Brewers Visit NC Hops Breeding Program
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8/11/2021 – Yesterday nine brewers, representing Sideways Farm & Brewery, Burning Blush Brewery, and Wicked Weed Brewing with their visitors from Tennessee, came out by special invitation to visit with Dr. Luping Qu in one of his hop breeding yards at the Mountain Horticultural Crops Research and Extension Center in Mills River, NC. Luping has been slowly, carefully, and quietly breeding hops for the Southeastern United States. The popular, commercially available hop varieties were all bred for the northern states, particularly Washington, Oregon, and Idaho. They perform pretty well in the new northern hop growing regions in Michigan, New York, and Vermont, for example. But when you bring those varieties south, the yields drop off dramatically. This is because hops are a photoperiod sensitive plant, i.e., they flower in response to changing day length. And our days are shorter here, and that reduces our yields. Yields can be increased by extending the day length by adding lights to the hop yard, but that is expensive, not practical in many cases, and has environmental consequences.
So, Luping has been breeding hops that naturally produce higher yields in the south. He is also selecting for resistance to the disease, Downy Mildew, and for interesting flavors and aromas. Currently, he has two lines that he is very excited about. He has both growing in trials on hop farms in North Carolina. As you can see in the picture above, the plants directly in front of the brewers are much fuller and taller than those in the plots on either side or behind them. This is one of the lines he is anxious for these brewers to evaluate this year. He will also send samples off to the Enology Services Lab at Virginia Tech for analysis.
One of the traits Luping looks for in his selection is long side-arms because they are where more cones can be produced. As he is demonstrating in the photo above, these new lines have side-arms that are 36 inches long or longer. In comparison, the plants in the plot behind him do not have any side-arms evident.
Follow our hops progress on our NC Alternative Crops & Organics Program website.
We thank the N.C. Department of Agriculture and Consumer Services (NCDA&CS) New and Emerging Crops Program for their current financial support and the NCDA&CS Specialty Crops Block Grant Program for past financial support. You can support our program by donating online through this secure NC State Univerity donation site.