The final winter oilseed rape yield and gross output data has now been received from both treated and untreated AHDB Recommended List trials.
The average treated gross output of the control varieties is 5.12 tonnes/hectare, below the four-year average value of 5.25t/ha. The untreated control variety gross output is also below the four-year average, at 4.97t/ha.
The conventional variety, Aspire (108 per cent) is the leading variety in the treated trials, with the conventional variety, Ballad and the restored hybrid varieties, DK Expansion and Architect all on 106 per cent.
These varieties have UK recommendations, with Architect having a specific recommendation for resistance to turnip yellows virus (TuYV). Aspire also has resistance to TuYV.
In the untreated trials, the restored hybrid variety Temptation is the highest yielding (110 per cent), with the conventional variety Aspire at 109 per cent. Both varieties have TuYV resistance.
Treated gross output values for the candidate varieties in 2019 have the conventional variety, Acacia and the restored hybrid varieties, Artemis and Ambassador all at 110 per cent, with the restored hybrid Aurelia at 109 per cent.
Based on the four-year averages, Acacia is the leading variety for gross output at 109 per cent, with Aurelia on 108 per cent, Ambassador, 107 per cent and Artemis, 106 per cent.
On this longer four-year average, the conventional variety Aardvark is just behind at 105 per cent.