<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662023000100103</article-id>
<article-id pub-id-type="doi">10.15174/au.2023.3549</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variación morfológica en semillas de Pinus pseudostrobus Lindl. altamente productores de resina]]></article-title>
<article-title xml:lang="en"><![CDATA[Morphological variation in highly resin-producing seeds of Pinus pseudostrobus Lindl.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz Flores]]></surname>
<given-names><![CDATA[Hipólito Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sáenz Reyes]]></surname>
<given-names><![CDATA[J. Trinidad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez Cárdenas]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Ramos]]></surname>
<given-names><![CDATA[Jonathan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrera Ramírez]]></surname>
<given-names><![CDATA[Rubén]]></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[Uruapan Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>33</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662023000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662023000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662023000100103&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los análisis de conos y semillas permiten evaluar las características físicas y biológicas de un lote de semillas y determinar la cantidad y calidad de semilla producida en unidades productoras de germoplasma forestal. El objetivo de este estudio fue determinar la variación morfológica y germinación de la semilla de 48 familias resineras de Pinus pseudostrobus Lindl., distribuidas en tres gradientes altitudinales en rodales naturales de la Comunidad Indígena de Nuevo San Juan Parangaricutiro (CINSJP), Michoacán. Se evaluaron las variables: ancho, largo, peso y germinación, número de semillas por kilogramo y contenido de humedad de la semilla. Los resultados mostraron diferencias significativas (p &#8804; 0.05) entre gradientes y entre familias en las variables. El tamaño, peso de la semilla y porcentajes de germinación fueron mayores en los gradientes 1 y 2 (2200 m. s. n. m.-2400 m. s. n. m. y 2401 m. s. n. m.-2600 m. s. n. m.); en número de semillas existe diferencia estadística (p &#8804; 0.05) entre familias en cada gradiente con 35 760 a 108 966 semillas (kg-1).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The analyzes of cones and seeds allow to evaluate the physical and biological characteristics of a lot of seeds and to determine the quantity and quality of seed produced in forest germplasm production units. The objective of this study was to determine the morphological variation and seed germination of 48 resin families of Pinus pseudostrobus Lindl., distributed in three altitudinal gradients, natural forests of the Indigenous Community of Nuevo San Juan Parangaricutiro, Michoacán. The evaluated variables were: width, length, weight and germination, number of seeds per kilogram, and moisture content of the seed. The results showed significant differences (p &#8804; 0.05) between gradients and between families in the variables. The size, weight of seed, and germination percentages were higher in gradients 1 and 2 (2200 m. a. s. l.-2400 m. a. s. l. and 2401 m. a. s. l.-2600 m. a. s. l.); in number of seeds there is a statistical difference (p &#8804; 0.05) between families in each gradient with 35 760 to 108 966 seeds (kg-1).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Mejoramiento genético]]></kwd>
<kwd lng="es"><![CDATA[gradiente altitudinal]]></kwd>
<kwd lng="es"><![CDATA[germinación]]></kwd>
<kwd lng="es"><![CDATA[peso semilla]]></kwd>
<kwd lng="en"><![CDATA[Genetic improvement]]></kwd>
<kwd lng="en"><![CDATA[altitude gradient]]></kwd>
<kwd lng="en"><![CDATA[germination]]></kwd>
<kwd lng="en"><![CDATA[seed weight]]></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[Antonio]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de ensayos de semillas forestales]]></source>
<year>2012</year>
<publisher-name><![CDATA[Secretaría de Medio Ambiente-Gobierno del estado de Coahuila]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aparicio-Rentería]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Viveros-Viveros]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Villa]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz-Montiel]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pineda]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Zonificación altitudinal de Pinus patula a partir de conos y semillas en la sierra de Huayacocotla, Veracruz, México]]></article-title>
<source><![CDATA[Madera y Bosques]]></source>
<year>2020</year>
<volume>26</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragón-Peralta]]></surname>
<given-names><![CDATA[R. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Ortiz]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Enríquez-del Valle]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Hernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Campos-Angeles]]></surname>
<given-names><![CDATA[G. V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selección fenotípica y características reproductivas de Pinus pseudostrobus var. oaxacana (Mirov) S.G. Harrison]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Forestales]]></source>
<year>2020</year>
<volume>11</volume>
<numero>59</numero>
<issue>59</issue>
<page-range>118-40</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barrera]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Supervivencia y crecimiento de Pinus pseudostrobus Lindl., y Pinus montezumae Lamb. en diferentes fechas de plantación]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Forestales]]></source>
<year>2018</year>
<volume>9</volume>
<numero>50</numero>
<issue>50</issue>
<page-range>323-41</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barrera-Ramírez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Aguillón]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz-Flores]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Treviño-Garza]]></surname>
<given-names><![CDATA[E. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre-Calderón]]></surname>
