HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)

Detalhes bibliográficos
Autor(a) principal: Smiderle, Oscar José
Data de Publicação: 2008
Outros Autores: Dias, Carlos Tadeu dos Santos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/3487
Resumo: Harvest time is one of most important factors influencing rice seed characteristics for purpose of either planting or milling. With the objective to determine a proper harvesting  time, irrigated rice seeds of cultivar BRS Roraima were harvested at 15, 22, 29, 36, 43 and 50 days after flowering (DAF), and assessed according to humidity, viability, dry mass of 1,000 seeds, whole grain yield, productivity and storability. Seeds harvested 29 DAF showed high quality and its productivity was equivalent to the subsequent periods. Seeds harvested 50 DAF showed good performance, except for whole grain yield. Harvests 15 and 22 DAF were unsuitable, reducing the physiologic quality of seeds, mill efficiency and high initial humidity. The adequate harvest time for cultivar BRS Roraima is between 29 and 43 DAF, when seeds present higher yield, dry mass, whole grain yield, physiologic quality and storability.KEY-WORDS: Physiologic quality; whole grain; humidity.
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spelling HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)ÉPOCA DE COLHEITA E QUALIDADE FISIOLÓGICA DE SEMENTES EM ARROZ IRRIGADO (Oryza sativa cv. BRS RORAIMA)Physiologic qualitywhole grainhumidityQualidade fisiológicagrãos inteirosumidade Harvest time is one of most important factors influencing rice seed characteristics for purpose of either planting or milling. With the objective to determine a proper harvesting  time, irrigated rice seeds of cultivar BRS Roraima were harvested at 15, 22, 29, 36, 43 and 50 days after flowering (DAF), and assessed according to humidity, viability, dry mass of 1,000 seeds, whole grain yield, productivity and storability. Seeds harvested 29 DAF showed high quality and its productivity was equivalent to the subsequent periods. Seeds harvested 50 DAF showed good performance, except for whole grain yield. Harvests 15 and 22 DAF were unsuitable, reducing the physiologic quality of seeds, mill efficiency and high initial humidity. The adequate harvest time for cultivar BRS Roraima is between 29 and 43 DAF, when seeds present higher yield, dry mass, whole grain yield, physiologic quality and storability.KEY-WORDS: Physiologic quality; whole grain; humidity. A época de colheita é um dos fatores mais importantes que influenciam as características da semente de arroz, seja para semeadura ou para consumo. Com o objetivo de determinar a época adequada de colheita de arroz irrigado, para a cultivar BRS Roraima, sementes foram colhidas aos 15, 22, 29, 36, 43 e 50 dias após o florescimento (DAF) e avaliadas quanto à umidade, viabilidade, massa seca de 1.000 sementes, rendimento de grãos inteiros, produtividade e armazenabilidade. As sementes colhidas aos 29 DAF tiveram alta qualidade e a produtividade foi equivalente à dos períodos subseqüentes. Aquelas provenientes da colheita aos 50 DAF exibiram bom desempenho, exceto em rendimento de grãos inteiros. Colheitas realizadas aos 15 e 22 DAF são impróprias, reduzindo a qualidade fisiológica das sementes, o rendimento de engenho e a alta umidade inicial. A época adequada de colheita para a cultivar BRS Roraima está entre 29 e 43 DAF, quando suas sementes apresentam maior produtividade, massa seca, rendimento de grãos inteiros, qualidade fisiológica e armazenabilidade.PALAVRAS-CHAVE: Qualidade fisiológica; grãos inteiros, umidade. Escola de Agronomia - Universidade Federal de Goiás2008-09-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/x-forcedownloadhttps://revistas.ufg.br/pat/article/view/3487Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 38, n. 3, Jul./Sep. 2008; 188-194Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 38, n. 3, jul./set. 2008; 188-194Pesquisa Agropecuária Tropical; v. 38, n. 3, jul./set. 2008; 188-1941983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/3487/4037Smiderle, Oscar JoséDias, Carlos Tadeu dos Santosinfo:eu-repo/semantics/openAccess2020-02-27T00:02:49Zoai:ojs.revistas.ufg.br:article/3487Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:34.113333Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
ÉPOCA DE COLHEITA E QUALIDADE FISIOLÓGICA DE SEMENTES EM ARROZ IRRIGADO (Oryza sativa cv. BRS RORAIMA)
title HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
spellingShingle HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
Smiderle, Oscar José
Physiologic quality
whole grain
humidity
Qualidade fisiológica
grãos inteiros
umidade
title_short HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
title_full HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
title_fullStr HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
title_full_unstemmed HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
title_sort HARVEST TIME AND PHYSIOLOGIC QUALITY OF SEEDS IN IRRIGATED RICE (Oryza sativa cv. BRS RORAIMA)
author Smiderle, Oscar José
author_facet Smiderle, Oscar José
Dias, Carlos Tadeu dos Santos
author_role author
author2 Dias, Carlos Tadeu dos Santos
author2_role author
dc.contributor.author.fl_str_mv Smiderle, Oscar José
Dias, Carlos Tadeu dos Santos
dc.subject.por.fl_str_mv Physiologic quality
whole grain
humidity
Qualidade fisiológica
grãos inteiros
umidade
topic Physiologic quality
whole grain
humidity
Qualidade fisiológica
grãos inteiros
umidade
description Harvest time is one of most important factors influencing rice seed characteristics for purpose of either planting or milling. With the objective to determine a proper harvesting  time, irrigated rice seeds of cultivar BRS Roraima were harvested at 15, 22, 29, 36, 43 and 50 days after flowering (DAF), and assessed according to humidity, viability, dry mass of 1,000 seeds, whole grain yield, productivity and storability. Seeds harvested 29 DAF showed high quality and its productivity was equivalent to the subsequent periods. Seeds harvested 50 DAF showed good performance, except for whole grain yield. Harvests 15 and 22 DAF were unsuitable, reducing the physiologic quality of seeds, mill efficiency and high initial humidity. The adequate harvest time for cultivar BRS Roraima is between 29 and 43 DAF, when seeds present higher yield, dry mass, whole grain yield, physiologic quality and storability.KEY-WORDS: Physiologic quality; whole grain; humidity.
publishDate 2008
dc.date.none.fl_str_mv 2008-09-24
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/3487
url https://revistas.ufg.br/pat/article/view/3487
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/3487/4037
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/x-forcedownload
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]; v. 38, n. 3, Jul./Sep. 2008; 188-194
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 38, n. 3, jul./set. 2008; 188-194
Pesquisa Agropecuária Tropical; v. 38, n. 3, jul./set. 2008; 188-194
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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