<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342017000701667</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efectos de dosis de cianamida de hidrógeno en brotacio&#769;n y producción de racimos en vid de mesa]]></article-title>
<article-title xml:lang="en"><![CDATA[Effects of doses of hydrogen cyanamide on sprouting and production of clusters in table grape]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Díaz]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Blanco]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIFAP Campo Experimental de la Costa de Hermosillo ]]></institution>
<addr-line><![CDATA[Hermosillo Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>7</numero>
<fpage>1667</fpage>
<lpage>1675</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342017000701667&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342017000701667&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342017000701667&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En regiones cálidas, como las áreas del desierto de Sonora, el cultivo de la vid enfrenta el problema de insuficiencia en acumulación de unidades frio, condición que provoca que las variedades de vid broten tardíamente y en forma irregular. Para solventar este problema los productores hacen uso de promotores de brotacio&#769;n como la cianamida de hidrógeno, la cual es aplicada inmediatamente después de la poda, a finales de diciembre o principios de enero. Con el propósito de determinar el efecto de dosis crecientes de cianamida de hidrógeno en la brotacio&#769;n de las yemas y en la producción de racimos de la vid se realizaron varias pruebas experimentales durante los ciclos de producción del 2009, 2010, 2011 y 2013 en viñedos comerciales con el cultivar Perlette, irrigado con sistema presurizado tipo goteo. Los tratamientos evaluados fueron las concentraciones de cianamida de hidrogeno: 0, 1.25, 2.5 y 3.5% (p/v). Para medir el efecto de los tratamientos se registró la brotacio&#769;n final y cantidad de racimos por planta. Los datos recabados de las variables consideradas fueron analizados estadísticamente llevando a cabo el Anova y separación de medias mediante la prueba de Duncan al 0.05. Los resultados obtenidos indican que la cianamida de hidrógeno en bajas concentraciones estimuló la brotacio&#769;n de las yemas en las plantas de vid en años con acumulación de horas frío contrastante, y que en años de baja acumulación de las horas frio, las altas dosis redujeron en forma significativa (p&#8805; 0.05) la brotacio&#769;n de las yemas. Por otro lado, el número de racimos por planta se redujo con altas dosis de cianamida (p&#8805; 0.05) si la acumulación de frio fue baja; asimismo, se observó que esta variable estuvo estrechamente relacionado con al nivel de brotacio&#769;n de las plantas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In warm regions, such as the Sonora Desert areas, grapevine cultivation faces the problem of insufficient cold accumulation, a condition that causes vine varieties to grow late and irregularly. To solve this problem growers make use of budding promoters such as hydrogen cyanamide, which is applied immediately after pruning, in late december or early january. In order to determine the effect of increasing doses of hydrogen cyanamide on shoot buds and grape clusters production, several experimental tests were carried out during the production cycles of 2009, 2010, 2011 and 2013 in vineyards commercial with the cultivar Perlette, irrigated with system pressurized drip type. The treatments evaluated were hydrogen cyanamide concentrations: 0, 1.25, 2.5 and 3.5% (p/v). To measure the effect of the treatments, the final bud and number of clusters per plant were recorded. Data collected from the variables considered were statistically analyzed by performing the Anova and separating averages using the Duncan test at 0.05. The results obtained indicate that hydrogen cyanamide at low concentrations stimulated the sprouting of the buds in the plants of vine in years with accumulation of contrasting cold hours, and that in years of low accumulation of the cold hours, the high doses reduced in form significant (p&#8805; 0.05) sprouting of the buds. On the other hand, the number of clusters per plant was reduced with high doses of cyanamide (p&#8805; 0.05) if the accumulation of cold was low; also, it was observed that this variable was closely related to the level of budding of the plants.]]></p></abstract>
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<kwd lng="es"><![CDATA[Vitis vinifera]]></kwd>
<kwd lng="es"><![CDATA[horas frío]]></kwd>
<kwd lng="es"><![CDATA[promotores de brotacio&#769;n]]></kwd>
<kwd lng="es"><![CDATA[variedades de vid]]></kwd>
<kwd lng="en"><![CDATA[Vitis vinifera]]></kwd>
<kwd lng="en"><![CDATA[budding promoters]]></kwd>
<kwd lng="en"><![CDATA[cold hours]]></kwd>
<kwd lng="en"><![CDATA[vine varieties]]></kwd>
</kwd-group>
</article-meta>
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