<?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>2310-3469</journal-id>
<journal-title><![CDATA[Revista Cubana de Ciencias Forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev cubana ciencias forestales]]></abbrev-journal-title>
<issn>2310-3469</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Pinar del Río Hermanos Saíz Montes de Oca]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2310-34692019000200225</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diferencias anatómicas en acículas de Pinus tropicalis Morelet en edátopos extremos de pizarras y arenas blancas en Pinar del Río]]></article-title>
<article-title xml:lang="en"><![CDATA[Needles anatomical differences of Pinus tropicalis Morelet in extreme soil of slate and white sandy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Del Valle]]></surname>
<given-names><![CDATA[Liutmila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Geada López]]></surname>
<given-names><![CDATA[Gretel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sotolongo-Sospedra]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Pinar del Río "Hermanos Saíz Montes de Oca"  ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>7</volume>
<numero>2</numero>
<fpage>225</fpage>
<lpage>239</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2310-34692019000200225&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2310-34692019000200225&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2310-34692019000200225&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN P. tropicalis es una especie endémica del occidente de Cuba, priorizada en los Planes de Desarrollo Forestal hasta el 2030. Se desarrolla en edátopos muy contrastantes de arenas blancas y pizarras, por lo que a lo largo de los años debe mostrar diferencias anatómicas que le permitan crecer. El estudio tuvo como objetivo caracterizar la variación anatómica en cortes transversales de las acículas de la especie en tres localidades de Pinar del Río. Se detectaron diferencias en las variables anatómicas de las acículas. Las variables número de estomas, grosor de la hipodermis y número de canales resiníferos logran separar la localidad San Ubaldo sobre arenas blancas de las restantes. El análisis de discriminante muestra con un 87 % de certeza la clasificación de los casos en cada una de las localidades de colecta (a priori) y las variables número de estomas, número de canales, grosor de cutícula y grosor de hipodermis las más discriminantes. Preliminarmente se infiere que las condiciones edáficas y la disponibilidad de agua influyen en la anatomía foliar.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT P. tropicalis is a species endemic to western Cuba, prioritized in Forest Development Plans until 2030. It develops in very contrasting edatopes of white sands and slates, so over the years it must show anatomical differences that allow it to grow. The objective of the study was to characterize the anatomical variation in transversal cuts of the needles of the species in three localities of Pinar del Río. Differences were detected in the anatomical variables of the needles. The variables number of stomas, thickness of the hypodermis and number of resin channels separate San Ubaldo on white sands from the rest. The discriminant analysis shows with 87 % certainty the classification of the cases in each of the collection localities (a priori) and the variables number of stomata, number of channels, cuticle thickness and thickness of hypodermis the most discriminant. Preliminarily it is inferred that soil conditions and water availability influence foliar anatomy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pinus tropicalis]]></kwd>
<kwd lng="es"><![CDATA[anatomía de las acículas]]></kwd>
<kwd lng="es"><![CDATA[variación anatómica.]]></kwd>
<kwd lng="en"><![CDATA[Pinus tropicalis]]></kwd>
<kwd lng="en"><![CDATA[needle anatomy]]></kwd>
<kwd lng="en"><![CDATA[anatomical variation.]]></kwd>
</kwd-group>
</article-meta>
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