A thornless, erect, fi rm-fruited blackberry. Origin: University of Arkansas, by John R. Clark and James N. Moore. Navaho × Ark. 1506; cross made in 1990; selected in 1993; tested as Ark. 1905. introduced in 2003. USPPAF. Tree: erect canes; thornless; productive, exceeding yield of Arapaho and comparable to Apache; moderate vigor; hardiness not well tested but hardy to –17.4 C; resistant to double blossom/rosette (Cercosporella rubi); moderately resistant to anthracnose (Elsinoë veneta). Fruit: medium-large, 7 g; fi rm; blocky and conical; glossy; soluble solids 10% to 11%; seed dry wt 4.5 mg; postharvest evaluations indicate comparable to near comparable to Navaho; even drupelet set; ripens on average 12 June at Clarksville, Ark. between Arapaho and Navaho;
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