Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , |
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/6479 |
Resumo: | Apple (Malus domestica Borkh.) trees, cultivars Gala and Fuji, were sprayed at full bloom with thidiazuron (TDZ) at doses of 0, 5, 10, or 20 g ha-1 of a.i. in order to evaluate its effects on plant growth and development, return bloom, fruit set, nutrition, and fruit yield. Fruit set increased with TDZ dose in 'Gala' but not in 'Fuji'. TDZ did not affect fruit yield in any cultivar. In 'Gala', the return bloom was reduced in about 50% at TDZ doses of 10 or 20 g ha-1. TDZ increased shoot growth in both cultivars. In leaves, TDZ decreased the concentration of Ca and Mg in 'Gala' and of Mg in 'Fuji', but did not affect the chlorophyll content, leaf area, length, width, and dry mass per cm2 regardless of cultivar. In fruits, the effect of TDZ varied according to the portion evaluated. Highest doses of TDZ decreased the concentration of Ca and K in 'Gala' and of K in 'Fuji' in the entire fruits (flesh + skin); in the skin, highest doses of TDZ reduced the levels of N, Ca, and Mg in both cultivars, in addition to the level of K in 'Fuji'. |
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Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of applesEfeito do thidiazuron no crescimento, no florescimento, na frutificação e na nutrição em macieirasMalus domestica; cytokinin; phenylurea; calcium; fruit yield; pollination; plant developmentMalus domestica; citocinina; difenil uréia; cálcio; rendimento de frutos; polinização; desenvolvimento das plantas Apple (Malus domestica Borkh.) trees, cultivars Gala and Fuji, were sprayed at full bloom with thidiazuron (TDZ) at doses of 0, 5, 10, or 20 g ha-1 of a.i. in order to evaluate its effects on plant growth and development, return bloom, fruit set, nutrition, and fruit yield. Fruit set increased with TDZ dose in 'Gala' but not in 'Fuji'. TDZ did not affect fruit yield in any cultivar. In 'Gala', the return bloom was reduced in about 50% at TDZ doses of 10 or 20 g ha-1. TDZ increased shoot growth in both cultivars. In leaves, TDZ decreased the concentration of Ca and Mg in 'Gala' and of Mg in 'Fuji', but did not affect the chlorophyll content, leaf area, length, width, and dry mass per cm2 regardless of cultivar. In fruits, the effect of TDZ varied according to the portion evaluated. Highest doses of TDZ decreased the concentration of Ca and K in 'Gala' and of K in 'Fuji' in the entire fruits (flesh + skin); in the skin, highest doses of TDZ reduced the levels of N, Ca, and Mg in both cultivars, in addition to the level of K in 'Fuji'.Macieiras (Malus domestica Borkh.), cultivares Gala e Fuji, foram pulverizadas na plena floração com thidiazuron (TDZ) nas doses de 0, 5, 10 e 20 g ha-1 de ingrediente ativo com o objetivo de serem avaliadas quanto ao crescimento, florescimento, nutrição, frutificação e rendimento de frutos. A frutificação efetiva aumentou com a dose de TDZ na cultivar Gala, mas não na cultivar Fuji. Os tratamentos não afetaram o rendimento de frutos em nenhuma cultivar. Na cultivar Gala o florescimento no ano posterior ao da aplicação de TDZ foi reduzido em cerca de 50% nas doses de 10 e 20 g ha-1. O TDZ promoveu aumento no crescimento dos ramos do ano em ambas as cultivares. Nas folhas, o aumento nas doses de TDZ reduziu os teores de Ca e Mg na cultivar Gala, e de Mg na cultivar Fuji mas não afetou o conteúdo de clorofila, área, comprimento, diâmetro e massa seca cm-2 da folha, em ambas as cultivares. Em frutos inteiros (polpa + casca), o aumento nas doses de TDZ reduziu os teores de Ca e K na cultivar Gala, e os teores de K na cultivar Fuji. Na casca dos frutos, o aumento dos níveis de TDZ reduziu a concentração de N, Ca e Mg nas duas cultivares, além de K na cultivar Fuji.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirado Amarante, Cassandro Vidal TalaminiErnani, Paulo RobertoBlum, Luiz Eduardo BassayMegguer, Clarice Aparecida2002-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6479Pesquisa Agropecuaria Brasileira; v.37, n.10, out. 2002; 1365-1371Pesquisa Agropecuária Brasileira; v.37, n.10, out. 2002; 1365-13711678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6479/3536info:eu-repo/semantics/openAccess2014-07-22T17:39:22Zoai:ojs.seer.sct.embrapa.br:article/6479Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-22T17:39:22Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples Efeito do thidiazuron no crescimento, no florescimento, na frutificação e na nutrição em macieiras |
title |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
spellingShingle |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples do Amarante, Cassandro Vidal Talamini Malus domestica; cytokinin; phenylurea; calcium; fruit yield; pollination; plant development Malus domestica; citocinina; difenil uréia; cálcio; rendimento de frutos; polinização; desenvolvimento das plantas |
title_short |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
title_full |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
title_fullStr |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
title_full_unstemmed |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
title_sort |
Thidiazuron effects on shoot growth, return bloom, fruit set and nutrition of apples |
author |
do Amarante, Cassandro Vidal Talamini |
author_facet |
do Amarante, Cassandro Vidal Talamini Ernani, Paulo Roberto Blum, Luiz Eduardo Bassay Megguer, Clarice Aparecida |
author_role |
author |
author2 |
Ernani, Paulo Roberto Blum, Luiz Eduardo Bassay Megguer, Clarice Aparecida |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
do Amarante, Cassandro Vidal Talamini Ernani, Paulo Roberto Blum, Luiz Eduardo Bassay Megguer, Clarice Aparecida |
dc.subject.por.fl_str_mv |
Malus domestica; cytokinin; phenylurea; calcium; fruit yield; pollination; plant development Malus domestica; citocinina; difenil uréia; cálcio; rendimento de frutos; polinização; desenvolvimento das plantas |
topic |
Malus domestica; cytokinin; phenylurea; calcium; fruit yield; pollination; plant development Malus domestica; citocinina; difenil uréia; cálcio; rendimento de frutos; polinização; desenvolvimento das plantas |
description |
Apple (Malus domestica Borkh.) trees, cultivars Gala and Fuji, were sprayed at full bloom with thidiazuron (TDZ) at doses of 0, 5, 10, or 20 g ha-1 of a.i. in order to evaluate its effects on plant growth and development, return bloom, fruit set, nutrition, and fruit yield. Fruit set increased with TDZ dose in 'Gala' but not in 'Fuji'. TDZ did not affect fruit yield in any cultivar. In 'Gala', the return bloom was reduced in about 50% at TDZ doses of 10 or 20 g ha-1. TDZ increased shoot growth in both cultivars. In leaves, TDZ decreased the concentration of Ca and Mg in 'Gala' and of Mg in 'Fuji', but did not affect the chlorophyll content, leaf area, length, width, and dry mass per cm2 regardless of cultivar. In fruits, the effect of TDZ varied according to the portion evaluated. Highest doses of TDZ decreased the concentration of Ca and K in 'Gala' and of K in 'Fuji' in the entire fruits (flesh + skin); in the skin, highest doses of TDZ reduced the levels of N, Ca, and Mg in both cultivars, in addition to the level of K in 'Fuji'. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-10-01 |
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/6479 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6479 |
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/6479/3536 |
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.37, n.10, out. 2002; 1365-1371 Pesquisa Agropecuária Brasileira; v.37, n.10, out. 2002; 1365-1371 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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1793416689962975232 |