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  <titleInfo>
    <title>Vegetative propagation of Richeria grandis Vahl. by mini-cutting</title>
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  <name type="personal">
    <namePart>Moura, Cristiane Coelho</namePart>
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  <name type="personal">
    <namePart>Costa, Thaís Ribeiro</namePart>
    <role>
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  <name type="personal">
    <namePart>Moura, Luciana Coelho</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Carvalho, Letícia Renata</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Titon, Miranda</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Pereira, Israel Marinho</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Machado, Evandro Luiz Mendonça</namePart>
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  <abstract>


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 ± 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</abstract>
  <abstract>


RESUMO:    Devido ao desmatamento em Matas de Galeria, a lei ambiental vigente exige a restauração destas áreas. Apenas o uso da propagação seminal para espécies nativas deste ambiente tem limitado a produção de mudas, visto que sementes de algumas espécies muitas vezes possuem algum fator limitante. Richeria grandis Vahl. além de ser uma espécie característica deste ambiente, apresenta alto valor de importância fitossociológica, no entanto, suas sementes são recalcitrantes. Diante disto, objetivou-se avaliar o enraizamento de miniestacas de R. grandis Vahl. sob influência de concentrações de ácido indolbutírico (AIB). As miniestacas apicais foram preparadas com comprimento de 8 ± 2 cm e dois pares de folhas reduzidas em 50% a área foliar. Para o enraizamento, foi utilizado como substrato, a mistura de 70% de vermiculita e 30% de casca de arroz carbonizada com adição de fertilizante. Como tratamentos, foram testadas quatro concentrações de AIB: 0; 2.000, 4.000 e 6.000 mg L-1, via líquida, durante 10 segundos. O processo de enraizamento das miniestacas foi conduzido em casa de vegetação, por um período  de  90  dias.  De  acordo  com  os  resultados,  esta  técnica  é  viável,  uma  vez  que  houve  100%  de  sobrevivência  e  alta  porcentagem de enraizamento, sendo o tratamento controle com o menor valor (85%). Observou-se a presença de calos em miniestacas não enraizadas e, com o uso de AIB, houve tendência de aumento do número médio de raízes, porcentagem de brotação e média de brotos por tratamento. 



Palavras-chave:      Matas de Galeria; ácido indolbutírico; recalcitrante; enraizamento; produção de mudas</abstract>
  <note>

Publicação online; 34 ref.; 7 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>MATA CILIAR</topic>
  </subject>
  <subject>
    <topic>ESPÉCIE NATIVA</topic>
  </subject>
  <subject>
    <topic>MUDA</topic>
  </subject>
  <subject>
    <topic>PRODUÇÃO</topic>
  </subject>
  <subject>
    <topic>ENRAIZAMENTO</topic>
  </subject>
  <subject>
    <topic>ÁCIDO INDOLBUTÍRICO</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Revista Brasileira de Ciências Agrárias (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Recife-PE Universidade Federal Rural de Pernambuco 2006</publisher>
    </originInfo>
    <identifier>2026-1925</identifier>
    <identifier type="issn">1981-1160</identifier>
    <identifier type="local">BR2026000571</identifier>
    <part>
      <text>v. 15(4) p. 1-8; (2020)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i4a7930/24</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i4a7930/24</url>
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    <recordCreationDate encoding="marc">260510</recordCreationDate>
    <recordChangeDate encoding="iso8601">20260510124226.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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