<?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>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802023000100077</article-id>
<article-id pub-id-type="doi">10.35196/rfm.2023.1.77</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El fotoperiodo como modulador del crecimiento en Dahlia campanulata Saar, P. D. Sørensen &amp; Hjert]]></article-title>
<article-title xml:lang="en"><![CDATA[Photoperiod as a growth modulator in Dahlia campanulata Saar, P. D. Sørensen &amp; Hjert]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Ruiz]]></surname>
<given-names><![CDATA[Eddi F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Solís]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía-Muñoz]]></surname>
<given-names><![CDATA[José M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa-Montes]]></surname>
<given-names><![CDATA[Eliseo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez-Hernández]]></surname>
<given-names><![CDATA[Ma. de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Fitotecnia ]]></institution>
<addr-line><![CDATA[Chapingo Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Zootecnía ]]></institution>
<addr-line><![CDATA[Chapingo Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>46</volume>
<numero>1</numero>
<fpage>77</fpage>
<lpage>83</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802023000100077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802023000100077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802023000100077&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La dalia es una especie nativa de México, es considerada la flor nacional y cuenta con diversos usos, como ornamental y medicinal; además, por su alto contenido de inulina, puede ser usada como alimento para humanos. El objetivo del presente estudio fue evaluar el efecto del fotoperiodo sobre el crecimiento de la parte vegetativa y tuberización de Dahlia campanulata. Para tener certeza sobre su procedencia, las plantas de dalia se obtuvieron por semilla; éstas crecieron durante 60 días bajo los siguientes tratamientos: 1) fotoperiodo de día corto (FDC, 10 horas de luz:14 horas de oscuridad), 2) fotoperiodo de día largo (FDL, 14 horas de luz:10 horas de oscuridad) y 3) testigo (plantas a cielo abierto, 13 horas de luz natural en promedio). Los tratamientos (fotoperiodos) se evaluaron cada 10 días, a partir de los 10 días después del trasplante (ddt) bajo un diseño completamente al azar con cinco repeticiones y una planta como unidad experimental. Se aplicó análisis de varianza y las medias de las variables se compararon por medio de la prueba de Tukey (P &#8804; 0.05). Las variables de respuesta se obtuvieron tanto de la parte aérea como de la raíz; a los 60 ddt, la longitud del primer nudo al ápice (13.2 cm), número de hojas (41.2), número de brotes axilares (12.0) y peso seco de hojas (2.1 g) fueron mayores con FDL que con FDC; por el contrario, FDC produjo mayor diámetro de raíz tuberosa principal y lateral (1.2 y 1.7 cm, respectivamente) que FDL. En general, las variables de las plantas con ajuste de luz fueron iguales o mejores que las del tratamiento testigo (luz natural). En conclusión, el fotoperiodo afecta el crecimiento de Dahlia campanulata. El fotoperiodo de día largo propicia mejor crecimiento de la parte vegetativa, mientras que el fotoperiodo de día corto favorece el crecimiento de las raíces tuberosas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY Dahlia is a species native to Mexico, it is considered the national flower and has several uses such as ornamental, medicinal and nutritional. In addition, due to its high content of inulin, it can be used as food for humans. The objective of this study was to evaluate the effect of photoperiod on the growth of the aerial part and tuberization of Dahlia campanulata. To be certain of their origin, dahlia plants were obtained by seed; these grew for 60 days under the following treatments: 1) short day photoperiod (SDP, 10 hours light:14 hours dark), 2) long day photoperiod (LDP, 14 hours light:10 hours dark) and 3) control (outdoor plants, 13 hours natural light on average). Treatments (photoperiods) were evaluated every 10 days, starting 10 days after transplanting (dat) under a completely randomized design with five replications and a plant as the experimental unit. Analysis of variance was applied and means were compared by the Tukey test (P &#8804; 0.05). Response variables were obtained from both the aerial part and the root; at 60 dat, the length from the first node to the apex (13.2 cm), number of leaves (41.2), number of axillary sprouts (12.0) and leaf dry weight (2.1 g) were greater with LDP than with SDP; conversely, SDP produced larger diameter of main and lateral tuberous root (1.2 and 1.7 cm, respectively) than LDP. In general, the variables of plants with light adjustment were equal to or better than those of the control treatment (natural light). In conclusion, photoperiod impacts the growth of Dahlia campanulata. The long-day photoperiod promotes better growth of the vegetative part, while the short-day photoperiod favors the growth of tuberous roots.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[luz]]></kwd>
<kwd lng="es"><![CDATA[oscuridad]]></kwd>
<kwd lng="es"><![CDATA[raíces tuberosas]]></kwd>
<kwd lng="es"><![CDATA[tuberización]]></kwd>
<kwd lng="en"><![CDATA[dark]]></kwd>
<kwd lng="en"><![CDATA[light]]></kwd>
<kwd lng="en"><![CDATA[tuberization]]></kwd>
<kwd lng="en"><![CDATA[tuberous roots]]></kwd>
</kwd-group>
</article-meta>
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<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zimmerman]]></surname>
<given-names><![CDATA[P. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hitchcock]]></surname>
<given-names><![CDATA[A. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root formation and flowering of dahlia cuttings when subjected to different day lengths]]></article-title>
<source><![CDATA[The Botanical Gazette]]></source>
<year>1929</year>
<volume>87</volume>
<page-range>1-13</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
