Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels

Detalhes bibliográficos
Autor(a) principal: BARBOSA,ANDRÉA RODRIGUES
Data de Publicação: 1999
Outros Autores: YAMAMOTO,KIKYO, VALIO,IVANY F. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Botany
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000500008
Resumo: Vochysia tucanorum Mart. (Vochysiaceae) is a very widely distributed species in the cerrado and forests in Brazil, from the State of Bahia to Paraná. Its seed germination was analysed under eight treatments using different conditions of light and temperature. Up to 73 days, at least ca. 93% of the seeds germinated in all treatments, except under alternating temperatures of 35°/10°C (62%). Light enhanced germination, except under constant temperature of 25°C when seeds are not photoblastic. At this temperature, the highest percentage of germination was found. Initial vegetative growth was analysed by comparing the effects of shading, by means of different percentages of full daylight (100%, 45%, 10.6%, 4.8%), and soils from cerrado and forest. During 123 days, no mortality was recorded and cotyledons persisted on the seedlings of all treatments. In general, the seedlings of V. tucanorum were found to be more or less indifferent to the soil from cerrado or forest and shading seems to promote height increment. However, total dry mass was larger under a radiation of 45% full daylight and smaller under extreme conditions (100% or 4.8% full daylight).
id SBSP-1_91868f1ec9b85e0295b75c1e2d1c5eef
oai_identifier_str oai:scielo:S0100-84041999000500008
network_acronym_str SBSP-1
network_name_str Brazilian Journal of Botany
repository_id_str
spelling Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levelsGerminationseedling growthshadingVochysia tucanorumsoilcerradoVochysia tucanorum Mart. (Vochysiaceae) is a very widely distributed species in the cerrado and forests in Brazil, from the State of Bahia to Paraná. Its seed germination was analysed under eight treatments using different conditions of light and temperature. Up to 73 days, at least ca. 93% of the seeds germinated in all treatments, except under alternating temperatures of 35°/10°C (62%). Light enhanced germination, except under constant temperature of 25°C when seeds are not photoblastic. At this temperature, the highest percentage of germination was found. Initial vegetative growth was analysed by comparing the effects of shading, by means of different percentages of full daylight (100%, 45%, 10.6%, 4.8%), and soils from cerrado and forest. During 123 days, no mortality was recorded and cotyledons persisted on the seedlings of all treatments. In general, the seedlings of V. tucanorum were found to be more or less indifferent to the soil from cerrado or forest and shading seems to promote height increment. However, total dry mass was larger under a radiation of 45% full daylight and smaller under extreme conditions (100% or 4.8% full daylight).Sociedade Botânica de São Paulo1999-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000500008Brazilian Journal of Botany v.22 suppl.2 1999reponame:Brazilian Journal of Botanyinstname:Sociedade Botânica de São Paulo (SBSP)instacron:SBSP10.1590/S0100-84041999000500008info:eu-repo/semantics/openAccessBARBOSA,ANDRÉA RODRIGUESYAMAMOTO,KIKYOVALIO,IVANY F. M.eng2000-02-22T00:00:00Zoai:scielo:S0100-84041999000500008Revistahttps://www.scielo.br/j/rbb/ONGhttps://old.scielo.br/oai/scielo-oai.phpbrazbot@gmail.com||brazbot@gmail.com1806-99590100-8404opendoar:2000-02-22T00:00Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP)false
dc.title.none.fl_str_mv Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
title Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
spellingShingle Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
BARBOSA,ANDRÉA RODRIGUES
Germination
seedling growth
shading
Vochysia tucanorum
soil
cerrado
title_short Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
title_full Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
title_fullStr Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
title_full_unstemmed Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
title_sort Effect of light and temperature on germination and early growth of Vochysia tucanorum Mart., Vochysiaceae, in cerrado and forest soil under different radiation levels
author BARBOSA,ANDRÉA RODRIGUES
author_facet BARBOSA,ANDRÉA RODRIGUES
YAMAMOTO,KIKYO
VALIO,IVANY F. M.
author_role author
author2 YAMAMOTO,KIKYO
VALIO,IVANY F. M.
author2_role author
author
dc.contributor.author.fl_str_mv BARBOSA,ANDRÉA RODRIGUES
YAMAMOTO,KIKYO
VALIO,IVANY F. M.
dc.subject.por.fl_str_mv Germination
seedling growth
shading
Vochysia tucanorum
soil
cerrado
topic Germination
seedling growth
shading
Vochysia tucanorum
soil
cerrado
description Vochysia tucanorum Mart. (Vochysiaceae) is a very widely distributed species in the cerrado and forests in Brazil, from the State of Bahia to Paraná. Its seed germination was analysed under eight treatments using different conditions of light and temperature. Up to 73 days, at least ca. 93% of the seeds germinated in all treatments, except under alternating temperatures of 35°/10°C (62%). Light enhanced germination, except under constant temperature of 25°C when seeds are not photoblastic. At this temperature, the highest percentage of germination was found. Initial vegetative growth was analysed by comparing the effects of shading, by means of different percentages of full daylight (100%, 45%, 10.6%, 4.8%), and soils from cerrado and forest. During 123 days, no mortality was recorded and cotyledons persisted on the seedlings of all treatments. In general, the seedlings of V. tucanorum were found to be more or less indifferent to the soil from cerrado or forest and shading seems to promote height increment. However, total dry mass was larger under a radiation of 45% full daylight and smaller under extreme conditions (100% or 4.8% full daylight).
publishDate 1999
dc.date.none.fl_str_mv 1999-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000500008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000500008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-84041999000500008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Botânica de São Paulo
publisher.none.fl_str_mv Sociedade Botânica de São Paulo
dc.source.none.fl_str_mv Brazilian Journal of Botany v.22 suppl.2 1999
reponame:Brazilian Journal of Botany
instname:Sociedade Botânica de São Paulo (SBSP)
instacron:SBSP
instname_str Sociedade Botânica de São Paulo (SBSP)
instacron_str SBSP
institution SBSP
reponame_str Brazilian Journal of Botany
collection Brazilian Journal of Botany
repository.name.fl_str_mv Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP)
repository.mail.fl_str_mv brazbot@gmail.com||brazbot@gmail.com
_version_ 1754734837412921344