<?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>0253-5785</journal-id>
<journal-title><![CDATA[Centro Agrícola]]></journal-title>
<abbrev-journal-title><![CDATA[Ctro. Agr.]]></abbrev-journal-title>
<issn>0253-5785</issn>
<publisher>
<publisher-name><![CDATA[Editorial Feijóo, Universidad Central de Las Villas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0253-57852019000400021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Respuesta de plántulas de cultivares de tomate a la aplicación de quitosano]]></article-title>
<article-title xml:lang="en"><![CDATA[Response of tomato cultivar plants to the application of chitosan]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Pérez]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enríquez-Acosta]]></surname>
<given-names><![CDATA[Emmanuel Alexander]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Arrebato]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Pedroso]]></surname>
<given-names><![CDATA[Aida Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivero-Herrada]]></surname>
<given-names><![CDATA[Marisol]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Técnica Estatal de Quevedo  ]]></institution>
<addr-line><![CDATA[Quevedo Los Ríos]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Técnica de Cotopaxi Extensión La Maná ]]></institution>
<addr-line><![CDATA[La Maná ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Ciencias Agrícolas (INCA) UCTB Los Palacios ]]></institution>
<addr-line><![CDATA[Los Palacios Pinar del Río]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>46</volume>
<numero>4</numero>
<fpage>21</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0253-57852019000400021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0253-57852019000400021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0253-57852019000400021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Con el objetivo de evaluar la influencia del quitosano sobre plántulas de cultivares de tomate se desarrolló un experimento en condiciones de casa malla sombra, con control de temperatura, humedad relativa. Se utilizaron ocho tratamientos que resultaron de la combinación de los cultivares de tomate Pomodoro y Floradade con tres dosis de quitosano (1, 2 y 3 g L-1) y un control con agua destilada. Los tratamientos fueron distribuidos en un diseño completamente aleatorizado con tres repeticiones. A los 21 días después de la germinación se realizaron evaluaciones a variables relacionadas con el crecimiento y desarrollo del cultivo. Los datos obtenidos se sometieron a un análisis multivariado de componentes principales con representación Biplot, posteriormente se realizó un análisis de varianza doble y una comparación múltiple de medias. Se formaron dos nuevas variables (C1, C2) que lograron explicar el 91,24 % de la varianza total del experimento, la C1 presentó la mayor contribución con el 85,66 %, que se caracterizó por la masa fresca y seca del tallo, la masa fresca y seca de las hojas, la masa fresca de la raíz, el diámetro y longitud del tallo, así como la concentración de N, P y K, en la parte foliar de la planta. Todas las dosis de quitosano provocaron un mayor efecto estimulante que el control en la mayoría de las variables evaluadas para ambos cultivares siendo 1 y 2 g L-1 las mejores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT With the objective of evaluating the influence of Chitosan on seedlings of tomato cultivars, an experiment was developed in shaded mesh house conditions, with control of temperature, relative humidity. Eight treatments were used which resulted from the combination of Pomodoro and Floradade tomato cultivars with three doses of Chitosan 1, 2 and 3 g L-1 and a control without application. The treatments were distributed in a completely randomized design with three repetitions. 21 days after germination, evaluations were made to variables related to the growth and development of the crop. The data were subjected to a multivariate analysis of principal components with Biplot representation and a double variance analysis and multiple means comparison were subsequently performed. When applying the principal component analysis two new variables were formed (C1, C2) that managed to explain 91.24 % of the total variance of the experiment. C1 presented the highest contribution with 85.66 %, which was characterized by the fresh and dry mass of the stem, the fresh and dry mass of the leaves, the fresh mass of the root, the diameter and length of the stem, as well as the concentration of N, P and K, in the foliar part of the plant. The analysis of variance showed that the doses that caused a greater positive effect on the cultivars in most of the variables evaluated were 1 and 2 g L-1.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bioproducto]]></kwd>
<kwd lng="es"><![CDATA[análisis de componentes principales]]></kwd>
<kwd lng="es"><![CDATA[bioestimulante]]></kwd>
<kwd lng="es"><![CDATA[Solanum licopersicum]]></kwd>
<kwd lng="es"><![CDATA[hortaliza]]></kwd>
<kwd lng="en"><![CDATA[bioproduct]]></kwd>
<kwd lng="en"><![CDATA[principal component analysis]]></kwd>
<kwd lng="en"><![CDATA[biostimulant]]></kwd>
<kwd lng="en"><![CDATA[Solanum licopersicum]]></kwd>
<kwd lng="en"><![CDATA[vegetable]]></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[BARRETO]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[ANDRADE]]></surname>
<given-names><![CDATA[S. C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[MACIEL]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Chitosan Coating Containing Essential Oil from Origanum vulgare L. to Control Postharvest Mold Infections and Keep the Quality of Cherry Tomato Fruit]]></article-title>
<source><![CDATA[Frontiers in Microbiology]]></source>
<year>2016</year>
<numero>7</numero>
<issue>7</issue>
<page-range>1724</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BERGER]]></surname>
<given-names><![CDATA[L. R. R.]]></given-names>
</name>
<name>
<surname><![CDATA[STAMFORD]]></surname>
<given-names><![CDATA[T. C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[STAMFORD-ARNAUD]]></surname>
<given-names><![CDATA[T. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of Corn Steep Liquor (CSL) and Cassava Wastewater (CW) on Chitin and Chitosan Production by Cunninghamella elegans and Their Physicochemical Characteristics and Cytotoxicity]]></article-title>
<source><![CDATA[Molecules]]></source>
<year>2014</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>2771-92</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BETANCOURT]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[PIERRE]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extracción de macronutrientes por el cultivo del tomate (Solanum lycopersicum Mill. var Alba) en casa de cultivos en Quibor, estado Lara]]></article-title>
<source><![CDATA[Bioagro]]></source>
