<?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>2011-2173</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Hortícolas]]></journal-title>
<abbrev-journal-title><![CDATA[rev.colomb.cienc.hortic.]]></abbrev-journal-title>
<issn>2011-2173</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Ciencias Hotícolas, Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2011-21732018000300677</article-id>
<article-id pub-id-type="doi">10.17584/rcch.2018vl2i3.7720</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Germinación y emergencia de lechuga a temperaturas elevadas]]></article-title>
<article-title xml:lang="en"><![CDATA[Germination and emergence of lettuce at elevated temperatures]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[LEMOS NETO]]></surname>
<given-names><![CDATA[HOZANO DE SOUZA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ALMEIDA-GUIMARÃES]]></surname>
<given-names><![CDATA[MARCELO DE]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[NASCIMENTO-SILVA]]></surname>
<given-names><![CDATA[BRUNO DO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[SANTOS-VIANA]]></surname>
<given-names><![CDATA[CARIS DOS]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[MEDEIROS-FILHO]]></surname>
<given-names><![CDATA[SEBASTIÃO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Federal do Ceará Centro de Ciencias Agrarias Departamento de Fitotecnia]]></institution>
<addr-line><![CDATA[Fortaleza ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Federal do Ceará Centro de Ciencias Agrarias Departamento de Fitotecnia]]></institution>
<addr-line><![CDATA[Fortaleza ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Federal do Ceará Centro de Ciencias Agrarias Departamento de Fitotecnia]]></institution>
<addr-line><![CDATA[Fortaleza ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Federal do Ceará Centro de Ciencias Agrarias Departamento de Fitotecnia]]></institution>
<addr-line><![CDATA[Fortaleza ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Federal do Ceará Centro de Ciencias Agrarias Departamento de Fitotecnia]]></institution>
<addr-line><![CDATA[Fortaleza ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>12</volume>
<numero>3</numero>
<fpage>677</fpage>
<lpage>684</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2011-21732018000300677&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2011-21732018000300677&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2011-21732018000300677&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La germinación de lechuga presenta alta sensibilidad a condiciones ambientales, principalmente a temperaturas elevadas. Con el objetivo de evaluar el rendimiento germinativo y la emergencia de siete cultivares de lechuga a temperaturas elevadas, se evaluaron en cámara de crecimiento y vivero. En cámara de crecimiento se utilizó un diseño completo al azar con arreglo factorial 7x6 entre cultivares (Red Salad Bowl, Salad Bowl Green, Marianne, Elba, Mimosa Green Salad Bowl, Crespa Lollo Bionda y Crespa para Verão) y temperatura diurna (15, 20, 25, 30, 35 y 40°C) con cuatro repeticiones. La evaluación en vivero de los cultivares empleó un diseño completamente al azar con cuatro repeticiones de 50 semillas. Los cultivares Red Salad Bowl, Salad Bowl Green y Crespa Lollo Bionda presentaron los mayores valores de germinación y emergencia en ambos experimentos, alcanzando 81% de la germinación en las temperaturas 25, 30 y 35°C. 'Red Salad Bowl' y 'Salad Bowl Green' alcanzaron emergencia de 70% y 'Crespa Lollo Bionda' superior al 50% mientras que los demás cultivares estuvieron por debajo de 22%. 'Red Salad Bowl', 'Salad Bowl Green' y 'Crespa Lollo Bionda' presentan elevada germinación y emergencia en temperaturas altas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Lettuce seeds have high sensitivity to the environmental conditions in which they are germinated, especially at elevated temperatures. The aim of this study was to evaluate the germination performance and emergence of seven lettuce cultivars at a high temperature, these were evaluated in growth chamber and nursery. In growth chamber was conducted in a completely randomized design (CRD) with a full 7x 6 factorial (cultivars: Red Salad Bowl, Salad Bowl Green, Marianne, Elba, Mimosa Green Salad Bowl, Crespa Lollo Bionda and Crespa para Verão; daytime temperature: 15, 20, 25, 30, 35 and 40°C) with four replicates. In nursery was also conducted in a CRD with four replicates of 50 seeds each. In both experiments, the cultivars Red Salad Bowl, Salad Bowl Green and Crespa Lollo Bionda presented the higher levels of germination and emergence. For germination, these cultivars showed results greater than 81% at temperatures of 25, 30 and 35°C. For emergence, Red Salad Bowl and Salad Bowl Green had an average of 70%, and Crespa Lollo Bionda had 50%, higher than the other cultivars, which had values below 22%. 'Red Salad Bowl', 'Green Salad Bowl' and 'Crespa Lollo Bionda' had high germination and emergence of seeds at high temperatures.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Lactuca sativa L.]]></kwd>
<kwd lng="es"><![CDATA[selección de cultivares]]></kwd>
<kwd lng="es"><![CDATA[clima tropical]]></kwd>
<kwd lng="es"><![CDATA[termoinhibición]]></kwd>
<kwd lng="en"><![CDATA[Lactuca sativa L.]]></kwd>
<kwd lng="en"><![CDATA[cultivar selection]]></kwd>
<kwd lng="en"><![CDATA[tropical climate]]></kwd>
<kwd lng="en"><![CDATA[thermoinhibition]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Argyris]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Truco]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ochoa]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Mchale]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dahal]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Deynze]]></surname>
<given-names><![CDATA[A. Van]]></given-names>
</name>
<name>
<surname><![CDATA[Michelmore]]></surname>
<given-names><![CDATA[R.W]]></given-names>
</name>
<name>
<surname><![CDATA[Bradford]]></surname>
<given-names><![CDATA[K.J.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A gene encoding an abscisic acid biosynthetic enzyme (LsNCED4) collocates with the high temperature germination locus Htg6.1 in lettuce (Lactuca sp.)]]></article-title>
