<?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>1405-3195</journal-id>
<journal-title><![CDATA[Agrociencia]]></journal-title>
<abbrev-journal-title><![CDATA[Agrociencia]]></abbrev-journal-title>
<issn>1405-3195</issn>
<publisher>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-31952017000400425</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Monitoreo de la calidad proteica de maíz o2 (Zea mays L.) en líneas endogámicas y su progenie F1 y F2]]></article-title>
<article-title xml:lang="en"><![CDATA[Monitoring protein quality of o2 maize (Zea mays L.) in inbred lines and their F1 and F2 progeny]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arellano-Vázquez]]></surname>
<given-names><![CDATA[J. Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Ramos]]></surname>
<given-names><![CDATA[J. Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Ramírez]]></surname>
<given-names><![CDATA[Elpidio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez y-Gómez]]></surname>
<given-names><![CDATA[Y. Mercedes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Hernández]]></surname>
<given-names><![CDATA[G. Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[ Texcoco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Politécnico Nacional Departamento de Bioprocesos Unidad Profesional Interdisciplinaria de Biotecnología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>51</volume>
<numero>4</numero>
<fpage>425</fpage>
<lpage>436</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-31952017000400425&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-31952017000400425&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-31952017000400425&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El maíz opaco 2 (o2) (Zea mays L.) es una opción para mejorar la nutrición humana en sectores sociales que basan su alimentación en este cereal, por sus elevados contenidos de los aminoácidos esenciales lisina y triptófano, por lo cual su mejoramiento genético es relevante. En este estudio se analizó la obtención de híbridos de maíz o2, desde las líneas parentales hasta la generación de consumo de grano (la F2), Los objetivos fueron determinar el contenido de triptófano, lisina, proteína total e índice de calidad de proteína de seis líneas de maíz o2, de las 15 cruzas simples formadas con ellas y de la generación F2 de esas cruzas, y además observar si esas variables disminuyen al pasar de la F1 a la F2. En el año 2011 se sembraron las líneas de maíz o2 (M1 a M6) y las 15 cruzas simples directas formadas con las líneas anteriores, mientras que la generación F2 de las cruzas anteriores y el H70 (testigo regional) se sembraron al año siguiente. El diseño experimental fue completamente al azar con dos repeticiones. En el grano cosechado de cada genotipo se determinaron los contenidos de lisina, triptófano, proteína total e índice de calidad de proteína y se estimaron las diferencias de estos valores entre F1 y F2. Las líneas M2 y M3 y las cruzas M2 x M4, M2 x M6 y M3 x M6 presentaron los contenidos más altos de lisina, triptófano, proteína total e índice de calidad de proteína. La calidad de proteína no fue estable en la F2, a excepción de M3 x M6 que conservó el índice de calidad de proteína en esta generación y fue la cruza más consistente y estable. La depresión endogámica no incidió sobre las cruzas con calidad intermedia de proteína (M2 x M5 y M5 x M6) y tampoco sobre la lisina, que fue la variable experimental de mejor respuesta en todas las etapas genotécnicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Because of its high contents of essential amino acids lysine and tryptophan, opaque-2 (o2) maize (Zea mays L.) is an option for improving human nutrition in social sectors whose diet is based on maize. For this reason, its genetic improvement is relevant. This study analyzed the o2 maize hybrids from the parent lines up to the generation of grain for consumption (F2). The objectives were to determine the contents of tryptophan, lysine and total protein and the quality protein index of the six o2 maize lines, of the 15 single crosses formed with these lines and the F2 generation of these crosses, as well as to observe whether these variables decreased between F1 and F2. The o2 maize lines (M1 to M6) and the 15 single direct crosses formed with these lines were sown in 2011, whereas generation F2 of the crosses and H70 (regional control) were sown the following year. The experimental design was completely randomized with two replications. Contents of lysine, tryptophan and total protein and the quality protein index were determined in harvested grain of each genotype, and differences in these values between F1 and F2 were estimated. Lines M2 and M3 and the crosses M2 x M4, M2 x M6 and M3 x M6 had higher contents of lysine, tryptophan and total protein and a higher quality protein index. Protein quality was not stable in F2, with the exception of M3 x M6, which maintained the ICP in this generation and was the most consistent and stable cross. Inbreeding depression did not affect the crosses with intermediate protein quality (M2 x M5 and M5 x M6) nor did it affect lysine content, which was the experimental variable with the best response in all of the breeding stages.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[aminoácidos esenciales]]></kwd>
<kwd lng="es"><![CDATA[calidad de proteína]]></kwd>
<kwd lng="es"><![CDATA[depresión endogámica]]></kwd>
<kwd lng="es"><![CDATA[lisina]]></kwd>
<kwd lng="es"><![CDATA[opaco2]]></kwd>
<kwd lng="es"><![CDATA[QPM]]></kwd>
