‘Wild Treasure’ is a new trailing blackberry (Rubus subg. Rubus Watson) cultivar from the U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS) breeding program in Corvallis, OR, released in cooperation with Oregon State University's Agricultural Experiment Station. ‘Wild Treasure’ is thornless and has high-quality fruit that are very small and suitable for mechanical harvest (Figs. 1–3). The fruit is of particular value for market niches where small fruit size is perceived as superior. Such markets include bakery products that use whole berries and in frozen polybag fruit blends in which large-fruited blackberries are out of proportion to the other components of the mix. ‘Wild Treasure’ is named to recognize its pedigree because it was selected from a cross between a thornless cultivar and a selection of the western dewberry, Rubus ursinus Cham. et Schlt.
Kurnianta, A.J. 2005 Descriptive sensory analysis of thornless blackberry selections to determine sensory similarity to ‘Marion’ blackberry flavor MS thesis, Oregon State University Corvallis, OR
Siriwoharn, T., Wrolstad, R.E., Finn, C.E. & Pereira, C.B. 2004 Influence of cultivar, maturity and sampling on blackberry (Rubus L. hybrids) anthocyanins, polyphenolics, and antioxidant properties J. Agr. Food Chem. 52 8021 8030
Yorgey, B. & Finn, C.E. 2005 Comparison of ‘Marion’ to thornless blackberry genotypes as individually quick frozen and puree products HortScience 40 513 515