<?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>S2007-09342024000200006</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v15i2.3221</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Azúcares resistentes a bajas temperaturas en portainjertos de aguacate]]></article-title>
<article-title xml:lang="en"><![CDATA[Low-temperature-resistant sugars in avocado rootstocks]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bernal-Valenzo]]></surname>
<given-names><![CDATA[Bernardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calderón-Zavala]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Jiménez]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padilla-Chacon]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Campus Monteillo ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<volume>15</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342024000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342024000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342024000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Debido a la demanda de fruta, en México, las huertas de aguacate (Persea americana Mill.) variedad &#8216;Hass&#8217; de clima subtropical, se establecen erróneamente en zonas frías, afectando su producción; una alternativa es usar portainjertos de la raza mexicana tolerantes al frio, tolerancia relacionada con el incremento de azúcares, en áreas de demanda, que comparte a través del injerto con la variedad &#8216;Hass&#8217;, por lo que, en 2021 se evaluaron en el Colegio de Posgraduados los segregantes de los &#8216;portainjertos&#8217; duke 7, tepetl, aceitoso y colecta 1, analizando contenido de glucosa, fructosa, sacarosa y almidón en brotes vegetativos, a los 1, 7 y 14 días de tratamiento, en la cámara 1 (tratamiento) con luminosidad de 380 µmol m-2 s-1 y temperaturas con luz de 15.61 °C y oscuridad de 4.4 °C y la cámara 2 (testigo) con luminosidad de 367 µmol m-2 s-1 y temperaturas con luz de 23.2 °C y oscuridad de 19.29 °C, considerando el factor frío y la baja luminosidad, se observó que la clorofila en las hojas, presenta un crecimiento sin deficiencia fotosintética en las plantas de ambas cámaras, el contenido de glucosa de la variedad &#8216;Hass&#8217; varía de acuerdo al contenido de glucosa en el portainjerto, el contenido de fructosa, aumenta en los materiales injertados y no injertados, actuando como un osmoprotector, el contenido de sacarosa aumenta en el material aceitoso injertado y el contenido de almidón, no es afectado, resultando, duke 7 y tepetl los materiales con mayor concentración de glucosa y fructosa, en condiciones de frío.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In Mexico, due to the demand for fruit, orchards of avocado (Persea americana Mill.) variety &#8216;Hass&#8217; of subtropical climate are erroneously established in cold areas, affecting their production; an alternative is to use cold-tolerant rootstocks of the Mexican race, tolerance related to the increase of sugars in areas of demand, which it shares through grafting with the &#8216;Hass&#8217; variety; therefore, in 2021, the segregants of the &#8216;rootstocks&#8217; duke 7, tepetl, aceitoso, and colecta 1 were evaluated at the College of Postgraduates; analyzing glucose, fructose, sucrose and starch contents in vegetative shoots at 1, 7, and 14 days of treatment; in chamber 1 (treatment) with luminosity of 380 &#956;mol m-2 s-1 and temperatures with light of 15.61 °C, and darkness of 4.40 °C; and chamber 2 (control) with luminosity of 367 &#956;mol m-2 s-1 and temperatures with light of 23.2 °C, and darkness of 19.29 °C, considering the factor of cold and low luminosity, it was observed that, chlorophyll in the leaves shows growth without photosynthetic deficiency in plants in both chambers; the glucose content of the &#8216;Hass&#8217; variety varies according to the glucose content in the rootstock; the fructose content increases in grafted and non-grafted materials, acting as an osmoprotectant, the sucrose content increases in the grafted aceitoso material and the starch content is not affected; as a result, duke 7 and tepetl were the materials with the highest concentration of glucose and fructose under cold conditions.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fructosa]]></kwd>
<kwd lng="es"><![CDATA[glucosa]]></kwd>
<kwd lng="es"><![CDATA[&#8216;Hass&#8217;]]></kwd>
<kwd lng="es"><![CDATA[segregante]]></kwd>
<kwd lng="es"><![CDATA[tolerantes al frío]]></kwd>
<kwd lng="en"><![CDATA[cold tolerant]]></kwd>
<kwd lng="en"><![CDATA[fructose]]></kwd>
<kwd lng="en"><![CDATA[glucose]]></kwd>
<kwd lng="en"><![CDATA[&#8216;Hass&#8217;]]></kwd>
<kwd lng="en"><![CDATA[segregating]]></kwd>
</kwd-group>
</article-meta>
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