Data/hora: 16/06/2024 10:37:22

Provedor de dados: | 87
País: | Brazil
Título: | The Allelopathic Effect of Eucalyptus Leaf Extract on Grass Forage Seed
Autores: | Carvalho,F.P.; Melo,C.A.D.; Machado,M.S.; Dias,D.C.F.S.; Alvarenga,E.M.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Eucalyptus urograndis; Urochloa decumbens; Panicum maximum; Agroforestry system; Germination; Seedling performance.
Resumo: | This study aimed to evaluate the allelopathic effect of various concentrations of an aqueous extract of eucalyptus leaves on Urochloa decumbens and Panicum maximum seeds. The extract was prepared from Eucalyptus urograndis leaves that were milled and mixed with distilled water in a 1:9 milled leaves: water ratio to obtain an extract with a defined concentration of 100%. In addition, dilutions of 50%, 25% and 12.5% were prepared, and a 0% dilution was used as a control. The experiment followed a completely randomized design, with four replicates, each of 50 seeds of U. decumbens and 50 seeds of P. maximum, arranged on filter paper moistened with each concentration of extract in a Gerbox plastic box. The results demonstrated the allelopathic potential of E. urograndis aqueous extracts applied to the seeds of U. decumbens and P. maximum. The 50% and 100% concentrations of leaf extract most strongly inhibited the germination, vigor and seedling growth of U. decumbens and P. maximum. The germination speed index and the root length were the characteristics that were most affected by the potentially allelopathic substances contained in the eucalyptus extracts at all concentrations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000200193
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/0100-83582015000200004
Formato: | text/html
Fonte: | Planta Daninha  v.33 n.2 2015
Fonte: | info:eu-repo/semantics/openAccess