<?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>0122-3461</journal-id>
<journal-title><![CDATA[Ingeniería y Desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. Desarro.]]></abbrev-journal-title>
<issn>0122-3461</issn>
<publisher>
<publisher-name><![CDATA[Fundación Universidad del Norte]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-34612020000200298</article-id>
<article-id pub-id-type="doi">10.14482/inde.38.2.628</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de los índices de vegetación NDVI, GNDVI y NDRE para la caracterización del cultivo de café (Coffea arabica)]]></article-title>
<article-title xml:lang="en"><![CDATA[Analysis of the Vegetation Indices NDVI, GNDVI, and NDRE for the Characterization of Coffee Crops (Coffea arabica)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Revelo Luna]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía Manzano]]></surname>
<given-names><![CDATA[Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montoya-Bonilla]]></surname>
<given-names><![CDATA[Bibiana P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hoyos García]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Universitaria Comfacauca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporación Universitaria Comfacauca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Corporación Universitaria Comfacauca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Parque Tecnológico de Innovación del Café y su Caficultura  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>38</volume>
<numero>2</numero>
<fpage>298</fpage>
<lpage>312</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-34612020000200298&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-34612020000200298&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-34612020000200298&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los índices de vegetación se han usado en los últimos años para determinar el tipo de cobertura, evaluar su variación temporal o establecer el estado de salud de cultivos a partir de estimaciones de características como vigor vegetal, contenido de clorofila, estado nutricional o estado hídrico. En di versos estudios, se han propuesto una va riedad de índices de vegetación que usan diferentes bandas en el espectro visible e infrarrojo cercano para obtener caracterís ticas de interés. Sin embargo, en cultivos de café estos estudios han sido limitados. El objetivo de este trabajo es evaluar las di ferencias estadísticas entre los índices de vegetación NDVI, GNDVI y NDRE, estimados a partir de imágenes aéreas tomadas a 30 m del dosel de un cultivo experimental de la especie vegetal Coffea arabica. El coeficien te de correlación de Spearman mostró que la correlación es mayor entre los índices NDVI y GNDVI en comparación con la corre lación presentada entre cualquiera de ellos y el índice NDRE. Además, se observó que, de acuerdo con los valores del coeficiente de variación y el análisis posterior de los histogramas, el índice NDRE presentó una mayor sensibilidad ante la variación de vi gor vegetal, lo que sugeriría un mayor po tencial a la hora de caracterizar el estado de desarrollo del cultivo de café, frente a los otros índices estudiados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Recently, vegetation indices have been used in order to determine the type of cover, with the interest of its temporal variation evaluation, or with the aim of determining the status of the health of crops from estimation of some charac teristics such as plant vigor, chlorophyll content, nutritional or water status. Se veral studies have put forward a range of vegetation indices that use different bands in the visible and near-infrared spectrum, to obtain characteristics of interest. In this study, statistical differen ces between the NDVI, GNDVI, and NDRE vegetation indices, estimated from aerial images taken at 30 m above the canopy of an experimental Coffea arabica crop, were evaluated. Spearman correlation coefficient showed a higher correlation between the NDVI and GNDVI indices, compared to that found between either of them and NDRE. In addition to this, it was observed that, according to the va lues of the coefficient of variation, and the subsequent analysis of the histograms, the NDRE index presented a grea ter sensitivity to variation in plant vigor, which would suggest a greater potential to characterize the state of development of coffee cultivation, compared to other studied indices.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agricultura de precisión]]></kwd>
<kwd lng="es"><![CDATA[Coffea arabica]]></kwd>
<kwd lng="es"><![CDATA[imágenes multiespectrales]]></kwd>
<kwd lng="es"><![CDATA[índices espectrales]]></kwd>
<kwd lng="en"><![CDATA[Coffea arabica]]></kwd>
<kwd lng="en"><![CDATA[multispec tral images]]></kwd>
<kwd lng="en"><![CDATA[precision agriculture]]></kwd>
<kwd lng="en"><![CDATA[spectral índices]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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