<?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>0304-2847</journal-id>
<journal-title><![CDATA[Revista Facultad Nacional de Agronomía Medellín]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Fac. Nac. Agron. Medellín]]></abbrev-journal-title>
<issn>0304-2847</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias - Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0304-28472020000109019</article-id>
<article-id pub-id-type="doi">10.15446/rfnam.v73n1.77735</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Morphological characterization of the red dragon fruit - Selenicereus undatus (Haw.) D.R. Hunt - under growing conditions in the municipality of San Jerónimo (Antioquia, Colombia)]]></article-title>
<article-title xml:lang="es"><![CDATA[Caracterización morfológica de pitaya roja - Selenicereus undatus (Haw.) D.R. Hunt - en condiciones de cultivo en el municipio de San Jerónimo (Antioquia, Colombia)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Betancur G.]]></surname>
<given-names><![CDATA[Jorge Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muriel R.]]></surname>
<given-names><![CDATA[Sandra Bibiana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González J.]]></surname>
<given-names><![CDATA[Elena Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Politécnico Colombiano Jaime Isaza Cadavid Facultad de Ciencias Agrarias ]]></institution>
<addr-line><![CDATA[Medellín Antioquia]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2020</year>
</pub-date>
<volume>73</volume>
<numero>1</numero>
<fpage>9019</fpage>
<lpage>9027</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0304-28472020000109019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0304-28472020000109019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0304-28472020000109019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[RESUMEN The red dragon fruit Selenicereus undatus is a native fruit from the Americas. Its growing appeal in the international market as an exotic fruit highlights the relevance of the crop for the local economies. In Colombia, the high diversity within the genus and species makes it difficult to have reliable materials for propagation as cultivars. This agronomic challenge requires more studies of the distribution and real diversity within the genus Selenicereus sp. Due to the information aforementioned, the fruit is harvested in small localities as an extraction production system. This project aimed to morphologically characterize the working collection of red dragon fruit under growing conditions in the Municipality of San Jerónimo. It contained 30 accessions from the departments of Antioquia, Córdoba, and Valle del Cauca. Twenty-one characters of cladode, flower, and fruit were quantified to assess the diversity, and a restricted cluster analysis was performed to understand the morphological richness of the materials. As a result, it was observed differences in terms of stems, such as distance between areolas and width of cladode. This was also observed in flowers, in which their total length, the width of petals, the presence of trichomes, the color of calyx and petals, and the color of the stigma were different. Also, differences were recorded in the fruit. Characteristics such as weight and color of its skin were assessed, resulting in fruit size medium to small. Regarding other properties, total soluble solids varied between 11.2 to 15.6 °Brix. 55% of the fruits have measurements that fit market requirements. Finally, three accessions match the requirements of weight and °Brix, to be used as possible genotypes by commercial growers; however, studies about agronomic management strategies that favor an increase in fruit weight must be done.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[ABSTRACT La pitaya roja Selenicereus undatus, es una planta originaria de América, con potencial como fruta exótica, ya que es apreciada en el mercado internacional. En Colombia crece naturalmente en zonas cálidas y no se tiene claridad sobre las especies que existen, ya que este género presenta mucha hibridación intra e interespecífica, hace falta más estudios en este campo además de verificar los genotipos en otras zonas donde hay reportes de la especie. Su producción se hace de forma extractiva o en pequeñas áreas de cultivo. Este trabajo tuvo como objetivo la caracterización morfológica de la colección de trabajo de pitaya roja en condiciones de cultivo en el Municipio de San Jerónimo. El cultivo corresponde a 30 accesiones de los departamentos de Antioquia, Córdoba y el Valle del Cauca. Para ello, se evaluaron 21 caracteres de cladodio, flor y fruto. Se realizó un análisis de cluster restringido, donde se encontró que las accesiones difirieron en la distancia entre areolas y ancho de cladodio; en longitud total de las flores, ancho de pétalos, presencia de tricomas, color de cáliz y de pétalos, color y longitud del estigma; en peso del fruto y color de la cáscara. Los frutos presentan un tamaño mediano a pequeño. El contenido de solidos solubles totales varió entre 11.2 a 15.6 °Brix, siendo el 55% de los frutos los que presentaron los valores exigidos por el mercado. Por las variables peso y °Brix, tres accesiones cumplen con los requisitos para ser sembradas comercialmente, sin embargo es necesario evaluar una modificación en las labores de cultivo para tratar de aumentar el tamaño de los frutos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cactaceae]]></kwd>
<kwd lng="es"><![CDATA[Caracterización]]></kwd>
<kwd lng="es"><![CDATA[Diversidad]]></kwd>
<kwd lng="es"><![CDATA[Especie promisoria]]></kwd>
<kwd lng="es"><![CDATA[Selenicereus undatus]]></kwd>
<kwd lng="en"><![CDATA[Cactaceae]]></kwd>
<kwd lng="en"><![CDATA[Characterization]]></kwd>
<kwd lng="en"><![CDATA[Diversity]]></kwd>
<kwd lng="en"><![CDATA[Promising species]]></kwd>
<kwd lng="en"><![CDATA[Selenicereus undatus]]></kwd>
</kwd-group>
</article-meta>
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<page-range>437-40</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
