Tuesday, August 21, 2018

Five new varieties added to 2019 sugar beet lists

May 31, 2018 by  
Filed under Crops

Continued improvements in yield and other important characteristics are reflected in five new varieties added to the 2019 Recommended (RL) and to Descriptive (DL) List, says the British Beet Research Organisation.

Varieties from four different breeders were added to the new lists. New on the Recommended List are BTS 1140 from Limagrain UK, Kortessa KWS from KWS UK, Jura from SESVanderHave UK and Gauguin from Strube UK. Philina KWS from KWS UK was added to the Descriptive List.

Although 2017 trials were affected by the dry cold conditions at the start of the season, the control varieties in the trials still managed to achieve a mean yield of 114 adjusted tonnes per hectare with new varieties offering up to a 7.6% yield increase above that.

Low bolting

Mike May, chairman of the Recommended List board, said: “It is also good to see some of the new varieties with very low bolting, an important requirement for many UK sugar beet growers.”

Two of the new RL varieties, Jura and Gauguin are beet cyst nematode (BCN) tolerant. With the high yields that breeders have managed to breed into these varieties, these are not restricted to the DL list, as was the case prior to the 2018 RL. They are therefore recommended for general use.

Philina KWS was added to the DL for use specifically where the aggressive AYPR strain of rhizomania has been identified in a field. It provides a superior yield to the variety it replaces. The yield results on the DL, and for BCN varieties, are in the absence of these problems.

Growers should take advice before planting these varieties. Mr May said: “Before ordering BCN or AYPR tolerant varieties, growers should discuss options with the BBRO and breeders who will have more information on their performance in the presence of the problem.”

The average plant population harvested was 108,000/ha and average sugar content 18.1%. Supplementary tables show three-year data for the varieties, seed provenance, vernalisation during early sown bolter trials over the last three years and juice impurities.

For full details, visit the BBRO website at www.bbro.co.uk.

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