NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY

Detalhes bibliográficos
Autor(a) principal: Anicésio, Ellen Cristina Alves de
Data de Publicação: 2018
Outros Autores: Bonfim-Silva, Edna Maria, Silva, Tonny José Araújo da, Pacheco, Adriano Bicioni
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/6347
Resumo: Safflower crops is usually intended for production of seeds to oil extraction. The objective of this work was to evaluate the chlorophyll index, biometric characteristics and water use efficiency of safflower plants grown under different nitrogen and potassium rates and controlled soil water tension. The experiment was conducted in a greenhouse, in pots containing 8 dm3 of a Oxisol. A complete randomized block experimental design in a 5x5 factorial arrangement was used, with four replications, consisting of five nitrogen rates (0, 60, 120, 180 and 240 mg dm-3) and five potassium rates (0, 50, 100, 150 and 200 mg dm-3). The safflower number of leaves, stem diameter, chlorophyll index, number of capitula, shoot, root and total dry weights, water consumption and water use efficiency were evaluated. Data were subjected to analysis of variance (F test) at 5% of probability and to polynomial regression. The nitrogen and potassium fertilization, as independent factors, affected the safflower plants. The chlorophyll index, biometric characteristics and water use efficiency of safflower showed better responses under nitrogen rates of 82 to 168 mg dm-3. The responses of chlorophyll index, biometric characteristics and water use efficiency of safflower increased 10 to 60% with potassium fertilization.
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spelling NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCYNITROGÊNIO E POTÁSSIO EM CÁRTAMO: ÍNDICE DE CLOROFILA, CARACTERÍSTICAS BIOMÉTRICAS E USO DA ÁGUACarthamus tinctorius L.. Fertilization. Plant production.Carthamus tinctorius L.. Adubação. Produção vegetal.Safflower crops is usually intended for production of seeds to oil extraction. The objective of this work was to evaluate the chlorophyll index, biometric characteristics and water use efficiency of safflower plants grown under different nitrogen and potassium rates and controlled soil water tension. The experiment was conducted in a greenhouse, in pots containing 8 dm3 of a Oxisol. A complete randomized block experimental design in a 5x5 factorial arrangement was used, with four replications, consisting of five nitrogen rates (0, 60, 120, 180 and 240 mg dm-3) and five potassium rates (0, 50, 100, 150 and 200 mg dm-3). The safflower number of leaves, stem diameter, chlorophyll index, number of capitula, shoot, root and total dry weights, water consumption and water use efficiency were evaluated. Data were subjected to analysis of variance (F test) at 5% of probability and to polynomial regression. The nitrogen and potassium fertilization, as independent factors, affected the safflower plants. The chlorophyll index, biometric characteristics and water use efficiency of safflower showed better responses under nitrogen rates of 82 to 168 mg dm-3. The responses of chlorophyll index, biometric characteristics and water use efficiency of safflower increased 10 to 60% with potassium fertilization.O cártamo destina-se à produção de grãos para a obtenção de óleo vegetal. Objetivou-se avaliar o índice de clorofila, as características biométricas e a eficiência no uso da água de plantas de cártamo sob doses de nitrogênio e potássio. O experimento foi conduzido em casa de vegetação, em vasos contendo 8 dm3 de um Latossolo Vermelho. O delineamento experimental foi blocos casualizados, com esquema fatorial 5x5 correspondente a cinco doses de nitrogênio (0, 60, 120, 180 e 240 mg dm-3) e cinco doses de potássio (0, 50, 100, 150 e 200 mg dm-3), com quatro repetições. Avaliou-se o número de folhas, diâmetro de caule, índice de clorofila, número de capítulos, massa seca da parte aérea, massa seca de raízes, massa seca total, consumo de água e eficiência no uso da água. Os dados foram submetidos a 5% de probabilidade de erro a análise de variância pelo teste F e regressão polinomial. O índice de clorofila, as características biométricas e a eficiência no uso da água das plantas de cártamo apresentaram melhores respostas nas doses de nitrogênio entre 82 