Climatic seasonality influences the development of pollen grains and fruiting in Annona squamosa

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dc.creatorBruno Rafael Alves Rodrigues
dc.creatorSilvia Nietsche
dc.creatorMaria Olívia Mercadante Simões
dc.creatorMarlon Cristian Toledo Pereira
dc.creatorLeonardo Monteiro Ribeiro
dc.date.accessioned2022-10-10T13:24:24Z
dc.date.accessioned2025-09-08T23:30:42Z
dc.date.available2022-10-10T13:24:24Z
dc.date.issued2018-06
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.envexpbot.2018.03.025
dc.identifier.issn0098-8472
dc.identifier.urihttps://hdl.handle.net/1843/46128
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofEnvironmental and Experimental Botany
dc.rightsAcesso Restrito
dc.subjectFruta-de-conde
dc.subjectPolinização
dc.subjectPólen
dc.subjectGerminação
dc.subject.otherviabilidade polínica
dc.subject.otherpinheira
dc.subject.othermicroscopia eletrônica de transmissão
dc.titleClimatic seasonality influences the development of pollen grains and fruiting in Annona squamosa
dc.typeArtigo de periódico
local.citation.epage248
local.citation.spage240
local.citation.volume150
local.description.resumoArtificial pollination is key in the commercial production of the sugar apple (Annona squamosa). The influence of the marked climatic seasonality typical of the semi-arid regions, characterized by two seasons (dry and rainy) where this crop is grown on pollen grain development and performance and, consequently, productivity is unclear. To assess whether pre- and post-pollination events are sensitive to seasonal variations, the anther structure, the pollen grain ultrastructure and germination, the in vitro growth of the pollen tube and the fruit set of the species were investigated in the dry and rainy seasons in central Brazil. Floral bud development time and thermal requirement were, 22 days and 360.8 degree-days in the dry season and 34 days and 622.2 degree-days in the rainy season, respectively. Anther development was slower in the rainy season, but the anatomy was not affected. Pollen grains showed greater mucilage content, reserve accumulation, in vitro germination and pollen tube length in the rainy season. Although seasonality did not influence the efficiency of artificial pollination, its effects on microsporogenesis and microgametogenesis, promote higher fruit quality in the rainy season.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0098847218302910

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