HomeProduct Complimentary download United Kingdom -Amalie, the resistant TuYV OSR variety from Limagrain: first commercial harvest results confirm the value of TuYV resistance

United Kingdom -Amalie, the resistant TuYV OSR variety from Limagrain: first commercial harvest results confirm the value of TuYV resistance

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Publish time: 28th July, 2015      Source: United Kingdom
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United Kingdom -Amalie, the resistant TuYV OSR variety from Limagrain: first commercial harvest results confirm the value of TuYV resistanceUnited Kingdom -Amalie, the resistant TuYV OSR variety from Limagrain: first commercial harvest results confirm the value of TuYV resistance" title="Share this link on Facebook">United KingdomJuly 28, 2015Amalie, the resistant TuYV OSR variety, has yielded 5t/ha in its first commercially recorded harvest, a tonne per hectare over non-resistant varieties on the same farm.Harvested at Brampton on Monday 20th July, the 30ha block of Amalie yielded as much as 7.5t/ha in some places but averaged out on the weighbridge at 5t/ha. Similar amounts of non TuYV resistant varieties, Cabernet and Charger yielded 3.8t/ha and 4t/ha respectively.It is thought that the yield difference is due to the TuYV resistance as the crops were all treated the same throughout the season, and all the crops were swathed so could actually have yielded about 0.25t/ha more.Having established well after drilling on the 23rd August, the crops looked good all season, although the non-resistant varieties Cabernet and Charger definitely showed early signs of TuYV infection such as purpling of the leaves, which the Amalie didn’t.Amalie remains the only commercially available oilseed rape variety with resistance to TuYV on the market, and the variety was re-submitted as a candidate in the 2014-2015 HGCA RL trials based on this trait.Amalie is a conventional OSR variety that offers a gross output similar to the widely grown variety, DK Cabernet. “However, our own trials using untreated seed over the last four years have clearly shown that where TuYV is present, Amalie can yield up to around 10% more than non-resistant varieties, so this first commercial result confirming what we have seen in trials is very exciting,” says Will Compson, oilseed product manager with breeders Limagrain.Mr Compson recognizes that this is just the first result adding that looking ahead we will continue to report on how the variety performs for the rest of the harvest and across regions but this first result is fundamental and means that variety choice will be even more critical than ever and will require a change in mind set where resistance and agronomics play an increasingly crucial role in order to protect yield.Agronomically the variety offers sound agronomics and robust disease resistance ratings, with a 7 for LLS and 8 for phoma, so with no obvious weaknesses there is a serious case for growers to consider making it part of their OSR cropping this season.Amalie: Yield, agronomy and disease resistanceExcaliburVisionPR46W21DK CabernetAmalieFungicide-treated trials - East/WestGross output95102101101100Seed yield9610310010199Oil content44.544.145.745.245.0Agronomic featuresResistance to lodging (1-9)89899Stem stiffness (1-9)78798Height (cm)138140144141137Earliness of flowering (1-9)75545Earliness of maturity (1-9)66656Disease resistance (1-9)Light leaf spot66567Stem canker66578More news from: Limagrain UK Ltd.Website: http://www.limagrain.co.ukPublished: July 28, 2015The news item on this page is copyright by the organization where it originatedFair use notice