Row spacing and seed physiological quality of Crotalaria species

Detalhes bibliográficos
Autor(a) principal: Silva, Bruna Neves Pereira da
Data de Publicação: 2022
Outros Autores: Masetto, Tathiana Elisa, Garcia, Rodrigo Arroyo, Toledo, Mariana Zampar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/72674
Resumo: Crotalaria crops have important uses, such as in green manuring, nematode control, biological nitrogen fixation and sugarcane reform in Savanna areas. Due to its strategic importance, knowledge about crotalaria seed production technology is a relevant factor to ensure the availability of high physiological quality seeds. This study aimed to assess the effect of two row spacings (20 and 40 cm) on the germination and vigor of Crotalaria ochroleuca and Crotalaria spectabilis seeds produced in two crop seasons (2018 and 2019). The experimental design was randomized blocks, with four replications, in a 2 x 2 factorial scheme (spacing x crop season), for each species. The climatic conditions during seed production significantly influenced the physiological quality of the crotalaria seeds. The 2018 harvest, with more abundant rainfall and milder temperatures during flowering, provided more vigorous seeds for both species. The 20 cm spacing was more efficient to produce C. ochroleuca seeds with high physiological performance. Notwithstanding, C. spectabilis seeds showed a higher physiological quality when produced under 40 cm spacing than when produced under denser cultivation. KEYWORDS: Crotalaria ochroleuca, Crotalaria spectabilis, seed vigor.
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spelling Row spacing and seed physiological quality of Crotalaria speciesEspaçamento entre linhas e qualidade fisiológica de sementes de espécies de CroatalariaCrotalaria crops have important uses, such as in green manuring, nematode control, biological nitrogen fixation and sugarcane reform in Savanna areas. Due to its strategic importance, knowledge about crotalaria seed production technology is a relevant factor to ensure the availability of high physiological quality seeds. This study aimed to assess the effect of two row spacings (20 and 40 cm) on the germination and vigor of Crotalaria ochroleuca and Crotalaria spectabilis seeds produced in two crop seasons (2018 and 2019). The experimental design was randomized blocks, with four replications, in a 2 x 2 factorial scheme (spacing x crop season), for each species. The climatic conditions during seed production significantly influenced the physiological quality of the crotalaria seeds. The 2018 harvest, with more abundant rainfall and milder temperatures during flowering, provided more vigorous seeds for both species. The 20 cm spacing was more efficient to produce C. ochroleuca seeds with high physiological performance. Notwithstanding, C. spectabilis seeds showed a higher physiological quality when produced under 40 cm spacing than when produced under denser cultivation. KEYWORDS: Crotalaria ochroleuca, Crotalaria spectabilis, seed vigor.Crotalárias são culturas utilizadas principalmente para a adubação verde, controle de nematoides, fixação biológica de nitrogênio e reforma de canaviais em áreas de Cerrado. Devido à sua importância estratégica, o conhecimento sobre a tecnologia de produção de sementes de crotalária é um fator relevante para garantir a disponibilidade de sementes com elevada qualidade fisiológica. Objetivou-se avaliar o efeito de dois espaçamentos de semeadura (20 e 40 cm) na germinação e vigor de sementes de Crotalaria ochroleuca e Crotalaria spectabilis produzidas em dois anos agrícolas (2018 e 2019). O experimento foi conduzido em blocos casualizados, com quatro repetições, em esquema fatorial 2 x 2 (espaçamento x safra), para cada espécie. As condições climáticas durante a produção de sementes influenciaram significativamente na qualidade fisiológica das sementes de crotalárias. A safra de 2018, com volume de chuvas mais abundante e temperaturas mais amenas durante o florescimento, proporcionou sementes mais vigorosas para ambas as espécies. O espaçamento de 20 cm foi mais eficiente para produzir sementes de C. ochroleuca com elevado desempenho fisiológico; porém, as sementes de C. spectabilis produzidas sob espaçamento de 40 cm apresentaram qualidade fisiológica mais elevada que as produzidas sob cultivo mais adensado. PALAVRAS-CHAVE: Crotalaria ochroleuca, Crotalaria spectabilis, vigor de sementes.Escola de Agronomia - Universidade Federal de Goiás2022-09-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/72674Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 52 (2022); e72674Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e72674Pesquisa Agropecuária Tropical; v. 52 (2022); e726741983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/72674/38727Copyright (c) 2022 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccess Silva, Bruna Neves Pereira daMasetto, Tathiana ElisaGarcia, Rodrigo Arroyo Toledo, Mariana Zampar 2022-09-13T19:23:48Zoai:ojs.revistas.ufg.br:article/72674Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:36.361443Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Row spacing and seed physiological quality of Crotalaria species
Espaçamento entre linhas e qualidade fisiológica de sementes de espécies de Croatalaria
title Row spacing and seed physiological quality of Crotalaria species
spellingShingle Row spacing and seed physiological quality of Crotalaria species
Silva, Bruna Neves Pereira da
title_short Row spacing and seed physiological quality of Crotalaria species
title_full Row spacing and seed physiological quality of Crotalaria species
title_fullStr Row spacing and seed physiological quality of Crotalaria species
title_full_unstemmed Row spacing and seed physiological quality of Crotalaria species
title_sort Row spacing and seed physiological quality of Crotalaria species
author Silva, Bruna Neves Pereira da
author_facet Silva, Bruna Neves Pereira da
Masetto, Tathiana Elisa
Garcia, Rodrigo Arroyo
Toledo, Mariana Zampar
author_role author
author2 Masetto, Tathiana Elisa
Garcia, Rodrigo Arroyo
Toledo, Mariana Zampar
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva, Bruna Neves Pereira da
Masetto, Tathiana Elisa
Garcia, Rodrigo Arroyo
Toledo, Mariana Zampar
description Crotalaria crops have important uses, such as in green manuring, nematode control, biological nitrogen fixation and sugarcane reform in Savanna areas. Due to its strategic importance, knowledge about crotalaria seed production technology is a relevant factor to ensure the availability of high physiological quality seeds. This study aimed to assess the effect of two row spacings (20 and 40 cm) on the germination and vigor of Crotalaria ochroleuca and Crotalaria spectabilis seeds produced in two crop seasons (2018 and 2019). The experimental design was randomized blocks, with four replications, in a 2 x 2 factorial scheme (spacing x crop season), for each species. The climatic conditions during seed production significantly influenced the physiological quality of the crotalaria seeds. The 2018 harvest, with more abundant rainfall and milder temperatures during flowering, provided more vigorous seeds for both species. The 20 cm spacing was more efficient to produce C. ochroleuca seeds with high physiological performance. Notwithstanding, C. spectabilis seeds showed a higher physiological quality when produced under 40 cm spacing than when produced under denser cultivation. KEYWORDS: Crotalaria ochroleuca, Crotalaria spectabilis, seed vigor.
publishDate 2022
dc.date.none.fl_str_mv 2022-09-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/72674
url https://revistas.ufg.br/pat/article/view/72674
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/72674/38727
dc.rights.driver.fl_str_mv Copyright (c) 2022 Pesquisa Agropecuária Tropical
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Pesquisa Agropecuária Tropical
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 52 (2022); e72674
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e72674
Pesquisa Agropecuária Tropical; v. 52 (2022); e72674
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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