<?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>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802016000300253</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Respuesta de canola para forraje a la densidad de población]]></article-title>
<article-title xml:lang="en"><![CDATA[Response of canola forage to plant density]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reta-Sánchez]]></surname>
<given-names><![CDATA[David G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrato-Corona]]></surname>
<given-names><![CDATA[J. Santos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quiroga-Garza]]></surname>
<given-names><![CDATA[Héctor M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Viramontes]]></surname>
<given-names><![CDATA[Uriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gaytán-Mascorro]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cueto-Wong]]></surname>
<given-names><![CDATA[J. Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Cd. Matamoros Coahuila]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Agricultura y Zootecnia ]]></institution>
<addr-line><![CDATA[Gómez Palacio Durango]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<volume>39</volume>
<numero>3</numero>
<fpage>253</fpage>
<lpage>258</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802016000300253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802016000300253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802016000300253&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El aumento en la densidad de población en canola (Brassica napus L. var. oleifera) para forraje puede incrementar los rendimientos de materia seca (MS) y nutrientes. Se realizaron dos experimentos para evaluar el efecto de la densidad de población sobre la composición química del forraje y los rendimientos de MS, proteína cruda (PC) y energía neta para lactancia (ENL) en canola. Los experimentos se hicieron en Matamoros, Coahuila, México durante los ciclos 2011-2012 y 2012-2013. Las densidades de población a la cosecha fluctuaron entre 19.1 y 248 plantas m-2. La asociación entre la densidad de población y las variables de respuesta se analizó mediante regresión lineal simple (P &#8804; 0.05). El aumento en la densidad de plantas incrementó la concentración de PC y ENL en el primer ciclo, mientras que en el segundo la composición química no fue afectada. En las bajas densidades, la plasticidad de la canola no compensó el rendimiento de MS, PC y ENL por hectárea, ya que estas variables mostraron una relación lineal positiva (P &#8804; 0.05) con la densidad de población. El rendimiento de MS fluctuó de 6,067 a 9,356 kg ha-1. Los rendimientos de PC y ENL se ajustaron a una función lineal (P &#8804; 0.05). En el segundo año, los rendimientos de PC (1,398 a 2,260 kg ha-1) y ENL (29,248 a 54,487 MJ ha-1) fueron mayores que los del primero, con 842 a 2,159 kg ha-1 en PC y 17,533 a 44,617 MJ ha-1 en ENL. Los resultados indican que los rendimientos de MS y nutrientes en canola para forraje se incrementaron al aumentar la densidad de población, sin afectar la composición química del forraje.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Increasing plant density in canola forage (Brassica napus L. var. oleifera) may improve dry matter (DM) and nutrient yields. Two experiments were conducted to evaluate the effect of plant density on forage chemical composition and yields of DM, crude protein (CP) and net energy for lactation (NEL) in canola. The trials were carried out during the 2011-2012 and 2012-2013 cycles in Matamoros, Coahuila, Mexico. Plant densities at harvest varied from 19.1 to 248 plants m-2. The association between plant density and the response variables were analyzed using simple linear regression (P &#8804; 0.05). The increase in plant density enhanced the concentration of CP and NEL in the first cycle, whereas in the second cycle chemical composition was not affected. At low plant densities, the plasticity of canola did not compensate DM, CP and NEL yields, as these variables showed a positive linear relationship (P &#8804; 0.05) with plant density. Dry matter yield ranged from 6067 to 9356 kg ha1. Yields of CP and NEL were fitted to a linear function (P &#8804; 0.05). Yields of CP (1398 to 2260 kg ha-1) and NEL (29,248 to 54,487 MJ ha-1) in the second year were higher than those observed in the first year, with 842 to 2159 kg ha-1 of CP and 17,533 to 44,617 MJ ha-1 of NEL. Results indicate that DM and nutrient yields in canola forage increased as plant density increased, without affecting forage chemical composition.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Brassica napus var. oleifera]]></kwd>
<kwd lng="es"><![CDATA[composición química]]></kwd>
<kwd lng="es"><![CDATA[rendimiento de materia seca]]></kwd>
<kwd lng="es"><![CDATA[nutrientes]]></kwd>
<kwd lng="en"><![CDATA[Brassica napus var. oleifera]]></kwd>
<kwd lng="en"><![CDATA[chemical composition]]></kwd>
<kwd lng="en"><![CDATA[dry matter and nutrients yield]]></kwd>
</kwd-group>
</article-meta>
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<year>1994</year>
<volume>86</volume>
<page-range>227-32</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
