<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792016000400393</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desarrollo radical y rendimiento en diferentes variedades de trigo, cebada y triticale bajo condiciones limitantes de humedad del suelo]]></article-title>
<article-title xml:lang="en"><![CDATA[Root development and yield in different genotypes of bread wheat, barley and triticale under limiting soil moisture conditions]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda Domínguez]]></surname>
<given-names><![CDATA[Luis Eduardo]]></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[Benítez Riquelme]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía Contreras]]></surname>
<given-names><![CDATA[José Apolinar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[ Edo. de México]]></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>34</volume>
<numero>4</numero>
<fpage>393</fpage>
<lpage>407</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792016000400393&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792016000400393&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792016000400393&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El trigo (Triticum aestivum L.), triticale (Triticosecale Wittmack) y cebada (Hordeum vulgareL.), se cultivan en México bajo riego y temporal o secano. En condiciones de secano se cultivan en la temporada de lluvias en verano-otoño y otoño-invierno con humedad residual, después de la temporada de lluvias, aunque con severos problemas de sequía terminal. El presente trabajo tuvo como objetivo estudiar el rendimiento de grano (RG) y sus componentes, y la densidad radical (DR) bajo condiciones de humedad residual en Oaxaca, México, durante el periodo otoño-invierno 2013-2014. Se utilizó un diseño experimental de bloques completos al azar con cuatro repeticiones; la unidad experimental fue de cuatro surcos de 4 × 0.4 m. Se sembró el 5 de octubre de 2013 con una densidad de siembra de 100 kg ha-1 y se fertilizó con la dosis 40-40-00. La cebada produjo mayor RG que el trigo y el triticale; el alto RG estuvo acompañado de un alto índice de cosecha (IC), peso del grano (PG) y DR, y menor estatura de planta y ciclo biológico (CB) más corto. El trigo y el triticale tuvieron un RG similar, sin embargo, el trigo &#8216;Venturero&#8217; tuvo mayor RG que la mayoría de los genotipos de trigo y triticale con alto número de espigas m-2 (E M-2) y PG, y el más alto peso hectolitrico, la mayor DR y el CB más largo. Más del 50% de las raíces se concentraron cerca de la superficie del suelo (20 cm) en todos los genotipos y se observó que el trigo tuvo mayor DR que la cebada y el triticale en los estratos de 20-100 cm, y el trigo &#8216;Venturero&#8217; produjo más raíces que los demás genotipos desde la superficie del suelo hasta los 100 cm. Los genotipos de cebada y trigo con mayor DR produjeron mayor RG, confirmando su mayor resistencia a sequía.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Bread wheat (Triticum aestivum L.), triticale (Triticosecale Wittmack) and barley (Hordeum vulgare L.) crops are grown under both irrigation and rainfed conditions in Mexico. Although they are cultivated in rainfed conditions in the summer-fall and in autumn-winter with residual moisture after the rainy season, they experience severe terminal drought. This research was conducted to study the grain yield (GY) and its components and root length density (RLD) under residual soil moisture conditions in Oaxaca, Mexico, during the fall-winter 2013-2014 growing season. A complete block design with four replicates was used. Plots consisted of four 4 × 0.4 m rows. A seeding rate of 100 kg ha&#8209;1 and a fertilizer rate of 40-40-00 were used. The experiment was sown on October 5, 2013. Barley had higher GY than bread wheat and triticale; the higher GY was accompanied by high harvest index (HI), grain weight (GW) and RLD, and also lower plant stature and shorter biological cycle (BC). Bread wheat and triticale had similar GY, but the landrace of bread wheat, &#8216;Venturero&#8217; produced greater GY than most of the bread wheat genotypes and triticale, with a high number of spikes m-2 (S M-2), GW, the highest grain density and RLD, and the longest BC. More than 50% of root length density accumulated near the soil surface (20 cm) in all genotypes. Bread wheat had higher RLD than barley and triticale in the 20-100 cm strata, and the bread wheat landrace &#8216;Venturero&#8217; produced more roots than any of the other genotypes from the soil surface down to 100 cm. Genotypes of barley and bread wheat with higher RLD produced greater GY, confirming that they are more drought resistance.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[biomasa final aérea]]></kwd>
<kwd lng="es"><![CDATA[ciclo biológico]]></kwd>
<kwd lng="es"><![CDATA[índice de cosecha]]></kwd>
<kwd lng="es"><![CDATA[peso hectolitrico]]></kwd>
<kwd lng="es"><![CDATA[tamaño del grano]]></kwd>
<kwd lng="en"><![CDATA[final aerial biomass]]></kwd>
<kwd lng="en"><![CDATA[biological cycle]]></kwd>
<kwd lng="en"><![CDATA[grain density]]></kwd>
<kwd lng="en"><![CDATA[grain size]]></kwd>
<kwd lng="en"><![CDATA[harvest index]]></kwd>
</kwd-group>
</article-meta>
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