A trailing, early-ripening, large-fruited, high-quality blackberry for fresh market or processing. Origin: in Corvallis, Ore., by C.E. Finn, F.J. Lawrence, B.C. Strik, J. DeFrancesco, and B. Yorgey, USDA–ARS, Oregon State Univ. and Wash. State Univ. ORUS 2027 (Olallie × ORUS 1367) × ORUS 1826 (ORUS 1122 × Boysen); selected in 1983; introd. in 1997; tested as ORUS 830-4. Tree: vigorous; more spines than Marion; more tolerant of environmental stress (i.e., low temperature) than Marion; canes more resistant to cane and leaf spot (Septoria rubi) than Marion; cane botrytis (Botrytis cinerea) has been observed occasionally; has shown no symptoms of yellow rust (Kuehneola uredinis) infection or of the unidentified pathogen that caused drupelets of Kotata and Marion to turn brown and dry in 1997 and 1998. Fruit: very large (8.0 to 9.0 g); firm; attractive with a high drupelet count; excellent flavor; ripens 10–14 days before Marion; tips of fruit on late flowers often do not set; lower soluble solids than Waldo but similar to Marion; pH slightly higher and titratable acidity slightly lower than Marion; IQF fruit similar to Marion for color characteristics, flavor and perception of “seediness”; purée nearly indistinguishable from Marion, similar for overall quality, aroma, flavor, and appearance, although perceived to have a poorer color; juice similar in color, appearance, aroma and flavor to Marion. Commercially has been excellent for fresh-market in California and Oregon.
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