2019
DOI: 10.35196/rfm.2019.1.21-29
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Crecimiento Y Acumulación De No3- En Lechuga Hidropónica Con Relaciones Nitrato/Amonio en Dos Estaciones De Cultivo

Abstract: La lechuga (Lactuca sativa L.) es una hortaliza de hoja que en México genera un importante ingreso económico; sin embargo, los altos niveles de nitratos (NO3-)  pueden ocasionar problemas de salud, ya que generan compuestos carcinogénicos. Una alternativa para disminuir el NO3- en hojas es sustituyéndolo por amonio (NH4+), lo que podría beneficiar la salud humana reduciendo la ingesta de NO3-. El objetivo del presente estudio fue evaluar el crecimiento y acumulación de NO3- en lechuga con diferentes relaciones… Show more

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Cited by 5 publications
(3 citation statements)
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“…In this sense, Llanderal [ 40 ] found that the concentration of nutrients in the petiole cell extract is a function of the level of ion demand for some physiological processes, such as absorption, bioassimilation and storage of nutrients. In addition to the climatic conditions during the growing seasons and the fertilizer used, as mentioned by Lara-Izaguirre [ 41 ], in lettuce with different ratios of NO 3 − /NH 4 + , 5431 (mg L −1 ) of NO 3 − was found in the summer and 2416 (mg L −1 ) in autumn. On the other hand, in the soil the decrease in the ionic solution is due to the fact that the plants showed a greater assimilation in certain phenological stages or to the lower depth of leaching [ 42 ].…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…In this sense, Llanderal [ 40 ] found that the concentration of nutrients in the petiole cell extract is a function of the level of ion demand for some physiological processes, such as absorption, bioassimilation and storage of nutrients. In addition to the climatic conditions during the growing seasons and the fertilizer used, as mentioned by Lara-Izaguirre [ 41 ], in lettuce with different ratios of NO 3 − /NH 4 + , 5431 (mg L −1 ) of NO 3 − was found in the summer and 2416 (mg L −1 ) in autumn. On the other hand, in the soil the decrease in the ionic solution is due to the fact that the plants showed a greater assimilation in certain phenological stages or to the lower depth of leaching [ 42 ].…”
Section: Resultsmentioning
confidence: 99%
“…The SPAD is used to estimate the concentration of N in lettuce plants [43], and at higher doses of N, the higher the photosynthetic efficiency of the plant, the higher the SPAD units [44]. The effect of SPAD in lettuce does not vary in relation to the doses of NO 3 − /NH 4 + , but it does vary when cultivating in different cycles: values of 39.38 in autumn and 29.58 in summer [41]. Drip irrigation makes the use of nanofertilizers in lettuce more efficient by increasing 25% of SPAD units (38 to 44) compared to the control applied to the soil (30)(31)(32)(33)(34)(35) [35].…”
Section: Spad Unitsmentioning
confidence: 99%
“…La absorción de nitrógeno por las plantas es en forma de NO 3 y NH 4 + , ambos pueden estar presentes en una solución nutritiva (Lara-Izaguirre et al, 2019). Una concentración adecuada de estos iones incrementa el crecimiento en relación con la altura de planta, biomasa y el rendimiento de los cultivos (Chang et al, 2010;Chen et al, 2015;.…”
Section: Introductionunclassified