Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/38450 |
Resumo: | The application of fungicides in different operating conditions is a usual practice for maintaining the productive potential in sugarcane varieties considered susceptible to orange rust, however, the physiological effects provided by the different application methods are unknown. The objective of this study was to evaluate the photosynthetic responses (gas exchange and chlorophyll content) in the SP81-3250 sugarcane variety, in function of different operational conditions of the aerial and ground application of fungicide in the orange rust control. Two application of fungicides of the chemical groups Strobilurins and Triazoles were carried out in the experimental units in different treatments. In the aerial applications, two application rates (30 and 40 L ha-1) and three nozzle orientations (0º, 90º and 135º) and in the ground application was used 200 L ha-1 and flat fan spray nozzles with air induction (AI11004-VS). Gas exchange evaluations were performed with an IRGA and amount of chlorophyll a and b with a chlorophyll meter. Data were analyzed using Student's t-test for independent samples, at 0.05 significance. The aerial application provided better photosynthetic responses and chlorophyll a and b contents in leaf limb compared to ground application. Significant differences were detected in gas exchange and chlorophyll content between application rates and angulation of the spray nozzles in the boom. Fungicide applications provided increments of more than 19 t ha-1 compared to the control, depending on the spraying technique employed. Aerial application with 30 L ha-1 and 0° of deflection is a viable option to provide safer applications as a function of the larger droplet size. |
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Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust controlAlterações fisiológicas na cana-de-acúcar em função de aplicações aéreas e terrestre de fungicida no controle da ferrugem alaranjada Application technologyLeaf gas exchangeIRGASaccharum sppPuccinia kuehniiAgricultural SciencesThe application of fungicides in different operating conditions is a usual practice for maintaining the productive potential in sugarcane varieties considered susceptible to orange rust, however, the physiological effects provided by the different application methods are unknown. The objective of this study was to evaluate the photosynthetic responses (gas exchange and chlorophyll content) in the SP81-3250 sugarcane variety, in function of different operational conditions of the aerial and ground application of fungicide in the orange rust control. Two application of fungicides of the chemical groups Strobilurins and Triazoles were carried out in the experimental units in different treatments. In the aerial applications, two application rates (30 and 40 L ha-1) and three nozzle orientations (0º, 90º and 135º) and in the ground application was used 200 L ha-1 and flat fan spray nozzles with air induction (AI11004-VS). Gas exchange evaluations were performed with an IRGA and amount of chlorophyll a and b with a chlorophyll meter. Data were analyzed using Student's t-test for independent samples, at 0.05 significance. The aerial application provided better photosynthetic responses and chlorophyll a and b contents in leaf limb compared to ground application. Significant differences were detected in gas exchange and chlorophyll content between application rates and angulation of the spray nozzles in the boom. Fungicide applications provided increments of more than 19 t ha-1 compared to the control, depending on the spraying technique employed. Aerial application with 30 L ha-1 and 0° of deflection is a viable option to provide safer applications as a function of the larger droplet size.A aplicação de fungicidas em diferentes condições operacionais é uma prática usual para manter o potencial genético em variedades de cana-de-açúcar consideradas susceptíveis à ferrugem laranja, porém os efeitosfisiológicos proporcionados pelos diferentes métodos de aplicação são desconhecidos. O objetivo deste estudo foi avaliar as respostas fotossintéticas (troca gasosa e teor de clorofila) na variedade de cana-de-açúcar SP81-3250, em função de diferentes condições operacionais de aplicação aérea e terrestre de fungicida no controle da ferrugem alaranjada. Duas aplicações de fungicidas dos grupos químicos Estrobilurinas e Triazóis foram realizadas nas unidades experimentais em diferentes tratamentos. Nas aplicações aéreas, foram utilizadas duas taxas de aplicação (30 e 40 L ha-1) e três orientações do ângulo dos bicos (0º, 90º e 135º) e na aplicação terrestre 200 L ha-1 e pontas de pulverização de jato plano com induçãode ar (AI11004 -VS). As avaliações de trocas gasosas foram realizadas com analisador de gás IRGA e a quantidade de clorofila a e b com um medidor de clorofila. Os dados foram analisados utilizando o teste t de Student para amostras independentes, com um valor de 0,05 de significancia. A aplicação aérea proporcionou melhores respostas fotossintéticas e os teores de clorofila a e b no membro foliar em comparação com a aplicação terrestre. Foram detectadas diferenças significativas na troca gasosa e no teor de clorofila entre as taxas