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Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.

Studies involving native tree species are important in the development and improvement of technologies aiming the recovery of forest ecosystems and the conservation of species. A. parvifolium, popularly known as guatambu-amarelo, is considered a plant of tree size, with ecological and economic impor...

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Autor principal: Otalakoski, Josiane
Formato: Trabalho de Conclusão de Curso (Graduação)
Idioma: Português
Publicado em: Universidade Tecnológica Federal do Paraná 2020
Assuntos:
Sementes
Plantas florestais
Germinação
Seeds
Forest plants
Germination
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
Acesso em linha: http://repositorio.utfpr.edu.br/jspui/handle/1/11130
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spelling riut-1-111302020-11-13T13:08:38Z Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC. Floral biology and seed analysis of Aspidosperma parvifolium A. DC. Otalakoski, Josiane Filippi, Marciele Possenti, Jean Carlo Sereia, Diesse Aparecida de Oliveira Filippi, Marciele Warmling, Jheniffer Valmira Sementes Plantas florestais Germinação Seeds Forest plants Germination CNPQ::CIENCIAS BIOLOGICAS::BOTANICA Studies involving native tree species are important in the development and improvement of technologies aiming the recovery of forest ecosystems and the conservation of species. A. parvifolium, popularly known as guatambu-amarelo, is considered a plant of tree size, with ecological and economic importance, in construction and landscaping, occurring in the Atlantic Forest. The understanding of its reproductive characteristics and seed quality are essential variables for using and conservation of the species. The objective of this study was to characterize aspects of the floral biology of A. parvifolium, as well as to measure fruits and quantify seeds by fruit, analyzing physical and physiological parameters and the potential of seeds germination. The work was carried out in the year 2017, at the Universidade Tecnológica Federal do Paraná. The study was divided in two phases, where the first one aimed the analysis of pollen viability, anthesis and floral senescence, percentage and measurement of fruits produced. In the second phase, seeds were analysed for water content, weight of one thousand seeds, percentage of germination, exudate pH, total soluble solids (°Brix), phytosanity and electrical conductivity. The maximum point for the flower buds was established at 18:00 hours and the species has a high pollen viability rate, with more than 90% of viable pollens. The percentage of fruits produced was low, with only 16%. The weight of one thousand seeds was of 113,5g with water content of 15,55%. After 05 days, the seeds began the germination process, reaching 83% of germinated seeds. The electrical conductivity and the °Brix were the analyses that presented more satisfactory results, therefore, these tests can be applied to verify the viability of a lot of seeds of A. parvifolium. There was a high incidence of pathogenic fungi in newly collected A. parvifolium seeds, mainly Fusarium sp. and Colletotrichum sp. All the information available here is important for the characterization of the species, as well as data that assists its preservation and economic production. Estudos envolvendo espécies arbóreas nativas possuem importância no desenvolvimento e aperfeiçoamento de tecnologias visando a recuperação de ecossistemas florestais e a conservação de espécies. A. parvifolium ,conhecida popularmente como guatambu-amarelo, é considerada planta de porte arbóreo, com importância ecológica e econômica, na construção civil e no paisagismo, tendo ocorrência na Mata Atlântica. O entendimento quanto as características reprodutivas e a qualidade de sementes são variaveis essenciais para o uso e conservação de espécies. Dessa forma, objetivou-se caracterizar aspectos da biologia floral de A. parvifolium, bem como mensurar frutos e quantificar sementes por fruto, analisando parâmetros físicos, fisiológicos, como também o potencial germinativo de sementes da espécie. O trabalho foi realizado no ano de 2017, na Universidade Tecnológica Federal do Paraná. O estudo foi dividido em duas fases, onde na primeira foi analisada a viabilidade polínica, antese e senescência floral, percentagem e mensuração de frutos produzidos. Na segunda fase foram analisadas as sementes quanto o teor de água, peso de mil sementes, porcentagem de germinação, pH do exsudato, sólidos solúveis totais (°brix), fitossanidade e condutividade elétrica. O máximo para a abertura dos botões florais foi estabelecido as 18:00 horas sendo que a espécie possui alta taxa