<?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>2007-1132</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. forestales]]></abbrev-journal-title>
<issn>2007-1132</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11322017000200089</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Frutos y semillas de Bursera heliae Rzed. &amp; Calderón, endémica de Oaxaca y su relación con factores de sitio]]></article-title>
<article-title xml:lang="en"><![CDATA[Fruits and seeds of Bursera heliae Rzed. &amp; Calderón, an endemic species of Oaxaca and its relationship with site factors]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Cortes]]></surname>
<given-names><![CDATA[Leonel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Ortiz]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enríquez del Valle]]></surname>
<given-names><![CDATA[José Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Upton]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velasco Velasco]]></surname>
<given-names><![CDATA[Vicente Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico del Valle de Oaxaca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>40</numero>
<fpage>89</fpage>
<lpage>103</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322017000200089&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322017000200089&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322017000200089&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Bursera heliae, especie arbórea predominante en la selva baja caducifolia de Oaxaca, tiene problemas de regeneración mediante semillas debido a la presencia de alteraciones de su hábitat natural y a la sobreexplotación de sus poblaciones. El objetivo de esta investigación fue caracterizar los frutos-semillas y relacionar variables de sitio, en árboles de B. heliae seleccionados fenotípicamente en la comunidad de Santa María Zoquitlán, Oaxaca. Durante 2015 se realizaron muestreos dirigidos en los que se identificaron e inventariaron 17 árboles, y se recolectaron sus frutos y semillas. En una muestra aleatoria de 50 frutos y 50 semillas árbol-1 se registraron los siguientes datos: diámetro polar y ecuatorial (mm), peso (g) y cantidad de semillas por kilogramo. Se realizaron análisis de varianza, pruebas de medias (Tukey, 0.05), análisis de correlación y análisis clúster, entre progenitores. Los resultados indicaron que los individuos seleccionados tuvieron tamaños de 89.6± 28.2 en altura; 4.2± 1.1 cm de diámetro normal; 5.1± 1.7 m de diámetro de copa y 23.2± 5.0 m2 de área de copa. En función del árbol del cual que se cosecharon los frutos, varió el tamaño entre 0.82± 0.65 cm en diámetro y peso, 0.329± 0.07 g; mientras que el tamaño de las semillas correspondió a un intervalo de 0.57± 0.46 cm, y, el peso a 0.104± 0.08 g. La especie contiene 9 989±1 768 semillas por kilogramo. Se obtuvieron correlaciones de las características de sitio y dasométricas del árbol, con las los de frutos y semillas. Se recomienda colectar semillas de árboles con fenotipo sobresaliente 7, 10, 12 como paso previo para propagar y establecer plantaciones de la especie, así como realizar pruebas de progenies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Bursera heliae, a prevalent tree species in the low deciduous forest of Oaxaca, has problems to regenerate through seeds, due to disturbances in its natural habitat and to the overexploitation of its populations. The objective of this research was to characterize the fruits-seeds and to relate site variables in individuals selected phenotypically in Santa María Zoquitlán, Oaxaca. Directed samplings carried out in 2015 identified and inventoried 17 trees, and the following parameters were registered in a random sample of 50 fruits and 500 seeds per tree: the polar and equatorial diameters (mm), weight (g), and number of seeds per kilogram. Mean tests (Tukey, 0.05) and variance, correlation and cluster analyses were applied among parent trees. The results indicated heights of 89.6± 28.2; normal diameters of 4.2±1.1 cm; crown diameters of 5.1±1.7 m, and crown surface areas of 23.2±15.0 m2. The range of the fruit diameter was 0.82± 0.65 cm, and the weight of the fruits was 0.329± 0.07 g, while the diameter of the seeds was 0.57± 0.46 cm, and their weight was 0.104± 0.08 g, according to the size of the tree. The species contains 9 989 ± 1 768 seeds per kilogram. Correlations of the site and dasometric characteristics with those of the fruits and seeds were obtained. Collection of seeds from trees with outstanding phenotypes 7, 10 and 12 and progeny tests are recommended as a previous step to the propagation and establishment of B. heliae plantations.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Árbol progenitor]]></kwd>
<kwd lng="es"><![CDATA[Bursera heliae Rzed. &amp; Calderón]]></kwd>
<kwd lng="es"><![CDATA[características de sitio]]></kwd>
<kwd lng="es"><![CDATA[fenotipo]]></kwd>
<kwd lng="es"><![CDATA[selva baja caducifolia]]></kwd>
<kwd lng="es"><![CDATA[variable dasométrica]]></kwd>
<kwd lng="en"><![CDATA[Parent tree]]></kwd>
<kwd lng="en"><![CDATA[Bursera heliae Rzed. &amp; Calderón]]></kwd>
<kwd lng="en"><![CDATA[site characteristics]]></kwd>
<kwd lng="en"><![CDATA[phenotype]]></kwd>
<kwd lng="en"><![CDATA[low deciduous forest]]></kwd>
<kwd lng="en"><![CDATA[dasometric variable]]></kwd>
</kwd-group>
</article-meta>
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