Effect of tri-allate and barban on five strains of wild oat (Avena species) from the Darling Downs, Queensland
1970
Watkins, F.B.
See also Weed Abstr. 16: 544. The effects of the herbicides on 3 strains of A. ludoviciana and 2 of A. fatua growing on grey clay soil were investigated in the glasshouse. Generally the 2 A. fatua strains tolerated tri-allate (incorporated at 0.25-8 oz/ac before sowing) better than the A. ludoviciana strains whereas the reverse occurred with barban (applied at the early 2-leaf stage at 2-20 oz/ac). Despite a kill in some strains with barban, as a result of tillering the final plant populations were generally greater than those present at the outset. Since A. ludoviciana strains are predominant on the Darling Downs, this could explain the poor results very often obtained with barban and the comparatively good results often obtained with tri-allate. F.s.-P.K.
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