de viabilidade polínica, com mais de 90% de pólens viáveis. A percentagem de frutos produzidos foi baixa, com apenas 16%. O peso de mil sementes foi de 113,5g com teor de água de 15,55%. Após 05 dias as sementes iniciaram o processo de germinação, alcançando 83% de sementes germinadas. A condutividade elétrica e o Brix foram as analises que apresentaram resultados mais satisfatórios, portanto, estes testes podem ser aplicados para verificar a viabilidade de um lote de sementes de A. parvifolium. Observaram-se alta incidência de fungos patógenos nas sementes recém coletadas de A. parvifolium, principalmente Fusarium sp. e Colletotrichum sp. Todas as informações aqui disponíveis são importantes para a caracterização da espécie, bem como dados que auxiliam sua preservação e produção econômica. 2020-11-13T13:08:38Z 2020-11-13T13:08:38Z 2017-06-22 bachelorThesis OTALAKOSKI, Josiane. Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC. 2017. 62 f. Trabalho de Conclusão de Curso (Graduação) - Universidade Tecnológica Federal do Paraná, Dois Vizinhos, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/11130 por openAccess application/pdf Universidade Tecnológica Federal do Paraná Dois Vizinhos Brasil Licenciatura em Ciências Biológicas UTFPR
institution Universidade Tecnológica Federal do Paraná
collection RIUT
language Português
topic Sementes
Plantas florestais
Germinação
Seeds
Forest plants
Germination
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
spellingShingle Sementes
Plantas florestais
Germinação
Seeds
Forest plants
Germination
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
Otalakoski, Josiane
Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
description Studies involving native tree species are important in the development and improvement of technologies aiming the recovery of forest ecosystems and the conservation of species. A. parvifolium, popularly known as guatambu-amarelo, is considered a plant of tree size, with ecological and economic importance, in construction and landscaping, occurring in the Atlantic Forest. The understanding of its reproductive characteristics and seed quality are essential variables for using and conservation of the species. The objective of this study was to characterize aspects of the floral biology of A. parvifolium, as well as to measure fruits and quantify seeds by fruit, analyzing physical and physiological parameters and the potential of seeds germination. The work was carried out in the year 2017, at the Universidade Tecnológica Federal do Paraná. The study was divided in two phases, where the first one aimed the analysis of pollen viability, anthesis and floral senescence, percentage and measurement of fruits produced. In the second phase, seeds were analysed for water content, weight of one thousand seeds, percentage of germination, exudate pH, total soluble solids (°Brix), phytosanity and electrical conductivity. The maximum point for the flower buds was established at 18:00 hours and the species has a high pollen viability rate, with more than 90% of viable pollens. The percentage of fruits produced was low, with only 16%. The weight of one thousand seeds was of 113,5g with water content of 15,55%. After 05 days, the seeds began the germination process, reaching 83% of germinated seeds. The electrical conductivity and the °Brix were the analyses that presented more satisfactory results, therefore, these tests can be applied to verify the viability of a lot of seeds of A. parvifolium. There was a high incidence of pathogenic fungi in newly collected A. parvifolium seeds, mainly Fusarium sp. and Colletotrichum sp. All the information available here is important for the characterization of the species, as well as data that assists its preservation and economic production.
format Trabalho de Conclusão de Curso (Graduação)
author Otalakoski, Josiane
author_sort Otalakoski, Josiane
title Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
title_short Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
title_full Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
title_fullStr Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
title_full_unstemmed Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC.
title_sort biologia floral e análise de sementes de aspidosperma parvifolium a. dc.
publisher Universidade Tecnológica Federal do Paraná
publishDate 2020
citation OTALAKOSKI, Josiane. Biologia floral e análise de sementes de Aspidosperma parvifolium A. DC. 2017. 62 f. Trabalho de Conclusão de Curso (Graduação) - Universidade Tecnológica Federal do Paraná, Dois Vizinhos, 2017.
url http://repositorio.utfpr.edu.br/jspui/handle/1/11130
_version_ 1805320781799882752
score 10,814766

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