<?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>S2310-34692022000100031</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Respuesta morfofisiológica de Ochroma pyramidale producida en viveros mediante tecnología biopot a la fertilización con N, P, K utilizando un diseño óptimo personalizado]]></article-title>
<article-title xml:lang="pt"><![CDATA[Resposta morfofisiológica da pirâmide Ochroma pyramidale cultivada em viveiros empregando a tecnologia de fertilização N, P, K com um projeto ideal feito sob medida]]></article-title>
<article-title xml:lang="en"><![CDATA[Morpho-physiological response of Ochroma pyramidale produced in nurseries by biopot technology to N, P, K fertilisation using an optimal custom design]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga-Crespo]]></surname>
<given-names><![CDATA[Yasiel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Quintana]]></surname>
<given-names><![CDATA[Yudel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bravo-Medina]]></surname>
<given-names><![CDATA[Carlos Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ureta-Leones]]></surname>
<given-names><![CDATA[Diego Armando]]></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[,Ministerio del Ambiente, Agua y Transición Ecológica (MAATE)  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>10</volume>
<numero>1</numero>
<fpage>31</fpage>
<lpage>43</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2310-34692022000100031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2310-34692022000100031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2310-34692022000100031&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Ochroma pyramidale es una especie de rápido crecimiento y alto valor comercial. Los mayores volúmenes de su madera se obtienen de plantaciones comerciales; sin embargo, existen muy pocos estudios sobre su producción en vivero. El objetivo de este estudio fue analizar el efecto de la concentración de N, P, K y la frecuencia de fertilización sobre la respuesta morfofisiológica de O. pyramidale cultivada en tubetes utilizando la metodología de superficie de respuesta. El experimento se estableció utilizando la metodología de superficie de respuesta para lo cual se utilizaron 30 plántulas por corrida experimental. El experimento consistió en aplicar diferentes concentraciones de N, P, K y dos frecuencias de fertilización según el diseño óptimo (personalizado). Las variables de respuesta fueron el aumento de altura, el aumento de diámetro y la asimilación de CO2. A partir de los resultados obtenidos, se confirmó el efecto positivo de la fertilización con N, P y K sobre las variables en estudio. A partir de los datos experimentales se encontró un modelo polinómico cuadrático de segundo orden que permite predecir la respuesta morfofisiológica de la especie. La frecuencia de fertilización durante el intervalo de tiempo estudiado no fue significativa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO A Ochroma pyramidale é uma espécie de crescimento rápido com alto valor comercial. Os maiores volumes de sua madeira são obtidos de plantações comerciais; no entanto, há muito poucos estudos sobre sua produção em berçário. O objetivo deste estudo foi analisar o efeito da concentração de N, P, K e frequência de fertilização na resposta morfofisiológica da pirâmide de O. pyramidale cultivada em biopots usando a metodologia de superfície de resposta. O experimento foi implementado utilizando a metodologia da superfície de resposta, para a qual foram utilizadas 30 mudas por série experimental. A experiência consistiu na aplicação de diferentes concentrações de N, P, K e duas frequências de fertilização de acordo com o projeto ideal (Personalizado). As variáveis de resposta foram aumento da altura, aumento do diâmetro e assimilação de CO2. A partir dos resultados obtidos, o efeito positivo da fertilização N, P e K sobre as variáveis em estudo foi confirmado. A partir dos dados experimentais, foi encontrado um modelo polinomial quadrático de segunda ordem para prever a resposta morfofisiológica da espécie. A frequência da fertilização durante o intervalo de tempo estudado não foi significativa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Ochroma pyramidale is a fast-growing species with high commercial value. The largest volumes of its wood are obtained from commercial plantations; however, there are very few studies of its production in nurseries. The objective of this study was analyse the effect of N, P, K concentration and fertilisation frequency on morpho-physiological response of O. pyramidale grown in biopots using response surface methodology. The experiment was set up using the response surface methodology for which 30 seedlings were used per experimental run. The experiment consisted of applying different concentrations of N, P, K and two fertilisation frequencies according to the optimal (Custom) design. The response variables were height increase, diameter increase and CO2 assimilation. From the results obtained, we confirmed the positive effect of N, P and K fertilisation on the variables under study. From the experimental data, a second-order quadratic polynomial model was found that allows the prediction of the morpho-physiological response of the species. The frequency of fertilisation during the time interval studied was not significant.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Fertilización]]></kwd>
<kwd lng="es"><![CDATA[Metodología de superficie de respuesta]]></kwd>
<kwd lng="es"><![CDATA[Ochroma pyramidale.]]></kwd>
<kwd lng="pt"><![CDATA[Fertilização]]></kwd>
<kwd lng="pt"><![CDATA[Metodologia de superfície de resposta]]></kwd>
<kwd lng="pt"><![CDATA[Ochroma pyramidale.]]></kwd>
<kwd lng="en"><![CDATA[Fertilisation]]></kwd>
<kwd lng="en"><![CDATA[Response surface methodology]]></kwd>
<kwd lng="en"><![CDATA[Ochroma pyramidale.]]></kwd>
</kwd-group>
</article-meta>
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