Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed

Detalhes bibliográficos
Autor(a) principal: Lamas, Fernando Mendes
Data de Publicação: 1999
Outros Autores: Athayde, Manoel Luiz Ferreira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5539
Resumo: With the objective of evaluating the effect of different doses of mepiquat chloride (0, 50, 75, 100 and 125 g/ha), and thidiazuron (0, 45, 60 and 75 g/ha) on the physiological characteristics of cotton seed, an experiment was carried out at UNESP, Jaboticabal, São Paulo State, Brazil. The experimental design was a completely randomized block design and the treatments were arranged in a 5x4 factorial replicated four times. The results showed that in increasing mepiquat chloride doses resulted in higher 100 seed weight and faster emergence indices. As for seedling dry matter, mepiquat chloride and thidiazuron showed antagonic effects. The germination percentage and the hypocotil length were not affected significantly by either chemical, alone or in combination.
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spelling Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seedEfeito do cloreto de mepiquat e do thidiazuron sobre algumas características das sementes do algodoeiroGossypium hirsutum; growth regulator; defoliant; germination; vigourGossypium hirsutum; regulador de crescimento; desfolhante; germinação; vigorWith the objective of evaluating the effect of different doses of mepiquat chloride (0, 50, 75, 100 and 125 g/ha), and thidiazuron (0, 45, 60 and 75 g/ha) on the physiological characteristics of cotton seed, an experiment was carried out at UNESP, Jaboticabal, São Paulo State, Brazil. The experimental design was a completely randomized block design and the treatments were arranged in a 5x4 factorial replicated four times. The results showed that in increasing mepiquat chloride doses resulted in higher 100 seed weight and faster emergence indices. As for seedling dry matter, mepiquat chloride and thidiazuron showed antagonic effects. The germination percentage and the hypocotil length were not affected significantly by either chemical, alone or in combination.Com o objetivo de avaliar o efeito de diferentes doses de cloreto de mepiquat (0, 50, 75, 100 e 125 g/ha) e de thidiazuron (0, 45, 60 e 75 g/ha) sobre as características fisiológicas de sementes de algodoeiro, foi conduzido, na UNESP, Jaboticabal, SP, um experimento inteiramente casualizado, num arranjo fatorial (5x4), com quatro repetições. Com o aumento da dose de cloreto de mepiquat, verificou-se aumento do peso de 100 sementes e do índice de velocidade de emergência de plântulas. O efeito do cloreto de mepiquat e do thidiazuron sobre a matéria seca das plântulas foi antagônico. A porcentagem de germinação e o comprimento do hipocótilo não foram significativamente afetados pelo cloreto de mepiquat, pelo thidiazuron e pela interação entre eles.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraLamas, Fernando MendesAthayde, Manoel Luiz Ferreira1999-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5539Pesquisa Agropecuaria Brasileira; v.34, n.11, nov. 1999; 2015-2019Pesquisa Agropecuária Brasileira; v.34, n.11, nov. 1999; 2015-20191678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5539/2730info:eu-repo/semantics/openAccess2010-07-07T18:18:29Zoai:ojs.seer.sct.embrapa.br:article/5539Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-07-07T18:18:29Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
Efeito do cloreto de mepiquat e do thidiazuron sobre algumas características das sementes do algodoeiro
title Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
spellingShingle Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
Lamas, Fernando Mendes
Gossypium hirsutum; growth regulator; defoliant; germination; vigour
Gossypium hirsutum; regulador de crescimento; desfolhante; germinação; vigor
title_short Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
title_full Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
title_fullStr Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
title_full_unstemmed Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
title_sort Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed
author Lamas, Fernando Mendes
author_facet Lamas, Fernando Mendes
Athayde, Manoel Luiz Ferreira
author_role author
author2 Athayde, Manoel Luiz Ferreira
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Lamas, Fernando Mendes
Athayde, Manoel Luiz Ferreira
dc.subject.por.fl_str_mv Gossypium hirsutum; growth regulator; defoliant; germination; vigour
Gossypium hirsutum; regulador de crescimento; desfolhante; germinação; vigor
topic Gossypium hirsutum; growth regulator; defoliant; germination; vigour
Gossypium hirsutum; regulador de crescimento; desfolhante; germinação; vigor
description With the objective of evaluating the effect of different doses of mepiquat chloride (0, 50, 75, 100 and 125 g/ha), and thidiazuron (0, 45, 60 and 75 g/ha) on the physiological characteristics of cotton seed, an experiment was carried out at UNESP, Jaboticabal, São Paulo State, Brazil. The experimental design was a completely randomized block design and the treatments were arranged in a 5x4 factorial replicated four times. The results showed that in increasing mepiquat chloride doses resulted in higher 100 seed weight and faster emergence indices. As for seedling dry matter, mepiquat chloride and thidiazuron showed antagonic effects. The germination percentage and the hypocotil length were not affected significantly by either chemical, alone or in combination.
publishDate 1999
dc.date.none.fl_str_mv 1999-11-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5539
url https://seer.sct.embrapa.br/index.php/pab/article/view/5539
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5539/2730
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.34, n.11, nov. 1999; 2015-2019
Pesquisa Agropecuária Brasileira; v.34, n.11, nov. 1999; 2015-2019
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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