Glyphosate Efficacy in Chloris virgata Sw. in Response to Temperature and Tank Mixing.

ABSTRACT: Glyphosate alone or a tank mixture of glyphosate and 2,4-D is commonly used for broad-spectrum weed control under fallow conditions in Australia. Air temperature or mixing glyphosate with 2,4-D, may influence the efficacy of glyphosate on feather fingergrass (Chloris virgata Sw.), a problematic summer-season weed of Australia. Dose-response studies were conducted with four populations of feather fingergrass under temperature-controlled glasshouse conditions (35/25 °C and 25/15 °C at 12 h/12 h) to assess the level of glyphosate resistance in relation to temperature regimes. Four parameter log-logistic models were used to develop dose-response curves. Based on plant mortality percentage, LD₅₀ (lethal dose for 50% mortality) values of glyphosate at 25/15 °C for populations C

SUBMITTER: Mahajan G 

PROVIDER: S-EPMC9737009 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature