INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS

Detalhes bibliográficos
Autor(a) principal: Almeida Carmeis Filho, Antonio Carlos de [UNESP]
Data de Publicação: 2017
Outros Autores: Costa Crusciol, Carlos Alexandre [UNESP], Nascente, Adriano Stephan, Mauad, Munir, Garcia, Rodrigo Arroyo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1983-21252017v30n104rc
http://hdl.handle.net/11449/162484
Resumo: Potassium (K) is an essential nutrient for upland rice growth, but little information on the effects of K on root growth and nutrient uptake capacity of upland rice is found. Therefore, an experiment was conducted under greenhouse conditions to evaluate the influence of soil K levels on root growth and nutrient uptake of four upland rice cultivars. A completely randomized experimental design, in a 4x4 factorial scheme (4 levels of K: 20, 40, 80, and 160 mg dm(-3); 4 cultivars: Caiapo, BRS-Primavera, IAC-202, and Maravilha) was used, with four replications. Based on regression equations, the highest values of root length density would be found with 136 mg dm-3 of K. The root diameter and dry matter, shoot dry matter and shoot K concentration increased linearly with the increasing K rates. The shoot K concentration of the upland rice cultivars did not differ. The increased level of K in the soil reduced the shoot Ca concentration of intermediate and modern cultivars, and the shoot Mg concentration of all cultivars. The potassium fertilization increased the plant growth, but the magnitude of this effect varied according to the cultivar.
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spelling INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARSOryza sativa L.Root lengthPlant nutritionPotassium (K) is an essential nutrient for upland rice growth, but little information on the effects of K on root growth and nutrient uptake capacity of upland rice is found. Therefore, an experiment was conducted under greenhouse conditions to evaluate the influence of soil K levels on root growth and nutrient uptake of four upland rice cultivars. A completely randomized experimental design, in a 4x4 factorial scheme (4 levels of K: 20, 40, 80, and 160 mg dm(-3); 4 cultivars: Caiapo, BRS-Primavera, IAC-202, and Maravilha) was used, with four replications. Based on regression equations, the highest values of root length density would be found with 136 mg dm-3 of K. The root diameter and dry matter, shoot dry matter and shoot K concentration increased linearly with the increasing K rates. The shoot K concentration of the upland rice cultivars did not differ. The increased level of K in the soil reduced the shoot Ca concentration of intermediate and modern cultivars, and the shoot Mg concentration of all cultivars. The potassium fertilization increased the plant growth, but the magnitude of this effect varied according to the cultivar.Univ Estadual Paulista, Coll Agr Sci, Dept Crop Sci, Botucatu, SP, BrazilEmpresa Brasileira Pesquisa Agr, Rice & Beans Res Ctr, Santo Antonio De Goias, Go, BrazilFundacao Univ Fed Grande Dourados, Coll Agr Sci, Dourados, MS, BrazilEmpresa Brasileira Pesquisa Agr, Western Reg Agr, Dourados, MS, BrazilUniv Estadual Paulista, Coll Agr Sci, Dept Crop Sci, Botucatu, SP, BrazilUniv Fed Rural Semi-arido-ufersaUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Fundacao Univ Fed Grande DouradosAlmeida Carmeis Filho, Antonio Carlos de [UNESP]Costa Crusciol, Carlos Alexandre [UNESP]Nascente, Adriano StephanMauad, MunirGarcia, Rodrigo Arroyo2018-11-26T17:18:30Z2018-11-26T17:18:30Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article32-44application/pdfhttp://dx.doi.org/10.1590/1983-21252017v30n104rcRevista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 30, n. 1, p. 32-44, 2017.0100-316Xhttp://hdl.handle.net/11449/16248410.1590/1983-21252017v30n104rcS1983-21252017000100032WOS:000394168900004S1983-21252017000100032.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Caatingainfo:eu-repo/semantics/openAccess2024-04-30T18:07:06Zoai:repositorio.unesp.br:11449/162484Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:48:43.386499Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
title INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
spellingShingle INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
Almeida Carmeis Filho, Antonio Carlos de [UNESP]
Oryza sativa L.
Root length
Plant nutrition
title_short INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
title_full INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
title_fullStr INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
title_full_unstemmed INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
title_sort INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
author Almeida Carmeis Filho, Antonio Carlos de [UNESP]
author_facet Almeida Carmeis Filho, Antonio Carlos de [UNESP]
Costa Crusciol, Carlos Alexandre [UNESP]
Nascente, Adriano Stephan
Mauad, Munir
Garcia, Rodrigo Arroyo
author_role author
author2 Costa Crusciol, Carlos Alexandre [UNESP]
Nascente, Adriano Stephan
Mauad, Munir
Garcia, Rodrigo Arroyo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Fundacao Univ Fed Grande Dourados
dc.contributor.author.fl_str_mv Almeida Carmeis Filho, Antonio Carlos de [UNESP]
Costa Crusciol, Carlos Alexandre [UNESP]
Nascente, Adriano Stephan
Mauad, Munir
Garcia, Rodrigo Arroyo
dc.subject.por.fl_str_mv Oryza sativa L.
Root length
Plant nutrition
topic Oryza sativa L.
Root length
Plant nutrition
description Potassium (K) is an essential nutrient for upland rice growth, but little information on the effects of K on root growth and nutrient uptake capacity of upland rice is found. Therefore, an experiment was conducted under greenhouse conditions to evaluate the influence of soil K levels on root growth and nutrient uptake of four upland rice cultivars. A completely randomized experimental design, in a 4x4 factorial scheme (4 levels of K: 20, 40, 80, and 160 mg dm(-3); 4 cultivars: Caiapo, BRS-Primavera, IAC-202, and Maravilha) was used, with four replications. Based on regression equations, the highest values of root length density would be found with 136 mg dm-3 of K. The root diameter and dry matter, shoot dry matter and shoot K concentration increased linearly with the increasing K rates. The shoot K concentration of the upland rice cultivars did not differ. The increased level of K in the soil reduced the shoot Ca concentration of intermediate and modern cultivars, and the shoot Mg concentration of all cultivars. The potassium fertilization increased the plant growth, but the magnitude of this effect varied according to the cultivar.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
2018-11-26T17:18:30Z
2018-11-26T17:18:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1983-21252017v30n104rc
Revista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 30, n. 1, p. 32-44, 2017.
0100-316X
http://hdl.handle.net/11449/162484
10.1590/1983-21252017v30n104rc
S1983-21252017000100032
WOS:000394168900004
S1983-21252017000100032.pdf
url http://dx.doi.org/10.1590/1983-21252017v30n104rc
http://hdl.handle.net/11449/162484
identifier_str_mv Revista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 30, n. 1, p. 32-44, 2017.
0100-316X
10.1590/1983-21252017v30n104rc
S1983-21252017000100032
WOS:000394168900004
S1983-21252017000100032.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Caatinga
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 32-44
application/pdf
dc.publisher.none.fl_str_mv Univ Fed Rural Semi-arido-ufersa
publisher.none.fl_str_mv Univ Fed Rural Semi-arido-ufersa
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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