 90%
“…Our finding showed that there is a relationship between EC level and chlorophyll content. These finding was in accordance with Rosa-Rodríguez et al [39], Xu and Mou [40], and Kappel, et al [41], who also indicated there is a relationship between EC levels and total chlorophyll concentration. In our study, we have also determined the nitrogen concentration of leaves.…”
Section: Discussionsupporting
confidence: 90%
“…At the highest NaCl concentration in the nutrient solution the nitrate content decreased by 18.9% and 19%, respectively. The effect of salinity on the nitrate content of lettuce leaves may be variety specific [55]. According to Liu and Shelp [56], chlorides could be used in a commercial strategy to decrease the nitrate content in vegetables, especially in those classified as nitrate accumulators, e.g., lettuce.…”
Section: The Influence Of Increasing Sodium Chloride Concentrations O...mentioning
confidence: 99%
“…An excessive nitrate supply may inhibit growth if it exceeds genotype specific thresholds. This effect has been well documented, often leading to growth retardation in shoot and root [ 11 , 12 , 13 ]. In addition to a range of metabolic perturbations [ 14 ], nitro-oxidative effects were implicated as an underlying mechanism in high nitrate stress [ 15 ].…”
Section: Introductionmentioning
confidence: 99%