Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.

Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.

Bidens pilosa L.. (Compositae) one among the World's worst weeds, produces open globose heads of desmochorous achenes disposed radially around the receptacle. These achenes are more numerous (about 60%) in the inferior hemisphere and their length decreases, while their width increases, along an...

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Bibliographic Details
Main Author: Marinis, G. de.
Format: Artículo
Language:Portugués
Published: Instituto Interamericano de Cooperación para la Agricultura (IICA) 2022
Subjects:
BIDENS PILOSA
PROPAGACION VEGETATIVA
GERMINACION
BRASIL
VEGETATIVE PROPAGATION
GERMINATION
Sede Central
Online Access:https://repositorio.catie.ac.cr/handle/11554/12009
id RepoCATIE12009
record_format dspace
spelling RepoCATIE120092022-09-21T16:05:43Z Organización del capítulo fructífero y heterocarpia en Bidens pilosa L. Organization of fructiferous heads and heterocarpy of Bidens pilosa L Organizacao do capítulo frutífero e heterocarpia em Bidens pilosa L. Marinis, G. de. BIDENS PILOSA PROPAGACION VEGETATIVA GERMINACION BRASIL BIDENS PILOSA VEGETATIVE PROPAGATION GERMINATION Sede Central Bidens pilosa L.. (Compositae) one among the World's worst weeds, produces open globose heads of desmochorous achenes disposed radially around the receptacle. These achenes are more numerous (about 60%) in the inferior hemisphere and their length decreases, while their width increases, along an apex — basis gradient. The achenes nearer to the basis (about 20%) are much shorter and differ from the others also in shape and in ornamentations. These brachycamous achenes remain connected to the receptacle longer than the other ones and showed a very low percentage of germination, in common laboratory conditions. B. pilosa, therefore, shows a certain degree of heterocarpy, perhaps associated with the process of dispersal and germina-tion of its achenes. 2022-09-20T22:59:57Z 2022-09-20T22:59:57Z 1983-04 Artículo https://repositorio.catie.ac.cr/handle/11554/12009 openAccess pt Turrialba; Vol. 33, no. 2 6 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA)
institution Centro Agronómico Tropical de Investigación y Enseñanza
collection Repositorio CATIE
language Portugués
topic BIDENS PILOSA
PROPAGACION VEGETATIVA
GERMINACION
BRASIL
BIDENS PILOSA
VEGETATIVE PROPAGATION
GERMINATION
Sede Central
spellingShingle BIDENS PILOSA
PROPAGACION VEGETATIVA
GERMINACION
BRASIL
BIDENS PILOSA
VEGETATIVE PROPAGATION
GERMINATION
Sede Central
Marinis, G. de.
Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
description Bidens pilosa L.. (Compositae) one among the World's worst weeds, produces open globose heads of desmochorous achenes disposed radially around the receptacle. These achenes are more numerous (about 60%) in the inferior hemisphere and their length decreases, while their width increases, along an apex — basis gradient. The achenes nearer to the basis (about 20%) are much shorter and differ from the others also in shape and in ornamentations. These brachycamous achenes remain connected to the receptacle longer than the other ones and showed a very low percentage of germination, in common laboratory conditions. B. pilosa, therefore, shows a certain degree of heterocarpy, perhaps associated with the process of dispersal and germina-tion of its achenes.
format Artículo
author Marinis, G. de.
author_facet Marinis, G. de.
author_sort Marinis, G. de.
title Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
title_short Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
title_full Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
title_fullStr Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
title_full_unstemmed Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
title_sort organización del capítulo fructífero y heterocarpia en bidens pilosa l.
publisher Instituto Interamericano de Cooperación para la Agricultura (IICA)
publishDate 2022
url https://repositorio.catie.ac.cr/handle/11554/12009
work_keys_str_mv AT marinisgde organizaciondelcapitulofructiferoyheterocarpiaenbidenspilosal
AT marinisgde organizationoffructiferousheadsandheterocarpyofbidenspilosal
AT marinisgde organizacaodocapitulofrutiferoeheterocarpiaembidenspilosal
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