Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments

Wheat (Triticum aestivum L.) is a major staple food crop grown worldwide on >220 million ha. Climate change is regarded to have severe effect on wheat yields, and unpredictable drought stress is one of the most important factors. Breeding can significantly contribute to the mitigation of climate...

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Autores: Crespo Herrera, L.A., Crossa, J., Huerta-Espino, J., Vargas Hernández, M., Mondal, S., Velu, G., Payne, T.S., Braun, H.J., Singh, R.P.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:México
Institución:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositorio:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/19786
Acceso en línea:https://hdl.handle.net/10883/19786
Access Level:acceso abierto
Palabra clave:Grain Yield
Suboptimal Environments
WHEAT
GENETIC GAIN
CLIMATE CHANGE
BREEDING
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
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spelling Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environmentsCrespo Herrera, L.A.Crossa, J.Huerta-Espino, J.Vargas Hernández, M.Mondal, S.Velu, G.Payne, T.S.Braun, H.J.Singh, R.P.Grain YieldSuboptimal EnvironmentsWHEATGENETIC GAINCLIMATE CHANGEBREEDINGAGRICULTURAL SCIENCES AND BIOTECHNOLOGYCLIMATE CHANGEWHEATGENETIC GAINWheat (Triticum aestivum L.) is a major staple food crop grown worldwide on >220 million ha. Climate change is regarded to have severe effect on wheat yields, and unpredictable drought stress is one of the most important factors. Breeding can significantly contribute to the mitigation of climate change effects on production by developing drought-tolerant wheat germplasm. The objective of our study was to determine the annual genetic gain for grain yield (GY) of the internationally distributed Semi-Arid Wheat Yield Trials, grown during 2002–2003 to 2013–2014 and developed by the Bread Wheat Breeding program at the CIMMYT. We analyzed data from 740 locations across 66 countries, which were classified in low-yielding (LYE) and medium-yielding (MYE) environments according to a cluster analysis. The rate of GY increase (GYC) was estimated relative to four drought-tolerant wheat lines used as constant checks. Our results estimate that the rate of GYC in LYE was 1.8% (38.13 kg ha−1 yr−1), whereas in MYE, it was 1.41% (57.71 kg ha−1 yr−1). The increase in GYC across environments was 1.6% (48.06 kg ha−1 yr−1). The pedigrees of the highest yielding lines through the coefficient of parentage analysis indicated the utilization of three primary sources—‘Pastor’, ‘Baviacora 92’, and synthetic hexaploid derivatives—to develop drought-tolerant, high and stably performing wheat lines. We conclude that CIMMYT’s wheat breeding program continues to deliver adapted germplasm for suboptimal conditions of diverse wheat growing regions worldwide.1890-1898Crop Science Society of America (CSSA)2019-01-15T15:34:38Z2019-01-15T15:34:38Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePDFapplication/pdf1435-0653ISSN: 0011-183XESSN: 1435-0653https://hdl.handle.net/10883/1978610.2135/cropsci2018.01.0017558Crop Sciencereponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishhttps://dl.sciencesocieties.org/publications/cs/supplements/58/1890_supp-tables_supplement1.xlsxhttps://dl.sciencesocieties.org/publications/cs/supplements/58/1890_supp-figs_supplement2.pdfMadison, U.SCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the sutable license for that purpose.Open Accessinfo:eu-repo/semantics/openAccessoai:repository.cimmyt.org:10883/197862024-10-11T19:55:21Z
dc.title.none.fl_str_mv Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
title Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
spellingShingle Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
Crespo Herrera, L.A.
Grain Yield
Suboptimal Environments
WHEAT
GENETIC GAIN
CLIMATE CHANGE
BREEDING
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
CLIMATE CHANGE
WHEAT
GENETIC GAIN
title_short Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
title_full Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
title_fullStr Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
title_full_unstemmed Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
title_sort Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments
dc.creator.none.fl_str_mv Crespo Herrera, L.A.
