<?xml version="1.0" encoding="UTF-8"?>
<record
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd"
    xmlns="http://www.loc.gov/MARC21/slim">

  <leader>03971nab a2200325 i 4500</leader>
  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20240115093034.0</controlfield>
  <controlfield tag="008">240115b2022    bl.ar|pooa||| 00| 0 eng |</controlfield>
  <datafield tag="040" ind1=" " ind2=" ">
    <subfield code="a">BR-BrBNA</subfield>
    <subfield code="b">eng</subfield>
  </datafield>
  <datafield tag="072" ind1=" " ind2=" ">
    <subfield code="a">F63</subfield>
    <subfield code="b">1823</subfield>
  </datafield>
  <datafield tag="072" ind1=" " ind2=" ">
    <subfield code="a">F30</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Lima, Marcos Ven&#xE2;ncio </subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Oliveira, Frederico In&#xE1;cio Costa de</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Ramos, Sem&#xED;ramis Rabelo Ramalho</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Freitas,  Breno Magalh&#xE3;es</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Arag&#xE3;o, Fernando Antonio Souza de</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Flowering phenology and floral biology in pumpkin cultivars</subfield>
  </datafield>
  <datafield tag="500" ind1=" " ind2=" ">
    <subfield code="a">Publica&#xE7;&#xE3;o online; 22 ref.; 2 tables; 2 illus.; Summaries (En, Pt)</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">
ABSTRACT - Phenological events, in particular, flowering phenology and aspects of floral biology help to understand the
relationship of plants with their pollinators. Thus, this study sought to estimate, under semi-arid conditions, the relationship
between different genotypes of pumpkin or winter squash (Cucurbita moschata Duch.) and the environment, under the aspects of
reproductive biology. Four cultivars were evaluated in three productive cycles, measuring the variables daily flower emergence,
stigma receptivity, anthesis time and the morphometry of pistil and staminate flowers. The production of male flowers was
higher than female flowers with a higher proportion in the third production cycle characterized by higher air temperature and
lower relative humidity. Among cultivars, &#x2018;Jacarezinho&#x2019; and &#x2018;Sergipe&#x2019; presented the highest and the lowest values of flower
production, respectively. Female flowers remain open longer than male flowers and stigmas remain receptive until the flowers
close. Considering the morphometric data, there is positive association between the petal length and the corolla diameter, and
between access to the nectar and the anther size, with a difference between cultivars and cultivation conditions.


Key words: Reproductive biology. Flowering. Cucurbita moschata. Anthesis. Stigma receptivity</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">
RESUMO - Os eventos fenol&#xF3;gicos, em particular, a fenologia da fl ora&#xE7;&#xE3;o e os aspectos da biologia floral ajudam a
compreender a rela&#xE7;&#xE3;o das plantas com seus polinizares. Assim, essa pesquisa buscou estimar, em condi&#xE7;&#xE3;o semi&#xE1;rida, a
rela&#xE7;&#xE3;o entres diferentes gen&#xF3;tipos de ab&#xF3;bora (Cucurbita moschata Duch.) e o ambiente, sob os aspectos da biologia reprodutiva.
Quatro cultivares foram avaliados em tr&#xEA;s ciclos produtivo, mensurando as vari&#xE1;veis emiss&#xE3;o di&#xE1;ria de fl ores, receptividade do
estigma, o tempo de antese e a morfometria das fl ores pistiladas e estaminadas. A emiss&#xE3;o de fl ores masculinas foi superior as fl ores
femininas com maior propor&#xE7;&#xE3;o no terceiro ciclo produtivo caracterizado por maior temperatura do ar e menor umidade relativa.
Entre cultivares o &#xB4;Jacarezinho` e &#xB4;Sergipe` apresentaram a maior e a menor emiss&#xE3;o, respectivamente. As fl ores femininas
permanecem abertas em maior tempo em rela&#xE7;&#xE3;o as fl ores masculinas e os estigmas permaneceram receptivos at&#xE9; o fechamento
das fl ores. Considerando os dados morfom&#xE9;tricos, h&#xE1; associa&#xE7;&#xE3;o positiva entre o cumprimento da p&#xE9;tala e o di&#xE2;metro da corola
e entre o acesso ao n&#xE9;ctar e o tamanho da antera, com diferen&#xE7;a entre os cultivares e as condi&#xE7;&#xF5;es de cultivo.


Palavras-chave: Biologia reprodutiva. Florescimento. Cucurbita moschata. Antese. Receptividade do estigma.</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">AB&#xD3;BORA</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">CONDI&#xC7;&#xC3;O AMBIENTAL</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">COMPORTAMENTO DE VARIEDADE</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">REPRODU&#xC7;&#xC3;O</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">FLORA&#xC7;&#xC3;O</subfield>
  </datafield>
  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">4290</subfield>
    <subfield code="9">275632</subfield>
    <subfield code="d">Fortaleza-CE Universidade Federal do Cear&#xE1;. Centro de Ci&#xEA;ncias Agr&#xE1;rias 2002</subfield>
    <subfield code="o">2023-437432</subfield>
    <subfield code="t">Revista Ci&#xEA;ncia Agron&#xF4;mica (Brazil)</subfield>
    <subfield code="x">0045-6888; 1806-6690 (on-line)</subfield>
    <subfield code="g">v. 53 p. 1-9; (2022)</subfield>
    <subfield code="w">BR2023002232</subfield>
  </datafield>
  <datafield tag="856" ind1=" " ind2=" ">
    <subfield code="u">https://www.scielo.br/j/rca/a/MFtZwpyrDCJFJTS9LZWB7yS/?format=pdf&amp;lang=en</subfield>
  </datafield>
  <datafield tag="942" ind1=" " ind2=" ">
    <subfield code="c">Anal&#xED;tica</subfield>
  </datafield>
  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">298320</subfield>
    <subfield code="d">298320</subfield>
  </datafield>
</record>
