<?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>S2007-11242016000400539</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Acumulación estacional de biomasa aérea de alfalfa Var. Oaxaca criolla (Medicago sativa L.)]]></article-title>
<article-title xml:lang="en"><![CDATA[Seasonal aerial biomass accumulation of native lucerne (Medicago sativa L.)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montes Cruz]]></surname>
<given-names><![CDATA[Fausto Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro Rivera]]></surname>
<given-names><![CDATA[Rigoberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar Benítez]]></surname>
<given-names><![CDATA[Gisela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval Torres]]></surname>
<given-names><![CDATA[Sadoth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solís Oba]]></surname>
<given-names><![CDATA[María Myrna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional CIIDIR Unidad Oaxaca]]></institution>
<addr-line><![CDATA[ Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luís Potosí Instituto de Investigación de Zonas Desérticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Politécnico Nacional CIBA ]]></institution>
<addr-line><![CDATA[ Tlaxcala]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>4</numero>
<fpage>539</fpage>
<lpage>552</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242016000400539&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242016000400539&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242016000400539&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El conocimiento de las dinámicas de acumulación de biomasa de una especie forrajera en las diferentes épocas del año, es una metodología útil para una mejor planeación y aprovechamiento del cultivo para obtener los mayores rendimientos y material vegetal de buena calidad nutritiva. El objetivo del presente estudio fue determinar curvas de acumulación de forraje, tasa de crecimiento, altura de forraje, relación hoja:tallo y composición botánica, en una pradera de alfalfa de tres años de establecida. Se utilizó un diseño experimental de bloques completos al azar con siete tratamientos y cuatro repeticiones. El mayor rendimiento de materia seca se registró (P&lt;0.01) a los 49 días de rebrote en primavera, verano y otoño (2,794, 2,680 y 2,116 Kg MS ha-1, respectivamente), y a los 42 días en invierno (3,416 kg MS ha-1). Las mayores tasas de crecimiento (61 kg MS ha-1d-1) y la menor relación hoja:tallo se registraron en el invierno. La mayor presencia de otros pastos y malezas fue en primavera y verano. Se concluye realizar cortes cada 35 a 40 días en invierno y otoño, mientras que en primavera y verano cada 30 a 35 días, y no cada 40 días independientemente de la estación del año, como se hace comúnmente en la región.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: To know the dynamics herbage yield at different times of the year, is a useful methodology for improving pasture management and optimize the performance and quality plant. The aim of the study was to determine the herbage accumulation curves, average growth rate, forage height, leaf:stem ratio, and botanical composition in a lucerne pastureland of 3 yr of established. The experimental design was a randomized complete block design with four replicates. The highest dry matter yield was recorded (P&lt;0.01) at 49 regrowth days in spring, summer and autumn (2,794, 2,680 and 2,116 kg DM ha-1, respectively), and 42 d in winter (3,416 Kg DM ha-1). The highest growth rates (61 kg DM ha-1 d-1) and the lower leaf:stem ratio was recorded in the winter. The increased presence of other grasses and weeds was in spring and summer. It concludes to make defoliations every 35 to 40 d in winter and autumn, whereas in spring and summer every 30 to 35 d, not every 40 d regardless of the season, as it is commonly done in the region.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dinámicas de crecimiento]]></kwd>
<kwd lng="es"><![CDATA[Rendimiento de forraje]]></kwd>
<kwd lng="es"><![CDATA[Alfalfa criolla]]></kwd>
<kwd lng="en"><![CDATA[Growth dynamics]]></kwd>
<kwd lng="en"><![CDATA[Yield]]></kwd>
<kwd lng="en"><![CDATA[Native lucerne]]></kwd>
</kwd-group>
</article-meta>
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