<?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>2011-2173</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Hortícolas]]></journal-title>
<abbrev-journal-title><![CDATA[rev.colomb.cienc.hortic.]]></abbrev-journal-title>
<issn>2011-2173</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Ciencias Hotícolas, Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2011-21732018000100223</article-id>
<article-id pub-id-type="doi">10.17584/rcch.2018v12i1.7341</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desempeño fisiológico de nueve genotipos de cacao (Theobroma cacao L.) bajo la sombra de tres especies forestales en Santander, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Physiological performance of nine cacao (Theobroma cacao L.) genotypes under the shadow of three forest species in Santander, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Agudelo-Castañeda]]></surname>
<given-names><![CDATA[Genaro Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cadena-Torres]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almanza-Merchán]]></surname>
<given-names><![CDATA[Pedro José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinzón-Sandoval]]></surname>
<given-names><![CDATA[Elberth Hernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria Centro de Investigación La Suiza ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria Centro de Investigación Turipaná ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia Facultad de Ciencias Agropecuarias Grupo de Investigaciones Agrícolas]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia Facultad de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>223</fpage>
<lpage>232</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2011-21732018000100223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2011-21732018000100223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2011-21732018000100223&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la actualidad, Colombia tiene 173.000 ha cultivadas con Theobroma cacao, de las cuales la mayoría están establecidas en asocio con árboles frutales o maderables, además de proveer sombra pueden generar ingresos para el cacaocultor. Para seleccionar especies que conforman el arreglo agroforestal, es necesario considerar los requerimientos ecofisiológicos de los genotipos de cacao y la interacción con su entorno agroecológico, incluido el sombrío. El objetivo de esta investigación fue evaluar el rendimiento fisiológico de nueve clones de cacao establecidos en sistema agroforestal con Cariniana pyriformis, Hevea brasiliensis en El Carmen de Chucurí y C. pyriformis, Tectona grandis en Rionegro, Santander. Se realizó seguimiento a la tasa de fotosíntesis, transpiración, conductancia estomática y uso eficiente del agua, tanto en la época húmeda, como en la seca. Los resultados mostraron que los sistemas de sombrío influyen sobre las tasas de fotosíntesis que presentan las plantas de cacao. Estos clones establecidos bajo el sistema de sombrío con C. pyriformis, presentan mayores tasas de fotosíntesis (5,39 µmoles CO2 m-2 s-1), en la época húmeda y seca. Lo anterior se atribuyó al tipo de crecimiento y sombra proveída por esta especie, que ofrece mejores condiciones ambientales para el desempe ño fisiológico del cacao. Se recomienda esta especie forestal como sombrío, para el establecimiento de nuevas áreas de cacao en el departamento de Santander. Individualmente, los clones de cacao con el mejor comportamiento ecofisiológico fueron TCS19 y TCS13, por lo que se constituyen en genotipos de importancia agronómica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT At present, Colombia has 173,000 ha cultivated with Theobroma cacao, most of which are established in association with fruit or timber trees that provide shade, that can generate income for cocoa growers. In order to select species that make up the agroforestry system, it is necessary to consider the ecophysiological requirements of T. cacao geno types and the interaction with the agroecological environment, including shade. The objective of this research was to evaluate the physiological performance of nine cocoa clones established in an agroforestry system with Cariniana piryformis, Hevea brasiliensis (Carmen) Cariniana piryformis, and Tectonagrandis (Rionegro, Santander province). The photosynthesis rates, transpiration, stomatal conductance and efficient use of water in cocoa clones was monito red in the wet and dry season. The results showed that shade systems influence the photosynthetic rates of cocoa plants. The clones established under the shade system with C. piryformis presented higher rates of photosynthesis (5.39 µmoles CO2 m-2 s-1), both in the wet season and in the dry season. This was attributed to the type of growth and shade provided by this species, which offers better environmental conditions for the physiological performance of cocoa. As a result, this forest species is recommended for shading in the establishment of new areas of T. cacao in the Department of Santander. Individually, the cocoa clones with better echophysiological behavior included TCS19 and TCS13, making their genotypes agronomically important.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agroforestería]]></kwd>
<kwd lng="es"><![CDATA[cultivares de cacao]]></kwd>
<kwd lng="es"><![CDATA[producción de cultivos]]></kwd>
<kwd lng="es"><![CDATA[Cariniana pyriformis]]></kwd>
<kwd lng="es"><![CDATA[variación estacional]]></kwd>
<kwd lng="es"><![CDATA[respuesta fisiológica]]></kwd>
<kwd lng="en"><![CDATA[agroforestry]]></kwd>
<kwd lng="en"><![CDATA[cocoa cultivars]]></kwd>
<kwd lng="en"><![CDATA[crop production]]></kwd>
<kwd lng="en"><![CDATA[Cariniana pyriformis]]></kwd>
<kwd lng="en"><![CDATA[seasonal variation physiological response]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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