Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation

Detalhes bibliográficos
Autor(a) principal: ORTIZ,Daniel
Data de Publicação: 2021
Outros Autores: MORENO,Flavio, DÍEZ,Maria Claudia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Amazonica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100001
Resumo: ABSTRACT In the Amazon region, agroforestry systems (AFSs) are recommended as a sustainable production alternative for local communities. A common component in Amazonian AFSs are tropical fruit trees, which can form the canopy or grow in the understory. In this study, we evaluated the effect of high radiation on photosynthesis, growth and seedling survival of four Amazonian fruit-tree species: Theobroma cacao, Eugenia stipitata, Inga edulis and Psidium guajava. Growth, chlorophyll fluorescence, gas exchange, and leaf pigments were measured in seedlings of each species grown for 12 months inside shade houses with low (8%), medium (30%) and high relative illumination (100%). Eugenia stipitata and T. cacao had the lowest acclimation capacity to high solar radiation, followed by I. edulis. Therefore, these species must be grown under intermediate light levels in early growth stages, to protect them from direct sunlight. In contrast, P. guajava seedlings demonstrated high tolerance to elevated radiation, therefore, this species can be planted under full sunlight.
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spelling Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiationacclimationagroforestry systemscarotenoidschloroplastsphotosystem IIABSTRACT In the Amazon region, agroforestry systems (AFSs) are recommended as a sustainable production alternative for local communities. A common component in Amazonian AFSs are tropical fruit trees, which can form the canopy or grow in the understory. In this study, we evaluated the effect of high radiation on photosynthesis, growth and seedling survival of four Amazonian fruit-tree species: Theobroma cacao, Eugenia stipitata, Inga edulis and Psidium guajava. Growth, chlorophyll fluorescence, gas exchange, and leaf pigments were measured in seedlings of each species grown for 12 months inside shade houses with low (8%), medium (30%) and high relative illumination (100%). Eugenia stipitata and T. cacao had the lowest acclimation capacity to high solar radiation, followed by I. edulis. Therefore, these species must be grown under intermediate light levels in early growth stages, to protect them from direct sunlight. In contrast, P. guajava seedlings demonstrated high tolerance to elevated radiation, therefore, this species can be planted under full sunlight.Instituto Nacional de Pesquisas da Amazônia2021-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100001Acta Amazonica v.51 n.1 2021reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-4392202000752info:eu-repo/semantics/openAccessORTIZ,DanielMORENO,FlavioDÍEZ,Maria Claudiaeng2021-02-26T00:00:00Zoai:scielo:S0044-59672021000100001Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2021-02-26T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.none.fl_str_mv Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
title Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
spellingShingle Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
ORTIZ,Daniel
acclimation
agroforestry systems
carotenoids
chloroplasts
photosystem II
title_short Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
title_full Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
title_fullStr Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
title_full_unstemmed Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
title_sort Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
author ORTIZ,Daniel
author_facet ORTIZ,Daniel
MORENO,Flavio
DÍEZ,Maria Claudia
author_role author
author2 MORENO,Flavio
DÍEZ,Maria Claudia
author2_role author
author
dc.contributor.author.fl_str_mv ORTIZ,Daniel
MORENO,Flavio
DÍEZ,Maria Claudia
dc.subject.por.fl_str_mv acclimation
agroforestry systems
carotenoids
chloroplasts
photosystem II
topic acclimation
agroforestry systems
carotenoids
chloroplasts
photosystem II
description ABSTRACT In the Amazon region, agroforestry systems (AFSs) are recommended as a sustainable production alternative for local communities. A common component in Amazonian AFSs are tropical fruit trees, which can form the canopy or grow in the understory. In this study, we evaluated the effect of high radiation on photosynthesis, growth and seedling survival of four Amazonian fruit-tree species: Theobroma cacao, Eugenia stipitata, Inga edulis and Psidium guajava. Growth, chlorophyll fluorescence, gas exchange, and leaf pigments were measured in seedlings of each species grown for 12 months inside shade houses with low (8%), medium (30%) and high relative illumination (100%). Eugenia stipitata and T. cacao had the lowest acclimation capacity to high solar radiation, followed by I. edulis. Therefore, these species must be grown under intermediate light levels in early growth stages, to protect them from direct sunlight. In contrast, P. guajava seedlings demonstrated high tolerance to elevated radiation, therefore, this species can be planted under full sunlight.
publishDate 2021
dc.date.none.fl_str_mv 2021-03-01
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=S0044-59672021000100001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1809-4392202000752
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 Instituto Nacional de Pesquisas da Amazônia
publisher.none.fl_str_mv Instituto Nacional de Pesquisas da Amazônia
dc.source.none.fl_str_mv Acta Amazonica v.51 n.1 2021
reponame:Acta Amazonica
instname:Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron:INPA
instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Acta Amazonica
collection Acta Amazonica
repository.name.fl_str_mv Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)
repository.mail.fl_str_mv acta@inpa.gov.br||acta@inpa.gov.br
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