<?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>0123-4226</journal-id>
<journal-title><![CDATA[Revista U.D.C.A Actualidad & Divulgación Científica]]></journal-title>
<abbrev-journal-title><![CDATA[rev.udcaactual.divulg.cient.]]></abbrev-journal-title>
<issn>0123-4226</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Aplicadas y Ambientales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-42262021000100004</article-id>
<article-id pub-id-type="doi">10.31910/rudca.v24.n1.2021.1643</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del pH sobre la concentración de nutrientes en cacao (Theobroma cacao L.) en la Amazonia Colombiana]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of pH on the nutrient concentration in cocoa (Theobroma cacao L.) in the Colombian Amazon]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-Patiño]]></surname>
<given-names><![CDATA[Gelber]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Puentes-Páramo]]></surname>
<given-names><![CDATA[Yina Jazbleidi]]></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-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la Amazonía  ]]></institution>
<addr-line><![CDATA[Florencia Caquetá]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Consultor independiente  ]]></institution>
<addr-line><![CDATA[Palmira Valle del Cauca]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Palmira Valle del Cauca]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>24</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-42262021000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-42262021000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-42262021000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La acidez del suelo limita la disponibilidad, la absorción y la concentración de nutrientes y el rendimiento del cultivo de cacao. El objetivo fue evaluar el efecto del pH del suelo sobre la concentración de nutrientes en hoja, cáscara y grano, para cuatro clones de cacao autocompatibles (ICS-1, CCN-51) y autoincompatibles (ICS-39, TSH-565), en el departamento del Caquetá. El diseño experimental consistió en un arreglo factorial con cuatro clones (factor A), cuatro niveles de pH y fertilidad (factor B) y cuatro repeticiones. Los resultados indican diferencias en la concentración de nutrientes por efecto del clon y tratamiento, siendo la acumulación de N, P y Mg en grano&gt;hoja&gt;cáscara, K en cáscara&gt;hoja&gt;grano, Ca, Fe, Mn, Zn y B en hoja&gt;cáscara&gt;grano, S en cáscara&gt;hoja&gt;grano y Cu en grano&gt;cáscara&gt;hoja. La concentración de P, Mg y S fue mayor y, a su vez, menor Mn, cuando aumentó el pH. El orden de extracción nutrimental en grano fue N&gt;K&gt;P&gt;Mg&gt;S&gt;Ca&gt;Fe&gt;Mn&gt;Zn&gt;Cu&gt;B. Con relación a los clones, CCN-51 presentó habilidad para la toma de nutrientes y alcanzar mayores producciones, incluso, en suelos con pH &#8805; 5,5, lo que sugiere efecto de las condiciones edafoclimáticas y, por lo tanto, la necesidad de evaluar los clones para cada zona de cultivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The soil acidity limits availability, absorption and concentration of nutrients and yield of the cocoa crop. The objective was to evaluate the effect of soil pH on the concentration of macro and micronutrients in leaf, husk and grain for four cocoa clones, self-compatible (ICS-1, CCN-51) and self-incompatible (ICS-39, TSH-565) in the department of Caquetá. The experimental design consisted in a factorial arrangement with four clones (factor A), four pH and fertility levels (factor B) and four repetitions. The results indicate differences in the concentration of nutrients due to the effect of the clone and the treatment, being the accumulation of N, P and Mg in grain&gt;leaf&gt;husk, K in husk&gt;leaf&gt;grain, Ca, Fe, Mn, Zn y B in leaf&gt;husk&gt;grain, S in husk&gt;leaf&gt;grain and Cu in grain&gt;husk&gt;leaf. The concentration of P, Mg and S was higher, and in turn Mn lower, when the pH increased. The order of nutrient extraction in grain was N&gt;K&gt;P&gt;Mg&gt;S&gt;Ca&gt;Fe&gt;Mn&gt;Zn&gt;Cu&gt;B. Regarding clones, CCN-51 showed ability to take nutrients and reach higher productions, even in soils with pH &#8805; 5.5, suggesting effect of edaphoclimatic conditions, and therefore, the need to evaluate the clones for each growing area.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Propiedades suelo]]></kwd>
<kwd lng="es"><![CDATA[Absorción sustancia nutritivas]]></kwd>
<kwd lng="es"><![CDATA[Disponibilidad nutrientes]]></kwd>
<kwd lng="es"><![CDATA[Análisis tejidos]]></kwd>
<kwd lng="es"><![CDATA[Suelos ácidos]]></kwd>
<kwd lng="en"><![CDATA[Soil properties]]></kwd>
<kwd lng="en"><![CDATA[Nutrient uptake]]></kwd>
<kwd lng="en"><![CDATA[Tissue analysis]]></kwd>
<kwd lng="en"><![CDATA[Nutrient availability]]></kwd>
<kwd lng="en"><![CDATA[Acid soils]]></kwd>
</kwd-group>
</article-meta>
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