<given-names><![CDATA[O. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of external and internal factors on successful grafting of Pinus pseudostrobus var. oaxacana (Mirov) Harrison]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2021</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>243-56</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bramlett]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Belcher Jr]]></surname>
<given-names><![CDATA[E. W.]]></given-names>
</name>
<name>
<surname><![CDATA[DeBarr]]></surname>
<given-names><![CDATA[G. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Hertel]]></surname>
<given-names><![CDATA[G. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Karrfalt]]></surname>
<given-names><![CDATA[R. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lantz]]></surname>
<given-names><![CDATA[C. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ware]]></surname>
<given-names><![CDATA[K. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Yates]]></surname>
<given-names><![CDATA[H. O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cone analysis of southern pines: a guidebook]]></source>
<year>1977</year>
<publisher-name><![CDATA[USDA Forest Service]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transferencia tecnológica y conservación forestal en la industrialización de la resina de pino en la Sierra de Tapalpa, Jalisco, México]]></article-title>
<source><![CDATA[Relaciones Estudios de Historia y Sociedad]]></source>
<year>2020</year>
<volume>41</volume>
<numero>162</numero>
<issue>162</issue>
<page-range>34-61</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[P. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Navar-Chaidez]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Pompa-García]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Treviño-Garza]]></surname>
<given-names><![CDATA[E. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Producción de conos y semillas de Pinus pseudostrobus Lindl., en Nuevo León, México]]></article-title>
<source><![CDATA[Foresta Veracruzana]]></source>
<year>2016</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>29-36</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Francisco-Arriaga]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Rojas]]></surname>
<given-names><![CDATA[H. R. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Kido-Cruz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés-Zavala]]></surname>
<given-names><![CDATA[M. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ingreso generado por la recolección de recursos forestales en Pichátaro, Michoacán, México]]></article-title>
<source><![CDATA[Agricultura, Sociedad y Desarrollo]]></source>
<year>2011</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>107-17</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Romero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Villegas]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lindig-Cisneros]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la micorrización en el establecimiento de Pinus pseudostrobus en cárcavas]]></article-title>
<source><![CDATA[Madera y Bosques]]></source>
<year>2013</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>51-63</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Anguiano]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Upton]]></surname>
<given-names><![CDATA[U. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Herrera]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Romero-Manzanares]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación en germinación y vigor de semillas de Pinus cembroides y Pinus orizabensis]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2018</year>
<volume>52</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1161-78</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[E. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendizábal]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación en semillas de cinco procedencias de Pinus pseudostrobus Lindl]]></article-title>
<source><![CDATA[Foresta Veracruzana]]></source>
<year>2003</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>23-8</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<collab>International Seed Testing Association</collab>
<source><![CDATA[Reglas internacionales para el análisis de las semillas 2016]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[León-Lobos]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval]]></surname>
<given-names><![CDATA[A. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bolados]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rosas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Stark]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gold]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de recolección y procesamiento de semillas de especies forestales]]></source>
<year>2014</year>
<publisher-name><![CDATA[Instituto de Investigaciones Agropecuarias (Inia)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miniño]]></surname>
<given-names><![CDATA[V. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Paino]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[León]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Paulino]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización de la morfología de la semilla de Pinus occidentalis Swartz]]></article-title>
<source><![CDATA[Ciencia y Sociedad]]></source>
<year>2014</year>
<volume>39</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>777-801</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morante]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendizábal]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Alba]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estudio de conos, semillas y plántulas de Pinus greggii engelm. de una población del estado de Veracruz]]></article-title>
<source><![CDATA[Foresta Veracruzana]]></source>
<year>2005</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>23-31</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mosseler]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Major]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Simpson]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Daigle]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Lange]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[Y. S]]></given-names>
