Key Points
- Reglone (diquat 200 g ai/l), glyphosate (360 g ai/l) and Buster (glufosinate-ammonium 200g ai/l) were applied at 2.5 l/ha with 250 l/ha water to a ryegrass seed crop in the swath, which had been cut for over four weeks to test effects on seed quality.
- There was no effect of any treatments on final machine dressed seed yield (P<0.05).
- There was no effect of the desiccant treatments on seed quality six months after harvest including germination, emergence and viable endophyte transmission into seed (Table 1).
- At 10 months after harvest there was no difference in germination between any of the treatments (endophyte not tested).
- In the medium term (up to 10 months), all treatments did not affect seed quality.