<?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>2007-4018</journal-id>
<journal-title><![CDATA[Revista Chapingo serie ciencias forestales y del ambiente]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo ser. cienc. for. ambient]]></abbrev-journal-title>
<issn>2007-4018</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo, Coordinación de Revistas Institucionales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40182016000100099</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2015.04.015</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Germination and dormancy-breaking of Daphne giraldii Nitsche (Thymelaeaceae) seeds from northwestern China]]></article-title>
<article-title xml:lang="es"><![CDATA[Germinación y ruptura de latencia en semillas de Daphne giraldii Nitsche (Thymelaeaceae) provenientes del noroeste de China]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[Yan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enhe]]></surname>
<given-names><![CDATA[Zhang]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Qinli]]></surname>
<given-names><![CDATA[Wang]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zhuhong]]></surname>
<given-names><![CDATA[Mao]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Gansu Agricultural University College of Agronomy ]]></institution>
<addr-line><![CDATA[ Lanzhou]]></addr-line>
<country>China</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hexi University China Key Laboratory of Hexi Corridor Resources Utilization ]]></institution>
<addr-line><![CDATA[ ZhangYe]]></addr-line>
<country>China</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Gansu Taikang Pharmaceutical Company  ]]></institution>
<addr-line><![CDATA[ Wuwei]]></addr-line>
<country>China</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<volume>22</volume>
<numero>1</numero>
<fpage>99</fpage>
<lpage>113</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182016000100099&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182016000100099&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182016000100099&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Daphne giraldii Nitsche (Thymelaeaceae) is a perennial evergreen shrub that is widely used in the ornamental plant and pharmaceutical industries in China. It exhibits dormancy, which delays and reduces germination. This study determined the effects of chemical treatment, stratification and burial treatment for overcoming the seed dormancy of D. giraldii. Results showed that chemical pre-treatment was less effective in breaking dormancy. The best germination percentage (GP) was 52.33 %, a germination rate (GR) of 1.19 only observed after 70 d of seed stratification at 5 °C treatment, indicating that the germination behavior of D. giraldii was not significantly affected by stratification. The physiological dormancy of D. giraldii seeds was alleviated during burial. Seeds buried at 100 cm depth for 170 days showed the highest germination success with GP of 86.5 % and GR of 10.11, which was the most effective treatment to alleviate seed dormancy. This information may be useful to restore and conserve other shrubs grown in Northwestern China and elucidate their survival under similar extreme environments.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Daphne giraldii Nitsche (Thymelaeaceae) es un arbusto de hoja perenne utilizado ampliamente como planta ornamental y en la industria farmacéutica de China. La planta exhibe latencia que retrasa y reduce la germinación. Este estudio determinó los efectos del tratamiento químico, la estratificación y el tratamiento de siembra de semillas para interrumpir la latencia de D. giraldii. Los resultados mostraron que el pretratamiento químico fue el menos eficaz. El mejor porcentaje de germinación (GP) fue 52.33 % y solamente se observó una tasa de germinación (GR) de 1.19 después de 70 días de la estratificación de semillas a una temperatura de 5 °C. Esto indica que el comportamiento de la germinación de D. giraldii no se vio afectado significativamente por la estratificación. La latencia fisiológica de semillas de D. giraldii se mitigó durante la siembra de semillas. Las semillas enterradas a 100 cm de profundidad por 170 días germinaron exitosamente con 86.5 % e índice de germinación de 10.11, por lo que fue el tratamiento más eficaz para mitigar la latencia de las semillas. Esta información puede ser útil para restaurar y conservar otros arbustos que crecen en el noroeste de China y dilucidar su supervivencia en condiciones extremas similares.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Stratification]]></kwd>
<kwd lng="en"><![CDATA[gibberellic acid]]></kwd>
<kwd lng="en"><![CDATA[6-benzyladenine]]></kwd>
<kwd lng="en"><![CDATA[burial]]></kwd>
<kwd lng="en"><![CDATA[germination capacity]]></kwd>
<kwd lng="es"><![CDATA[Estratificación]]></kwd>
<kwd lng="es"><![CDATA[ácido giberélico]]></kwd>
<kwd lng="es"><![CDATA[6-benciladenina]]></kwd>
<kwd lng="es"><![CDATA[siembra de semilla]]></kwd>
<kwd lng="es"><![CDATA[capacidad de germinación]]></kwd>
</kwd-group>
</article-meta>
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