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  <titleInfo>
    <title>Use of micropropagation in the vegetative rescue of adult trees of Cedrela odorata L</title>
  </titleInfo>
  <name type="personal">
    <namePart>Costa, Murilo Dalla</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Santos Júnior, Cezário Ferreira dos</namePart>
    <role>
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  <name type="personal">
    <namePart>Rech, Tássio Dresch</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Boff, Pedro</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Boff, Mari Inês Carissimi</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <genre authority="marc">abstract or summary</genre>
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ABSTRACT:       The  objective  of  this  work  was  the  vegetative  rescue  of  Cedrela  odorata  L.  adult  trees  from  forest  areas  by  micropropagation using shoot regeneration from axillary buds in vitro. Nodal segments (0.5 and 1.0 cm) of shoots formed from cuttings taken from canopy sprouts were used. The explants were successfully established in vitro on MS medium supplemented with 2.22 μM BAP, 0.49 μM AIB, 0.28 μM GA3 and PPM (0 and 8.6 μM). Shoot multiplication on MS with combinations of GA3 (0.28 and 1.12 μM) and BAP (2.2, 3.3, 4.4, 6.6, and 8.8 μM) and shoot rooting on medium with 4.9 μM AIB, 5.7 μM AIA or 5.37 μM ANA were evaluated. The MS medium supplemented with 0.28 μM GA3 and 8.8 μM BAP generated 4.16 shoots per explant. The best rooting induction was observed on medium containing 4.9 μM IBA, resulting in 60% of shoot rooting. The plantlets rooted were acclimatized and showed normal development with 97% survival rate. The use of canopy sprouts as explants is feasible in the rescue of C. odorata and the combination of BAP and GA3 favors in vitro multiplication,   



Key words:      Meliaceae; plant growth regulators; tissue culture</abstract>
  <abstract>


RESUMO:         O objetivo deste trabalho foi o resgate vegetativo de árvores adultas de Cedrela odorata L. de áreas florestais por micropropagação utilizando regeneração de brotos de gemas axilares in vitro. Foram utilizados segmentos nodais (0,5 e 1,0 cm) de brotações formadas de estaca retiradas de ramos da copa. Os explantes foram estabelecidos com sucesso in vitro em meio MS suplementado com 2,22 μM BAP; 0,49 μM AIB; 0,28 μM GA3 e PPM™ (0 e 8,6 μM). Avaliados a multiplicação de brotos em MS com combinações de GA3 (0,28 e 1,12 μM) e BAP (2,2; 3,3; 4,4; 6,6 e 8,8 μM) e o enraizamento de brotos em meio com 4,9 μM AIB; 5,7 μM AIA e 5,37 μM ANA. O meio MS suplementado com 0,28 μM GA3 e 8,8 μM de BAP gerou 4,16 brotações por explante. A melhor indução de enraizamento foi observada em meio contendo 4,9 μM de IBA, resultando em 60% de explantes enraizados. As plântulas enraizadas foram aclimatadas e apresentaram desenvolvimento normal com taxa de sobrevivência de 97%. O uso de brotos de dossel como explantes é viável no resgate de C. odorata e a combinação de BAP e GA3 favorece a multiplicação in vitro.  



Palavras-chave:       Meliaceae; reguladores de crescimento de plantas; cultura de tecidos</abstract>
  <note>

Publicação online; 30 ref.; 4 tables; Summaries (En, Pt)</note>
  <subject>
    <topic>CEDRO</topic>
  </subject>
  <subject>
    <topic>ÁRVORE FLORESTAL</topic>
  </subject>
  <subject>
    <topic>REGULADOR DE CRESCIMENTO</topic>
  </subject>
  <subject>
    <topic>MICROPROPAGAÇÃO</topic>
  </subject>
  <subject>
    <topic>CULTURA DE TECIDO</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>2026-2192</identifier>
    <identifier type="issn">1981-1160</identifier>
    <identifier type="local">BR2026000652</identifier>
    <part>
      <text>v. 16(4) p. 1-7; (2021)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v16i4a8944/762</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v16i4a8944/762</url>
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    <recordCreationDate encoding="marc">260525</recordCreationDate>
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