Dissertação

Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)

This work had as objective to describe the phenology of visgueiro-of-igapó (P. discolor Spruce ex Benth.), correlating it with the ambient factors, well with describing the morphology of seedlings and young plants, beyond evaluating the efficiency of the application of pregerminative treatments,...

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Autor principal: Pereira, Sammy Aquino
Grau: Dissertação
Idioma: por
Publicado em: Instituto Nacional de Pesquisas da Amazônia - INPA 2020
Assuntos:
Visgueiro-do-igapó
Fenologia
Sementes
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/5134
http://lattes.cnpq.br/0625749704569842
id oai:repositorio:1-5134
recordtype dspace
spelling oai:repositorio:1-5134 Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth) Pereira, Sammy Aquino Ferreira, Sidney Alberto do Nascimento Visgueiro-do-igapó Fenologia Sementes This work had as objective to describe the phenology of visgueiro-of-igapó (P. discolor Spruce ex Benth.), correlating it with the ambient factors, well with describing the morphology of seedlings and young plants, beyond evaluating the efficiency of the application of pregerminative treatments, aiming the overcoming of the dormancy of the seeds. It was evidenced that the species flowered and bore fruit since the beginning of the flood, culminating the period of the production of fruits with the maximum period of the flood, what favors the dispersion of the species, which can be characterized as semideciduous. It was observed that the germination is of the epigeous-phanerocotylar type, presenting from 1 to 3 pairs of leaflets, with 14 to 19 pairs of leaflets. The young plant presents woody base, with 5 eophylls, alternating, with a spherical gland in the insertion of the leaflets and a vegetative egg yolk in the lower insertion of each eophylls. Was confirmed that the seeds present seed coat dormancy and that this can be surpassed with the blunts or sandpaper, of the seeds in the proximal portion and proximal and distal portions at the same time. The pregerminative treatment with humid and dry heat, under different temperatures, for some periods of conditioning, had not been effective for the overcoming of the dormancy of seeds of P. discolor Este trabalho teve como objetivo descrever a fenologia de visgueiro-do-igapó (Parkia discolor Spruce ex Benth.), correlacionando-a com os fatores ambientais, bem como descrever a morfologia da plântula e planta jovem, além de avaliar a eficiência da aplicação de tratamentos pré-germinativos, visando a superação da dormência das sementes. Constatou-se que a espécie floresceu e frutificou desde o início da cheia, culminando a produção de frutos com o período máximo da enchente, o que favorece a dispersão das sementes, podendo ser caracterizada como semidecídua. Foi observado que a germinação é do tipo epígea e fanerocotiledonar, apresentando de 1 a 3 pares de folíolos, com 14 a 19 pares de foliólulos. A planta jovem apresenta base lenhosa, com 5 eófilos, alternos, com uma glândula esférica na inserção dos folíolos e uma gema vegetativa na inserção inferior de cada eófilo. Confirmou-se que as sementes apresentam dormência tegumentar, e que esta pode ser superada com desponte ou lixamento das sementes na porção proximal e porção proximal mais distal, ao mesmo tempo. O pré-tratamento com calor úmido e seco, sob diferentes temperaturas, por vários períodos de condicionamento, não foram efetivos para a superação da dormência de sementes de P. discolor. 2020-01-10T16:46:32Z 2020-01-10T16:46:32Z 2007-06-19 Dissertação https://repositorio.inpa.gov.br/handle/1/5134 http://lattes.cnpq.br/0625749704569842 por Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Instituto Nacional de Pesquisas da Amazônia - INPA Ciências de Florestas Tropicais - CFT
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language por
topic Visgueiro-do-igapó
Fenologia
Sementes
spellingShingle Visgueiro-do-igapó
Fenologia
Sementes
Pereira, Sammy Aquino
Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
topic_facet Visgueiro-do-igapó
Fenologia
Sementes
description This work had as objective to describe the phenology of visgueiro-of-igapó (P. discolor Spruce ex Benth.), correlating it with the ambient factors, well with describing the morphology of seedlings and young plants, beyond evaluating the efficiency of the application of pregerminative treatments, aiming the overcoming of the dormancy of the seeds. It was evidenced that the species flowered and bore fruit since the beginning of the flood, culminating the period of the production of fruits with the maximum period of the flood, what favors the dispersion of the species, which can be characterized as semideciduous. It was observed that the germination is of the epigeous-phanerocotylar type, presenting from 1 to 3 pairs of leaflets, with 14 to 19 pairs of leaflets. The young plant presents woody base, with 5 eophylls, alternating, with a spherical gland in the insertion of the leaflets and a vegetative egg yolk in the lower insertion of each eophylls. Was confirmed that the seeds present seed coat dormancy and that this can be surpassed with the blunts or sandpaper, of the seeds in the proximal portion and proximal and distal portions at the same time. The pregerminative treatment with humid and dry heat, under different temperatures, for some periods of conditioning, had not been effective for the overcoming of the dormancy of seeds of P. discolor
author_additional Ferreira, Sidney Alberto do Nascimento
author_additionalStr Ferreira, Sidney Alberto do Nascimento
format Dissertação
author Pereira, Sammy Aquino
title Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
title_short Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
title_full Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
title_fullStr Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
title_full_unstemmed Fenologia e germinação de sementes de visgueiro-do-igapó (Parkia discolor Spruce ex Benth)
title_sort fenologia e germinação de sementes de visgueiro-do-igapó (parkia discolor spruce ex benth)
publisher Instituto Nacional de Pesquisas da Amazônia - INPA
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/5134
http://lattes.cnpq.br/0625749704569842
_version_ 1787145393218256896
score 11.675608

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