Saturday, October 20, 2018

Harvest results: first spring barley yields published

October 1, 2018 by  
Filed under Crops

The first Harvest Results from the 2018 AHDB Recommended Lists spring barley trials were published last month.

Initial results from five sites cover a wide geographic area – from the North (Angus, Perth and East Lothian), the East (Lincolnshire) and the West (Devon). The average yield of the control varieties stands at 7.33t/ha, which is 0.52t/ha below the five-year average of 7.85t/ha.

The 2018 weather made it a challenging year for crops, including spring cereals in the RL trial system. The wet spring caused a delay in drilling and the hot, dry summer shortened the season. Moisture was also limiting, particularly in lighter soils.

Yields are represented as a percentage of the control varieties. In 2018, Concerto, KWS Irina, Laureate, Propino and RGT Planet are the control varieties. The yield average from these varieties is represented as 100%.

To date, the 2018 values show yields based on a single season. LG Diablo (provisionally approved for brewing and distilling) has achieved a yield of 106%, with Laureate (fully approved for brewing and distilling), LG Tomahawk and Scholar all achieving 105%.

The five-year average is a better measure of variety performance. Over the longer term, LG Diablo (106%), RGT Planet (104%), LG Tomahawk (104%), Laureate (103%), Chanson (103%) and Scholar (103%) are all performing well. The popular variety Propino achieved 98%.

Looking at the five-year average yields for the 2018 candidate varieties, the potential malting variety Cosmopolitan achieved 106% and SY Contour achieved 104%. The top-yielding potential feed candidates are SY Kailash (105%) and Embrace (104%).

Results from individual trial sites should not be used to make conclusions on variety performance. When choosing varieties, market requirements, rather than yield, should drive variety selection, says the AHDB.

More information from the 2018 harvest will contribute to the over-trials averages. These averages provide better information for comparison between varieties. When more results are available, validation procedures will examine cross-site differences further.

Full trial results can be seen at cereals.ahdb.org.uk/harvestresults

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