Priming and stress under high humidity and temperature on the physiological quality of Brachiaria brizantha cv. MG-5 seeds

Página do item simplificado
dc.contributor.authorBatista, Thiago Barbosa
dc.contributor.authorCardoso, Eliana Duarte
dc.contributor.authorSilva Binotti, Flavio Ferreira da
dc.contributor.authorCosta, Edilson
dc.contributor.authorSa, Marco Eustaquio de [UNESP]
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:27:47Z
dc.date.available2018-11-26T16:27:47Z
dc.date.issued2016-01-01
dc.description.abstractPalisade grass is a forage plant that is widely used in pasture cropping in the Brazilian savannah. The aim of this experiment was to evaluate palisade grass (Brachiaria brizantha cv. MG-5) seeds subjected to priming and stress at high humidity and temperature (before and after conditioning). The experimental design was completely randomized in a 2x5 factorial arrangement. Seeds were exposed to stress under high humidity and temperature (before and after conditioning) and five priming treatments [Water (Control), potassium nitrate (KNO3) at 0.2%, calcium nitrate Ca(NO3)(2) at 0.2%, gibberellin (GA(3)) at 0.2% and glucose at 10%] with four replications. Two experiments were performed: Experiment I - seed with chemical scarification using H2SO4 and Experiment II - without scarification. The stress on the seed was applied using artificial aging at 41 degrees C for 96 hours. Seed priming was accomplished by immersion at 25 degrees C for 2 hours. Thereafter, the seeds were oven-dried at 35 degrees C until they regained hygroscopic equilibrium. Seed germination and vigor were evaluated. Priming using KNO3 and Ca(NO3)(2) produced seeds with high tolerance to stress under high temperature, and this process is efficient to overcome dormancy.en
dc.description.affiliationUniv Estadual Mato Grosso do Sul, Rodovia MS 306,Km 6, BR-79540000 Cassilandia, MS, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Engn Ilha Solteira, Dept Fitotecnia Tecnol Alimentos & Socio Econ, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Engn Ilha Solteira, Dept Fitotecnia Tecnol Alimentos & Socio Econ, Sao Paulo, Brazil
dc.format.extent123-127
dc.identifierhttp://dx.doi.org/10.4025/actasciagron.v38i1.26021
dc.identifier.citationActa Scientiarum-agronomy. Maringa: Univ Estadual Maringa, Pro-reitoria Pesquisa Pos-graduacao, v. 38, n. 1, p. 123-127, 2016.
dc.identifier.doi10.4025/actasciagron.v38i1.26021
dc.identifier.fileS1807-86212016000100123.pdf
dc.identifier.issn1807-8621
dc.identifier.lattes0756504113273662
dc.identifier.scieloS1807-86212016000100123
dc.identifier.urihttp://hdl.handle.net/11449/161256
dc.identifier.wosWOS:000371225500014
dc.language.isoeng
dc.publisherUniv Estadual Maringa, Pro-reitoria Pesquisa Pos-graduacao
dc.relation.ispartofActa Scientiarum-agronomy
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectpalisade grass
dc.subjectseed deterioration
dc.subjectexpression of vigor
dc.subjectnitrate
dc.titlePriming and stress under high humidity and temperature on the physiological quality of Brachiaria brizantha cv. MG-5 seedsen
dc.typeArtigo
dcterms.rightsHolderUniv Estadual Maringa, Pro-reitoria Pesquisa Pos-graduacao
unesp.author.lattes0756504113273662

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
S1807-86212016000100123.pdf
Tamanho:
508.15 KB
Formato:
Adobe Portable Document Format
Baixar

Coleções

Artigos - Fitotecnia, Tecnologia de Alimentos e Sócio Economia - FEIS