<?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>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802017000400489</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Productivity of Zea mays L., in drought stress, inoculated with Bradyrhizobium sp. and Trichoderma harzianum]]></article-title>
<article-title xml:lang="es"><![CDATA[Productividad de Zea mays L. en estrés de sequía, inoculado con Bradyrhizobium sp. y Trichoderma harzianum]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bécquer]]></surname>
<given-names><![CDATA[C. J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nápoles]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
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<contrib contrib-type="author">
<name>
<surname><![CDATA[Cancio]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
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<contrib contrib-type="author">
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[Adelaida]]></given-names>
</name>
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<contrib contrib-type="author">
<name>
<surname><![CDATA[Medinilla]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muir]]></surname>
<given-names><![CDATA[Ivón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Investigaciones de Pastos y Forrajes Estación Experimental Sancti Spíritus ]]></institution>
<addr-line><![CDATA[ Sancti Spíritus]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad &#8220;José Martí Pérez&#8221;  ]]></institution>
<addr-line><![CDATA[ Sancti Spíritus]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Meteorológico Provincial de Sancti Spíritus  ]]></institution>
<addr-line><![CDATA[ Sancti Spíritus]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>51</volume>
<numero>4</numero>
<fpage>489</fpage>
<lpage>500</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802017000400489&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802017000400489&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802017000400489&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A field experiment was developed under agricultural drought stress conditions to evaluate agroproductive variables of Zea mays L., to which inocula of Bradyrhizobium sp. and Trichoderma harzianum were applied. The inocula preparation and the inoculation of the plants were carried out according to recognized rules. A randomized block experimental design with seven treatments was used: 1) Bradyrhizobium sp. (Ho13), when seed germinates; 2) Trichoderma, when seed germinates (Trichoderma); 3) Bradyrhizobium sp. + Trichoderma, when seed germinates (Ho13 + Trichoderma); 4) Bradyrhizobium sp., when seed germinates+ Trichoderma at 15 d of sowing (Ho13 + Trich.15 d); 5) Trichoderma, when seed germinates + Bradyrhizobium sp. at 15 d of sowing (Trich. + Ho13.15d); 6) absolute control and 7) control fertilized with 150 kg N / ha and three replications. ANOVA analysis was performed. The differences between means were determined by LSD of Fisher. The values with digit count were transformed by &#8730;x. and the percentage data by 2arcosen&#8730;P. The dry weight of the aerial part, the efficiency index of the inoculation on the basis of the DWAP, stem length, the dry weight of corncob, the grain yield, the efficiency index of the inoculation on the basis of grain yield and the weight of 1000 grains (P1000G) were evaluated. The state of the agricultural drought was determined. In the weight of the corncob, the treatments inoculated when germinating the seed with Trichoderma (120.30 g) and Ho13 + Trichoderma (118.25 g), as well as with Trichoderma when germinating the seed + Ho13 at 15 d of sowing (119.90 g) (Trich. + Ho1315d) were superior to the rest of the treatments. The grain yield in the treatment inoculated with Ho13 (1.49 t/ha) and in the treatment inoculated with Trich. + Ho13.15d. (1.58 t/ha) exceeded the rest, except for the fertilized control. It is concluded that, in general, the productivity of the crop was increased when inoculated with the simple application of Bradyrhizobium sp. (Ho13) as combined with Trichoderma harzianum. The variables with the best response to the treatments inoculated were: dry weight of the corncob, stem length and grain yield. It was also observed that the fertilized treatment was inferior to the treatments inoculated in dry weight of the corncob and weight of 1000 G. The treatments with higher results in the studied variables were Ho13 and Trichoderma + Ho13.15 d., recommended to apply in agricultural practice.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se desarrolló un experimento de campo en condiciones de estrés de sequía agrícola para evaluar variables agroproductivas de Zea mays L., al cual se le aplicaron inóculos de Bradyrhizobium sp. y Trichoderma harzianum. La preparación de los inóculos y la inoculación de las plantas se realizaron según normas reconocidas. Se empleó un diseño experimental de bloques al azar con siete tratamientos: 1) Bradyrhizobium sp. (Ho13), al germinar la semilla; 2) Trichoderma, al germinar la semilla (Trichoderma); 3) Bradyrhizobium sp. + Trichoderma, al germinar la semilla (Ho13 + Trichoderma); 4) Bradyrhizobium sp, al germinar la semilla + Trichoderma a los15 d de la siembra (Ho13 + Trich.15 d); 5) Trichoderma, al germinar la semilla + Bradyrhizobium sp. a los15 d de la siembra (Trich.+Ho13.15d); 6) control absoluto y 7) testigo fertilizado con 150 kg N/ha y tres réplicas. Se realizó análisis de ANOVA. Las diferencias entre medias se determinaron por LSD de Fisher. Los valores con conteo de dígitos se transformaron por &#8730;x. y los datos porcentuales por 2arcosen&#8730;P. Se evaluó el peso seco de la parte aérea, el índice de eficiencia de la inoculación sobre la base del PSPA, la longitud del tallo, el peso seco de la mazorca, el rendimiento de grano, el índice de eficiencia de la inoculación sobre la base del rendimiento del grano y el peso de 1000 granos (P1000G). Se determinó el estado de la sequía agrícola. En el peso seco de la mazorca, los tratamientos inoculados al germinar la semilla con Trichoderma (120.30 g) y Ho13+Trichoderma (118.25 g), así como con Trichoderma al germinar la semilla+Ho13 a los 15 d de siembra (119.90 g) (Trich.+Ho1315d) fueron superiores al resto de los tratamientos. El rendimiento del grano en el tratamiento inoculado con Ho13 (1.49 t/ha) y en el tratamiento inoculado con Trich.+Ho13.15d. (1.58 t/ha) superaron al resto, excepto al testigo fertilizado. Se concluye que, en general, se incrementó la productividad del cultivo al ser inoculado con la aplicación simple de Bradyrhizobium sp. (Ho13) como combinada con Trichoderma harzianum. Las variables con mejor respuesta a los tratamientos inoculados fueron: peso seco de la mazorca, longitud del talo y rendimiento del grano. También se observó que el tratamiento fertilizado fue inferior a los tratamientos inoculados en peso seco de la masorca y peso de 1000 G. Los tratamientos con resultados superiores en las variables estudiadas fueron Ho13 y Trichoderma + Ho13.15 d., recomendados para aplicar en la práctica agrícola.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Bradyrhizobium]]></kwd>
<kwd lng="en"><![CDATA[Trichoderma]]></kwd>
<kwd lng="en"><![CDATA[agricultural drought]]></kwd>
<kwd lng="en"><![CDATA[corn]]></kwd>
<kwd lng="es"><![CDATA[Bradyrhizobium]]></kwd>
<kwd lng="es"><![CDATA[Trichoderma]]></kwd>
<kwd lng="es"><![CDATA[sequía agrícola]]></kwd>
<kwd lng="es"><![CDATA[maíz]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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