<?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>S2007-09342016000701651</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relaciones hídricas en maíces de Valles Altos de la Mesa Central de México en condiciones de sequía y fertilización nitrogenada]]></article-title>
<article-title xml:lang="en"><![CDATA[Water relations in corn's High Valleys of Central Bureau of Mexico in drought conditions and nitrogen fertilization]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villalobos-González]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Castañeda]]></surname>
<given-names><![CDATA[Cándido]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Colín]]></surname>
<given-names><![CDATA[Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-Rincón]]></surname>
<given-names><![CDATA[Víctor Heber]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Hernández]]></surname>
<given-names><![CDATA[Mónica Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIFAP Campo Experimental Edzná ]]></institution>
<addr-line><![CDATA[Campeche Campeche]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Genética ]]></institution>
<addr-line><![CDATA[Montecillo, Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>7</numero>
<fpage>1651</fpage>
<lpage>1665</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000701651&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000701651&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000701651&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo fue estudiar la respuesta de un grupo de maíces híbridos y criollos en las relaciones hídricas de la planta, el desarrollo del área foliar, la floración, el rendimiento de grano y sus componentes, en condiciones de riego, sequía y deficiencias de nitrógeno en un invernadero del Colegio de Postgraduados, Campus Montecillo en 2013. Los tratamientos fueron: S1 sin riego 10 d (30-40 dds); S2 sin riego 20 d (50-70 dds); S3 sin riego 30 d (70-100 dds), con alto (AN, 160-40-20) y bajo N (BN, 80-40-20) aplicado en la siembra. La disminución del contenido hídrico edáfico (CHE) se reflejó en una reducción significativa (p&#8804; 0.05) de los potenciales hídrico foliar (&#968;), osmótico (&#960;) y de turgencia (P), y contenido relativo de agua (CRA) en S1, S2 y S3 con respecto a riego con AN y BN, al finalizar los tratamientos de sequía; los híbridos presentaron mayor &#968; , &#960;, P y CRA que los criollos. En todos los materiales evaluados el estrés hídrico redujo la expansión del área foliar (EAF), se retrasó la antesis y floración femenina (IA-FF), disminuyó el rendimiento de grano (RG), número de granos mazorca-1 (NGNM) y peso de 100 granos (P100G). En S1 y S2 los híbridos presentaron mayor EAF y produjeron mayor RG, NGNM, y presentaron un IA-FF más corto que los criollos con AN y BN. En R y S1 con BN, y S2 con AN y BN los híbridos presentaron mayor P100G. En S3 no se produjo grano.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective was to study the response of a group of hybrid and creoles corns in the water relations of the plant, the leaf area development, flowering, grain yield and its components under irrigation, drought and nitrogen deficiencies in a greenhouse of the Graduate College, Campus Montecillo in 2013. The treatments were: S1 unirrigated 10 d (30-40 dds); S2 unirrigated 20 d (50-70 dds); S3 unirrigated 30 d (70-100 dds), with high (AN, 160-40-20) and low N (BN, 80-40-20) applied at planting. The decrease of the soil water content (CHE) was reflected in a significant reduction (p &#8804; 0.05) of the leaf water potential (&#968;), osmotic (&#960;) and turgidity (P) and relative water content (CRA) in S1, S2 and S3 with respect to irrigation AN and BN at the end drought treatments; hybrids showed higher &#968;, &#960;, P and CRA that the creoles. In all materials tested water stress reduced the expansion of leaf area (EAF), anthesis and silking was delayed (IA-FF), it decreased grain yield (RG), number of grains cob-1 (NGNM) and weight of 100 grains (P100G). In S1 and S2 hybrids showed higher EAF and produced more RG, NGNM, and had a shorter IA-FF than the creoles with AN and BN. In R and S1, with BN and S2 with AN and BN hybrids they showed higher P100G. In the S3 did not occur in grain.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[criollos]]></kwd>
<kwd lng="es"><![CDATA[híbridos]]></kwd>
<kwd lng="es"><![CDATA[estrés hídrico]]></kwd>
<kwd lng="es"><![CDATA[maíz]]></kwd>
<kwd lng="es"><![CDATA[rendimiento]]></kwd>
<kwd lng="en"><![CDATA[corn]]></kwd>
<kwd lng="en"><![CDATA[creoles]]></kwd>
<kwd lng="en"><![CDATA[hybrid]]></kwd>
<kwd lng="en"><![CDATA[water stress]]></kwd>
<kwd lng="en"><![CDATA[yield]]></kwd>
</kwd-group>
</article-meta>
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