<source><![CDATA[Theor. Appl. Genet.]]></source>
<year>2011</year>
<volume>122</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>95-108</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bufalo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Amaro]]></surname>
<given-names><![CDATA[A.C.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[H.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Corsato]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ono]]></surname>
<given-names><![CDATA[E.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Períodos de estratificação na germinação de sementes de alface (Lactuca sativa L.) sob diferentes condições de luz e temperatura]]></article-title>
<source><![CDATA[Rev. Sem. Ciên. Agrar.]]></source>
<year>2012</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>93-940</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Catão]]></surname>
<given-names><![CDATA[H.C.R.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gomes]]></surname>
<given-names><![CDATA[L.A.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[H.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Guimaraes]]></surname>
<given-names><![CDATA[R.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fonseca]]></surname>
<given-names><![CDATA[P.H.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Caixeta]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aspectos fisiológicos e bioquímicos da germinação de sementes de alface em diferentes temperaturas]]></article-title>
<source><![CDATA[Pesq. Agropec. Bras.]]></source>
<year>2014</year>
<volume>49</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>316-22</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sodium nitroprusside, ferricyanide, nitrite and nitrate decrease the thermo-dormancy of lettuce seed germination in a nitric oxide-dependent manner in light]]></article-title>
<source><![CDATA[South Afr. J. Bot.]]></source>
<year>2012</year>
<volume>78</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>139-46</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kozarewa]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Cantliffe]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Nagata]]></surname>
<given-names><![CDATA[R.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Stoffella]]></surname>
<given-names><![CDATA[P.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[High maturation temperature of lettuce seeds during development increased ethylene production and germination at elevated temperatures]]></article-title>
<source><![CDATA[J. Amer. Soc. Hortic. Sci.]]></source>
<year>2006</year>
<volume>131</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>564-70</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maguire]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Speed of germination-aid in selection and evaluation for seedling emergence and vigor]]></article-title>
<source><![CDATA[Crop Sci.]]></source>
<year>1962</year>
<volume>2</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>176-7</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<collab>MAPA, Ministério da Agricultura, Pecuária e Abastecimento de Brasil</collab>
<source><![CDATA[Regras para análise de sementes]]></source>
<year>2009</year>
<publisher-loc><![CDATA[Brasília ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marcos-Filho]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kikuti]]></surname>
<given-names><![CDATA[J.A.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Condicionamento fisiológico de sementes de couve-flor e desempenho das plantas em campo]]></article-title>
<source><![CDATA[Rev. Hortc. Bras.]]></source>
<year>2008</year>
<volume>26</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>165-9</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[W.M]]></given-names>
</name>
<name>
<surname><![CDATA[Cantliffe]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Huber]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ethylene evolution and endo-ß-mannanase activity during lettuce seed germination at high temperature]]></article-title>
<source><![CDATA[Sci. Agríc.]]></source>
<year>2004</year>
<volume>61</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>156-63</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[W.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[R.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Testes para avaliação do potencial fisiológico de sementes de alface e sua relação com a germinação sob temperaturas adversas.]]></article-title>
<source><![CDATA[Rev. Bras. Sementes]]></source>
<year>2007</year>
<volume>29</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>175-9</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[WM.]]></given-names>
</name>
<name>
<surname><![CDATA[Dias]]></surname>
<given-names><![CDATA[D.C.F.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[P.P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Qualidade da semente e estabelecimento de plantas de hortaliças no campo. pp. 79-106]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[W.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hortaliças: tecnologia de produção de sementes]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Brasília ]]></publisher-loc>
<publisher-name><![CDATA[Embrapa Hortaliças]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[W.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Croda]]></surname>
<given-names><![CDATA[M.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopes]]></surname>
<given-names><![CDATA[A.C.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Produção de sementes, qualidade fisiológica e identificação de genótipos de alface termotolerantes]]></article-title>
<source><![CDATA[Rev. Bras. Sementes]]></source>
<year>2012</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>510-7</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[A.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gomes Filho]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Germinação e vigor de sementes de sorgo forrageiro sob estresse hídrico e salino]]></article-title>
<source><![CDATA[Rev. Bras. Sementes]]></source>
<year>2009</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>48-56</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
