Origin: in Davis, Calif., by H.P. Olmo and Albert T. Koyama, California Agr. Expt. Sta. Plant patent 5056; 31 May 1983; assigned to Regents of Univ. of California, Berkeley. Introd. in 1980. S44-35c × 9117D. Of complex parentage involving four generations, derived from Emperor, Hunisa, Pirovano 75, and Nocera. Cross made in 1962; seedling vine selected in 1966; tested as c15-47. Cluster: long conical; large to very large. Berry: large, up to 9 g; ellipsoidal to ellipsoidal obovoid; skin dark red to reddish-black; flavor neutral. Believed superior to commercial Emperor in yield and regularity in cropping, and more uniform earlier coloring, larger berry, and improved palatability compared to Emperor. Tree: Fruit:
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