Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528 |
Resumo: | The rice is large-scale cultivated in a wide range of edaphic and climatic conditions, compounding an alternative source for the increase in food production worldwide. The present study assessed the traits related to productivity, in rice genotypes under conditions of irrigation and water stress, in Gurupi municipality, Southern region from Tocantins state. We evaluated agronomic attributes (number of tillers and panicles, number of grains per panicle and productivity), besides the index of drought sensitivity. The selection of superior genotypes and traits that may serve for the differentiation among the genotypes in this stress condition is essential to create more tolerant materials. Among the most productive genotypes, we highlight the ‘Quebra Cacho’ that besides presenting relatively high productivities for both culture conditions, also presented a low index of drought sensitivity, ratifying itself as one of the most productive ones and adapted to this culture condition. The number of tillers by square meter did not present differences among the genotypes in both environmental conditions, but in some cases, there was a decrease under the condition of water stress. The number of grains per panicle evidenced great variation between the environments, with a decrease under the stress condition. |
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Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528water stressindex of drought sensitivityyeldOryza sativa L.water stressindex of drought sensitivityyeldOryza sativa L.Melhoramento VegetalThe rice is large-scale cultivated in a wide range of edaphic and climatic conditions, compounding an alternative source for the increase in food production worldwide. The present study assessed the traits related to productivity, in rice genotypes under conditions of irrigation and water stress, in Gurupi municipality, Southern region from Tocantins state. We evaluated agronomic attributes (number of tillers and panicles, number of grains per panicle and productivity), besides the index of drought sensitivity. The selection of superior genotypes and traits that may serve for the differentiation among the genotypes in this stress condition is essential to create more tolerant materials. Among the most productive genotypes, we highlight the ‘Quebra Cacho’ that besides presenting relatively high productivities for both culture conditions, also presented a low index of drought sensitivity, ratifying itself as one of the most productive ones and adapted to this culture condition. The number of tillers by square meter did not present differences among the genotypes in both environmental conditions, but in some cases, there was a decrease under the condition of water stress. The number of grains per panicle evidenced great variation between the environments, with a decrease under the stress condition.The rice is large-scale cultivated in a wide range of edaphic and climatic conditions, compounding an alternative source for the increase in food production worldwide. The present study assessed the traits related to productivity, in rice genotypes under conditions of irrigation and water stress, in Gurupi municipality, Southern region from Tocantins state. We evaluated agronomic attributes (number of tillers and panicles, number of grains per panicle and productivity), besides the index of drought sensitivity. The selection of superior genotypes and traits that may serve for the differentiation among the genotypes in this stress condition is essential to create more tolerant materials. Among the most productive genotypes, we highlight the ‘Quebra Cacho’ that besides presenting relatively high productivities for both culture conditions, also presented a low index of drought sensitivity, ratifying itself as one of the most productive ones and adapted to this culture condition. The number of tillers by square meter did not present differences among the genotypes in both environmental conditions, but in some cases, there was a decrease under the condition of water stress. The number of grains per panicle evidenced great variation between the environments, with a decrease under the stress condition.Universidade Estadual de Maringá2010-11-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/552810.4025/actasciagron.v32i4.5528Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 715-719Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 715-7191807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528/5528Ahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528/5528Terra, Thiago Gledson RiosLeal, Tarcísio Castro Alves de BarrosRangel, Paulo Hideo NakanoBarros, Hélio BandeiraSantos, Antonio Clementino dosinfo:eu-repo/semantics/openAccess2022-11-23T18:38:11Zoai:periodicos.uem.br/ojs:article/5528Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:11Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
title |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
spellingShingle |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 Terra, Thiago Gledson Rios water stress index of drought sensitivity yeld Oryza sativa L. water stress index of drought sensitivity yeld Oryza sativa L. Melhoramento Vegetal |
title_short |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
title_full |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
title_fullStr |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
title_full_unstemmed |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
title_sort |
Tolerance to drought in rice cultivars in Southern Cerrado area from Tocantins state, Brazil - doi: 10.4025/actasciagron.v32i4.5528 |
author |
Terra, Thiago Gledson Rios |
author_facet |
Terra, Thiago Gledson Rios Leal, Tarcísio Castro Alves de Barros Rangel, Paulo Hideo Nakano Barros, Hélio Bandeira Santos, Antonio Clementino dos |
author_role |
author |
author2 |
Leal, Tarcísio Castro Alves de Barros Rangel, Paulo Hideo Nakano Barros, Hélio Bandeira Santos, Antonio Clementino dos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Terra, Thiago Gledson Rios Leal, Tarcísio Castro Alves de Barros Rangel, Paulo Hideo Nakano Barros, Hélio Bandeira Santos, Antonio Clementino dos |
dc.subject.por.fl_str_mv |
water stress index of drought sensitivity yeld Oryza sativa L. water stress index of drought sensitivity yeld Oryza sativa L. Melhoramento Vegetal |
topic |
water stress index of drought sensitivity yeld Oryza sativa L. water stress index of drought sensitivity yeld Oryza sativa L. Melhoramento Vegetal |
description |
The rice is large-scale cultivated in a wide range of edaphic and climatic conditions, compounding an alternative source for the increase in food production worldwide. The present study assessed the traits related to productivity, in rice genotypes under conditions of irrigation and water stress, in Gurupi municipality, Southern region from Tocantins state. We evaluated agronomic attributes (number of tillers and panicles, number of grains per panicle and productivity), besides the index of drought sensitivity. The selection of superior genotypes and traits that may serve for the differentiation among the genotypes in this stress condition is essential to create more tolerant materials. Among the most productive genotypes, we highlight the ‘Quebra Cacho’ that besides presenting relatively high productivities for both culture conditions, also presented a low index of drought sensitivity, ratifying itself as one of the most productive ones and adapted to this culture condition. The number of tillers by square meter did not present differences among the genotypes in both environmental conditions, but in some cases, there was a decrease under the condition of water stress. The number of grains per panicle evidenced great variation between the environments, with a decrease under the stress condition. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528 10.4025/actasciagron.v32i4.5528 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528 |
identifier_str_mv |
10.4025/actasciagron.v32i4.5528 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528/5528A http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5528/5528 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 715-719 Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 715-719 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1750315304866545664 |