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  <titleInfo>
    <title>Different substrates and protected environments for the initial development of Richeria grandis Vahl seedlings</title>
  </titleInfo>
  <name type="personal">
    <namePart>Moura, Cristiane Coelho de</namePart>
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  <name type="personal">
    <namePart>Costa, Thaís Ribeiro</namePart>
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  <name type="personal">
    <namePart>Oliveira, Paula Alves</namePart>
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  <name type="personal">
    <namePart>Moura, Luciana Coelho de</namePart>
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  <name type="personal">
    <namePart>Carvalho, Letícia Renata de</namePart>
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  <name type="personal">
    <namePart>Titon, Miranda</namePart>
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  </name>
  <name type="personal">
    <namePart>Pereira,  Israel Marinho</namePart>
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  <name type="personal">
    <namePart>Machado, Evandro Luiz Mendonça</namePart>
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ABSTRACT:      Due to the copious anthropization in Gallery Forests and the obligation to restore these spaces, together with the scarcity of information regarding a methodology for seedling emergence and production in a nursery, the objective of this research was  to  evaluate  the  impact  of  different  substrates  and  levels  of  shading  on  seedling  emergence  and  quality  of  the  species  Richeria grandis Vahl. The fruits, collected in 18 matrix trees in Gallery Forests, were benefited; the seeds were depulped and sown on the same day of collection. The experiment was conducted in a greenhouse, where three substrate compositions were used: S1 – 70% of vermiculite and 30% carbonized rice husk; S2 – 50% of bioplant®, 35% of vermiculite and 15% carbonized rice husk; S3 – 70% of subsoil land and 30% of tanned bovine manure. The substrates were placed in tubes with a capacity of 180 cm³ and maintained under three shading levels: 0%, 30% and 50%. The experimental design was completely randomized in a subdivided block design. All the evaluated characteristics were inferior in the 0% shading. Emergence, chlorophyll content, height and diameter of the root collar were greater under 30% and 50% shading levels, as well as in substrates S1 and S2. The substrate that most positively influenced R. grandis seedling quality was the S2. Thus, R. grandis is a species that needs shade in the early stage of its development.  



Key words:      gallery forests; late succession; restoration of degraded areas; seedling production; shading levels</abstract>
  <abstract>


RESUMO:      Por decorrência do alto grau de antropização em Matas de Galeria e sua obrigatoriedade em restaurá-las, aliada à  escassez  de  informações  sobre  uma  metodologia  de  emergência  e  produção  de  mudas  em  viveiro,  objetivou-se  avaliar  diferentes substratos e níveis de sombreamentos sobre a emergência e qualidade de mudas da espécie Richeria grandis Vahl. Os frutos, coletados em 18 árvores-matrizes em Matas de Galeria, foram beneficiados, as sementes despolpadas e semeadas no  mesmo  dia  da  coleta.  O  experimento  foi  conduzido  em  casa  de  vegetação,  onde  foram  utilizadas  três  composições  de  substratos: S1 – 70% de vermiculita e 30% de casca de arroz carbonizada; S2 – 50% de bioplant®, 35% de vermiculita e 15% de casca de arroz carbonizada; S3 – 70% de terra de subsolo e 30% de esterco bovino curtido. Os substratos foram colocados em tubetes com capacidade de 180 cm³ e mantidos em três níveis de sombreamento: 0, 30 e 50%. O delineamento experimental foi  o  inteiramente  casualizado  em  esquema  de  parcelas  sub-subdivididas.  Todas  as  características  avaliadas  são  inferiores  no sombreamento 0%. A emergência, o teor de clorofila, a altura e o diâmetro do coleto são maiores nos sombreamentos 30 e 50%, bem como nos substratos S1 e S2. O substrato que mais influenciou, de forma positiva, a qualidade das mudas da R. grandis foi o S2. Assim, a R. grandis é uma espécie que necessita de sombra na fase inicial de seu desenvolvimento.  



Palavras-chave:      matas  de  galeria;  sucessão  tardia;  restauração  de  áreas  degradadas;  produção  de  mudas;  níveis  de  sombreamento</abstract>
  <note>

Publicação online; 26 ref.; 4 tables; 3 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>MATA CILIAR</topic>
  </subject>
  <subject>
    <topic>MUDA</topic>
  </subject>
  <subject>
    <topic>PRODUÇÃO</topic>
  </subject>
  <subject>
    <topic>SOMBREAMENTO</topic>
  </subject>
  <subject>
    <topic>REGENERAÇÃO</topic>
  </subject>
  <subject>
    <topic>SUBSTRATO DE CULTURA</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>2026-1793</identifier>
    <identifier type="issn">1981-1160</identifier>
    <identifier type="local">BR2026000554</identifier>
    <part>
      <text>v. 15(3) p. 1-8; (2020)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i3a7890/55</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i3a7890/55</url>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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