Pre-emergence herbicides affect seedling emergence of tropical forest tree species
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11676-016-0348-5 http://hdl.handle.net/11449/173835 |
Resumo: | Testing techniques to reduce weed infestation is a crucial step in developing direct tree seeding systems. The use of pre-emergence herbicides may be an alternative to manual weeding techniques, but so far, information on how they affect the seeds of native tree species is scarce. We established a greenhouse experiment to evaluate the effects of four pre-emergence herbicides (atrazine, diuron, isoxaflutole and oxyfluorfen) on weed suppression and seedling emergence and early growth of seven tropical forest tree species (Annona coriacea Mart., Citharexylum myrianthum Cham., Cordia ecalyculata Vell., Peltophorum dubium (Spreng.) Taub., Psidium guajava L., Pterogyne nitens Tul. and Schinus terebinthifolia Raddi). The experimental design was a randomized complete block design with five treatments and five replicates. The treatments consisted of a single dose of each pre-emergence herbicide and a control. Throughout the 60 days after sowing we evaluated weed cover and seedling emergence and early growth of tree species. Overall, our results suggest that all tested herbicides reduced weed cover; however, they also negatively affected tree species seedling emergence. Of the four herbicides tested, atrazine and diuron showed the greatest effects on tree seedling emergence, oxyfluorfen was least aggressive towards native species and isoxaflutole was most effective in weed control. Native tree species varied in their responses to herbicides, indicating that future experiments should increase the number of species tested as well as investigate how seed traits can affect the species responses to different herbicides. |
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Pre-emergence herbicides affect seedling emergence of tropical forest tree speciesDirect seedingPre-emergence herbicidesSeedling emergenceTropical seasonal forestsWeed controlTesting techniques to reduce weed infestation is a crucial step in developing direct tree seeding systems. The use of pre-emergence herbicides may be an alternative to manual weeding techniques, but so far, information on how they affect the seeds of native tree species is scarce. We established a greenhouse experiment to evaluate the effects of four pre-emergence herbicides (atrazine, diuron, isoxaflutole and oxyfluorfen) on weed suppression and seedling emergence and early growth of seven tropical forest tree species (Annona coriacea Mart., Citharexylum myrianthum Cham., Cordia ecalyculata Vell., Peltophorum dubium (Spreng.) Taub., Psidium guajava L., Pterogyne nitens Tul. and Schinus terebinthifolia Raddi). The experimental design was a randomized complete block design with five treatments and five replicates. The treatments consisted of a single dose of each pre-emergence herbicide and a control. Throughout the 60 days after sowing we evaluated weed cover and seedling emergence and early growth of tree species. Overall, our results suggest that all tested herbicides reduced weed cover; however, they also negatively affected tree species seedling emergence. Of the four herbicides tested, atrazine and diuron showed the greatest effects on tree seedling emergence, oxyfluorfen was least aggressive towards native species and isoxaflutole was most effective in weed control. Native tree species varied in their responses to herbicides, indicating that future experiments should increase the number of species tested as well as investigate how seed traits can affect the species responses to different herbicides.Forest Science Department Agronomic Sciences College-FCA São Paulo State University – UNESP, P.O. Box 237Forest Science Department Agronomic Sciences College-FCA São Paulo State University – UNESP, P.O. Box 237Universidade Estadual Paulista (Unesp)de Souza, Diego Cerveira [UNESP]Engel, Vera Lex [UNESP]2018-12-11T17:07:59Z2018-12-11T17:07:59Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article733-739application/pdfhttp://dx.doi.org/10.1007/s11676-016-0348-5Journal of Forestry Research, v. 28, n. 4, p. 733-739, 2017.1993-06071007-662Xhttp://hdl.handle.net/11449/17383510.1007/s11676-016-0348-52-s2.0-849977649752-s2.0-84997764975.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Forestry Researchinfo:eu-repo/semantics/openAccess2024-04-30T13:11:27Zoai:repositorio.unesp.br:11449/173835Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:26:48.279637Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
title |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
spellingShingle |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species de Souza, Diego Cerveira [UNESP] Direct seeding Pre-emergence herbicides Seedling emergence Tropical seasonal forests Weed control |
title_short |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
title_full |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
title_fullStr |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
title_full_unstemmed |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
title_sort |
Pre-emergence herbicides affect seedling emergence of tropical forest tree species |
author |
de Souza, Diego Cerveira [UNESP] |
author_facet |
de Souza, Diego Cerveira [UNESP] Engel, Vera Lex [UNESP] |
author_role |
author |
author2 |
Engel, Vera Lex [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Souza, Diego Cerveira [UNESP] Engel, Vera Lex [UNESP] |
dc.subject.por.fl_str_mv |
Direct seeding Pre-emergence herbicides Seedling emergence Tropical seasonal forests Weed control |
topic |
Direct seeding Pre-emergence herbicides Seedling emergence Tropical seasonal forests Weed control |
description |
Testing techniques to reduce weed infestation is a crucial step in developing direct tree seeding systems. The use of pre-emergence herbicides may be an alternative to manual weeding techniques, but so far, information on how they affect the seeds of native tree species is scarce. We established a greenhouse experiment to evaluate the effects of four pre-emergence herbicides (atrazine, diuron, isoxaflutole and oxyfluorfen) on weed suppression and seedling emergence and early growth of seven tropical forest tree species (Annona coriacea Mart., Citharexylum myrianthum Cham., Cordia ecalyculata Vell., Peltophorum dubium (Spreng.) Taub., Psidium guajava L., Pterogyne nitens Tul. and Schinus terebinthifolia Raddi). The experimental design was a randomized complete block design with five treatments and five replicates. The treatments consisted of a single dose of each pre-emergence herbicide and a control. Throughout the 60 days after sowing we evaluated weed cover and seedling emergence and early growth of tree species. Overall, our results suggest that all tested herbicides reduced weed cover; however, they also negatively affected tree species seedling emergence. Of the four herbicides tested, atrazine and diuron showed the greatest effects on tree seedling emergence, oxyfluorfen was least aggressive towards native species and isoxaflutole was most effective in weed control. Native tree species varied in their responses to herbicides, indicating that future experiments should increase the number of species tested as well as investigate how seed traits can affect the species responses to different herbicides. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-12-11T17:07:59Z 2018-12-11T17:07:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s11676-016-0348-5 Journal of Forestry Research, v. 28, n. 4, p. 733-739, 2017. 1993-0607 1007-662X http://hdl.handle.net/11449/173835 10.1007/s11676-016-0348-5 2-s2.0-84997764975 2-s2.0-84997764975.pdf |
url |
http://dx.doi.org/10.1007/s11676-016-0348-5 http://hdl.handle.net/11449/173835 |
identifier_str_mv |
Journal of Forestry Research, v. 28, n. 4, p. 733-739, 2017. 1993-0607 1007-662X 10.1007/s11676-016-0348-5 2-s2.0-84997764975 2-s2.0-84997764975.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Forestry Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
733-739 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129521908449280 |