de aplicação e a angulação dos bicos de pulverização na barra. As aplicações de fungicidas proporcionaram incrementos de mais de 19 t ha-1 em relação ao tratamento controle, dependendo da técnica de pulverização empregada. A aplicação aérea com 30 L ha-1 e 0° de deflexão é uma opção viável para proporcionar aplicações mais seguras em função do maior tamanho das gotas.EDUFU2018-05-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/3845010.14393/BJ-v34n3a2018-38450Bioscience Journal ; Vol. 34 No. 3 (2018): May/June; 603-614Bioscience Journal ; v. 34 n. 3 (2018): MAI/JUNE; 603-6141981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/38450/22208Brazil; ContemporaryCopyright (c) 2018 Thales Cassemiro Alves, João Paulo Arantes Rodrigues da Cunha, Ernane Miranda Lemes, Renata Leandra de Almeida Castro, João Eduardo Ribeiro da Silva, César Henrique Souza Zandonadihttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAlves, Thales CassemiroRodrigues da Cunha, João Paulo ArantesLemes, Ernane MirandaCastro, Renata Leandra de AlmeidaSilva, João Eduardo Ribeiro daZandonadi, César Henrique Souza2022-02-14T22:39:37Zoai:ojs.www.seer.ufu.br:article/38450Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-02-14T22:39:37Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control Alterações fisiológicas na cana-de-acúcar em função de aplicações aéreas e terrestre de fungicida no controle da ferrugem alaranjada |
title |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
spellingShingle |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control Alves, Thales Cassemiro Application technology Leaf gas exchange IRGA Saccharum spp Puccinia kuehnii Agricultural Sciences |
title_short |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
title_full |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
title_fullStr |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
title_full_unstemmed |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
title_sort |
Physiological changes in sugarcane in function of air and ground application of fungicide for orange rust control |
author |
Alves, Thales Cassemiro |
author_facet |
Alves, Thales Cassemiro Rodrigues da Cunha, João Paulo Arantes Lemes, Ernane Miranda Castro, Renata Leandra de Almeida Silva, João Eduardo Ribeiro da Zandonadi, César Henrique Souza |
author_role |
author |
author2 |
Rodrigues da Cunha, João Paulo Arantes Lemes, Ernane Miranda Castro, Renata Leandra de Almeida Silva, João Eduardo Ribeiro da Zandonadi, César Henrique Souza |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Alves, Thales Cassemiro Rodrigues da Cunha, João Paulo Arantes Lemes, Ernane Miranda Castro, Renata Leandra de Almeida Silva, João Eduardo Ribeiro da Zandonadi, César Henrique Souza |
dc.subject.por.fl_str_mv |
Application technology Leaf gas exchange IRGA Saccharum spp Puccinia kuehnii Agricultural Sciences |
topic |
Application technology Leaf gas exchange IRGA Saccharum spp Puccinia kuehnii Agricultural Sciences |
description |
The application of fungicides in different operating conditions is a usual practice for maintaining the productive potential in sugarcane varieties considered susceptible to orange rust, however, the physiological effects provided by the different application methods are unknown. The objective of this study was to evaluate the photosynthetic responses (gas exchange and chlorophyll content) in the SP81-3250 sugarcane variety, in function of different operational conditions of the aerial and ground application of fungicide in the orange rust control. Two application of fungicides of the chemical groups Strobilurins and Triazoles were carried out in the experimental units in different treatments. In the aerial applications, two application rates (30 and 40 L ha-1) and three nozzle orientations (0º, 90º and 135º) and in the ground application was used 200 L ha-1 and flat fan spray nozzles with air induction (AI11004-VS). Gas exchange evaluations were performed with an IRGA and amount of chlorophyll a and b with a chlorophyll meter. Data were analyzed using Student's t-test for independent samples, at 0.05 significance. The aerial application provided better photosynthetic responses and chlorophyll a and b contents in leaf limb compared to ground application. Significant differences were detected in gas exchange and chlorophyll content between application rates and angulation of the spray nozzles in the boom. Fungicide applications provided increments of more than 19 t ha-1 compared to the control, depending on the spraying technique employed. Aerial application with 30 L ha-1 and 0° of deflection is a viable option to provide safer applications as a function of the larger droplet size. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-30 |
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.ufu.br/index.php/biosciencejournal/article/view/38450 10.14393/BJ-v34n3a2018-38450 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/38450 |
identifier_str_mv |
10.14393/BJ-v34n3a2018-38450 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/38450/22208 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 34 No. 3 (2018): May/June; 603-614 Bioscience Journal ; v. 34 n. 3 (2018): MAI/JUNE; 603-614 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069078292070400 |