Evaluation of physiological traits in upland rice for adaptation to no-tillage system.
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/663096 https://doi.org/10.1590/S1677-04202009000200004 |
Resumo: | In the cerrado region of Brazil, no-tillage is an alternative management practice to conserve soil and reduce cost of crop production. However, many studies have been showed that there is a decrease in the yield when upland rice is cropped in this system. Therefore, there is a need that new breeding initiatives introgress favorable traits into upland rice for no-tillage adaptation. Key traits include faster emergence, ability to germinate when deep seeded, faster root development, and early canopy closure during the vegetative stages. All those traits can be summarized as "early vigor". So, the objective of this study was to evaluate physiological traits of four contrasting parental upland rice cultivars to verify their adaptation to no-tillage system. A greenhouse experiment with four upland rice cultivars (BRS Primavera, BRS Curinga, BRS Soberana, and Douradão) were planted at three different dates and growth at potential conditions. Development stages, total dry matter, leaf area, leaf dry matter, leaf length, leaf elongation rate and leaf duration were measured and calculated. Based on physiological traits, the four cultivars showed differences in the growth cycle. However, for biomass and leaf area growth and leaf expansion traits they did not differ significantly, probably being the lack of genetic "early vigor" a characteristic of the modern cultivars. The growth and development pattern was significantly affected by planting dates and not by cultivars. |
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Evaluation of physiological traits in upland rice for adaptation to no-tillage system.Expansão de folhasArrozOryza sativaÁrea foliarBiomassaPlantio diretoCerradoIn the cerrado region of Brazil, no-tillage is an alternative management practice to conserve soil and reduce cost of crop production. However, many studies have been showed that there is a decrease in the yield when upland rice is cropped in this system. Therefore, there is a need that new breeding initiatives introgress favorable traits into upland rice for no-tillage adaptation. Key traits include faster emergence, ability to germinate when deep seeded, faster root development, and early canopy closure during the vegetative stages. All those traits can be summarized as "early vigor". So, the objective of this study was to evaluate physiological traits of four contrasting parental upland rice cultivars to verify their adaptation to no-tillage system. A greenhouse experiment with four upland rice cultivars (BRS Primavera, BRS Curinga, BRS Soberana, and Douradão) were planted at three different dates and growth at potential conditions. Development stages, total dry matter, leaf area, leaf dry matter, leaf length, leaf elongation rate and leaf duration were measured and calculated. Based on physiological traits, the four cultivars showed differences in the growth cycle. However, for biomass and leaf area growth and leaf expansion traits they did not differ significantly, probably being the lack of genetic "early vigor" a characteristic of the modern cultivars. The growth and development pattern was significantly affected by planting dates and not by cultivars.ALEXANDRE BRYAN HEINEMANN, CNPAF; LUIS FERNANDO STONE, CNPAF; NAND KUMAR FAGERIA, CNPAF; LUCAS M. DE CASTRO, UFG.HEINEMANN, A. B.STONE, L. F.FAGERIA, N. K.CASTRO, L. M. de2020-07-14T11:11:34Z2020-07-14T11:11:34Z2010-04-052009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrazilian Journal of Plant Physiology, v. 21, n. 2, p. 113-122, 2009.http://www.alice.cnptia.embrapa.br/alice/handle/doc/663096https://doi.org/10.1590/S1677-04202009000200004enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2020-07-14T11:11:51Zoai:www.alice.cnptia.embrapa.br:doc/663096Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542020-07-14T11:11:51falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542020-07-14T11:11:51Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
title |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
spellingShingle |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. HEINEMANN, A. B. Expansão de folhas Arroz Oryza sativa Área foliar Biomassa Plantio direto Cerrado |
title_short |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
title_full |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
title_fullStr |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
title_full_unstemmed |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
title_sort |
Evaluation of physiological traits in upland rice for adaptation to no-tillage system. |
author |
HEINEMANN, A. B. |
author_facet |
HEINEMANN, A. B. STONE, L. F. FAGERIA, N. K. CASTRO, L. M. de |
author_role |
author |
author2 |
STONE, L. F. FAGERIA, N. K. CASTRO, L. M. de |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
ALEXANDRE BRYAN HEINEMANN, CNPAF; LUIS FERNANDO STONE, CNPAF; NAND KUMAR FAGERIA, CNPAF; LUCAS M. DE CASTRO, UFG. |
dc.contributor.author.fl_str_mv |
HEINEMANN, A. B. STONE, L. F. FAGERIA, N. K. CASTRO, L. M. de |
dc.subject.por.fl_str_mv |
Expansão de folhas Arroz Oryza sativa Área foliar Biomassa Plantio direto Cerrado |
topic |
Expansão de folhas Arroz Oryza sativa Área foliar Biomassa Plantio direto Cerrado |
description |
In the cerrado region of Brazil, no-tillage is an alternative management practice to conserve soil and reduce cost of crop production. However, many studies have been showed that there is a decrease in the yield when upland rice is cropped in this system. Therefore, there is a need that new breeding initiatives introgress favorable traits into upland rice for no-tillage adaptation. Key traits include faster emergence, ability to germinate when deep seeded, faster root development, and early canopy closure during the vegetative stages. All those traits can be summarized as "early vigor". So, the objective of this study was to evaluate physiological traits of four contrasting parental upland rice cultivars to verify their adaptation to no-tillage system. A greenhouse experiment with four upland rice cultivars (BRS Primavera, BRS Curinga, BRS Soberana, and Douradão) were planted at three different dates and growth at potential conditions. Development stages, total dry matter, leaf area, leaf dry matter, leaf length, leaf elongation rate and leaf duration were measured and calculated. Based on physiological traits, the four cultivars showed differences in the growth cycle. However, for biomass and leaf area growth and leaf expansion traits they did not differ significantly, probably being the lack of genetic "early vigor" a characteristic of the modern cultivars. The growth and development pattern was significantly affected by planting dates and not by cultivars. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2010-04-05 2020-07-14T11:11:34Z 2020-07-14T11:11:34Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Brazilian Journal of Plant Physiology, v. 21, n. 2, p. 113-122, 2009. http://www.alice.cnptia.embrapa.br/alice/handle/doc/663096 https://doi.org/10.1590/S1677-04202009000200004 |
identifier_str_mv |
Brazilian Journal of Plant Physiology, v. 21, n. 2, p. 113-122, 2009. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/663096 https://doi.org/10.1590/S1677-04202009000200004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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