<?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>S2011-21732018000200329</article-id>
<article-id pub-id-type="doi">10.17584/rcch.2018vl2i2.7566</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estimación de la concentración de clorofila mediante métodos no destructivos en vid (Vitis vinifera L.) cv. Riesling Becker]]></article-title>
<article-title xml:lang="en"><![CDATA[Chlorophyll concentration estimation using non-destructive methods in grapes (Vitis vinifera L.) cv. Riesling Becker]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CASTAÑEDA]]></surname>
<given-names><![CDATA[CRISTIAN SANTIAGO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ALMANZA-MERCHÁN]]></surname>
<given-names><![CDATA[PEDRO JOSÉ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PINZÓN]]></surname>
<given-names><![CDATA[ELBERTH HERNANDO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CELY-REYES]]></surname>
<given-names><![CDATA[GERMÁN EDUARDO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[SERRANO-CELY]]></surname>
<given-names><![CDATA[PABLO ANTONIO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia (UPTC) Facultad de Ciencias Agropecuarias Programa de Maestría en Fisiología Vegetal]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia (UPTC) Facultad de Ciencias Agropecuarias Grupo de Investigaciones GIPSO]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia (UPTC) Facultad de Ciencias Agropecuarias Grupo de Investigaciones Agrícolas]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<volume>12</volume>
<numero>2</numero>
<fpage>329</fpage>
<lpage>337</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2011-21732018000200329&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2011-21732018000200329&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2011-21732018000200329&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El análisis de pigmentos en plantas es un procedimiento de laboratorio y comúnmente no es una medida inmediata que se realice in situ. El SPAD 502 y CCM-200 son equipos para estimar de modo indirecto, no destructivo y rápido el contenido de clorofila. La concentración de pigmentos fotosintéticos se relaciona con la concentración foliar de nitrógeno, por lo que de forma indirecta se puede conocer la deficiencia o exceso del elemento, puede servir como fundamento técnico para sugerir el manejo adecuado del cultivo, en busca de potencializar la eficiencia fotosintética, calidad y el rendimiento de un viñedo. La investigación buscó comparar las mediciones entre el medidor portátil de clorofila SPAD-502 y CCM-200, en la variedad de uva Riesling Becker, bajo condiciones de clima frío tropical, y con ello determinar el comportamiento de clorofila durante el crecimiento de las hojas 4, 5 y 6, desde floración hasta vendimia. La relación entre las mediciones con el SPAD-502 y el CCM-200 se ajustaron a un polinomio de segundo grado determinado por la ecuación, para el Índice de Concentración de Clorofila, como ICC = 0,014SPAD2-0,2396SPAD + 5,8021. Con un valor de R 2=0,9343 (n = 96; P &#8804;0,0001), el cual indica que existe una alta correlación entre los equipos portátiles empleados en el presente estudio para determinar la clorofila de forma no destructiva. Las evaluaciones realizadas con los equipos permitieron obtener medidas rápidas y confiables. Siendo importante la elección del momento de medición de acuerdo con el estadio fenológico de la planta debido a la alta variabilidad en los contenidos de clorofila que se presentan en relación a la filotaxia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Pigment analysis is a laboratory procedure and is not an immediate measurement to be performed in situ. The SPAD 502 and CCM-200 are equipments used for non-destructive, fast, and indirect estimates of chlorophyll contents. The concentration of photosynthetic pigments is related to the foliar concentration of nitrogen, so indirectly, it is possible to observe the deficiency or excess of this element, providing a technical basis to suggest the proper management of the crop in order to potentiate the photosynthetic efficiency, quality and yield of a vineyard. This research sought to compare measurements between the portable chlorophyll meter SPAD-502 vs. CCM-200 in the Riesling Becker grape variety under cold tropical climate conditions to determine the behavior of chlorophyll during the growth of leaves 4, 5 and 6, from flowering to harvest. The relationship between the measurements with the SPAD-502 and the CCM-200 were fit to a second degree polynomial determined with the equation for the Chlorophyll Concentration Index: CCI = 0.014SPAD2-0.2396SPAD + 5.8021. With a value of R 2 = 0.9343 (n = 96; P&#8804;0.0001), which indicates that there was a high correlation between the portable equipment used in the present study to determine chlorophyll with a non-destructive method. The evaluations carried out with the equipment obtained fast and reliable measurements, with the choice of the moment of measurement according to the pheno-logical stage of the plant being important because of the high variability in chlorophyll contents that are presented in relation to the phylotaxy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[pigmentos]]></kwd>
<kwd lng="es"><![CDATA[medidor portátil]]></kwd>
<kwd lng="es"><![CDATA[CCM-200]]></kwd>
<kwd lng="es"><![CDATA[SPAD 502]]></kwd>
