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  <titleInfo>
    <title>Phenological stages of the ‘Paluma’ guava tree in a region of subtropical climate according to the BBCH scale</title>
  </titleInfo>
  <name type="personal">
    <namePart>Monteiro, Vanessa da Fontoura Custódio</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Gonçalves, Emerson Dias</namePart>
    <role>
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  <name type="personal">
    <namePart>Moura, Pedro Henrique Abreu</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Silva, Larissa Vieira da</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Martins, Fabrina Bolzan</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <name type="personal">
    <namePart>Norberto, Paulo Márcio</namePart>
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  <abstract>


ABSTRACT:       In  the  Serra  da  Mantiqueira  region,  of  subtropical  altitude  climate,  the  cultivation  of  guava  is  geared  towards  subsistence farming. In this region, there is still no description of the phenological cycle of the guava tree or the definition of the most appropriate fructification pruning times. Therefore, the objective of this study was to characterize the phenology of the reproductive development of the guava tree from the cultivar Paluma in two times of fructification pruning (June and August) and to determine the degree-days requirements of the cultivar under the conditions of subtropical altitude climate. Through the BBCH general scale associated with the traditional Fleckinger’s code, it was possible to observe the duration of the different phenological stages. The duration of the phenological cycle from pruning to fruit harvest was 249 days for plants pruned in June and 224 days for pruned plants in August. The heat unit accumulation from B1:01 to J:81 did not vary significantly between the pruning times. Plant pruning in August allows early flowering and a shorter phenological cycle.  



Key words:      degree-days; fructification pruning; phenology; Psidium guajava</abstract>
  <abstract>


RESUMO:     Na região da Serra da Mantiqueira, onde ocorre o clima subtropical de altitude, o cultivo da goiaba é voltado para a agricultura de subsistência. Nesta região, ainda não há uma descrição do ciclo fenológico da goiabeira nem a definição das épocas de poda de frutificação mais adequadas. Portanto, o objetivo do estudo foi caracterizar a fenologia do desenvolvimento reprodutivo da goiabeira da cultivar Paluma em duas épocas de poda de frutificação (junho e agosto) e determinar as exigências de graus-dia da cultivar nas condições de clima subtropical de altitude.  Por meio da escala geral BBCH associada ao código de Fleckinger tradicional, foi possível observar a duração dos diferentes estágios fenológicos. A duração do ciclo fenológico, da poda à colheita dos frutos, foi de 249 dias para as plantas podadas em junho e de 224 dias para as plantas podadas em agosto. O acúmulo de unidades de calor de B1:01 a J:81 não variou significativamente entre as épocas de poda. A poda das plantas em agosto proporciona floração precoce e ciclo fenológico mais curto.   


Palavras-chave:       graus-dia; poda de frutificação; fenologia; Psidium guajava</abstract>
  <note>

Publicação online; 26 ref.; 4 tables; 3 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>AGRICULTURA DE SUBSISTÊNCIA</topic>
  </subject>
  <subject>
    <topic>GOIABA</topic>
  </subject>
  <subject>
    <topic>FENOLOGIA</topic>
  </subject>
  <subject>
    <topic>PODA</topic>
  </subject>
  <subject>
    <topic>FRUTIFICAÇÃO</topic>
  </subject>
  <subject>
    <topic>COLHEITA</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>2026-2115</identifier>
    <identifier type="issn">1981-1160</identifier>
    <identifier type="local">BR2026000625</identifier>
    <part>
      <text>v. 16(3) p. 1-8; (2021)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v16i3a177/746</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v16i3a177/746</url>
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