Chloris polydactyla (L.) Sw., a perennial Poaceae weed: emergence, seed production, and its management in Brazil.

• Autor(a) principal: BRIGHENTI, A. M.
• Data de Publicação: 2007
• Outros Autores: VOLL, E., GAZZIERO, D. L. P.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/596113; https://doi.org/10.1111/j.1445-6664.2007.00243.x
• topic: soybean weed; tall windmillgrass; chemical control; weed biology

Experiments were conducted to evaluate the plant emergence and seed production of Chloris polydactyla and the efficacy of herbicides for its control. The plants emerged mainly when the seeds were placed on the soil surface at ≤ 3 cm depth. Isolated plants produced a great amount of seeds. The pre-emergence herbicides, acetochlor, atrazine + simazine, s-metolachlor, alachlor, and trifluralin, were effective for C. polydactyla control. The postemergence herbicides, clodinafop-propargil, haloxyfop-methyl, clethodim, fluazifop-p-butil, tepraloxydim, sethoxydim, and quizalofop-p-tefuril showed satisfactory control of the plants at a 20 cm height with six leaves. During the flowering stage (85 cm plant height), only glyphosate was effective in controlling C. polydactyla.