<kwd lng="es"><![CDATA[métodos no destructivos]]></kwd>
<kwd lng="es"><![CDATA[viñedos tropicales]]></kwd>
<kwd lng="es"><![CDATA[indicadores diagnósticos]]></kwd>
<kwd lng="en"><![CDATA[pigments]]></kwd>
<kwd lng="en"><![CDATA[portable meter]]></kwd>
<kwd lng="en"><![CDATA[CCM-200]]></kwd>
<kwd lng="en"><![CDATA[SPAD 502]]></kwd>
<kwd lng="en"><![CDATA[non-destructive methods]]></kwd>
<kwd lng="en"><![CDATA[tropical vineyards]]></kwd>
<kwd lng="en"><![CDATA[diagnostic indicators]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<collab>Agronet</collab>
<source><![CDATA[Análisis - Estadísticas, cultivo de Uva Colombia]]></source>
<year>2018</year>
<publisher-name><![CDATA[Ministerio de Agricultura y Desarrollo Rural de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alizadeh]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[S.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[V.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhattacharya]]></surname>
<given-names><![CDATA[R.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Yadav]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In vitro responses of grape rootstocks to NaCl]]></article-title>
<source><![CDATA[Biol. Plant]]></source>
<year>2010</year>
<numero>54</numero>
<issue>54</issue>
<page-range>381-5</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allen]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Center]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Mattison]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In situ estimates of water hyacinth leaf tissue nitrogen using a SPAD-502 chlorophyll meter]]></article-title>
<source><![CDATA[Aquat. Bot]]></source>
<year>2012</year>
<numero>100</numero>
<issue>100</issue>
<page-range>72-5</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Almanza-Merchán]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Determinación del crecimiento y desarrollo del fruto de vid (Vitis vinifera L.) bajo condiciones de clima frío tropical]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Bogotá, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Facultad de Agronomía, Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Almanza-Merchán]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[González-Merchán]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bala-guera-López]]></surname>
<given-names><![CDATA[H.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La posición de la hoja y su efecto sobre la calidad y producción de frutos de vid (Vitis vinifera L.) var. Riesling X Silvaner]]></article-title>
<source><![CDATA[Rev. Colomb. Cienc. Hortic]]></source>
<year>2012</year>
<month>a</month>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>9-18</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Almanza-Merchan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Serrano]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Fischer]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de viticultura tropical colombiana]]></source>
<year>2012</year>
<month>b</month>
<publisher-loc><![CDATA[Tunja, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arregui]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Merina]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mingo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aplicación del medidor portátil en los programas de fertilización nitrogenada en patata.]]></article-title>
<source><![CDATA[Memorias Congreso Iberoamericano de Investigación y Desarrollo en Patata]]></source>
<year>2000</year>
<page-range>157-70</page-range><publisher-loc><![CDATA[Pamplona, España ]]></publisher-loc>
<publisher-name><![CDATA[Departamento de Producción Agraria, Universidad Pública de Navarra]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bertamini]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Nedunchezhian]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Photosynthetic functioning of individual grapevine leaves (Vitis vinifera L. cv. Pinot Noir) during ontogeny in the field.]]></article-title>
<source><![CDATA[Vitis]]></source>
<year>2003</year>
<volume>42</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>13-7</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borhan]]></surname>
<given-names><![CDATA[M.S]]></given-names>
</name>
<name>
<surname><![CDATA[Panigrahi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Satter]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of computer imaging technique for predicting the SPAD readings in potato leaves]]></article-title>
<source><![CDATA[Inf. Process. Agr]]></source>
<year>2017</year>
<volume>4</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>275-82</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Callejas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Kania]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Peppi]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de un método no destructivo para estimar las concentraciones de clorofila en hojas de variedades de uva de mesa]]></article-title>
<source><![CDATA[Idesia]]></source>
<year>2013</year>
<volume>31</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>19-26</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Candolfi-Vasconcelos]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Koblet]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of partial defoliation on gas exchange parameters and chlorophyll content on field grown grapevines mechanisms and limitations of the compensation capacity.]]></article-title>
