Characterization of heat tolerance in wheat cultivars and effects on production components

Detalhes bibliográficos
Autor(a) principal: Pimentel,Adérico Júnior Badaró
Data de Publicação: 2015
Outros Autores: Rocha,João Romero do Amaral Santos de Carvalho, Souza,Moacil Alves de, Ribeiro,Guilherme, Silva,Carolina Ramalho, Oliveira,Isadora Cristina Martins
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ceres
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2015000200191
Resumo: Abstract: There is a need for heat tolerant wheat cultivars adapted to the expansion of cultivation areas in warmer regions due to the high demand of this cereal for human consumption. The objective of this study was to evaluate the effect of high temperatures on grain yield and yield components of wheat and characterize heat tolerant wheat genotypes at different development stages. The genotypes were evaluated in the field with and without heat stress. High temperatures reduced the number of spikelets per spike (21%), number of grains per spike (39%), number of grains per spikelet (23%), 1000-grain weight (27%) and grain yield (79%). Cultivars MGS 1 Aliança, Embrapa 42, IAC 24-Tucuruí and IAC 364-Tucuruí III are the most tolerant to heat stress between the stages double ridge and terminal spikelet; MGS 1 Aliança, BRS 264, IAC 24-Tucuruí, IAC 364-Tucuruí III and VI 98053, between meiosis and anthesis; and BRS 254, IAC-24-Tucuruí, IAC-364-Tucuruí III and VI 98053, between anthesis and physiological maturity. High temperatures reduce grain yield and yield components. The number of grains per spike is the most reduced component under heat stress. The genotypes differed in tolerance to heat stress in different developmental stages.
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spelling Characterization of heat tolerance in wheat cultivars and effects on production componentsTriticum aestivumgenetic improvementabiotic stresshigh temperature Abstract: There is a need for heat tolerant wheat cultivars adapted to the expansion of cultivation areas in warmer regions due to the high demand of this cereal for human consumption. The objective of this study was to evaluate the effect of high temperatures on grain yield and yield components of wheat and characterize heat tolerant wheat genotypes at different development stages. The genotypes were evaluated in the field with and without heat stress. High temperatures reduced the number of spikelets per spike (21%), number of grains per spike (39%), number of grains per spikelet (23%), 1000-grain weight (27%) and grain yield (79%). Cultivars MGS 1 Aliança, Embrapa 42, IAC 24-Tucuruí and IAC 364-Tucuruí III are the most tolerant to heat stress between the stages double ridge and terminal spikelet; MGS 1 Aliança, BRS 264, IAC 24-Tucuruí, IAC 364-Tucuruí III and VI 98053, between meiosis and anthesis; and BRS 254, IAC-24-Tucuruí, IAC-364-Tucuruí III and VI 98053, between anthesis and physiological maturity. High temperatures reduce grain yield and yield components. The number of grains per spike is the most reduced component under heat stress. The genotypes differed in tolerance to heat stress in different developmental stages.Universidade Federal de Viçosa2015-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2015000200191Revista Ceres v.62 n.2 2015reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737X201562020009info:eu-repo/semantics/openAccessPimentel,Adérico Júnior BadaróRocha,João Romero do Amaral Santos de CarvalhoSouza,Moacil Alves deRibeiro,GuilhermeSilva,Carolina RamalhoOliveira,Isadora Cristina Martinseng2015-05-18T00:00:00ZRevista
dc.title.none.fl_str_mv Characterization of heat tolerance in wheat cultivars and effects on production components
title Characterization of heat tolerance in wheat cultivars and effects on production components
spellingShingle Characterization of heat tolerance in wheat cultivars and effects on production components
Pimentel,Adérico Júnior Badaró
Triticum aestivum
genetic improvement
abiotic stress
high temperature
title_short Characterization of heat tolerance in wheat cultivars and effects on production components
title_full Characterization of heat tolerance in wheat cultivars and effects on production components
