<?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>0120-9965</journal-id>
<journal-title><![CDATA[Agronomía Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. colomb.]]></abbrev-journal-title>
<issn>0120-9965</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Agronomía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-99652021000100059</article-id>
<article-id pub-id-type="doi">10.15446/agron.colomb.v39n1.88159</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Content and distribution of micronutrients in calendula (Calendula officinalis) grown in Valle del Cauca, Colombia]]></article-title>
<article-title xml:lang="es"><![CDATA[Contenido y distribución de micronutrientes en caléndula (Calendula officinalis) cultivada en el Valle del Cauca, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa-Rodrigues]]></surname>
<given-names><![CDATA[Breno Augusto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Vivas]]></surname>
<given-names><![CDATA[Yuly Samanta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Menjivar-Flores]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bonilla-Correa]]></surname>
<given-names><![CDATA[Carmen Rosa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Honduras Department of Soils, National Autonomous ]]></institution>
<addr-line><![CDATA[La Ceiba ]]></addr-line>
<country>Honduras</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Palmira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Agrarias ]]></institution>
<addr-line><![CDATA[Bogota ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>39</volume>
<numero>1</numero>
<fpage>59</fpage>
<lpage>67</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99652021000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99652021000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99652021000100059&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Calendula productivity depends on the nutritional demands of the crop. Knowledge of the nutritional requirements of calendula at its different phenological stages will allow the producer to improve fertilization programs. The objective of this research was to evaluate the content and distribution of essential micronutrients and beneficial elements in different organs and stages of development of calendula under field conditions. An experiment was set up in the municipality of Yumbo, in the Department of Valle del Cauca in Colombia, using a completely randomized design with five treatments related to the stage of development of the plants (2, 3, 5, 6 and 7 months after transplanting). Each treatment had three replicates. Leaves, stems, flowers and seeds were collected every month after transplanting to analyze the concentrations of Mn, Fe, Zn, Cu, B, and Na. The concentration of nutrients differed significantly between organs and stages of development. Calendula accumulated nutrients in descending order (from highest to lowest) as follows: Na&gt;Fe&gt;Mn&gt;B&gt;Zn&gt;Cu. The highest concentrations of Na, Mn, Zn, B and Cu were found in the leaves and of Fe in the flowers. Among the phenological stages, the highest values of Na were recorded in the second and sixth months, B and Fe in the fifth month, Cu and Zn in the third month, and Mn in the third and fifth months. Thus, the stages and organs on the plant with the greatest nutrient accumulation were identified.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La productividad de la caléndula depende de la demanda de nutrientes por parte del cultivo. El conocimiento de los requerimientos nutricionales de la caléndula en sus diferentes estados fenológicos permitirá al productor mejorar los programas de fertilización. El objetivo de esta investigación fue evaluar el contenido y distribución de micronutrientes esenciales y elementos benéficos en diferentes órganos y etapas de desarrollo de la caléndula en condiciones de campo. Un experimento se llevó a cabo en el municipio de Yumbo, en el departamento de Valle del Cauca en Colombia, utilizando un diseño completamente al azar con cinco tratamientos relacionados con el estado de desarrollo de las plantas (2, 3, 5, 6 y 7 meses después del trasplante). Cada tratamiento tuvo tres repeticiones. Se recolectaron las hojas, tallos, flores y semillas en cada mes después del trasplante para analizar las concentraciones de Mn, Fe, Zn, Cu, B y Na. La concentración de nutrientes difirió significativamente entre los órganos y etapas de desarrollo. La caléndula acumuló nutrientes en orden descendente (de mayor a menor) de la siguiente forma: Na&gt;Fe&gt;Mn&gt;B&gt;Zn&gt;Cu. Las mayores concentraciones de Na, Mn, Zn, B y Cu se encontraron en las hojas y de Fe en las flores. Entre las etapas fenológicas, los mayores valores de Na se registraron en el segundo y sexto mes, de B y Fe en el quinto, de Cu y Zn en el tercero, y de Mn en el tercer y quinto mes. De esta forma se identificaron las etapas y órganos en la planta con mayor acumulación de nutrientes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Calendula officinalis]]></kwd>
<kwd lng="en"><![CDATA[medicinal plants]]></kwd>
<kwd lng="en"><![CDATA[nutrients]]></kwd>
<kwd lng="en"><![CDATA[Asteraceae]]></kwd>
<kwd lng="en"><![CDATA[mineral nutrition]]></kwd>
<kwd lng="es"><![CDATA[Caléndula officinalis]]></kwd>
<kwd lng="es"><![CDATA[plantas medicinales]]></kwd>
<kwd lng="es"><![CDATA[nutrientes]]></kwd>
<kwd lng="es"><![CDATA[Asteraceae]]></kwd>
<kwd lng="es"><![CDATA[nutrición mineral]]></kwd>
</kwd-group>
</article-meta>
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