<source><![CDATA[Vitis]]></source>
<year>1991</year>
<numero>30</numero>
<issue>30</issue>
<page-range>129-41</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cao]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Miao]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Feng]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gao]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Yue]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ustin]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Khosla]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Active canopy sensing of winter wheat nitrogen status: an evaluation of two sensor systems]]></article-title>
<source><![CDATA[Comp. Elect. Agric]]></source>
<year>2015</year>
<numero>112</numero>
<issue>112</issue>
<page-range>54-67</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cate]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Perkins]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chlorophyll content monitoring in sugar maple (Acer saccharum)]]></article-title>
<source><![CDATA[Tree Physiol]]></source>
<year>2003</year>
<numero>23</numero>
<issue>23</issue>
<page-range>1077-9</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nondestructive and rapid estimation of hardwood foliar nitrogen status using the SPAD-502 chlorophyll meter.]]></article-title>
<source><![CDATA[Forest Ecol. Manage]]></source>
<year>2003</year>
<volume>181</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>331-8</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[Y.Y.,]]></given-names>
</name>
<name>
<surname><![CDATA[Oh]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Oh]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Son]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of individual leaf area, fresh weight, and dry weight of hydroponically grown cucumbers (Cucumis sativus L.) using leaf length, width, and SPAD value]]></article-title>
<source><![CDATA[Sci. Hortic]]></source>
<year>2007</year>
<volume>111</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>330-4</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delegido]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Alonso]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimating chlorophyll content of crops from hypers-pectral data using a normalized area over reflectance curve (NAOC)]]></article-title>
<source><![CDATA[Int. J. Appl. Earth Obs. Geoinf]]></source>
<year>2010</year>
<volume>12</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>165-74</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Do Amarante]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Zanuzo]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Miqueloto]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Erhart]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Almeida]]></surname>
<given-names><![CDATA[J. De]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantificação da área e do teor de clorofilas emfolhas de plantas jovens de videira 'cabernet sauvignon' mediante métodos não-destrutivos]]></article-title>
<source><![CDATA[Rev. Bras. Frutic]]></source>
<year>2009</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>680-6</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elarab]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ticlavilca]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Rua]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Maslova]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[McKee]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimating chlorophyll with thermal and broadband multispectral high resolution imagery from an unmanned aerial system using relevance vector machines for precision agriculture]]></article-title>
<source><![CDATA[Int. J. Appl. Earth Obs. Geoinf]]></source>
<year>2015</year>
<numero>43</numero>
<issue>43</issue>
<page-range>32-42</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fanizza]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Ricciardi]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Bagnulo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Leaf greenness measurements to evaluate water stressed genotypes in Vitis vinifera]]></article-title>
<source><![CDATA[Euphytica]]></source>
<year>1991</year>
<volume>55</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>27-31</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hawkins]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Gardiner]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Comer]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modeling the relationship between extractable chlorophyll and SPAD-502 readings for endangered plant species research]]></article-title>
<source><![CDATA[J. Nat. Conserv]]></source>
<year>2009</year>
<volume>17</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>123-7</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Visser]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of partial defoliation, leaf position and developmental stage of the vine on leaf chlorophyll concentration in relation to the pho-tosynthetic activity and light intensity in the canopy of Vitis vinifera L. cv. Cabernet Sauvignon]]></article-title>
