Enterprising arable manager Martin Smart values the HGCA variety trials but prefers to reinforce their conclusions by undertaking extensive on-farm trials on his farms to compare performance, to take yields forward and to make sure that each rape variety is planted where it will perform the best.

image expired

In his trials he assesses each variety in minute detail, scoring them for establishment, vigour and development every week and recording their growth and health photographically. At harvest each variety is harvested and weighed separately and moisture and oil contents checked.

DSV Hybrids show good vigour

Martin has noted that several DSV hybrids including Dimension and Compass show very good vigour and have the power to grow away well in the autumn. "The new hybrid varieties Climber, Primus and Record also look very vigorous. They also grow evenly, which helps with inputs and harvesting decisions."

He has observed that Compass matures a little later than Dimension, with Flash later still. "So we also have a good spread of maturity which helps with management and workloads. The Compass has been particularly easy and quick to harvest, feeding well into the combine."

High Oil content

Reporting on yields in his trials this year, Martin has been very pleased with the overall performance.  "Compass has yielded an amazing 6.1 t/ha at 8.1% moisture, Dimension and Flash both yielded 5.88 t/ha at 8.3% moisture, Primus yielded 5.88 t/ha at 8.1% moisture and Record yielded 5.99 t/ha at 7.9% moisture. Samples for oils have been sent off and I was hoping for some positive results. Compass has delivered 45.7% oil, Dimension 44.5% oil and Flash 44.6%. Oil bonuses make a very important contribution to profit contribution, so the higher the better. Many DSV varieties usually show good oils."

He adds that his farms have difficult black-grass, cleaver and charlock weed problems and he is of the view that certain chemistries with contact activity show some varietal variation when it comes to crop safety.  "I have seen differences in waxiness of leaves, particularly under cold frosty conditions, and have seen some varieties knocked badly by contact herbicides."

Martin is growing several DSV varieties and has been impressed by their performance. "As a breeder DSV have some excellent skills and excellent plant stock in their breeding programme. They were happy to provide seed for my trials and fully supportive on the work I am doing."

If you need any further information about Compass, Dimension, Primus or Record or any other DSV rape variety, please contact Sarah Lockhart of DSV on 01366 388223 or via mobile   07789 888703 or by email lockhart@dsv-uk.co.uk