Data/hora: 11/06/2024 04:02:01

Provedor de dados: | 87
País: | Brazil
Título: | Exploring the Herbicidal and Hormetic Potential of Allelopathic Crops Against Fenoxaprop-Resistant Phalaris minor
Autores: | ABBAS,T.; NADEEM,M.A.; TANVEER,A.; ALI,H.H.; SAFDAR,M.E.; ZOHAIB,A.; FAROOQ,N.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Allelopathy; Alternative weed management; Hormesis; Littleseed canarygrass; Natural herbicides.
Resumo: | ABSTRACT: Recent increases in the development of herbicide resistance in Phalaris minor worldwide demand alternative non-chemical strategies to control this weed. A series of experiments were conducted under laboratory and greenhouse conditions to explore the herbicidal potential of four allelopathic crops, including maize, rice, sorghum and sunflower, at different concentrations of aqueous extracts (2.5% and 5%), residues (1%, 2% and 4%) and mulches (4, 8, and 12 ton ha-1) against fenoxaprop-resistant P. minor. Aqueous extracts, residues and mulches provided 86-100%, 73-100% and 16-40% control of this resistant weed biotype, respectively. The dry biomass reduction due to aqueous extracts, residues and mulches was 48-100%, 48-100% and 20-54%, respectively. Mulches also caused 17-41% reduction in the seed production potential of P. minor. Lower concentrations of allelochemicals showed hormesis (positive effect) against some emergence and growth traits of P. minor. The phytotoxic chemicals of these four crops have a strong herbicidal potential against herbicide-resistant P. minor, and can be used as an organic alternative to control herbicide resistant P. minor, thus ensuring a sustainable wheat production.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100257
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/s0100-83582018360100056
Formato: | text/html
Fonte: | Planta Daninha  v.36 2018
Fonte: | info:eu-repo/semantics/openAccess