Crossa, J.
Huerta-Espino, J.
Vargas Hernández, M.
Mondal, S.
Velu, G.
Payne, T.S.
Braun, H.J.
Singh, R.P.
author Crespo Herrera, L.A.
author_facet Crespo Herrera, L.A.
Crossa, J.
Huerta-Espino, J.
Vargas Hernández, M.
Mondal, S.
Velu, G.
Payne, T.S.
Braun, H.J.
Singh, R.P.
author_role author
author2 Crossa, J.
Huerta-Espino, J.
Vargas Hernández, M.
Mondal, S.
Velu, G.
Payne, T.S.
Braun, H.J.
Singh, R.P.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Grain Yield
Suboptimal Environments
WHEAT
GENETIC GAIN
CLIMATE CHANGE
BREEDING
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
CLIMATE CHANGE
WHEAT
GENETIC GAIN
topic Grain Yield
Suboptimal Environments
WHEAT
GENETIC GAIN
CLIMATE CHANGE
BREEDING
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
CLIMATE CHANGE
WHEAT
GENETIC GAIN
description Wheat (Triticum aestivum L.) is a major staple food crop grown worldwide on >220 million ha. Climate change is regarded to have severe effect on wheat yields, and unpredictable drought stress is one of the most important factors. Breeding can significantly contribute to the mitigation of climate change effects on production by developing drought-tolerant wheat germplasm. The objective of our study was to determine the annual genetic gain for grain yield (GY) of the internationally distributed Semi-Arid Wheat Yield Trials, grown during 2002–2003 to 2013–2014 and developed by the Bread Wheat Breeding program at the CIMMYT. We analyzed data from 740 locations across 66 countries, which were classified in low-yielding (LYE) and medium-yielding (MYE) environments according to a cluster analysis. The rate of GY increase (GYC) was estimated relative to four drought-tolerant wheat lines used as constant checks. Our results estimate that the rate of GYC in LYE was 1.8% (38.13 kg ha−1 yr−1), whereas in MYE, it was 1.41% (57.71 kg ha−1 yr−1). The increase in GYC across environments was 1.6% (48.06 kg ha−1 yr−1). The pedigrees of the highest yielding lines through the coefficient of parentage analysis indicated the utilization of three primary sources—‘Pastor’, ‘Baviacora 92’, and synthetic hexaploid derivatives—to develop drought-tolerant, high and stably performing wheat lines. We conclude that CIMMYT’s wheat breeding program continues to deliver adapted germplasm for suboptimal conditions of diverse wheat growing regions worldwide.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-01-15T15:34:38Z
2019-01-15T15:34:38Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 1435-0653
ISSN: 0011-183X
ESSN: 1435-0653
https://hdl.handle.net/10883/19786
10.2135/cropsci2018.01.0017
identifier_str_mv 1435-0653
ISSN: 0011-183X
ESSN: 1435-0653
10.2135/cropsci2018.01.0017
url https://hdl.handle.net/10883/19786
dc.language.none.fl_str_mv English
language_invalid_str_mv English
dc.relation.none.fl_str_mv https://dl.sciencesocieties.org/publications/cs/supplements/58/1890_supp-tables_supplement1.xlsx
https://dl.sciencesocieties.org/publications/cs/supplements/58/1890_supp-figs_supplement2.pdf
dc.rights.none.fl_str_mv Open Access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Open Access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv PDF
application/pdf
dc.coverage.none.fl_str_mv Madison, U.S
dc.publisher.none.fl_str_mv Crop Science Society of America (CSSA)
publisher.none.fl_str_mv Crop Science Society of America (CSSA)
dc.source.none.fl_str_mv 5
58
Crop Science
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instacron_str CIMMYT
institution CIMMYT
reponame_str Repositorio Institucional de Publicaciones Multimedia del CIMMYT
collection Repositorio Institucional de Publicaciones Multimedia del CIMMYT
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