Morphophysiological changes by mepiquat chloride application inEucalyptusclones

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.contributorUniv Estadual Sudoeste Bahia UESB-
Autor(es): dc.contributorUniv Estadual Minas Gerais-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorSantos, Juscelina Arcanjo dos-
Autor(es): dc.creatorMatsumoto, Sylvana Naomi-
Autor(es): dc.creatorTrazzi, Paulo Andre-
Autor(es): dc.creatorSilva Ramos, Paula Acacia-
Autor(es): dc.creatorOliveira, Luan Santos de [UNESP]-
Autor(es): dc.creatorCampoe, Otavio Camargo-
Data de aceite: dc.date.accessioned2022-02-22T00:54:27Z-
Data de disponibilização: dc.date.available2022-02-22T00:54:27Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-09-08-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00468-020-02021-7-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208797-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208797-
Descrição: dc.descriptionKey Message First study of mepiquat chloride as a growth regulator inEucalyptus. Application of mepiquat chloride inEucalyptusclones at planting may promote drought resistance. The reduction of available areas has pushedEucalyptusaway to marginal areas with low water availability. Management practices such as the application of growth retardants may have potential to modify plant morphological and physiological features, increasing their drought tolerance. Trying to understand the drought tolerance mechanisms ofEucalyptusclones, the objective of this work was to evaluate the effects of different mepiquat chloride (MC) concentrations toEucalyptusclones on morphological and physiological changes. Commercial clones ofE. grandisxE. urophyllahybrid were planted in 20 L pots in a complete randomized block design with eight replications and four treatments. The treatments consisted of three concentrations of MC: 250, 500 and 1000 mg L(-1)of MC. The control treatment consisted of a non-MC application (0 mg L(-1)of MC). Evaluations of morphological and physiological parameters were carried out for 35 days after the MC application. Results indicated morphophysiological changes after the MC application.Eucalyptusclones increased root dry mass (RDM), total dry mass (TDM), number of leaves and secondary branches, and decreased height. MC application modified the physiological plant system improving intrinsic water use efficiency (WUEi) and SPAD index, and decreasing transpiration rates (E) and stomatal conductance (gs). RDM, TDM, E, WUE(i)and SPAD index improved when 250 and 500 mg L-1MC concentration were applied. Our results suggest that MC application may promote drought resistance toEucalyptusclones.-
Descrição: dc.descriptionUESB (Universidade Estadual Sudoeste da Bahia)-
Descrição: dc.descriptionFAPESB (FundacAo de Amparo a Pesquisa do Estado da Bahia)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Fed Lavras, Dept Forest Sci, Lavras, MG, Brazil-
Descrição: dc.descriptionUniv Estadual Sudoeste Bahia UESB, Dept Crop & Anim Sci, Vitoria Da Conquista, BA, Brazil-
Descrição: dc.descriptionUniv Estadual Minas Gerais, Dept Agron, Ituiutaba, MG, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Dept Agron, Agr, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Dept Agron, Agr, Botucatu, SP, Brazil-
Formato: dc.format189-198-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Relação: dc.relationTrees-structure And Function-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectPlant growth regulators-
Palavras-chave: dc.subjectGibberellin inhibitor-
Palavras-chave: dc.subjectMorphological-
Palavras-chave: dc.subjectPhysiological-
Palavras-chave: dc.subjectWater stress-
Título: dc.titleMorphophysiological changes by mepiquat chloride application inEucalyptusclones-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.