title_fullStr Characterization of heat tolerance in wheat cultivars and effects on production components
title_full_unstemmed Characterization of heat tolerance in wheat cultivars and effects on production components
title_sort Characterization of heat tolerance in wheat cultivars and effects on production components
author Pimentel,Adérico Júnior Badaró
author_facet Pimentel,Adérico Júnior Badaró
Rocha,João Romero do Amaral Santos de Carvalho
Souza,Moacil Alves de
Ribeiro,Guilherme
Silva,Carolina Ramalho
Oliveira,Isadora Cristina Martins
author_role author
author2 Rocha,João Romero do Amaral Santos de Carvalho
Souza,Moacil Alves de
Ribeiro,Guilherme
Silva,Carolina Ramalho
Oliveira,Isadora Cristina Martins
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Pimentel,Adérico Júnior Badaró
Rocha,João Romero do Amaral Santos de Carvalho
Souza,Moacil Alves de
Ribeiro,Guilherme
Silva,Carolina Ramalho
Oliveira,Isadora Cristina Martins
dc.subject.por.fl_str_mv Triticum aestivum
genetic improvement
abiotic stress
high temperature
topic Triticum aestivum
genetic improvement
abiotic stress
high temperature
dc.description.none.fl_txt_mv Abstract: There is a need for heat tolerant wheat cultivars adapted to the expansion of cultivation areas in warmer regions due to the high demand of this cereal for human consumption. The objective of this study was to evaluate the effect of high temperatures on grain yield and yield components of wheat and characterize heat tolerant wheat genotypes at different development stages. The genotypes were evaluated in the field with and without heat stress. High temperatures reduced the number of spikelets per spike (21%), number of grains per spike (39%), number of grains per spikelet (23%), 1000-grain weight (27%) and grain yield (79%). Cultivars MGS 1 Aliança, Embrapa 42, IAC 24-Tucuruí and IAC 364-Tucuruí III are the most tolerant to heat stress between the stages double ridge and terminal spikelet; MGS 1 Aliança, BRS 264, IAC 24-Tucuruí, IAC 364-Tucuruí III and VI 98053, between meiosis and anthesis; and BRS 254, IAC-24-Tucuruí, IAC-364-Tucuruí III and VI 98053, between anthesis and physiological maturity. High temperatures reduce grain yield and yield components. The number of grains per spike is the most reduced component under heat stress. The genotypes differed in tolerance to heat stress in different developmental stages.
description Abstract: There is a need for heat tolerant wheat cultivars adapted to the expansion of cultivation areas in warmer regions due to the high demand of this cereal for human consumption. The objective of this study was to evaluate the effect of high temperatures on grain yield and yield components of wheat and characterize heat tolerant wheat genotypes at different development stages. The genotypes were evaluated in the field with and without heat stress. High temperatures reduced the number of spikelets per spike (21%), number of grains per spike (39%), number of grains per spikelet (23%), 1000-grain weight (27%) and grain yield (79%). Cultivars MGS 1 Aliança, Embrapa 42, IAC 24-Tucuruí and IAC 364-Tucuruí III are the most tolerant to heat stress between the stages double ridge and terminal spikelet; MGS 1 Aliança, BRS 264, IAC 24-Tucuruí, IAC 364-Tucuruí III and VI 98053, between meiosis and anthesis; and BRS 254, IAC-24-Tucuruí, IAC-364-Tucuruí III and VI 98053, between anthesis and physiological maturity. High temperatures reduce grain yield and yield components. The number of grains per spike is the most reduced component under heat stress. The genotypes differed in tolerance to heat stress in different developmental stages.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2015000200191
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2015000200191
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0034-737X201562020009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa
publisher.none.fl_str_mv Universidade Federal de Viçosa
dc.source.none.fl_str_mv Revista Ceres v.62 n.2 2015
reponame:Revista Ceres
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista Ceres
collection Revista Ceres
repository.name.fl_str_mv
repository.mail.fl_str_mv
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