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    <subfield code="b">eng</subfield>
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    <subfield code="a">K10</subfield>
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    <subfield code="a">Moura, Cristiane Coelho </subfield>
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    <subfield code="a">Costa, Tha&#xED;s Ribeiro </subfield>
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    <subfield code="a">Moura, Luciana Coelho </subfield>
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    <subfield code="a">Carvalho, Let&#xED;cia Renata </subfield>
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    <subfield code="a">Titon, Miranda </subfield>
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    <subfield code="a">Pereira, Israel Marinho </subfield>
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    <subfield code="a">Machado, Evandro Luiz Mendon&#xE7;a </subfield>
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  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Vegetative propagation of Richeria grandis Vahl. by mini-cutting</subfield>
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Publica&#xE7;&#xE3;o online; 34 ref.; 7 illus.; Summaries (En, Pt)</subfield>
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ABSTRACT:    Due to deforestation in Gallery Forests, the current environmental law requires their restoration. Using only seminal propagation for native species of this environment has limited the production of seedlings as the seeds of some species often have  limiting  factors.  Richeria  grandis  Vahl.,  besides  being  a  characteristic  species  of  this  environment,  has  high  value  in  phytosociological importance; however, it has recalcitrant seeds. In view of this, the objective was to evaluate the rooting of R. grandis Vahl. mini-cuttings under the influence of indolebutyric acid (IBA) concentrations. Apical mini-cuttings were prepared with length of 8 &#xB1; 2 cm and two pairs of leaves with their leaf area reduced by 50%. For rooting, a mixture of 70% vermiculite and 30% carbonized rice husk with fertilizer was used as substrate. As treatments, four IBA concentrations were tested: 0; 2,000; 4,000; and 6,000 mg L-1, liquid in solution, for 10 seconds. The rooting of mini-cuttings was conducted in a greenhouse, for a period of 90 days. According to the results, this technique is feasible, since there was 100% survival and a high percentage of rooting, with the control treatment having the lowest value (85%). Calluses were found in non-rooted mini-cuttings and, using IBA, there was a tendency to increase the mean number of roots, sprouting percentage and mean sprouts per treatment.  



Key words:       Gallery Forests; indolebutyric acid; recalcitrant; rooting; seedling production</subfield>
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RESUMO:    Devido ao desmatamento em Matas de Galeria, a lei ambiental vigente exige a restaura&#xE7;&#xE3;o destas &#xE1;reas. Apenas o uso da propaga&#xE7;&#xE3;o seminal para esp&#xE9;cies nativas deste ambiente tem limitado a produ&#xE7;&#xE3;o de mudas, visto que sementes de algumas esp&#xE9;cies muitas vezes possuem algum fator limitante. Richeria grandis Vahl. al&#xE9;m de ser uma esp&#xE9;cie caracter&#xED;stica deste ambiente, apresenta alto valor de import&#xE2;ncia fitossociol&#xF3;gica, no entanto, suas sementes s&#xE3;o recalcitrantes. Diante disto, objetivou-se avaliar o enraizamento de miniestacas de R. grandis Vahl. sob influ&#xEA;ncia de concentra&#xE7;&#xF5;es de &#xE1;cido indolbut&#xED;rico (AIB). As miniestacas apicais foram preparadas com comprimento de 8 &#xB1; 2 cm e dois pares de folhas reduzidas em 50% a &#xE1;rea foliar. Para o enraizamento, foi utilizado como substrato, a mistura de 70% de vermiculita e 30% de casca de arroz carbonizada com adi&#xE7;&#xE3;o de fertilizante. Como tratamentos, foram testadas quatro concentra&#xE7;&#xF5;es de AIB: 0; 2.000, 4.000 e 6.000 mg L-1, via l&#xED;quida, durante 10 segundos. O processo de enraizamento das miniestacas foi conduzido em casa de vegeta&#xE7;&#xE3;o, por um per&#xED;odo  de  90  dias.  De  acordo  com  os  resultados,  esta  t&#xE9;cnica  &#xE9;  vi&#xE1;vel,  uma  vez  que  houve  100%  de  sobreviv&#xEA;ncia  e  alta  porcentagem de enraizamento, sendo o tratamento controle com o menor valor (85%). Observou-se a presen&#xE7;a de calos em miniestacas n&#xE3;o enraizadas e, com o uso de AIB, houve tend&#xEA;ncia de aumento do n&#xFA;mero m&#xE9;dio de ra&#xED;zes, porcentagem de brota&#xE7;&#xE3;o e m&#xE9;dia de brotos por tratamento. 



Palavras-chave:      Matas de Galeria; &#xE1;cido indolbut&#xED;rico; recalcitrante; enraizamento; produ&#xE7;&#xE3;o de mudas</subfield>
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    <subfield code="a">MATA CILIAR</subfield>
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    <subfield code="a">ESP&#xC9;CIE NATIVA</subfield>
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    <subfield code="a">MUDA</subfield>
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    <subfield code="a">PRODU&#xC7;&#xC3;O</subfield>
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    <subfield code="a">ENRAIZAMENTO</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">&#xC1;CIDO INDOLBUT&#xCD;RICO</subfield>
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    <subfield code="0">4656</subfield>
    <subfield code="9">361920</subfield>
    <subfield code="d">Recife-PE Universidade Federal Rural de Pernambuco 2006</subfield>
    <subfield code="o">2026-1925</subfield>
    <subfield code="t">Revista Brasileira de Ci&#xEA;ncias Agr&#xE1;rias (Brazil)</subfield>
    <subfield code="x">1981-1160</subfield>
    <subfield code="g">v. 15(4) p. 1-8; (2020)</subfield>
    <subfield code="w">BR2026000571</subfield>
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    <subfield code="u">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i4a7930/24</subfield>
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