<?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>S2007-09342017000701647</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Incremento del tamaño y peso del bulbo de cebolla (Allium cepa L.) por translocación de nutrientes]]></article-title>
<article-title xml:lang="en"><![CDATA[Increased size and weight of onion bulb (Allium cepa L.) by nutrient translocation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Urquídez]]></surname>
<given-names><![CDATA[Guadalupe Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gastélum González]]></surname>
<given-names><![CDATA[Santos Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Valdés]]></surname>
<given-names><![CDATA[Tomás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayala Tafoya]]></surname>
<given-names><![CDATA[Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Madueño Martínez]]></surname>
<given-names><![CDATA[Jesús Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Orona]]></surname>
<given-names><![CDATA[Carlos Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Sinaloa Facultad de Agronomía ]]></institution>
<addr-line><![CDATA[Culiacán Sinaloa]]></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>1647</fpage>
<lpage>1652</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342017000701647&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342017000701647&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342017000701647&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La cebolla (Allium cepa L.) es la segunda hortaliza alimenticia más importante a nivel mundial después del tomate y genera numerosos empleos. Asimismo, el rendimiento promedio en Sinaloa es bajo con relación a otras partes de México y del Mundo. En esta investigación se buscó conocer el incremento del tamaño y peso del bulbo de cebolla blanca, desde el momento de doblado de la hoja hasta su cosecha. Se utilizó la variedad &#8220;Carta Blanca&#8221; (Nunhems) que es de días cortos. Se realizó un muestreo aleatorio simple en una superficie de tres hectáreas. Se realizaron tres mediciones, con un intervalo de una semana entre ellas. Las mediciones iniciaron cuando se dobló la hoja. Para realizar el análisis estadístico, se verificó la normalidad de los datos y se realizó la prueba de homogeneidad. Los datos se sometieron a análisis de varianza y comparación media de Tukey (p&lt; 0.05) con el paquete estadístico SAS. También se realizó un análisis de sensibilidad para estimar la viabilidad económica. Los resultados muestran que al inicio del doblado de la hoja, el diámetro medio del bulbo ecuatorial fue de 7.48 cm, después de una semana los bulbos fueron de 8.02 cm (diferencia de 0.53 cm). En la segunda semana la diferencia con respecto al inicio de la hoja plegada fue de 0.78 cm. Además, durante la tercera semana los bulbos de cebolla han parado el crecer, al mismo tiempo que las hojas pierden el color verde. Esto demuestra que la translocación continúa incluso después de haber alcanzado la madurez fisiológica de la planta que se manifiesta plegando la hoja. El análisis de sensibilidad indica que si las cebollas se vendieran a 4 pesos y cosecharan una semana después del doblado de la hoja, el beneficio extra sería de $17 903.78 con una cantidad de 100 mil plantas por hectárea y hasta $71 615.13 con 400 mil plantas. Además, dos semanas después del doblado, las ganancias serían de $26 363.18 y $105 452.70 respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The onion (Allium cepa L.) is the second most important food vegetable worldwide after the tomato and generates numerous jobs. Likewise, the average yield in Sinaloa is low relative to other parts of Mexico and the world. In this research we sought to know the increase of the size and weight of the white onion bulb, from the moment of folding of the leaf until its harvest. The variety &#8220;Carta Blanca&#8221; (Nunhems) was used that is of short days. A simple random sampling was performed on a surface of three hectares. Three measurements were taken, with an interval of one week between them. Measurements started when the blade was folded. To perform the statistical analysis, the normality of the data was verified and the homogeneity test was performed. The data were submitted to analysis of variance and mean Tukey comparison (p&lt; 0.05) with the SAS statistical package. A sensitivity analysis was also performed to estimate economic viability. The results show that at the beginning of leaf bending, the average diameter of the equatorial bulb was 7.48 cm, after one week the bulbs were 8.02 cm (difference of 0.53 cm). In the second week the difference with respect to the beginning of the folded sheet was 0.78 cm. In addition, during the third week the onion bulbs have stopped growing, at the same time the leaves lose their green color. This shows that the translocation continues even after having reached the physiological maturity of the plant which is manifested by folding the leaf. The sensitivity analysis indicates that if the onions were sold at 4 pesos and harvested one week after folding the leaf, the extra benefit would be $17 903.78 with an amount of 100 thousand plants per hectare and up to $71 615.13 with 400 thousand plants. In addition, two weeks after the doubling, the gains would be $26 363.18 and $105 452.70 respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bulbificación]]></kwd>
<kwd lng="es"><![CDATA[doblado de la hoja]]></kwd>
<kwd lng="es"><![CDATA[dormancia]]></kwd>
<kwd lng="en"><![CDATA[bulbification]]></kwd>
<kwd lng="en"><![CDATA[dormancy]]></kwd>
<kwd lng="en"><![CDATA[folded leaf]]></kwd>
</kwd-group>
</article-meta>
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