<year>2013</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>181-8</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CHARITIDIS]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[DRAGATOGIANNIS]]></surname>
<given-names><![CDATA[D. A.]]></given-names>
</name>
<name>
<surname><![CDATA[MILIONI]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Synthesis, Nanomechanical Characterization and Biocompatibility of a Chitosan-Graft-Poly (&#949;-caprolactone) Copolymer for Soft Tissue Regeneration]]></article-title>
<source><![CDATA[Materials (Basel, Switzerland)]]></source>
<year>2019</year>
<volume>12</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CHUN]]></surname>
<given-names><![CDATA[S.C.]]></given-names>
</name>
<name>
<surname><![CDATA[CHANDRASEKARAN]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chitosan and chitosan nanoparticles induced expression of pathogenesis-related proteins genes enhances biotic stress tolerance in tomato]]></article-title>
<source><![CDATA[International Journal of Biological Macromolecules]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DIVYA]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[SMITHA]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[JISHA]]></surname>
<given-names><![CDATA[M. S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antifungal, antioxidant and cytotoxic activities of chitosan nanoparticles and its use as an edible coating on vegetables]]></article-title>
<source><![CDATA[International Journal of Biological Macromolecules]]></source>
<year>2018</year>
<numero>114</numero>
<issue>114</issue>
<page-range>572-7</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GINER]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[VEGARA]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[FUNES]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antimicrobial activity of food-compatible plant extracts and chitosan against naturally occurring micro-organisms in tomato juice]]></article-title>
<source><![CDATA[Journal of the Science of Food and Agriculture]]></source>
<year>2012</year>
<volume>92</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1917-23</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[JAVAID]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[YOUNAS]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[ZAFAR]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mathematical modeling and experimental study of mechanical properties of chitosan based polyurethanes: Effect of diisocyanate nature by mixture design approach]]></article-title>
<source><![CDATA[International Journal of Biological Macromolecules]]></source>
<year>2018</year>
<numero>124</numero>
<issue>124</issue>
<page-range>321-30</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[KERCH]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chitosan films and coatings prevent losses of fresh fruit nutritional quality: A review]]></article-title>
<source><![CDATA[Trends Food Sci. Technol.]]></source>
<year>2015</year>
<numero>46</numero>
<issue>46</issue>
<page-range>159-66</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MALERBA]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[CERANA]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chitosan Effects on Plant]]></article-title>
<source><![CDATA[Systems. Int. J. Mol. Sci]]></source>
<year>2016</year>
<numero>996</numero>
<issue>996</issue>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<collab>NTE</collab>
<source><![CDATA[INEN 1909, Frutas frescas. Tomate de árbol]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PAUL]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[SARKAR]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[SETHI]]></surname>
<given-names><![CDATA[L. N.]]></given-names>
</name>
<name>
<surname><![CDATA[GHOSH]]></surname>
<given-names><![CDATA[S. K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Development of chitosan based optimized edible coating for tomato (Solanum lycopersicum) and its characterization]]></article-title>
<source><![CDATA[Journal of Food Science and Technology]]></source>
<year>2018</year>
<volume>55</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>2446-56</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[REYES-PÉREZ]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[ENRÍQUEZ-ACOSTA]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[MURILLO-AMADOR]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physiological, phenological and productive responses of tomato (Solanum licopersicum L.) plants treated with Quitosano]]></article-title>
<source><![CDATA[Cien. Inv. Agr]]></source>
<year>2018</year>
<volume>45</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>26-31</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ-PEDROSO]]></surname>
<given-names><![CDATA[A. T.]]></given-names>
</name>
<name>
<surname><![CDATA[RAMÍREZ-ARREBATO]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[FALCÓN-RODRÍGUEZ]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto del Quitosano® en el rendimiento y sus componentes del cultivar de arroz (Oryza sativa L.) var. INCA LP 5]]></article-title>
<source><![CDATA[Cultivos Tropicales]]></source>
<year>2017</year>
<volume>38</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>156-9</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ-REYES]]></surname>
<given-names><![CDATA[R.C.]]></given-names>
</name>
<name>
<surname><![CDATA[FIGUEREDO]]></surname>
<given-names><![CDATA[J.V.]]></given-names>
</name>
<name>
<surname><![CDATA[GONZÁLEZ]]></surname>
<given-names><![CDATA[P.O.S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influencia de la quitosana en tomate (Solanum lycopersicum, Mill) var. &#8220;Amalia&#8221;]]></article-title>
<source><![CDATA[Centro Agrícola]]></source>
<year>2013</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>79-84</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<collab>STATSOFT Inc</collab>
<source><![CDATA[Statistica. System reference]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Inc., Tulsa, Oklahoma, EUA ]]></publisher-loc>
<publisher-name><![CDATA[StatSoft]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[TERRY-ALFONSO]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[FALCÓN-RODRÍGUEZ]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[RUIZ-PADRÓN]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respuesta agronómica del cultivo de tomate al bioproducto Quitosano®]]></article-title>
<source><![CDATA[Cultivos Tropicales]]></source>
<year>2017</year>
<volume>38</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>147-54</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[VARELA]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Los métodos BIPLOT como herramienta de análisis de interacción de orden superior en un modelo lineal/bilineal]]></source>
<year>2002</year>
<page-range>15-155</page-range><publisher-loc><![CDATA[Salamanca, España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Salamanca]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
