<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342014001301787</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v0i9.1065</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índices de crecimiento de plántulas de lulo (Solanum quitoense [Lamarck.]) en sustratos orgánicos]]></article-title>
<article-title xml:lang="en"><![CDATA[Seedlings growth rates of lulo (Solanum quitoense [Lamarck.]) In organic substrates]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Merino]]></surname>
<given-names><![CDATA[Fernando Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Téllez]]></surname>
<given-names><![CDATA[Libia Iris]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ladewig]]></surname>
<given-names><![CDATA[Peter]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Córdoba Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Beuth University of Applied Sciences  ]]></institution>
<addr-line><![CDATA[Berlin ]]></addr-line>
<country>Alemania</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2014</year>
</pub-date>
<volume>5</volume>
<numero>spe9</numero>
<fpage>1787</fpage>
<lpage>1793</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342014001301787&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342014001301787&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342014001301787&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El lulo (Solanum quitoense [Lamarck.]) es una especie con alto potencial de comercialización a nivel global dado el valor nutritivo de sus frutos. En México, la investigación sobre esta especie es escasa y uno de los primeros retos es la obtención de plántulas vigorosas que garanticen rendimiento y buena calidad de frutos. En esta investigación se estimaron índices de crecimiento de plántulas de lulo provenientes de semillas germinadas y crecidas en tres sustratos orgánicos constituidos por turba y composta en diferentes relaciones (60/40, 40/60 y 20/80, v/v) en invernadero. El experimento tuvo una distribución completamente al azar con cuatro repeticiones, y la unidad experimental contenía 32 plántulas. Sesenta días después de la siembra se tomaron datos directos de crecimiento para la estimación de los índices siguientes: razón de área foliar (RAF), área foliar específica (AFE), proporción de hoja (PH) y proporción de raíz (PR). Los datos obtenidos fueron analizados estadísticamente, realizando un análisis de varianza y una prueba de comparación de medias. Los resultados indican que la composta en mayor proporción en el sustrato reduce la RAF, el AFE y PH; por el contrario, incrementa la PR. La adición de composta al sustrato en proporción 80%, afectó negativamente los índices de crecimiento de las plántulas de lulo debido al incremento en la conductividad eléctrica, y de Na+, Cl- y HCO3 - solubles, en el sustrato. Se concluye que la composta puede ser usada con resultados satisfactorios, en la producción de plántulas de lulo, en combinación con turba, en proporciones iguales o menores a 60%.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Lulo (Solanum quitoense [Lamarck.]) is a species with high potential for global marketing because of the nutritional value of its fruit. In Mexico, research on this species is scarce and one of the first challenges is to obtain vigorous seedlings to ensure yield and good fruit quality. In this research, growth rates lulo seedlings from germinated seeds and grown in three organic substrates made &#8203;of peat and compost in different ratios (60/40, 40/60 and 20/80, v/v) in the greenhouse were estimated. The experiment had a distribution completely randomized design with four replications, and the experimental unit contained 32 seedlings. Leaf area ratio (RAF), specific leaf area (SLA), leaf ratio (PH) and root ratio (PR): sixty days after sowing growth, data direct for the estimation of the following indexes were taken. The data obtained were analysed statistically with an analysis of variance and mean comparison test. The results indicated that, the compost in higher proportion in the substrate reduces the RAF, the AFE and PH; on the other hand, increases the PR. Adding compost to the substrate in proportion 80%, negatively affected growth rates of seedlings of lulo due to increased electrical conductivity, and Na+, Cl- and HCO3 - soluble in the substrate. It is concluded that, the compost can be used with satisfactory results in the production of lulo seedlings in combination with peat, in equal or less than 60%.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[área foliar específica]]></kwd>
<kwd lng="es"><![CDATA[proporción de hoja]]></kwd>
<kwd lng="es"><![CDATA[proporción de raíz]]></kwd>
<kwd lng="es"><![CDATA[relación de área foliar]]></kwd>
<kwd lng="es"><![CDATA[solanaceae]]></kwd>
<kwd lng="en"><![CDATA[leaf area ratio]]></kwd>
<kwd lng="en"><![CDATA[leaf proportion]]></kwd>
<kwd lng="en"><![CDATA[root ratio]]></kwd>
<kwd lng="en"><![CDATA[solanaceae]]></kwd>
<kwd lng="en"><![CDATA[specific leaf area]]></kwd>
</kwd-group>
</article-meta>
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