<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802022000200193</article-id>
<article-id pub-id-type="doi">10.35196/rfm.2022.2.193</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rendimiento y estado nutrimental de kale (Brassica oleracea) cv. Dwarf Blue Curled Scotch en función de la conductividad eléctrica de la solución nutritiva]]></article-title>
<article-title xml:lang="en"><![CDATA[Yield and nutritional status of kale (Brassica oleracea) cv. Dwarf Blue Curled Scotch as a function of the electrical conductivity of the nutrient solution]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Castillo]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Mendoza]]></surname>
<given-names><![CDATA[María de las Nieves]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Villa]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Cué]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>2</numero>
<fpage>193</fpage>
<lpage>202</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802022000200193&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802022000200193&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802022000200193&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El kale (Brassica oleracea) cv. Dwarf Blue Curled Scotch es una hortaliza de reciente introducción en México. Se desconocen sus requerimientos nutricionales para producción en invernadero e hidroponía. El primer aspecto a investigar para llevar a cabo una producción exitosa en ambientes controlados es elucidar la respuesta del cultivo a la conductividad eléctrica (CE) de la solución nutritiva en su desarrollo y calidad comercial, bajo la hipótesis que a mayor CE de la solución nutritiva habrá mayor rendimiento y concentración nutrimental. Para verificar la hipótesis se estableció un experimento en hidroponía con CE de 0.5, 1.0, 1.5 y 2.0 dS m-1 en la solución nutritiva Steiner, en invernadero en el Campus Montecillo del Colegio de Postgraduados, México. El diseño experimental usado fue completamente al azar con 10 repeticiones. Para la germinación de la semilla se utilizó turba, y el trasplante se realizó 23 días después de la siembra (dds). Las plántulas se trasplantaron en macetas de 6 L con perlita. Los cuatro tratamientos de CE se aplicaron desde el trasplante y la cosecha se realizó a los 54 días después del trasplante. Los resultados indicaron que a mayor CE aumentaron las lecturas SPAD y la concentración de nitrógeno total en la hoja. La altura de planta, ancho de hoja, diámetro de tallo, largo y volumen radical, así como peso fresco de las plantas incrementaron desde 23 hasta 75 % en las soluciones de 1.5 y 2.0 dS m-1, respectivamente. Se concluye que a mayor CE (2.0 dS m-1) se mejora el rendimiento de kale; asimismo, se incrementa la concentración de nitrógeno total, nitratos y lecturas SPAD y disminuye la concentración de Ca, tanto en extracto celular de pecíolo como en tejido de hoja.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY Kale (Brassica oleracea) cv. Dwarf Blue Curled Scotch is a recently introduced vegetable in Mexico. Its nutritional requirements for greenhouse and hydroponics production are unknown. The first aspect to investigate to carry out a successful production in controlled environments is to elucidate the response of the crop to the electrical conductivity (EC) of the nutrient solution in its development and commercial quality, under the hypothesis that the higher the EC of the nutrient solution the higher the yield and the nutritional concentration. To verify the hypothesis, an experiment was established in hydroponics with EC of 0.5, 1.0, 1.5 and 2.0 dS m-1 in the Steiner nutrient solution, in a greenhouse at Campus Montecillo of the Colegio de Postgraduados, Mexico. The experimental design used was completely randomized with 10 replications. Peat was used for seed germination, and the transplant was carried out 23 days after sowing. Seedlings were transplanted into 6 L pots with perlite. The four EC treatments were applied from the transplant and the harvest was carried out 54 days after transplant. Results indicated that the higher the EC, the SPAD readings and the total nitrogen concentration in the leaf increased. Plant height, leaf width, stem diameter, length and root volume, as well as fresh weight of the whole plant increased from 23 to 75 % in the solutions of 1.5 and 2.0 dS m-1, respectively. It is concluded that a higher EC (2.0 dS m-1) improves kale yield; likewise, the concentration of total nitrogen, nitrates and SPAD readings are increased and the concentration of Ca decreases in the petiole cell extract and in leaf tissue.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Concentración nutrimental]]></kwd>
<kwd lng="es"><![CDATA[extracto celular de pecíolo]]></kwd>
<kwd lng="es"><![CDATA[hidroponía]]></kwd>
<kwd lng="es"><![CDATA[perlita]]></kwd>
<kwd lng="en"><![CDATA[Hydroponics]]></kwd>
<kwd lng="en"><![CDATA[nutrient concentration]]></kwd>
<kwd lng="en"><![CDATA[perlite]]></kwd>
<kwd lng="en"><![CDATA[petiole sap]]></kwd>
</kwd-group>
</article-meta>
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