Sugar beet KWS launches first virus yellows tolerant beet S
ugar beet growers will be able to choose virus yellows tolerant beet in 2022 after Maruscha
KWS was added to the BBRO Recom- mended List.
Other notable additions from KWS
include Katjana, a high-yielding BCN tolerant variety with low bolting, and Smart Rixta, a Conviso Smart variety that is a good partner for the well-es- tablished Smart Janninka. In virus yellows trials in East An- glia over three years, Maruscha demon- strated tolerance to Beet Mild Yellowing Virus (BMYV) and a positive response to Beet Yellows Virus (BYV). KWS says it has made developing tolerance to virus yellows a priority for the UK, which has among the highest seasonal risks of infection of any coun- try in Europe.
Breeding varieties with strong tol- erance remains a difficult and compli- cated process because of the different nature of the closterovirus and poler- ovirus strains that make up the virus yellows complex. The polerovirus genus includes Tur-
nip Yellows Virus (TuYV), which can cause yield losses of up to 30% in oil- seed rape, and potato leaf roll virus, possibly the most important virus dis- ease of potatoes.
The nature of the viruses involved means tolerance to one form of the vi- rus does not necessarily confer equal protection against another, explains Ben Bishop, KWS country manager for sugar beet in the UK. “Maruscha KWS is the first varie- ty to come through the KWS breeding programme with a level of tolerance that supports commercially viable
Maruscha KWS virus yellows tolerant sugar beet in a field of non-tolerant beet
yields,” says Mr Bishop. KWS will have a series of demon- stration plots of Maruscha KWS in commercial crops of sugar beet in the 2021 season. Mr Bishop says this means interested growers will have the opportunity to see how the crop performs under real-world conditions this summer.
While its tolerance to virus yel- lows is likely to pique grower inter- est, Maruscha KWS has also demon- strated good disease resistance to the principal threats, rust and Cercospora leaf spot in list trials.
Tempo
Unmatched precision atvery high speed Maize Sugar beet OSR Beans Sunflower Cotton Sorghum Pumpkin
Väderstad Tempoisanewgeneration high-speed planter, delivering an unmatched precision at double the speed of traditional planters. No-till,min- till or conventional tillage – Tempo performs exceptionally in all conditions. The crops gets the best start possiblewhichresults in an even emergence.
Learn more at
vaderstad.com JUNE 2021 • ANGLIA FARMER 53
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76
