<?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>2305-0683</journal-id>
<journal-title><![CDATA[Investigación Agraria]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. Agrar.]]></abbrev-journal-title>
<issn>2305-0683</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, UNA.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2305-06832018000100022</article-id>
<article-id pub-id-type="doi">10.18004/investig.agrar.2018.junio.22-29</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto de cinco densidades de siembra en líneas de arveja Pisum sativum L. con el gen mutante afila]]></article-title>
<article-title xml:lang="en"><![CDATA[Effects of five planting density on pea lines Pisum sativum L. with the mutant gene afila]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Burbano Erazo]]></surname>
<given-names><![CDATA[Esteban]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez Chauza]]></surname>
<given-names><![CDATA[Jhon Jairo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Checa Coral]]></surname>
<given-names><![CDATA[Oscar Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Nariño Facultad de Ciencias Agrícolas Grupo de Investigación en Cultivos Andinos]]></institution>
<addr-line><![CDATA[Pasto ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>20</volume>
<numero>1</numero>
<fpage>22</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2305-06832018000100022&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2305-06832018000100022&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2305-06832018000100022&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo de esta investigación se enfocó en evaluar el efecto de cinco densidades de siembra sobre el comportamiento agronómico de cinco líneas de arveja Pisum sativum L. modificadas con el gen mutante afila (af). Este trabajo se llevó a cabo en el departamento de Nariño, Colombia. Para el análisis estadístico se utilizó un diseño experimental de Bloques completos al azar con arreglo en parcelas divididas y tres repeticiones. La parcela principal correspondió a las líneas con gen af y las subparcelas a las densidades D1: 100.000, D2: 200.000, D3: 50.000, D4: 83.333 y D5: 166.666 plantas por hectárea. Se presentaron diferencias estadísticas para el efecto de la densidad sobre las variables número de vainas por planta y rendimiento; para el efecto línea no hubo diferencias estadísticas, solamente para la variable, relación grano/vaina. La densidad de 100.000 plantas por hectárea fue el ajuste agronómico, que permitió obtener el mayor rendimiento proyectado con 15,81 t ha-1, respecto a las otras densidades evaluadas; en cuanto a los genotipos, el testigo variedad Andina y las líneas UNIFI4 y UNIFI2 mostraron el mejor resultado para rendimiento y fueron estadísticamente similares con 13,72; 12,18 y 11,47 t ha-1, respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective of this research was to evaluate the effect of five planting densities on the agronomic behavior of five lines of pea Pisum sativum L. modified with the mutant gene afila (af). This research was developed in the department of Nariño, Colombia. For the statistical analysis, an experimental design of complete random blocks was used, with divided plots and three replicates. The main plot corresponded to the lines with gene af and the subplots at the densities D1: 100.000, D2: 200.000, D3: 50.000, D4: 83.333 and D5: 166.666 plants per hectare. Statistical differences were presented for the effect of density on the number of pods per plant and yield; for the effect of the genotype there were no statistical differences, only for the variable, relationship grain/pod. The density of 100.000 plants per hectare was the agronomic adjustment, which allowed to obtain the highest projected yield with 15,81 t ha-1, with respect to the other evaluated densities; in terms of genotypes, the Andina variety and the lines UNIFI4 and UNIFI2 showed the best result for yield and were statistically similar with 13,72; 12,18 and 11,47 t ha-1, respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Arquitectura de planta]]></kwd>
<kwd lng="es"><![CDATA[densidad poblacional]]></kwd>
<kwd lng="es"><![CDATA[fitomejoramiento]]></kwd>
<kwd lng="es"><![CDATA[líneas promisorias.]]></kwd>
<kwd lng="en"><![CDATA[Plant architecture]]></kwd>
<kwd lng="en"><![CDATA[population density]]></kwd>
<kwd lng="en"><![CDATA[plant breeding]]></kwd>
<kwd lng="en"><![CDATA[promising lines.]]></kwd>
</kwd-group>
</article-meta>
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