<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342023000800008</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v14i8.3597</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Producción de forraje de cuatro cultivares de Urochloa híbrido en Güemes, Tamaulipas]]></article-title>
<article-title xml:lang="en"><![CDATA[Forage production of four cultivars of hybrid Urochloa in Güemez, Tamaulipas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Godina-Rodriguez]]></surname>
<given-names><![CDATA[Juan E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Joaquín-Cancino]]></surname>
<given-names><![CDATA[Santiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garay-Martínez]]></surname>
<given-names><![CDATA[Jonathan R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Drouaillet]]></surname>
<given-names><![CDATA[Benigno]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bautista-Martínez]]></surname>
<given-names><![CDATA[Yuridia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Limas-Martínez]]></surname>
<given-names><![CDATA[Andrés G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas Facultad de Ingeniería y Ciencias ]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Las Huastecas ]]></institution>
<addr-line><![CDATA[ Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas Facultad de Medicina y Veterinaria ]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>14</volume>
<numero>8</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342023000800008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342023000800008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342023000800008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente estudio fue evaluar el efecto de la edad de rebrote sobre la producción de forraje en cultivares de Urochloa (Cobra, Convert 330, Camello I y Camello II) en Güemes, Tamaulipas. El experimento se realizó en condiciones de temporal, de septiembre a noviembre de 2018. Las variables evaluadas fueron: altura de planta (AP; cm), rendimiento (kg ha-1) de materia seca de hoja (MSh), materia seca de tallo (MSt) y radiación interceptada (RI; %). El diseño estadístico fue completamente al azar, con tres repeticiones, se aplicó la prueba de comparación de medias de Tukey (p= 0.05). En general, la acumulación de materia seca incrementa en función de la edad de rebrote. Durante la octava semana de rebrote se obtuvieron los mayores rendimientos y fue mayor el rendimiento de hoja respecto al de tallo. Los mayores rendimientos de MSh se obtuvieron en la octava semana de rebrote (p&#8804; 0.05), independientemente del cultivar, con rendimientos de 1 625.3, 3 183.7, 3 032.7 y 4 227.7 kg ha-1 MS para Cobra, Convert 330, Camello I y Camello II, respectivamente. La octava semana es el momento óptimo para aprovechar el forraje de los híbridos en las condiciones climáticas que fueron evaluados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The present study aimed to assess the effect of regrowth age on forage production in Urochloa cultivars (Cobra, Convert 330, Camello I, and Camello II) in Güemes, Tamaulipas. The experiment was conducted under rainfed conditions from September to November 2018. The variables evaluated were: plant height (PH; cm), yield (kg ha-1) of dry matter of leaves (DMl), dry matter of stems (DMs), and intercepted radiation (IR; %). The statistical design was completely randomized, with three repetitions; Tukey&#8217;s mean comparison test (p= 0.05) was applied. In general, the accumulation of dry matter increases depending on the age of regrowth. During the eighth week of regrowth, the highest yields were obtained, and the leaf yield was higher than the stem yield. The highest yields of DMl were obtained at the eighth week of regrowth (p&#8804; 0.05), regardless of cultivar, with yields of 1 625.3, 3 183.7, 3 032.7, and 4 227.7 kg ha-1 DM for Cobra, Convert 330, Camello I and Camello II, respectively. The eighth week is the optimal time to use the forage of the hybrids under the climatic conditions in which they were assessed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[edad de rebrote]]></kwd>
<kwd lng="es"><![CDATA[híbridos de Urochloa]]></kwd>
<kwd lng="es"><![CDATA[producción de forraje]]></kwd>
<kwd lng="es"><![CDATA[radiación interceptada]]></kwd>
<kwd lng="en"><![CDATA[age of regrowth]]></kwd>
<kwd lng="en"><![CDATA[forage production]]></kwd>
<kwd lng="en"><![CDATA[intercepted radiation]]></kwd>
<kwd lng="en"><![CDATA[Urochloa hybrids]]></kwd>
</kwd-group>
</article-meta>
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