<?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 CFORES]]></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>S2310-34692024000200003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia de tres tratamientos pregerminativos en la germinación de las semillas de Ochroma pyramidale (Cav. ex Lam.)]]></article-title>
<article-title xml:lang="pt"><![CDATA[Influência de três tratamentos pré-germinativos na germinação de sementes de Ochroma pyramidale (Cav. ex Lam.).]]></article-title>
<article-title xml:lang="en"><![CDATA[Influence of three pregerminative treatments in the germination of Ochroma seeds pyramidale (Cav. ex Lam.)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paredes-Ulloa]]></surname>
<given-names><![CDATA[Christopher Oswaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado Cuzco]]></surname>
<given-names><![CDATA[Jessica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dago Dueñas]]></surname>
<given-names><![CDATA[Yusniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sucoshañay-Villalba]]></surname>
<given-names><![CDATA[Darwin Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Estatal Amazónica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<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>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<volume>12</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2310-34692024000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2310-34692024000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2310-34692024000200003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El presente estudio se realizó en la Universidad Estatal Amazónica durante el mes de junio, con el objetivo de evaluar la influencia de tres tratamientos pregerminativos en la germinación de la semilla de Ochroma pyramidale (Cav. ex Lam.). Se estableció un experimento para determinar el porciento de germinación y la velocidad de germinación de las semillas de O. pyramidale sometidas a los siguientes tratamientos: hervir la semilla en agua a una temperatura de 100 0C durante 20 segundos, lijado de las semillas hasta que pierda su brillo natural, inmersión en ácido clorhídrico al 30 % durante 32 minutos y un tratamiento control. Se realizó un diseño completamente al azar donde se montaron cuatro tratamientos con tres replicas y 30 unidades a observar dando un total de 120 unidades observadas. Se evaluó el porciento de germinación, índice de velocidad de germinación y la dinámica de germinación. Concluyendo que los tratamientos T2 (hervir en agua 100 °C durante 20 segundos) y T4 (inmersión en ácido clorhídrico al 30 % durante 32 minutos) fueron los de mejor comportamiento alcanzando un porciento de germinación de 97 y 96 % respectivamente, alcanzando los picos máximos de germinación a partir de los ocho días después de aplicado el tratamiento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO O presente estudo foi realizado na Universidade Estadual do Amazonas durante o mês de junho, com o objetivo de avaliar a influência de três tratamentos pré-germinativos na germinação de sementes de Ochroma piramidale (Cav. ex Lam.). Foi estabelecido um experimento para determinar a porcentagem e velocidade de germinação de sementes de O. piramidale submetidas aos seguintes tratamentos: fervura da semente em água à temperatura de 100 0C por 20 segundos, lixamento das sementes até perderem o brilho natural, imersão em Ácido clorídrico 30% por 32 minutos e tratamento controle. Foi realizado um delineamento inteiramente casualizado onde foram montados quatro tratamentos com três repetições e 30 unidades a serem observadas, totalizando 120 unidades observadas. Foram avaliados a porcentagem de germinação, o índice de velocidade de germinação e a dinâmica de germinação. Concluindo que os tratamentos T2 (fervura em água a 100 °C por 20 segundos) e T4 (imersão em ácido clorídrico 30% por 32 minutos) foram os de melhor desempenho, atingindo percentual de germinação de 97 e 96% respectivamente, atingindo os picos máximos de germinação começando oito dias após a aplicação do tratamento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The present study was carried out the Amazonian State University during the month of June, with the objective of evaluating the influence of three pregerminative treatments in the germination of Ochroma pyramidale (Cav. ex Lam.) seed. An experiment was established to determine the germination percentage and germination speed of O. pyramidale seeds. subjected to the following treatments: boiling the seed in water at a temperature of 100 0 C for 20 seconds, sanding the seeds until they lose their natural shine, immersion in 30% hydrochloric acid for 32 minutes and a control treatment. A completely randomized design was done where four treatments were set up with three replicates and 30 units to be observed, giving a total of 120 units observed. The germination percentage, germination speed index and germination dynamics were evaluated. The treatments T2 (boil in 100°C water for 20 seconds) and T4 (immersion in 30% hydrochloric acid for 32 minutes) were the ones with the best behavior, reaching a germination percentage of 97 and 96% respectively, reaching the maximum germination peaks starting eight days after the treatment was applied.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[tratamientos pregerminativos]]></kwd>
<kwd lng="es"><![CDATA[germinación]]></kwd>
<kwd lng="es"><![CDATA[semilla]]></kwd>
<kwd lng="es"><![CDATA[poder germinativo.]]></kwd>
<kwd lng="pt"><![CDATA[tratamentos pré-germinativos]]></kwd>
<kwd lng="pt"><![CDATA[germinação]]></kwd>
<kwd lng="pt"><![CDATA[semente]]></kwd>
<kwd lng="pt"><![CDATA[poder germinativo.]]></kwd>
<kwd lng="en"><![CDATA[pregerminative treatments]]></kwd>
<kwd lng="en"><![CDATA[germination]]></kwd>
<kwd lng="en"><![CDATA[seed]]></kwd>
<kwd lng="en"><![CDATA[germinative power.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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