<?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>2305-0683</journal-id>
<journal-title><![CDATA[Investigaci髇 Agraria]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. Agrar.]]></abbrev-journal-title>
<issn>2305-0683</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, UNA.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2305-06832024000200054</article-id>
<article-id pub-id-type="doi">10.18004/investig.agrar.2024.diciembre.2602820</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Incidence of Substrate Type and Hormone Application on Oil Carob (Pongamia pinnata L. Pierre) Multiplication by Root Cuttings in Different Seasons]]></article-title>
<article-title xml:lang="es"><![CDATA[Incidencia del tipo de sustrato y aplicaci髇 de hormona en la multiplicaci髇 del algarrobo aceitero (Pongamia pinnata L. Pierre) por esquejes de ra韟 en diferentes 閜ocas del a駉]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cantero Garc韆]]></surname>
<given-names><![CDATA[Isaura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enciso G髆ez]]></surname>
<given-names><![CDATA[Manuel Marino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mar韆 Esther]]></surname>
<given-names><![CDATA[Riveros Pineda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ben韙ez Nez]]></surname>
<given-names><![CDATA[Juan Venancio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunci髇 Facultad de Ciencias Agrarias Carrera de Ingenier韆 Forestal]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Asunci髇 Centro Multidisciplinario de Investigaciones Tecnol骻icas ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>26</volume>
<numero>2</numero>
<fpage>54</fpage>
<lpage>58</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2305-06832024000200054&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2305-06832024000200054&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2305-06832024000200054&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Pongamia pinnata L. Pierre is a multipurpose oil tree species, a source of renewable biofuel, in addition to being a recuperator of degraded soils due to its capacity to fix nitrogen. The most common form of propagation is through seeds, but there is little information available on its vegetative propagation, with asexual propagation being essential to maintain the characteristics of the mother plant and avoid variability. The objective of this work was to evaluate the incidence of substrate type, rooting hormone application and time of year on the vegetative propagation capacity of P. pinnata by means of root cuttings. The experiment was carried out in the Forest Nursery of the Faculty of Agricultural Sciences, National University of Asunci髇. A completely randomized design with factorial arrangement (3󫎾) was used, composed of 3 types of substrates, 2 times of the year, with and without application of IBA hormone. The variables evaluated were: percentage of survival and rooting, number of rootlets, rootlet length and rooting index. The data were subjected to analysis of variance (ANOVA) and in cases where significant differences were found, means were compared using Tukey's test at 5% probability. The results indicate that Pongamia cuttings are not significantly influenced by the application of the IBA hormone and the type of substrate. However, they are significantly influenced by the time of year, with spring-summer being the best time for propagation by root cuttings, as demonstrated in this study.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Pongamia pinnata L. Pierre es una especie arb髍ea oleaginosa, de uso m鷏tiple, fuente de biocombustible renovable, adem醩 de ser recuperadora de suelos degradados por su capacidad para fijar nitr骻eno. La forma m醩 com鷑 de propagaci髇 es a trav閟 de semillas, pero existe poca informaci髇 disponible sobre su propagaci髇 vegetativa, siendo la propagaci髇 asexual esencial para mantener las caracter韘ticas de la planta madre y evitar la variabilidad. El objetivo de este trabajo fue evaluar la incidencia del tipo de sustrato, la aplicaci髇 de hormona de enraizamiento y la 閜oca del a駉 sobre la capacidad de multiplicaci髇 vegetativa de P. pinnata mediante esquejes de ra韟. El experimento se llev� a cabo en el Vivero Forestal de la Facultad de Ciencias Agrarias, Universidad Nacional de Asunci髇. Se utiliz� un dise駉 completamente al azar con delineamiento factorial (3󫎾), compuesto por 3 tipos de sustrato, 2 閜ocas del a駉, con y sin aplicaci髇 de hormona AIB. Las variables evaluadas fueron: porcentaje de enraizamiento y sobrevivencia, n鷐ero de raicillas, longitud de raicillas e 韓dice de enraizamiento. Los datos fueron sometidos a un an醠isis de varianza (ANAVA) y, en los casos en que se encontraron diferencias significativas, se realiz� una comparaci髇 de medias por el Test de Tukey al 5%. Los resultados indican que los esquejes de Pongamia no se ven influenciados significativamente por la aplicaci髇 de la hormona AIB y el tipo de sustrato, pero s� por la 閜oca, siendo primavera-verano la mejor 閜oca para la multiplicaci髇 por esquejes de ra韟 demostrada en este estudio.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[legume]]></kwd>
<kwd lng="en"><![CDATA[rooting]]></kwd>
<kwd lng="en"><![CDATA[vegetative propagation]]></kwd>
<kwd lng="en"><![CDATA[growth regulators]]></kwd>
<kwd lng="es"><![CDATA[leguminosa]]></kwd>
<kwd lng="es"><![CDATA[enraizamiento]]></kwd>
<kwd lng="es"><![CDATA[propagaci髇 vegetativa]]></kwd>
<kwd lng="es"><![CDATA[reguladores de crecimiento]]></kwd>
</kwd-group>
</article-meta>
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