Provisional RL harvest results bode well for candidate WOSR varieties
21st September 2022
Two candidate winter oilseed rape varieties from breeder LS Plant Breeding Ltd (LSPB) – Murray and Vegas – are near the top of the AHDB RL harvest results table (2nd equal and 3rd), with yields ahead of most of the currently recommended varieties.
The provisional RL harvest results for Murray are 106%, of control with Vegas close behind at 105%, both figures based on four-year gross output averages.
There are now four winter oilseed rape varieties from LSPB containing the new RlmS phoma resistance gene available for this season’s drilling. Murray and Vegas are both on the AHDB candidates list for recommendation this autumn, plus Respect and Flemming, which already have AHDB Recommendation for the E/W region in 2022/23.
OSR varieties from LSPB.
The RlmS phoma resistance gene should give long-term and sustainable phoma control and offer an alternative to the existing Rlm7 gene, which is widely found in current oilseed rape varieties. The introduction of RlmS marks an important development for continued genetic protection in the fight against phoma.
All four varieties are very high yielding with good light leaf spot scores, mid-maturity and are very vigorous – particularly in the spring. In addition, Flemming offers TuYV resistance.
The RL results table also feature LSPB’s clubroot resistant variety Crome which is a restored hybrid with Specific Recommendation (Sp) for the UK for growing on land infected with common strains of clubroot.
Also included in the results is LSPB’s Resort which is the only HEAR (high erucic acid rape) variety on the current AHDB 2022/23 winter oilseed rape list, as a ‘UK Described variety’. Its RL trials yield, while lower than others, needs to be seen in the context of the excellent total returns achievable when the significant buyback contract premiums available for this specialist market are added in.
Chris Guest, LSPB managing director, commented: “The 2022 AHDB RL harvest results show the comprehensive oilseed rape variety choice we offer growers.
LSPB managing director, Chris Guest.
“In particular, the results underline the performance of Murray and Vegas. As these varieties came through our breeders’ trials, we could see that they were very high yielding with the benefit of the new RlmS Phoma resistance.”
