<?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>2301-1548</journal-id>
<journal-title><![CDATA[Agrociencia (Uruguay)]]></journal-title>
<abbrev-journal-title><![CDATA[Agrociencia Uruguay]]></abbrev-journal-title>
<issn>2301-1548</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Agronomía - Instituto Nacional de Investigación Agropecuaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2301-15482017000200077</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Respuesta del maíz y la soja a diferentes disponibilidades hídricas en distintas etapas de desarrollo]]></article-title>
<article-title xml:lang="en"><![CDATA[Corn and Soybeans Response to Different Water Availability at Various Stages of Crop Development]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giménez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la República Facultad de Agronomía Departamento de Producción Vegetal]]></institution>
<addr-line><![CDATA[ Paysandú]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>77</fpage>
<lpage>90</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S2301-15482017000200077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S2301-15482017000200077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S2301-15482017000200077&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los cultivos de maíz y soja difieren tanto en sus procesos fisiológicos como en sus requerimientos ambientales. No obstante,en ambos cultivos la disponibilidad hídrica durante el ciclo de desarrollo es la principal limitante ambiental que determina losrendimientos y la variabilidad de los mismos en cultivos realizados en secano. El trabajo se llevó adelante en el campoexperimental de riego de la Estación Experimental «Dr. Mario A. Cassinoni» de la Facultad de Agronomía, ubicada enPaysandú, Uruguay, durante las temporadas 2011 y 2012. El objetivo principal fue cuantificar el impacto de las deficienciashídricas en distintas etapas de desarrollo sobre el rendimiento de maíz y soja. Para ello se provocaron deficiencias hídricasy bienestar hídrico en diferentes etapas del ciclo de los cultivos, a través de la intercepción de las precipitaciones (PP) y de laaplicación de riego suplementario, de manera de controlar el agua disponible (AD). Los resultados mostraron que lasmayores disminuciones del rendimiento ocurrieron con deficiencias de agua acumuladas en la etapa vegetativa y el períodocrítico (PC) y variaron entre 40 % en maíz y 30 % en soja, con respecto a los testigos regados que presentaron rendimientosde 14,6 t ha-1 y 6,2 t ha-1, respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Corn and soybean crops differ in both their physiological processes and their environmental requirements. However, wateravailability during the development cycle is the main environmental factor that determines yields and their variability in rainfedcrops. The work was carried out in the irrigation field of the «Dr. Mario A. Cassinoni» Experimental Station of the School ofAgronomy located in Paysandú, Uruguay, during 2011 and 2012 seasons. The main objective was to quantify the impact ofwater deficiencies on corn and soybean yields at different stages of development. In order to do this, water deficiencies andwater-comfort conditions were induced at different stages of the crops through interception of precipitation (PP) and supplementaryirrigation so as to control the available water (AW). Results showed that the largest decreases in yields occurred whenwater deficiencies accumulated in the vegetative stages and in the critical period (CP) varying from 40 % in corn and 30 % insoybeans, in comparison to the control treatments which presented yields of 14,6 t ha-1 and 6,2 t ha-1, respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[deficiencias hídricas]]></kwd>
<kwd lng="es"><![CDATA[etapas de desarrollo]]></kwd>
<kwd lng="es"><![CDATA[cultivos de verano]]></kwd>
<kwd lng="es"><![CDATA[agua]]></kwd>
<kwd lng="en"><![CDATA[water deficiencies]]></kwd>
<kwd lng="en"><![CDATA[crops development stages]]></kwd>
<kwd lng="en"><![CDATA[summer crops]]></kwd>
<kwd lng="en"><![CDATA[water]]></kwd>
</kwd-group>
</article-meta>
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