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  <leader>04010nab a2200337 i 4500</leader>
  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20240423144221.0</controlfield>
  <controlfield tag="008">240423b2021    bl.ar|pooa||| 00| 0 eng |</controlfield>
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    <subfield code="b">eng</subfield>
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    <subfield code="a">F01</subfield>
    <subfield code="b">2120</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Espindula, Marcelo Curitiba </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Tavella, Leonardo Barreto</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Schmidt, Raquel</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Rocha, Rodrigo Barros</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Dias, Jairo Rafael Machado</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Bravin, Ma&#xED;sa Pinto</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Partelli, F&#xE1;bio Luiz</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Yield of robusta coffee in different spatial arrangements</subfield>
  </datafield>
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    <subfield code="a">
Publica&#xE7;&#xE3;o on-line; 31 ref.; 2 tables; Summaries (En, Pt)</subfield>
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Abstract &#x2013; The objective of this work was to determine the contribution
of the number of stems to the composition of individual plant yield, and to
individual and overall robusta coffee (Coffea canephora) yield at different
planting densities, using a fixed number of stems per plant. The experiment
was carried out in two phases. The first phase was performed from 2011 to
2015, in the municipality of Ouro Preto do Oeste, in the state of Rond&#xF4;nia
(RO), Brazil, to evaluate different numbers of stems per plant (1, 2, 3, 4, 5, and
6). The second phase was conducted from 2013 to 2018, in the municipality of
Alta Floresta D&#x2019;Oeste, RO, to evaluate plant densities (at 1,666, 1,904, 2,222,
2,666, and 3,333 plants ha-1), with an initial density of four stems per plant in
all treatments. The increase of number of stems per plant promotes a quadratic
response to the average and cumulated yield of coffee plants, and the maximum
yield is attained with four stems per plant. The number of stems should not
exceed four, to avoid their tipping during years of high production. Plant
density of 3,333 plants per hectare, with 4 stems per plant and 1 m spacing,
promotes the reduction of individual plant yield; however, it results in higher
overall crop yield.


Index terms: Coffea canephora, plant density, orthotropic stem, Amazon.</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">

Resumo &#x2013; O objetivo deste trabalho foi determinar a contribui&#xE7;&#xE3;o do n&#xFA;mero
de hastes para a composi&#xE7;&#xE3;o da produtividade individual das plantas e a
produtividade individual e geral de cafeeiros robusta (Coffea canephora),
em diferentes densidades de plantio, utilizando-se um n&#xFA;mero fixo de hastes
por planta. O experimento foi realizado em duas fases. A primeira fase foi
realizada entre 2011 e 2015, no munic&#xED;pio de Ouro Preto do Oeste, no estado
de Rond&#xF4;nia (RO), para avaliar diferentes n&#xFA;meros de hastes por planta (1, 2,
3, 4, 5 e 6). A segunda fase foi conduzida entre 2013 e 2018, no munic&#xED;pio de
Alta Floresta D&#x2019;Oeste, RO, para avaliar densidades de plantio (a 1.666, 1.904,
2.222, 2.666 e 3.333 plantas por hectare), tendo-se utilizado a densidade
inicial de quatro hastes por planta em todos os tratamentos. O incremento
do n&#xFA;mero de hastes por planta promove resposta quadr&#xE1;tica &#xE0; produtividade
m&#xE9;dia e acumulada dos cafeeiros, e a m&#xE1;xima produtividade &#xE9; obtida com
quatro hastes por planta. O n&#xFA;mero de hastes n&#xE3;o deve exceder quatro, para
evitar seu tombamento durante os anos de alta produ&#xE7;&#xE3;o. A densidade de
3.333 plantas ha-1, com quatro hastes por planta e espa&#xE7;amento de um metro,
promove redu&#xE7;&#xE3;o da produtividade individual das plantas, no entanto, resulta
em maior produtividade geral da lavoura.


Termos para indexa&#xE7;&#xE3;o: Coffea canephora, densidade de plantas, hastes
ortotr&#xF3;picas, Amaz&#xF4;nia.</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">CAF&#xC9;</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">DENSIDADE DE PLANTIO</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">CAULE</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">PRODUTIVIDADE</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">AMAZ&#xD4;NIA</subfield>
  </datafield>
  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">920</subfield>
    <subfield code="9">25801</subfield>
    <subfield code="d">Bras&#xED;lia-DF Empresa Brasileira de Pesquisa Agropecu&#xE1;ria - EMBRAPA 1966-</subfield>
    <subfield code="o">2023-436357</subfield>
    <subfield code="t">Pesquisa Agropecu&#xE1;ria Brasileira (Brazil)</subfield>
    <subfield code="x">0100-204X</subfield>
    <subfield code="g">v. 56 p. 1-9; (2021)</subfield>
    <subfield code="w">BR2024000580</subfield>
  </datafield>
  <datafield tag="856" ind1=" " ind2=" ">
    <subfield code="u">https://www.scielo.br/j/pab/a/R8FCRrfFJ4jCYmdbbjSkc9N/?format=pdf&amp;lang=en</subfield>
  </datafield>
  <datafield tag="942" ind1=" " ind2=" ">
    <subfield code="c">Anal&#xED;tica</subfield>
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  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">299298</subfield>
    <subfield code="d">299298</subfield>
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