<?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>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802019000300301</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[VARIACIÓN ENTRE POBLACIONES DE Abies religiosa (H.B.K.) Schl. et Cham A LO LARGO DE UN GRADIENTE ALTITUDINAL. I. CAPACIDAD GERMINATIVA DE LA SEMILLA]]></article-title>
<article-title xml:lang="en"><![CDATA[VARIATION AMONG Abies religiosa (H.B.K.) Schl. et Cham POPULATIONS ALONG AN ALTITUDINAL GRADIENT. I. SEED GERMINATION CAPACITY]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Bibian]]></surname>
<given-names><![CDATA[Marisol A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castellanos-Acuña]]></surname>
<given-names><![CDATA[Dante]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Romero]]></surname>
<given-names><![CDATA[Mariela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lindig-Cisneros]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-Farías]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[Cuauhtémoc]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Michoacana de San Nicolás Hidalgo Facultad de Biología ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico y de Estudios Superiores de Monterrey Departamento de Ciencias ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Michoacana de San Nicolás Hidalgo Instituto de Investigaciones Agropecuarias y Forestales ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,University of Alberta Department of Renewable Resources ]]></institution>
<addr-line><![CDATA[Edmonton ]]></addr-line>
<country>Canadá</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Michoacana de San Nicolás Hidalgo Facultad de Biología ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Consejo Nacional de Ciencia y Tecnología  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Investigaciones en Ecosistemas y Sustentabilidad ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Servi-Ambiental El Bosque S.A. de C.V.  ]]></institution>
<addr-line><![CDATA[Morelia ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af9">
<institution><![CDATA[,Universidad Michoacana de San Nicolás Hidalgo Instituto de Investigaciones sobre los Recursos Naturales ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>42</volume>
<numero>3</numero>
<fpage>301</fpage>
<lpage>308</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802019000300301&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802019000300301&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802019000300301&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Abies religiosa (HBK) Schl. &amp; Cham. (oyamel) es una conífera nativa de México. El bosque de oyamel que se ubica en la frontera del Estado de México y Michoacán funge como refugio de poblaciones de mariposa monarca Danaus plexippus L., pero existe preocupación por el futuro de Abies religiosa en la región debido al cambio de uso de suelo y al cambio climático, pues se espera una reducción de su nicho ecológico. Con la finalidad de generar información que permita planear la cantidad de semilla necesaria a recolectar para realizar programas de reforestación a gran escala en la región de la Reserva de la Biósfera de la Mariposa Monarca, se evaluó la viabilidad y germinación de semilla de oyamel recolectada en 15 poblaciones a lo largo de un gradiente altitudinal (2850 a 3550 msnm, una cada 50 m) en el cerro de San Andrés, Michoacán. Hubo diferencias estadísticamente significativas entre poblaciones en viabilidad (P = 0.0007) y germinación (P &lt; 0.0001) de las semillas. Se encontró una relación cuadrática significativa de la viabilidad (R² = 0.510, P = 0.0138) y la germinación (R² = 0.768, P = 0.0002) con la altitud de origen de la procedencia. La semilla de poblaciones que se distribuyen entre 3000 y 3350 msnm (parte media de la distribución altitudinal) posee el valor más alto de viabilidad (48.7 %) y de germinación (19.6 %), mayor al de los extremos altitudinales superior e inferior. Si se recolecta de la zona de altitud intermedia (Zona II, de 3000 a 3350 msnm) se requerirá recolectar aproximadamente 2.0 kg de semilla para producir 10,000 plantas en vivero; en cambio, la misma meta requeriría de cinco veces más semilla de la zona de menor altitud (11.1 kg, Zona I, 2650 a 3000 msnm). Esto indica las dificultades prácticas de abastecimiento de semilla a las que se enfrentaría un programa de reforestación a gran escala, especialmente si se requiere de germoplasma originado de las poblaciones de baja altitud, para implementar migración asistida hacia mayores altitudes para aminorar los efectos del cambio climático.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Abies religiosa (HBK) Schl. &amp; Cham. (oyamel fir) is a conifer native to Mexico. The oyamel forest located on the border of the State of Mexico and Michoacán serves as a refuge for Monarch butterfly populations Danaus plexippus L., but there is concern about the future of Abies religiosa in the region due to the change in land use and the climate change; thus, a reduction of its ecological niche is expected. In order to generate information that allows plannning the amount of seed necessary to be collected to carry out large- scale reforestation programs in the region of the Monarch Butterfly Biosphere Reserve, the viability and germination of oyamel fir seeds collected from 15 populations along an altitudinal gradient (2850 to 3550 m, one every 50 m), on the San Andres hill, Michoacán, were evaluated. There were statistically significant differences among populations in seed viability (P = 0.0007) and germination (P = 0.0001). A significant quadratic relationship of seed viability (R2 = 0.510, P = 0.0138) and germination (R2 = 0.768, P = 0.0002) with the altitude of seed source was found. Seeds from populations between 3000 and 3350 msnm (middle of the altitudinal distribution) had the highest viability (48.7 %) and germination (19.6 %), higher than those of the upper and lower altitudinal limits. If collecting is made at the intermediate altitude zone (zone II from 3000 to 3350 msnm), approximately 2.0 kg of seed will be required to produce 10,000 seedlings in the nursery; in contrast, the same goal would require five times more seed from the lower altitude zone (11.1 kg, Zone I, 2650 to 3000 msnm). This indicates the practical difficulties for supplying seed that a large-scale reforestation program would face, especially if germplasm originating from low-altitude populations is required, to implement assisted migration to higher altitudes to lessen the effects of climate change.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Abies religiosa]]></kwd>
<kwd lng="es"><![CDATA[cambio climático]]></kwd>
<kwd lng="es"><![CDATA[germinación]]></kwd>
<kwd lng="es"><![CDATA[gradiente altitudinal]]></kwd>
<kwd lng="es"><![CDATA[migración asistida]]></kwd>
<kwd lng="es"><![CDATA[viabilidad]]></kwd>
<kwd lng="en"><![CDATA[Abies religiosa]]></kwd>
<kwd lng="en"><![CDATA[climate change]]></kwd>
<kwd lng="en"><![CDATA[germination]]></kwd>
<kwd lng="en"><![CDATA[altitudinal gradient]]></kwd>
<kwd lng="en"><![CDATA[assisted migration]]></kwd>
<kwd lng="en"><![CDATA[viability]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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