a 168 mg dm-3. A adubação potássica nas plantas de cártamo proporcionou respostas crescentes com incrementos de 10 a 60% para o índice de clorofila, nas características biométricas e na eficiência de uso da água. As respostas a adubação com nitrogênio e potássio no cártamo ocorrem com efeito isolado.Universidade Federal Rural do Semi-Árido2018-04-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/634710.1590/1983-21252018v31n219rcREVISTA CAATINGA; Vol. 31 No. 2 (2018); 424-433Revista Caatinga; v. 31 n. 2 (2018); 424-4331983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/6347/pdfCopyright (c) 2018 Revista Caatingainfo:eu-repo/semantics/openAccessAnicésio, Ellen Cristina Alves deBonfim-Silva, Edna MariaSilva, Tonny José Araújo daPacheco, Adriano Bicioni2023-07-20T12:51:28Zoai:ojs.periodicos.ufersa.edu.br:article/6347Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:27.090379Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
NITROGÊNIO E POTÁSSIO EM CÁRTAMO: ÍNDICE DE CLOROFILA, CARACTERÍSTICAS BIOMÉTRICAS E USO DA ÁGUA
title NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
spellingShingle NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
Anicésio, Ellen Cristina Alves de
Carthamus tinctorius L.. Fertilization. Plant production.
Carthamus tinctorius L.. Adubação. Produção vegetal.
title_short NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
title_full NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
title_fullStr NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
title_full_unstemmed NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
title_sort NITROGEN AND POTASSIUM IN SAFFLOWER: CHLOROPHYLL INDEX, BIOMETRIC CHARACTERISTICS AND WATER USE EFFICIENCY
author Anicésio, Ellen Cristina Alves de
author_facet Anicésio, Ellen Cristina Alves de
Bonfim-Silva, Edna Maria
Silva, Tonny José Araújo da
Pacheco, Adriano Bicioni
author_role author
author2 Bonfim-Silva, Edna Maria
Silva, Tonny José Araújo da
Pacheco, Adriano Bicioni
author2_role author
author
author
dc.contributor.author.fl_str_mv Anicésio, Ellen Cristina Alves de
Bonfim-Silva, Edna Maria
Silva, Tonny José Araújo da
Pacheco, Adriano Bicioni
dc.subject.por.fl_str_mv Carthamus tinctorius L.. Fertilization. Plant production.
Carthamus tinctorius L.. Adubação. Produção vegetal.
topic Carthamus tinctorius L.. Fertilization. Plant production.
Carthamus tinctorius L.. Adubação. Produção vegetal.
description Safflower crops is usually intended for production of seeds to oil extraction. The objective of this work was to evaluate the chlorophyll index, biometric characteristics and water use efficiency of safflower plants grown under different nitrogen and potassium rates and controlled soil water tension. The experiment was conducted in a greenhouse, in pots containing 8 dm3 of a Oxisol. A complete randomized block experimental design in a 5x5 factorial arrangement was used, with four replications, consisting of five nitrogen rates (0, 60, 120, 180 and 240 mg dm-3) and five potassium rates (0, 50, 100, 150 and 200 mg dm-3). The safflower number of leaves, stem diameter, chlorophyll index, number of capitula, shoot, root and total dry weights, water consumption and water use efficiency were evaluated. Data were subjected to analysis of variance (F test) at 5% of probability and to polynomial regression. The nitrogen and potassium fertilization, as independent factors, affected the safflower plants. The chlorophyll index, biometric characteristics and water use efficiency of safflower showed better responses under nitrogen rates of 82 to 168 mg dm-3. The responses of chlorophyll index, biometric characteristics and water use efficiency of safflower increased 10 to 60% with potassium fertilization.
publishDate 2018
dc.date.none.fl_str_mv 2018-04-06
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://periodicos.ufersa.edu.br/caatinga/article/view/6347
10.1590/1983-21252018v31n219rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/6347
identifier_str_mv 10.1590/1983-21252018v31n219rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/6347/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 31 No. 2 (2018); 424-433
Revista Caatinga; v. 31 n. 2 (2018); 424-433
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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