<source><![CDATA[S. Afr. J. Enol. Vitic]]></source>
<year>1989</year>
<numero>10</numero>
<issue>10</issue>
<page-range>67-73</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Iacono]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Bertamini]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Scienza]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Coombe]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Differential effects of canopy manipulation and shading of Vitis vinifera L. cv. Cabernet Sauvignon. leaf gas exchange, photosynthetic electron transport rate and sugar accumulation in berries]]></article-title>
<source><![CDATA[Vitis]]></source>
<year>1995</year>
<volume>34</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>201-6</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kapotis]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Zervoudakis]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Veltsistas]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Salahas]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparaison of chlorophyll meter readings with leaf chlorophyll concentration in Amaranthus vlitus: correlation with physiological processes.]]></article-title>
<source><![CDATA[Russ. J. Plant Phy-siol]]></source>
<year>2003</year>
<volume>50</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>395-7</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lorenz]]></surname>
<given-names><![CDATA[D.H]]></given-names>
</name>
<name>
<surname><![CDATA[Eichhorn]]></surname>
<given-names><![CDATA[K.W]]></given-names>
</name>
<name>
<surname><![CDATA[Blei-Holder]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Klose]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Meier]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Weber]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phãnologische entwicklungss-tadien der weinrebe (Vitis vinifera L. ssp. vinifera)]]></article-title>
<source><![CDATA[Vitic. Enol. Sci.]]></source>
<year>1994</year>
<numero>49</numero>
<issue>49</issue>
<page-range>66-70</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Novoa]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Villagran]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de un instrumento medidor de clorofila en la determinación de niveles de nitrógeno foliar en maíz]]></article-title>
<source><![CDATA[Agric. Téc]]></source>
<year>2002</year>
<volume>62</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>165-71</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ocon]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Utilización del clorofilometro SPAD 502 para diagnosticar la deficiencia de nitrógeno en sorgo (Sorgum bicolor [L.] Moench) bajo distintas dosis de nitrógeno.]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Managua ]]></publisher-loc>
<publisher-name><![CDATA[Facultad de Agronomía, Universidad Nacional Agraria]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pinzón-Sandoval]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Arias-Burgos]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Cely-Reyes]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dinámica del crecimiento del fruto de vid (Vitis vini-fera L.) cv 'Sauvignon' en trópico alto Colombiano]]></article-title>
<source><![CDATA[Cult. Cient]]></source>
<year>2017</year>
<numero>15</numero>
<issue>15</issue>
<page-range>106-15</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quijano]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ecología de una conexión solar. De la adoración del sol al desarrollo vitivinícola regional.]]></article-title>
<source><![CDATA[Cult. Cient]]></source>
<year>2004</year>
<numero>2</numero>
<issue>2</issue>
<page-range>5-9</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación temprana de la deficiencia del nitrógeno en café y aplicaciones]]></article-title>
<source><![CDATA[Avances Técnicos Cenicafe]]></source>
<year>2012</year>
<numero>420</numero>
<issue>420</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Correa]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Zúñiga]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reliability of different color spaces to estimate nitrogen SPAD values in maize]]></article-title>
<source><![CDATA[Comp. Elect. Agric]]></source>
<year>2017</year>
<numero>143</numero>
<issue>143</issue>
<page-range>14-22</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Richardson]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Duigan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Berlyn]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of noninvasive methods to estimate foliar chlorophyll content]]></article-title>
<source><![CDATA[New Phytol]]></source>
<year>2002</year>
<numero>153</numero>
<issue>153</issue>
<page-range>185-94</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rincón]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ligarreto]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relación entre nitrógeno foliar y el contenido de clorofila, en maíz asociado con pastos en el piedemonte llanero colombiano]]></article-title>
<source><![CDATA[Cor-poica Cienc. Tecnol. Agropecu]]></source>
<year>2010</year>
