Garlic, weed, bulb yield, bioassay
A field experiment was carried out during the Rabi seasons of the years 2007-08 and 2008-09 at Junagadh (Gujarat) to study the effect of some herbicides for weed management in garlic and their persistence. The results indicated that all the treatments reduced the density and dry weight of weeds and increased yield and yield attributes significantly over unweeded check. A pre-emergence application of oxyfluorfen 240 g/ha showed its effect on indicator plants like sorghum and cucumber. Effect of oxadiargyl 90 g/ha was observed on cucumber at 30 DAS which disappeared at 60 DAS. Post-emergence application of oxadiargyl 90 g/ha, quizalofop-ethyl 40 g/ha and fenoxaprop-p-ethyl 75 g/ha made at 60 DAS did no show persistence effect on sorghum and cucumber at 90 DAS. Similarly, post-harvest study on succeeding crops of groundnut, greengram and pearl millet indicated that there was no residual phytotoxic effect of either pre- or post-emergence herbicides tested in the experiment.