Impact of water deficit in the relationship among alfafa traits.

Detalhes bibliográficos
Autor(a) principal: SANTOS, I. G. dos
Data de Publicação: 2020
Outros Autores: TEODORO, P. E., CRUZ, C. D., FERREIRA, R. de P.
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/1127660
http://dx.doi.org/10.14393/BJ-v36n3a2020-41869
Resumo: This study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions.
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spelling Impact of water deficit in the relationship among alfafa traits.Path analysisCorrelationsDry matter biomassMedicago SativaThis study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions.Iara Gonçalves dos Santos, UFV; Paulo Eduardo Teodoro, UFMS; Cosme Damião Cruz, UFV; REINALDO DE PAULA FERREIRA, CPPSE.SANTOS, I. G. dosTEODORO, P. E.CRUZ, C. D.FERREIRA, R. de P.2020-12-05T09:05:33Z2020-12-05T09:05:33Z2020-12-042020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBioscience Journal, Uberlândia, v. 36, n. 3, p. 905-913, may-jun. 2020http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127660http://dx.doi.org/10.14393/BJ-v36n3a2020-41869enginfo: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:EMBRAPA2020-12-05T09:05:40Zoai:www.alice.cnptia.embrapa.br:doc/1127660Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542020-12-05T09:05:40falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542020-12-05T09:05:40Repositório 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 Impact of water deficit in the relationship among alfafa traits.
title Impact of water deficit in the relationship among alfafa traits.
spellingShingle Impact of water deficit in the relationship among alfafa traits.
SANTOS, I. G. dos
Path analysis
Correlations
Dry matter biomass
Medicago Sativa
title_short Impact of water deficit in the relationship among alfafa traits.
title_full Impact of water deficit in the relationship among alfafa traits.
title_fullStr Impact of water deficit in the relationship among alfafa traits.
title_full_unstemmed Impact of water deficit in the relationship among alfafa traits.
title_sort Impact of water deficit in the relationship among alfafa traits.
author SANTOS, I. G. dos
author_facet SANTOS, I. G. dos
TEODORO, P. E.
CRUZ, C. D.
FERREIRA, R. de P.
author_role author
author2 TEODORO, P. E.
CRUZ, C. D.
FERREIRA, R. de P.
author2_role author
author
author
dc.contributor.none.fl_str_mv Iara Gonçalves dos Santos, UFV; Paulo Eduardo Teodoro, UFMS; Cosme Damião Cruz, UFV; REINALDO DE PAULA FERREIRA, CPPSE.
dc.contributor.author.fl_str_mv SANTOS, I. G. dos
TEODORO, P. E.
CRUZ, C. D.
FERREIRA, R. de P.
dc.subject.por.fl_str_mv Path analysis
Correlations
Dry matter biomass
Medicago Sativa
topic Path analysis
Correlations
Dry matter biomass
Medicago Sativa
description This study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-05T09:05:33Z
2020-12-05T09:05:33Z
2020-12-04
2020
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 Bioscience Journal, Uberlândia, v. 36, n. 3, p. 905-913, may-jun. 2020
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127660
http://dx.doi.org/10.14393/BJ-v36n3a2020-41869
identifier_str_mv Bioscience Journal, Uberlândia, v. 36, n. 3, p. 905-913, may-jun. 2020
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127660
http://dx.doi.org/10.14393/BJ-v36n3a2020-41869
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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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)
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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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