<?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>2007-1124</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. pecuarias]]></abbrev-journal-title>
<issn>2007-1124</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11242019000100239</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v10i1.4631</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rendimiento de forraje y sus componentes en variedades de alfalfa en el altiplano de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Yield of forage and its components in alfalfa varieties of the Mexican high plateau]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas García]]></surname>
<given-names><![CDATA[Adelaido Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres Salado]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado Peralta]]></surname>
<given-names><![CDATA[María de los Ángeles]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Pérez]]></surname>
<given-names><![CDATA[Jerónimo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Santillán]]></surname>
<given-names><![CDATA[Paulino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Hernández]]></surname>
<given-names><![CDATA[Aldenamar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mayren Mendoza]]></surname>
<given-names><![CDATA[Félix de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Garay]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ Guerrero]]></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[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>1</numero>
<fpage>239</fpage>
<lpage>253</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242019000100239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242019000100239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242019000100239&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La alfalfa (Medicago sativa L.) es la leguminosa cultivada más usada para la producción de leche y carne en México, debido a su alto rendimiento y calidad nutrimental. El objetivo de este estudio fue evaluar el rendimiento de forraje y sus componentes en cinco variedades de alfalfa con intervalos de corte definidos estacionalmente. Las variedades Aragón, Valenciana, Chipilo, Milenia y Oaxaca se distribuyeron aleatoriamente en 20 parcelas experimentales de 12 x 9 m, de acuerdo a un diseño de bloques completos al azar con cuatro repeticiones. Las evaluaciones incluyeron rendimiento de forraje en base seca, peso por tallo, población de tallos m-2, población de plantas m-2, relación hoja:tallo, composición botánica y morfológica. El rendimiento mayor y menor la obtuvieron las variedades Milenia y Aragón con 20,643 y 14,488 kg MS ha-1. El peso por tallo fue mejor en Aragón, Chipilo y Milenia y menor en Valenciana y Oaxaca. Aragón obtuvo la mayor densidad de tallos con 634 tallos m-2 y Oaxaca con 512 tallos m-2 el menor. La relación hoja:tallo mayor la presentó Aragón con 1.31 y la menor Oaxaca con 1.13. En otoño e invierno se obtuvo mayor cantidad de hoja, independientemente de la variedad; y en verano, hubo incremento de maleza en todas las variedades. Existió estacionalidad en el rendimiento; primavera y verano son las épocas con producción mayor, debido a la temperatura y el peso por tallo mayor. La variedad con mayor rendimiento de materia seca fue Milenia y la menor Aragón.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Alfalfa (Medicago sativa L.) is the cultivated legume that is mostly used in milk and meat production in Mexico, due to its high yield and nutritional value. The objective of this study was to evaluate the yield of forage and its components, in five alfalfa varieties, with seasonally defined cutting intervals. The Aragon, Valenciana, Chipilo, Milenia and Oaxaca varieties were randomly distributed in 20 experimental, 12 x 9 m plots, according to a randomized complete block design with four repeats. The evaluations included forage yield in a dry base, stem weight, stem population m-2, plant population m-2, leaf:stem ratio, botanical and morphological composition. The highest and lowest yields were obtained in the Milenia and Aragon varieties, with 20,643 and 14,488 kg DM ha-1. The weight per stem was better in Aragon, Chipilo and Milenia, and lower in Valenciana and Oaxaca. Aragon had the greatest stem density, with 634 stems m-2, and Oaxaca, with 512 stems m-2, had the lowest density. The highest leaf:stem ratio was found in Aragon, with 1.31, and the lowest was found in Oaxaca, with 1.13. In fall and winter, a larger amount of leaves was obtained, independently of the variety, and in summer, there was an increase in all weed varieties. Seasonality was related to yield, with a greater production in spring and summer, due to temperature, and to a greater stem weight. The variety with greatest dry matter yield was Milenia, and Aragon had the lowest yield.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Rendimiento de forraje]]></kwd>
<kwd lng="es"><![CDATA[Relación hoja:tallo]]></kwd>
<kwd lng="es"><![CDATA[Población de tallos]]></kwd>
<kwd lng="en"><![CDATA[Forage yield]]></kwd>
<kwd lng="en"><![CDATA[leaf:stem ratio]]></kwd>
<kwd lng="en"><![CDATA[stem population]]></kwd>
</kwd-group>
</article-meta>
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