<?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>S2007-09342020000900201</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v0i24.2370</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rendimiento y calidad de semilla de pasto guinea cv. Mombaza a diferentes fechas de precorte]]></article-title>
<article-title xml:lang="en"><![CDATA[Yield and quality of guinea grass seed cv. Mombaza at different pre-cut dates]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Joaquín Torres]]></surname>
<given-names><![CDATA[Bertín Maurilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Vázquez]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos Juárez]]></surname>
<given-names><![CDATA[Jesús Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aranda Ibañez]]></surname>
<given-names><![CDATA[Emilio Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Amaro]]></surname>
<given-names><![CDATA[José Alberto]]></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-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Posgraduados Campus Tabasco ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Villahermosa Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Centro de Chiapas ]]></institution>
<addr-line><![CDATA[ Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas Facultad de Ingeniería y Ciencias ]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>05</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>05</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>spe24</numero>
<fpage>201</fpage>
<lpage>210</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342020000900201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342020000900201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342020000900201&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del estudio fue evaluar el efecto del precorte en el rendimiento y calidad de semilla de pasto guinea (Megathyrsus maximus) cv. Mombaza. El estudio se realizó en el campo experimental de la Universidad del Papaloapan Campus Loma Bonita, Oaxaca. Se evaluaron ocho tratamientos, los cuales consistieron en precortes a cada 10 días a partir del corte de uniformidad, el cual se realizó el 1 de julio. Se utilizó un diseño de bloques completos al azar, con tres repeticiones por tratamiento. Se evaluó el rendimiento de semilla total, semilla pura, semilla pura germinable, porcentaje de germinación de la semilla cosechada, número de panículas totales por m2, número de panículas maduras por m2, longitud de panícula, número de semillas cosechadas por panícula, peso de semillas por panícula, porcentaje de pureza y peso de mil semillas. Se detectaron diferencias (p&lt; 0.05) entre tratamientos para rendimiento de semilla pura y semilla pura germinable, donde los mayores valores (205.2 y 103.1 kg ha-1, respectivamente) se obtuvieron con la fecha de precorte del 20 de julio, también hubo diferencia significativa para el número de semillas cosechadas por panícula y peso de semillas por panícula. Se concluye que el 20 de julio es la mejor fecha de precorte para incrementar el rendimiento de semilla de Megathyrsus maximus cv. Mombaza.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of the present study was to evaluate the effect of the precut in the yield and quality of guinea grass seed (Megathyrsus maximus) cv. Mombasa. The study was carried out in the experimental field of the University of the Papaloapan Campus Loma Bonita, Oaxaca. Eight treatments were evaluated, which consisted in precuts every 10 days from the court of uniformity, which took place on July 1. The treatments were tested under a design of a randomized complete block with three replications per treatment. We evaluated the total seed yield, pure seed yield, yield of pure germinable seed, germination percentage of harvested seed, plant height, total number of panicles per m2, ripe panicle number per m2, panicle length, number of seeds harvested by panicle, seed weight per panicle, percentage of purity and weight of a thousand seeds. There were significant differences (p&lt; 0.05) between treatments for pure seed yield and yield of pure germinable seed, where the highest values (205.2 and 103.1 kg ha-1, respectively) were obtained with the precut the date July 20, there were also significant difference to the number of seeds harvested by panicle and weight of seeds per panicle. It is therefore concluded that the July 20 is the best date for precut to increase seed yield of Megathyrsus maximus cv. Mombaza.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Megathyrsus maximus]]></kwd>
<kwd lng="es"><![CDATA[componentes del rendimiento]]></kwd>
<kwd lng="es"><![CDATA[producción de semilla]]></kwd>
<kwd lng="en"><![CDATA[Megathyrsus maximus]]></kwd>
<kwd lng="en"><![CDATA[yield components]]></kwd>
<kwd lng="en"><![CDATA[seed production]]></kwd>
</kwd-group>
</article-meta>
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