Registration Status Registered
Source California vineyard (Inglenook)
Treatments Heat treatment 64 days
Comments This selection came to Foundation Plant Services at UC Davis around 1960 from the Inglenook vineyard in Napa. The original material for this selection underwent heat treatment for 64 days at FPS and was first planted in the foundation vineyard in 1965. A second selection (Merlot 01) also came to FPS from a different source vine at Inglenook but did not undergo heat treatment. Merlot 03 underwent microshoot tip tissue culture therapy at FPS in 2011 to qualify for planting in the Russell Ranch Foundation Vineyard. The treated material successfully completed testing in 2013 and will be planted at Russell Ranch as Merlot 03.1.