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  <titleInfo>
    <title>Aboveground biomass of a Eucalyptus hybrid subjected to two water regimes</title>
  </titleInfo>
  <name type="personal">
    <namePart>Poleto, Gian Carlos</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Santos,  Kristiana Fiorentin dos</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Ludvichak, Aline Aparecida</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Momolli, Dione Richer</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Schumacher, Mauro Valdir</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Stahl, James</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Carneiro, Rafaela Lorenzato</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
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  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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  <abstract>


ABSTRACT:       The objective of this work was to estimate the aboveground biomass production of 76-month-old, Eucalyptus urophylla× Eucalyptus  sp.  hybrids,  subjected  partial  exclusion  of  throughfall.  The  experiment  used  two  water  regimes:  one  treatment  with  throughfall (WET), receiving 100% of the throughfall, and the other treatment with the partial exclusion of throughfall (PET), receiving only  70%.  The  selected  trees  were  sectioned  and  fractionated  into  the  following  components:  leaves,  branches,  stembark,  and  stemwood. The WET treatment had higher total biomass (221.00 Mg ha-1) than the PET treatment (206.26 Mg ha-1) and the distribution of biomass for both treatments was as follows: stemwood &gt; branches &gt; stembark &gt; leaves. The stem (wood + bark) accounted for 91.5%  of  the  total  biomass  in  the  WET  treatment  and  91.2%  in  the  PET  treatment.  The  canopy  (leaves  +  branches)  accounted  for  8.5%  and  9.0%  in  the  WET  and  PET  treatments,  respectively.  These  results  indicate  that  this  Eucalyptus  hybrid  maintained  satisfactory biomass production, despite the lower availability of water.  



Key words:      drought tolerance; exclusion of throughfall; tree growth; tree productivity; water deficit</abstract>
  <abstract>


RESUMO:     O objetivo deste trabalho foi estimar a produção de biomassa acima do solo de um híbrido de Eucalyptus urophylla× Eucalyptus sp. com 76 meses de idade submetido a exclusão parcial da precipitação interna. O experimento foi instalado em dois regimes hídricos: um recebendo 100% da precipitação interna, tratamento sem exclusão da precipitação interna (SEPi) e o outro recebendo apenas 70%, tratamento com exclusão parcial da precipitação interna (CEPi). Após a seleção das árvores, elas foram seccionadas e fracionadas nos componentes: folhas, galhos, casca do tronco e madeira do tronco. O tratamento SEPi apresentou valor superior de biomassa total (221,00 Mg ha-1) em comparação ao tratamento CEPi (208,26 Mg ha-1). A biomassa, para ambos os tratamentos, foi distribuída na seguinte ordem: madeira do fuste &gt; galhos &gt; casca do fuste &gt; folhas. O fuste (madeira + casca) acumulou 91,5% da biomassa total no tratamento SEPi e 91,2% no tratamento CEPi. Já a copa (folhas + galhos) apresentou um acúmulo de 8,5 e 9,0% nos tratamentos SEPi e CEPi, respectivamente. Os resultados indicam que o híbrido de eucalipto manteve produção satisfatória de biomassa, apesar da menor disponibilidade de água.   



Palavras-chave:    tolerância à seca; exclusão da precipitação interna; crescimento arbóreo; produtividade arbórea; déficit hídrico</abstract>
  <note>

Publicação online; 23 ref.; 5 tables; Summaries (En, Pt)</note>
  <subject>
    <topic>EUCALIPTO</topic>
  </subject>
  <subject>
    <topic>CRESCIMENTO</topic>
  </subject>
  <subject>
    <topic>BIOMASSA</topic>
  </subject>
  <subject>
    <topic>DEFICIÊNCIA HÍDRICA</topic>
  </subject>
  <subject>
    <topic>PRODUTIVIDADE</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">BR2026000556</identifier>
    <part>
      <text>v; 15(3) p. 1-6; (2020)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i3a7978/59</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i3a7978/59</url>
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    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">260507</recordCreationDate>
    <recordChangeDate encoding="iso8601">20260507125731.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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