<?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>S2007-09342020000701579</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v11i7.2344</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de agroecosistemas de maíz en la planicie costera del Istmo, Oaxaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of maize agroecosystems in the coastal plain of the Istmo, Oaxaca]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda-Hidalgo]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rasgado-Cabrera]]></surname>
<given-names><![CDATA[Víctor Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santiago-Martínez]]></surname>
<given-names><![CDATA[Gisela Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozano-Trejo]]></surname>
<given-names><![CDATA[Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-León]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villegas-Aparicio]]></surname>
<given-names><![CDATA[Yuri]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico del Valle de Oaxaca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico del Valle de Oaxaca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>7</numero>
<fpage>1579</fpage>
<lpage>1592</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342020000701579&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342020000701579&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342020000701579&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los agroecosistemas son ecosistemas transformados por el humano al usar los recursos para producir alimentos, fibras y materias primas. El estudio se realizó en 2017 con el objetivo de identificar y caracterizar los agroecosistemas de maíz en la planicie costera del Istmo Oaxaca y conocer su estado actual. Se utilizaron las metodologías del sondeo rural participativo y la de estudio de agroecosistemas. Se aplicó un cuestionario a una muestra de 60 productores de maíz. La información se sistematizó en Microsoft Excel 2010 y procesó en SAS® V9.0 para el análisis de componentes principales (ACP) y discriminación canónica. De 103 variables, se seleccionaron 10 por ACP y 12 incorporadas a juicio de valor, en las dimensiones biofísica, social, económica y tecnológica. Se identificaron tres agroecosistemas (distancia cuadrada de Mahalanobis y pruebas multivariables con aproximación de F) (p&lt; 0.01): 1) agroecosistema de maíz Juchitán de Zaragoza-Chicapa de Castro (AE1); 2) agroecosistema de maíz Álvaro Obregón-Emiliano Zapata (AE2); y 3) agroecosistema de maíz La Venta-La Ventosa (AE3). En los tres AE siembran maíz Zapalote Chico de forma tradicional y baja mecanización (preparación de suelos y siembra). Aunque los rendimientos son muy similares en los tres AE, en ingreso mensual sobresalen los AE1 y AE3, en contraste con el AE2, donde es menor, debido a su actividad ganadera (cabras en pastoreo intensivo) distinta a los otros AE (ganado de doble propósito), baja superficie de cultivo, pocos jornales contratados, etc. El maíz es para autoconsumo, aunque se venden excedentes en el mercado local.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Agroecosystems are ecosystems transformed by humans by using resources to produce food, fiber, and raw materials. The study was carried out in 2017 with the objective of identifying and characterizing the corn agroecosystems in the coastal plain of the Istmo of Oaxaca and knowing their current status. The methodologies of the participatory rural survey and the study of agroecosystems were used. A questionnaire was applied to a sample of 60 corn producers. The information was systematized in Microsoft Excel 2010 and processed in SAS® V9.0 for principal component analysis (PCA) and canonical discrimination. Of 103 variables, 10 were selected by ACP and 12 incorporated into value judgment, in the biophysical, social, economic and technological dimensions. Three agroecosystems were identified (Mahalanobis square distance and multivariate tests with approximation of F) (p&lt; 0.01): 1. Juchitán de Zaragoza-Chicapa de Castro maize agroecosystem (AE1); 2. Álvaro Obregón-Emiliano Zapata (AE2) corn agroecosystem; and 3. La Venta-La Ventosa corn agroecosystem (AE3). In the three AE they sow Zapalote Chico corn in a traditional way and with low mechanization (soil preparation and sowing). Although the yields are very similar in the three AE, in monthly income AE1 and AE3 stand out, in contrast to AE2, where it is lower, due to their livestock activity (goats in intensive grazing) different from the other AE (dual-purpose cattle), low cultivation area, few hired wages, etc. The corn is for self-consumption, although surpluses are sold in the local market.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Zea mays L.]]></kwd>
<kwd lng="es"><![CDATA[agricultura tradicional]]></kwd>
<kwd lng="es"><![CDATA[Istmo de Tehuantepec]]></kwd>
<kwd lng="es"><![CDATA[rendimiento anual]]></kwd>
<kwd lng="en"><![CDATA[Zea mays L.]]></kwd>
<kwd lng="en"><![CDATA[annual yield]]></kwd>
<kwd lng="en"><![CDATA[Istmo of Tehuantepec]]></kwd>
<kwd lng="en"><![CDATA[traditional agriculture]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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