Impact of water deficit in the relationship among alfafa traits.
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/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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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 |
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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1794503498764648448 |