Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/9467
Título: Relationships between leaf anatomical features of Arundo donax and glyphosate efficacy
Outros títulos: Parâmetros morfoanatómicos foliares de Arundo donax e eficácia do glifosato
Autor: Monteiro, Ana
Teixeira, Generosa
Moreira, Jorge Frazão
Palavras-chave: Poaceae
invasive species
cuticle
leaf anatomy
Data: 2015
Editora: SCAP
Citação: 2015 Monteiro Ana, Generosa Teixeira e Jorge Frazão Moreira Relationships between leaf anatomical features of Arundo donax and glyphosate efficacy. Revista de Ciências Agrárias, 38(2): 131-138.
Resumo: Cuticle thickness is known to affect the amount of active ingredient that reaches the target site of a post emergence herbicide and consequently its efficacy. So, this work aimed to relate glyphosate efficacy with the thickness of leaf cuticle of young and mature leaves of Arundo donax. Glyphosate was applied at different development stages of the invasive species, in spring, summer and autumn at the concentrations of 0.675; 1.350 and 2.025 g L-1. Cuticle thickness of mature and young leaf blade and leaf sheath was measured on transverse sections by light microscopy. Despite the significant differences in the cuticle thickness between young and mature leaves, this did not seem affect the efficacy of glyphosate uptake since no significant differences were observed between young and mature leaves glyphosate treatments. But herbicide efficacy was dependent of the plant development stage. Higher efficacy of glyphosate was recorded when plots were sprayed at the end of October (flowering) compared to end April and mid June applications. Mortality of giant reed was higher than 90% one year after treatment only in autumn treatments. This result suggests that other mechanisms are involved, probably the reserves carrying over to rhizomes, on herbicide efficacy
URI: http://hdl.handle.net/10400.5/9467
ISSN: 0871-018X
Aparece nas colecções:LEAF - Artigos de Revistas

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
REP-A.Monteiro-02_RCA_V38_n2_2015_ARTIGO_02.pdf851,92 kBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.