<?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>S2007-09342019000801771</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v10i8.1765</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio preliminar para determinar diferencias fenotípicas y tamaño de muestra en maíz Cacahuacintle]]></article-title>
<article-title xml:lang="en"><![CDATA[Preliminary study to determine phenotypic differences and sample size in Cacahuacintle corn]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jasso Bobadilla]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez López]]></surname>
<given-names><![CDATA[Delfina de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Huerta]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sangerman-Jarquín]]></surname>
<given-names><![CDATA[Dora María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navarro Bravo]]></surname>
<given-names><![CDATA[Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Centro de Investigación y Estudios Avanzados en Fitomejoramiento Facultad de Ciencias Agrícolas]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>8</numero>
<fpage>1771</fpage>
<lpage>1782</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342019000801771&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342019000801771&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342019000801771&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este estudio se hizo en primavera-verano del 2016 en seis comunidades del municipio de Calimaya de Díaz González, Estado de México para muestrear terrenos de agricultores cooperantes y estimar diferencias fenotípicas en las dimensiones de planta y elote en la raza Cacahuacintle. En 30 parcelas, de una hectárea cada una, distribuidas en la Cabecera Municipal, San Lorenzo Cuauhtenco, Santa María Nativitas, San Marcos de la Cruz, San Diego La Huerta y Zaragoza de Guadalupe, fueron consideradas al azar 50 plantas y elotes por productor (casi 21 000 datos). Se calcularon estadísticos simples y valores de n con dos metodologías. Con un análisis de componentes principales se analizó la relación entre productores, comunidades y variables. Los resultados más sobresalientes mostraron que hay diferencias fenotípicas importantes en todas las características. Los valores de n permitirían muestrear parcelas donde se siembra Cacahuacintle en ese municipio, con el método 1 sólo debe conocerse el tamaño de la población y elegir un valor asignado al error de muestreo. Con la aplicación del método 2 o de otras técnicas complementarias, podrían muestrearse menos plantas que con el método 1 pero deben conocerse la media aritmética, la desviación estándar, el error estándar, el coeficiente de variación o proporciones entre dos de éstos. En los cuatro cuadrantes del biplot se agruparon al menos tres de los cinco agricultores cooperantes de cada localidad. Hubo correlación positiva y significativa entre el número de hojas para envolver tamales (NHT) con el número de granos e hileras de grano en el elote, esta tendencia también se observó entre la primera y la longitud y el diámetro del raquis. Así, NHT podría emplearse como criterio de selección indirecta para incrementar las dimensiones del elote.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This study was carried out in spring-summer of 2016 in six communities of the municipality of Calimaya de Díaz González, State of Mexico to sample land of cooperating farmers and estimate phenotypic differences in plant and corn dimensions in the Cacahuacintle breed. In 30 plots, of one hectare each, distributed in the Municipal District, San Lorenzo Cuauhtenco, Santa María Nativitas, San Marcos de la Cruz, San Diego La Huerta and Zaragoza de Guadalupe, 50 plants and corn per producer were considered at random (almost 21 000 data). Simple statistics and values of n were calculated with two methodologies. With a principal component analysis, the relationship between producers, communities and variables was analyzed. The most outstanding results showed that there are important phenotypic differences in all characteristics. The values of n would allow sampling plots where Cacahuacintle is planted in that municipality, with method 1, only the population size should be known and a value assigned to the sampling error should be chosen. With the application of method 2 or other complementary techniques, fewer plants could be sampled than with method 1 but the arithmetic mean, standard deviation, standard error, coefficient of variation or proportions between two of these should be known. In the four quadrants of the biplot, at least three of the five cooperating farmers in each locality were grouped. There was a positive and significant correlation between the number of quality leaves for wrapping tamales (NHT) with the number of grains and rows of grain in the corn, this trend was also observed between the first and the length and diameter of the spine. Thus, NHT could be used as an indirect selection criterion to increase the size of the corn.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[muestreo aleatorio]]></kwd>
<kwd lng="es"><![CDATA[parcelas de agricultores cooperantes]]></kwd>
<kwd lng="es"><![CDATA[raza Cacahuacintle]]></kwd>
<kwd lng="es"><![CDATA[Valles Altos del centro de México]]></kwd>
<kwd lng="en"><![CDATA[Cacahuacintle race]]></kwd>
<kwd lng="en"><![CDATA[High Valleys of central Mexico]]></kwd>
<kwd lng="en"><![CDATA[plots of cooperating farmers]]></kwd>
<kwd lng="en"><![CDATA[random sampling]]></kwd>
</kwd-group>
</article-meta>
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