New beet varieties bring yield and reliability, say breeders Landon is a high yielding variety from Strube.
Growers no longer need to sacrifice yield when selecting for nematode tolerance and disease resistance with new varieties from KWS combining exceptional yields with robust performance against pest and disease pressures, says the breeder. With KWS achieving four of the top five highest yielding varieties on the BBRO Recommended List for 2018, there is every opportunity for growers to manage risk without compromising profitability, adds the company. Introduced for the 2018 season, Daphna is the first BCNtolerant variety to top the BBRO Recommended List with a yield of 106.9 per cent of controls while Senada KWS has the best combined disease resistance of any variety and is the second-highest yielding variety on the RL with a yield of 105.6 per cent of controls. “Daphna outperformed all varieties in trial over three contrasting seasons. Almost seven per cent higher yielding than the control varieties, it has the potential to improve enterprise gross margins,” says KWS UK country manager for sugar beet, Ben Bishop (left). “A low bolter count in the early sown window (<5th March) and with excellent resistance to both rust (7) and powdery mildew (6), Daphna sugar beet seed is suited to all farm situations and locations and will prove popular with growers as a means of controlling nematode
infestations,” says Mr Bishop. The second-highest yielding variety to join the 2018 BBRO Recommended List is Senada KWS with an adjusted yield of 105.6 per cent. “Senada KWS has the best combined resistance to powdery mildew and rust of any recommended variety which, combined with its high yield, makes it an impressive all-round performer.” “Delivering its best performances when sown from midMarch, Senada KWS beet seed will appeal to growers wanting a range of varieties to spread the drilling workload,” adds Mr Bishop.
background. In the interests of managing risk, it does make sense to choose varieties from different breeders.” Landon and Degas join Strube’s established varieties Haydn and Pasteur which make up nearly one third of the UK National crop in 2017. Mr Powell believes that with so many varieties on the List having only trials data derived from kilos of seed, it makes good sense to keep a decent proportion of the crop in commercially proven varieties which have been well tested from large productions of commercial seed. For the fourth year in succession, in 2017, Haydn will make up nearly 20 per cent of the UK national sugar beet crop. “The combination of consistent yields, decent sugars and very low bolting in a commercially proven variety still appeals. In the past four years we have supplied over 100t of seed – so growers know what to expect.” In the specialist category, Thor from Strube is the only fully recommended variety with tolerance to BCN (beet cyst nematode). The company claims it offers sound, affordable performance in fields infested with nematodes with the added advantage of low bolting to allow earlier drilling.
Flexibility in sowing
Sugar beet breeder Strube has two new varieties offering genetic diversity at the top of the new list. Landon is a high yielding variety with excellent establishment which is ideal for later drilling, says the company. Also new is Degas, a low-bolting variety for earlier drilling, which combines improved sugar content with vigorous growth for rapid ground cover. Strube UK managing director Richard Powell (left) stresses the need to consider genetic diversity: “This is recognised in UK practice, where no single variety is allowed to take more than 20 per cent of the market and 10 of the 12 highest yielding varieties are derived from a similar genetic
BTS 3325 is a newly recommended variety for the 2018 season that offers growers the opportunity to grow a high yielding sugar beet variety with low bolting figures – offering flexibility in sowing for both the early and later drilling slots, says
Limagrain UK. “Choosing a new sugar beet variety is no longer just about output – agronomic characteristics such as bolting tolerance and disease resistance are becoming increasingly important characteristics to consider, which is why the Recommended List now requires varieties to perform well in these categories over three years of field trials,” says Limagrain sugar beet consultant Bram van der Have (right). BTS 3325 is a high yielding (103.0 per cent) rhizomania tolerant variety offering very high sugar content of 18.1 per cent, which is one of the highest on the BBRO Recommended List, making it a very attractive proposition for growers and end-users alike, he points out. “However what make BTS 3325 so exciting is that alongside this higher output, BTS 3325 has also demonstrated a very low ESB (early sown bolting) score – one of the lowest on the RL in this slot. “It is likely to appeal to growers who are in a position to drill on, or before, the 5th March, so it’s the ideal variety choice to start the beet sowing period, but it is also flexible enough to be sown later, without compromising its high yield and sugar content.” BTS 3325 also offers a very robust diseases resistance package that growers will find valuable, offering excellent rust resistance (7), and very good downy mildew and powdery mildew resistance, he adds. ■
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