<kwd lng="es"><![CDATA[triptófano]]></kwd>
<kwd lng="en"><![CDATA[essential amino acids]]></kwd>
<kwd lng="en"><![CDATA[quality protein]]></kwd>
<kwd lng="en"><![CDATA[inbreeding depression]]></kwd>
<kwd lng="en"><![CDATA[lysine]]></kwd>
<kwd lng="en"><![CDATA[opaque2]]></kwd>
<kwd lng="en"><![CDATA[QPM]]></kwd>
<kwd lng="en"><![CDATA[tryptophan]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arellano V]]></surname>
<given-names><![CDATA[J. L]]></given-names>
</name>
<name>
<surname><![CDATA[Virgen V]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila P]]></surname>
<given-names><![CDATA[M. Á]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas M]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<source><![CDATA[]]></source>
<year>2011</year>
<publisher-loc><![CDATA[México, D.F ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP). Campo Experimental Valle de México (CEVAMEX)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bjarnason M]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Vasal]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Breeding of quality protein maize (QPM)]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Jules]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Plant Breeding Reviews]]></source>
<year>1992</year>
<volume>Vol. 9</volume>
<page-range>181-210</page-range><publisher-name><![CDATA[Purdue University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fernández S]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Morales C]]></surname>
<given-names><![CDATA[L. A]]></given-names>
</name>
<name>
<surname><![CDATA[Gálvez M]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Importancia de los maíces nativos de México en la dieta nacional. Una revisión indispensable]]></article-title>
<source><![CDATA[Rev. Fitotec. Mex]]></source>
<year>2013</year>
<volume>36</volume>
<numero>Supl. 3-A</numero>
<issue>Supl. 3-A</issue>
<page-range>275-83</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Galicia]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Nurit]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios R]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Laboratory protocols: Maize nutrition quality and plant tissue analysis laboratory]]></source>
<year>2009</year>
<publisher-loc><![CDATA[El Batán, Texcoco, México ]]></publisher-loc>
<publisher-name><![CDATA[CIMMYT]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gerdes]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plant B vitamin pathways and their compartmentation: A guide for the perplexed]]></article-title>
<source><![CDATA[J. Exp. Bot]]></source>
<year>2012</year>
<volume>63</volume>
<page-range>5379-95</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutiérrez H.]]></surname>
<given-names><![CDATA[G. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Formación de híbridos de maíz con calidad proteica: lisina, triptófano e índice de calidad]]></article-title>
<source><![CDATA[Rev. Fac. Agron]]></source>
<year>2014</year>
<volume>31</volume>
<page-range>171-89</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutiérrez-Rojas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Paul-Scott]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Leyva]]></surname>
<given-names><![CDATA[O. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Menz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phenotypic characterization of quality protein maize endosperm modification and amino acid contents in a segregating recombinant inbred population]]></article-title>
<source><![CDATA[Crop Sci]]></source>
<year>2008</year>
<volume>48</volume>
<page-range>1714-22</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Leal]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Lobato-Ortiz]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Zavala]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-López]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Méndez-López]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bonilla-Barrientos]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Bautista]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamiento agronómico de poblaciones F2 de híbridos de tomate (Solanum lycopersicum L.)]]></article-title>
<source><![CDATA[Rev. Fitotec. Mex]]></source>
<year>2013</year>
<volume>36</volume>
<page-range>209-15</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holding]]></surname>
<given-names><![CDATA[D. R]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[B. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Chung]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Gibbon]]></surname>
<given-names><![CDATA[B. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ford]]></surname>
<given-names><![CDATA[C. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Bharti]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Messing]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamaker]]></surname>
<given-names><![CDATA[B. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Larkins]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genetic analysis of opaque-2 modifier loci in quality protein maize]]></article-title>
<source><![CDATA[Theor. Appl. Genet]]></source>
<year>2008</year>
<volume>117</volume>
<page-range>157-70</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Krivanek]]></surname>
<given-names><![CDATA[A.F]]></given-names>
</name>
<name>
<surname><![CDATA[De Groote]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gunaratna]]></surname>
<given-names><![CDATA[N.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Diallo]]></surname>