<volume>11</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>122-8</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Alcántar]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Etchevers]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zantizó]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimación de la concentración de nitrógeno y clorofila en tomate mediante un medidor portátil de clorofila]]></article-title>
<source><![CDATA[Terra Latinoam]]></source>
<year>1998</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-41</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romano]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Zia]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[W]]></surname>
<given-names><![CDATA[Spreer]]></given-names>
</name>
<name>
<surname><![CDATA[Sanchez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Cairns]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Araus]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of thermography for high throughput phenotyping of tropical maize adaptation in water stress]]></article-title>
<source><![CDATA[Comp. Elect. Agric]]></source>
<year>2011</year>
<numero>79</numero>
<issue>79</issue>
<page-range>67-74</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosolem]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Mellis]]></surname>
<given-names><![CDATA[V. Van]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monitoring nitrogen nutrition in cotton]]></article-title>
<source><![CDATA[Rev. Bras. Ciênc. Solo]]></source>
<year>2010</year>
<volume>34</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1601-7</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sainz]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Echeverria]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relación entre las lecturas del medidor de clorofila (Minolta SPAD 502) en distintos estadios del ciclo del cultivo de maíz y el rendimiento en grano]]></article-title>
<source><![CDATA[Rev. Fac. Nac. Agron]]></source>
<year>1998</year>
<volume>103</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>37-44</page-range><publisher-loc><![CDATA[Medellín ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salisbury]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ross]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fisiología vegetal]]></source>
<year>1992</year>
<publisher-loc><![CDATA[México DF ]]></publisher-loc>
<publisher-name><![CDATA[Editorial Iberoamérica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Senger]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Peyrat]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Martin]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Montes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genetic variation in leaf chlorophyll content of Jatropha curcas]]></article-title>
<source><![CDATA[L. Ind. Crops Prod]]></source>
<year>2014</year>
<numero>58</numero>
<issue>58</issue>
<page-range>204-11</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Steele]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gitelson]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rundquist]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparaison of two techniques for nondestructive measurement of chlorophyll content in grapevine leaves]]></article-title>
<source><![CDATA[Agron. J.]]></source>
<year>2007</year>
<volume>100</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>779-82</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walteros]]></surname>
<given-names><![CDATA[I.Y]]></given-names>
</name>
<name>
<surname><![CDATA[Molano]]></surname>
<given-names><![CDATA[D.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Almanza-Merchán]]></surname>
<given-names><![CDATA[P.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Camacho]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Balaguera-López]]></surname>
<given-names><![CDATA[H.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la poda sobre la producción y calidad de frutos de Vitis vinifera L. var. Cabernet Sauvignon en Sutamarchán (Boyacá, Colombia).]]></article-title>
<source><![CDATA[Rev. Colomb. Cienc. Hortic]]></source>
<year>2012</year>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>19-30</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H.-F]]></given-names>
</name>
<name>
<surname><![CDATA[Huo]]></surname>
<given-names><![CDATA[Z.-G.]]></given-names>
</name>
<name>
<surname><![CDATA[Liao]]></surname>
<given-names><![CDATA[Q.-H.]]></given-names>
</name>
<name>
<surname><![CDATA[Feng]]></surname>
<given-names><![CDATA[H.-K.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimating leaf SPAD values of freeze-damaged winter wheat using continuous wavelet analysis]]></article-title>
<source><![CDATA[Plant Physiol. Biochem]]></source>
<year>2016</year>
<numero>98</numero>
<issue>98</issue>
<page-range>39-45</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zulini]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Rubinigg]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zorer]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bertamini]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of drought stress on chlorophyll fluorescente and photosynthetic pigment in grapevine leaves (Vitis vinifera cv. "White Riesling").]]></article-title>
<source><![CDATA[Acta Hortic]]></source>
<year>2007</year>
<numero>754</numero>
<issue>754</issue>
<page-range>289-94</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
