Strategy for selection of soybean genotypes tolerant to drought during germination
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.4238/gmr16029654 http://www.locus.ufv.br/handle/123456789/12164 |
Resumo: | Water deficit is the main reason for instability in the context of soybean culture. The development of strategies for the selection of more tolerant genotypes is necessary. These strategies include the use of polyethylene glycol 6000 solutions (PEG-6000) for conducting the germination test under conditions of water restriction. Thus, the objective of this study was to determine the osmotic potential and the main characteristics that promote the discrimination of soybean genotypes with regard to water stress tolerance during germination and the vigor test. Thirteen soybean cultivars were used. The seeds were allowed to germinate on sheets of germitest paper moistened in solution with PEG-6000, simulating different levels of water availability, which is expressed as osmotic potential (0.0, -0.2, -0.4, and -0.6 MPa). We assessed germination, length, and dry mass for seedlings and seeds, as well as reserve dynamics. Germination and variables related to the dynamics of reservation have great influence on the expression of variability in environments under stress. Among the different osmotic potentials, the -0.2 MPa was the most efficient for the expression of genetic variability among the cultivars. Conducting the germination test with PEG-6000 solution to -0.2 MPa was efficient for selecting soybean cultivars tolerant to water stress. This was accomplished by evaluating the percentage of germination, along with variables related to the dynamics of reservation. |
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Strategy for selection of soybean genotypes tolerant to drought during germinationGlycine max (l.) merrillGenetic breedingStress levelPolyethylene glycol (PEG-6000)Drought toleranceWater deficit is the main reason for instability in the context of soybean culture. The development of strategies for the selection of more tolerant genotypes is necessary. These strategies include the use of polyethylene glycol 6000 solutions (PEG-6000) for conducting the germination test under conditions of water restriction. Thus, the objective of this study was to determine the osmotic potential and the main characteristics that promote the discrimination of soybean genotypes with regard to water stress tolerance during germination and the vigor test. Thirteen soybean cultivars were used. The seeds were allowed to germinate on sheets of germitest paper moistened in solution with PEG-6000, simulating different levels of water availability, which is expressed as osmotic potential (0.0, -0.2, -0.4, and -0.6 MPa). We assessed germination, length, and dry mass for seedlings and seeds, as well as reserve dynamics. Germination and variables related to the dynamics of reservation have great influence on the expression of variability in environments under stress. Among the different osmotic potentials, the -0.2 MPa was the most efficient for the expression of genetic variability among the cultivars. Conducting the germination test with PEG-6000 solution to -0.2 MPa was efficient for selecting soybean cultivars tolerant to water stress. This was accomplished by evaluating the percentage of germination, along with variables related to the dynamics of reservation.Genetics and Molecular Research2017-10-18T17:28:15Z2017-10-18T17:28:15Z2017-05-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf16765680http://dx.doi.org/10.4238/gmr16029654http://www.locus.ufv.br/handle/123456789/12164eng16(2) gmr16029654, May 2017Dantas, S.A.G.Silva, F.C.S.Silva, L.J.Silva, F.L.info:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T08:09:38Zoai:locus.ufv.br:123456789/12164Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T08:09:38LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Strategy for selection of soybean genotypes tolerant to drought during germination |
title |
Strategy for selection of soybean genotypes tolerant to drought during germination |
spellingShingle |
Strategy for selection of soybean genotypes tolerant to drought during germination Dantas, S.A.G. Glycine max (l.) merrill Genetic breeding Stress level Polyethylene glycol (PEG-6000) Drought tolerance |
title_short |
Strategy for selection of soybean genotypes tolerant to drought during germination |
title_full |
Strategy for selection of soybean genotypes tolerant to drought during germination |
title_fullStr |
Strategy for selection of soybean genotypes tolerant to drought during germination |
title_full_unstemmed |
Strategy for selection of soybean genotypes tolerant to drought during germination |
title_sort |
Strategy for selection of soybean genotypes tolerant to drought during germination |
author |
Dantas, S.A.G. |
author_facet |
Dantas, S.A.G. Silva, F.C.S. Silva, L.J. Silva, F.L. |
author_role |
author |
author2 |
Silva, F.C.S. Silva, L.J. Silva, F.L. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Dantas, S.A.G. Silva, F.C.S. Silva, L.J. Silva, F.L. |
dc.subject.por.fl_str_mv |
Glycine max (l.) merrill Genetic breeding Stress level Polyethylene glycol (PEG-6000) Drought tolerance |
topic |
Glycine max (l.) merrill Genetic breeding Stress level Polyethylene glycol (PEG-6000) Drought tolerance |
description |
Water deficit is the main reason for instability in the context of soybean culture. The development of strategies for the selection of more tolerant genotypes is necessary. These strategies include the use of polyethylene glycol 6000 solutions (PEG-6000) for conducting the germination test under conditions of water restriction. Thus, the objective of this study was to determine the osmotic potential and the main characteristics that promote the discrimination of soybean genotypes with regard to water stress tolerance during germination and the vigor test. Thirteen soybean cultivars were used. The seeds were allowed to germinate on sheets of germitest paper moistened in solution with PEG-6000, simulating different levels of water availability, which is expressed as osmotic potential (0.0, -0.2, -0.4, and -0.6 MPa). We assessed germination, length, and dry mass for seedlings and seeds, as well as reserve dynamics. Germination and variables related to the dynamics of reservation have great influence on the expression of variability in environments under stress. Among the different osmotic potentials, the -0.2 MPa was the most efficient for the expression of genetic variability among the cultivars. Conducting the germination test with PEG-6000 solution to -0.2 MPa was efficient for selecting soybean cultivars tolerant to water stress. This was accomplished by evaluating the percentage of germination, along with variables related to the dynamics of reservation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-18T17:28:15Z 2017-10-18T17:28:15Z 2017-05-10 |
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 |
16765680 http://dx.doi.org/10.4238/gmr16029654 http://www.locus.ufv.br/handle/123456789/12164 |
identifier_str_mv |
16765680 |
url |
http://dx.doi.org/10.4238/gmr16029654 http://www.locus.ufv.br/handle/123456789/12164 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
16(2) gmr16029654, May 2017 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
pdf application/pdf |
dc.publisher.none.fl_str_mv |
Genetics and Molecular Research |
publisher.none.fl_str_mv |
Genetics and Molecular Research |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1817559991969644544 |