Efficacy of irradiated glyphosate against Brachiaria plantaginea L.
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2018
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Journal of Agricultural Science
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Resumo
Glyphosate irradiated with cobalt-60 type Gammacell 220 at different rates was sprayed on seedlings of
Brachiaria plantaginea L., a common weed, grown in pots (one seedling with 3-4 leaves in each pot), at
different concentrations equivalent to 1 L h-1 or 3 L h-1. Each sample containing 40 ml of the product (glyphosate)
taken to a source of Cobalt-60 type Gammacell 220, under a dose rate of 0.312 kGy/hour in doses of: T0, control
(water instead of glyphosate); T1, glyphosate at 1.0 L h-1; T2, glyphosate at 3.0 L h-1; T3, glyphosate irradiated at
250 Gy at 1.0 L h-1; T4, glyphosate irradiated at 500 Gy at 1.0 L h-1; T5, glyphosate irradiated at 750 Gy at 1.0 L
h-1; and T6, glyphosate irradiated at 1000 Gy at 1.0 L h-1. The effects were assessed in terms of the extent of
injury, where scale of 0% (no visible injury) to 100% (plant dead), number of tillers, weed survival and dry
biomass produced by the plants. The most effective treatment was glyphosate irradiated at 250 Gy h-1 and
applied at 1.0 L h-1. It is important to know that gamma radiation in glyphosate herbicide can be used without
antagonistic interactions without cause resistance.
Como referenciar
MACHI, ANDRE R.; FERRARI, LUIZ S.; ARTHUR, VALTER. Efficacy of irradiated glyphosate against Brachiaria plantaginea L.. Journal of Agricultural Science, v. 10, n. 7, p. 383-389, 2018. DOI: 10.5539/jas.v10n7p383. Disponível em: http://repositorio.ipen.br/handle/123456789/29939. Acesso em: 12 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.