</name>
<name>
<surname><![CDATA[Johnsen]]></surname>
<given-names><![CDATA[K. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Rajora]]></surname>
<given-names><![CDATA[O. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Indicators of population viability in red spruce, Picea rubens. I. Reproductive traits and fecundity]]></article-title>
<source><![CDATA[Canadian Journal of Botany]]></source>
<year>2000</year>
<volume>78</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>928-40</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Orozco]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Coria]]></surname>
<given-names><![CDATA[V. M.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[Y. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz]]></surname>
<given-names><![CDATA[G. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de Pinus pseudostrobus Lindl. y Pinus greggii Engelm. con dos densidades de plantación en Michoacán, México]]></article-title>
<source><![CDATA[Foresta Veracruzana]]></source>
<year>2011</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>29-35</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sáenz]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Anguiano]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Áreas potenciales para establecer plantaciones forestales comerciales de Pinus pseudostrobus Lindl. y Pinus greggii Engelm. en Michoacán]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Forestales]]></source>
<year>2019</year>
<volume>2</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>29-44</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="">
<collab>Organización de las Naciones Unidas para la Alimentación y la Agricultura</collab>
<source><![CDATA[La producción mundial de productos madereros registra el mayor aumento de los últimos 70 años]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="">
<collab>Organización de las Naciones Unidas para la Alimentación y la Agricultura</collab>
<source><![CDATA[Guía para la manipulación de semillas forestales: Capítulo 9 ensayo de la semilla]]></source>
<year>1991</year>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ortiz-Bibian]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Castellanos-Acuña]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Romero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lindig-Cisneros]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva-Farías]]></surname>
<given-names><![CDATA[M. Á.]]></given-names>
</name>
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación entre poblaciones de Abies religiosa (HBK) Schl. et Cham., a lo largo de un gradiente altitudinal. I. Capacidad germinativa de la semilla]]></article-title>
<source><![CDATA[Revista Fitotecnia Mexicana]]></source>
<year>2019</year>
<volume>42</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>301-8</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pastorino]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallo]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación geográfica en peso de semilla en poblaciones naturales argentinas de "Ciprés de la Cordillera&#8221;]]></article-title>
<source><![CDATA[Revista Bosque]]></source>
<year>2000</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>95-109</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quiroz]]></surname>
<given-names><![CDATA[V. R. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Bermejo]]></surname>
<given-names><![CDATA[V. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación en características de acículas conos y semillas de Pinus radiata var. cedrosensis (Howell) Axelrod]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>1999</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>41-6</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Razo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Capulín]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Soto]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tamaño de cono y semilla en procedencias de Pinus greggii engelm. var. greggii establecidas en diferentes suelos]]></article-title>
<source><![CDATA[Revista Fitotecnia Mexicana]]></source>
<year>2012</year>
<volume>35</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>289-98</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Rangel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rubio-Licona]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Chávez-Serrano]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas-Zenteno]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Pineda]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamiento germinativo y crecimiento temprano de Pinus devoniana y Pinus pseudostrobus (Pinaceae)]]></article-title>
<source><![CDATA[BIOCYT Biología, Ciencia y Tecnología]]></source>
<year>2017</year>
<volume>10</volume>
<numero>39</numero>
<issue>39</issue>
<page-range>749-56</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendizábal]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rebolledo-Camacho]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación en conos y semillas de Pinus cembroides subsp. orizabensis D. K. Bailey de Las Cuevas, Altzayanca, Tlaxcala Stead]]></article-title>
<source><![CDATA[Foresta Veracruzana]]></source>
<year>2002</year>
<volume>4</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>25-30</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<collab>SAS Institute Inc.</collab>
<source><![CDATA[Base SAS® 9.3 Procedures Guide: Statistical Procedures]]></source>
<year>2011</year>
<publisher-name><![CDATA[SAS Institute Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Viveros-Viveros]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Upton]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variación entre procedencias de Pinus pseudostrobus establecidas en dos sitios en Michoacán, México]]></article-title>
<source><![CDATA[Revista Fitotecnia Mexicana]]></source>
<year>2006</year>
<volume>29</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>121-6</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