<given-names><![CDATA[A.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Friesen]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Breeding and disseminating quality protein maize (QPM) for Africa]]></article-title>
<source><![CDATA[Afr. J. Biotechnol]]></source>
<year>2007</year>
<volume>6</volume>
<page-range>312-24</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Landry]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Delhaye]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In&#64258;uence of genotype and texture on zein content in endosperm of maize grains]]></article-title>
<source><![CDATA[Ann. Appl. Biol]]></source>
<year>2007</year>
<volume>151</volume>
<page-range>349-56</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manicacci]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Epistatic interactions between O2 transcriptional activator and its target gene CyPzPDK1 control kernel trait variation in maize]]></article-title>
<source><![CDATA[Plant Physiol]]></source>
<year>2009</year>
<volume>150</volume>
<page-range>506-20</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mendoza-E.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contenido de lisina y triptófano en genotipos de maíz de alta calidad proteica y normal]]></article-title>
<source><![CDATA[Universidad y Ciencia]]></source>
<year>2006</year>
<volume>22</volume>
<page-range>153-61</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mertz]]></surname>
<given-names><![CDATA[E. T]]></given-names>
</name>
<name>
<surname><![CDATA[Bates]]></surname>
<given-names><![CDATA[L. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Nelson]]></surname>
<given-names><![CDATA[O. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mutant gene that changes protein composition and increases lysine content of maize endosperm]]></article-title>
<source><![CDATA[Science]]></source>
<year>1964</year>
<volume>145</volume>
<page-range>279-80</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[M. L]]></given-names>
</name>
<name>
<surname><![CDATA[López P]]></surname>
<given-names><![CDATA[M. A]]></given-names>
</name>
</person-group>
<source><![CDATA[Impactos del mejoramiento de maíz en América Latina 1996 - 1997]]></source>
<year>2000</year>
<publisher-loc><![CDATA[El Batán, Texcoco, México ]]></publisher-loc>
<publisher-name><![CDATA[CIMMYT]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nuss]]></surname>
<given-names><![CDATA[E. T]]></given-names>
</name>
<name>
<surname><![CDATA[Tanumihardjo]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality protein for Africa: Closing the protein inadequacy gap in vulnerable populations]]></article-title>
<source><![CDATA[Am. Soc. Nutr]]></source>
<year>2011</year>
<volume>2</volume>
<page-range>217-24</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<collab>Organización de las Naciones Unidas para la Agricultura y la Alimentación</collab>
<source><![CDATA[Div. Estadísticas (FAOSTAT)]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<collab>Organización para la Cooperación y el Desarrollo Económico</collab>
<collab>Organización de las Naciones Unidas para la Agricultura y la Alimentación</collab>
<collab>OCDE/FAO</collab>
<source><![CDATA[Perspectivas Agrícolas 2011-2020]]></source>
<year>2011</year>
<publisher-name><![CDATA[OECD Publishing/FAO]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salinas M]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez C]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Metodologías de análisis de la calidad nixtamalera-tortillera en maíz]]></source>
<year>2006</year>
<publisher-loc><![CDATA[México D. F ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP). Campo Experimental Valle de México (CEVAMEX)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Serna S]]></surname>
<given-names><![CDATA[S. O]]></given-names>
</name>
<name>
<surname><![CDATA[Amaya G]]></surname>
<given-names><![CDATA[C. A]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera M]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Melesio C]]></surname>
<given-names><![CDATA[J. L]]></given-names>
</name>
<name>
<surname><![CDATA[Preciado O]]></surname>
<given-names><![CDATA[R. E]]></given-names>
</name>
<name>
<surname><![CDATA[Terrón I]]></surname>
<given-names><![CDATA[A. D]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez C]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of the time-cooking and tortilla making properties of quality protein maize hybrids grown in Mexico]]></article-title>
<source><![CDATA[P. Food Human Nutr]]></source>
<year>2008</year>
<volume>63</volume>
<page-range>119-25</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<collab>Statistical Analysis System (SAS)</collab>
<source><![CDATA[SAS/STAT]]></source>
<year>2002</year>
<edition>Ver. 9</edition>
<publisher-loc><![CDATA[Cary NC, USA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Inst. Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vázquez C]]></surname>
<given-names><![CDATA[G. M]]></given-names>
</name>
<name>
<surname><![CDATA[Mejía A]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Tout C]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez M]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características de granos y tortillas de maíces de alta calidad proteínica desarrollados para los valles altos centrales de México]]></article-title>
<source><![CDATA[Rev. Fitotec. Mex]]></source>
<year>2012</year>
<volume>35</volume>
<page-range>23-31</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
