INFLUENCE OF POTASSIUM LEVELS ON ROOT GROWTH AND NUTRIENT UPTAKE OF UPLAND RICE CULTIVARS
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
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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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) |
repository.mail.fl_str_mv |
|
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1808128565352333312 |