| 0 | PI 672717 | 'Sweetie Pie' | Rubus hybr. | Mississippi, United States | COR |  | Not Available | 2013 | DEVELOPED | | | | | | Cultivar | Rosette or double blossom is a serious disease of most erect blackberries and probably the most limiting factor in blackberry production in the southern United States. The cultivar 'Humble' has been reported variously as immune or tolerant to rosette. A breeding program was initiated at Poplarville, Miss. with the objective of breeding thornless cultivars with rosette resistance derived from 'Humble'. A productive rosette resistant plant (MSUS29) was identified from the cross 'Humble' X 'Brazos'. MSUS29 was backcrossed to standard cultivars and thornless cultivars. An elite thornless selection 'Sweetie Pie' (MSUS119) was identified from crosses with the thornless cultivar 'Navaho'. The most recent crosses were made between selections with 'Humble' as the source of rosette resistance and either 'Arapaho' or MSUS119 as the source of thornlessness. It is a challenge to select rosette resistant plants because we have not been able to develop a reliable screening procedure and all seedlings are screened in the field using natural infection. To determine the tendency of 'Humble', 'Brazos', and 'Rosborough' to transmit rosette resistance, we studied its heritability in blackberry. Only 'Humble' transmitted enough resistance to be usable as a parent. We evaluated the effect of rosette on ripening date, yield, and berry weight. Berries ripened about the same time and weighed about the same when grown at either a rosette-free or disease- present location. However, yield was reduced on some clones and not others where rosette was present. | 1914628 | PI 672717 |
| 1 | PI 672692 | 'Austin Mayes' | Rubus hybr. | Texas, United States | COR | | Not Available | 2012 | DEVELOPED | NEAR 1880 | | | | | Cultivar | Rubus baileyanus Britt. is a trailing blackberry found abundantly on dry wooded hills in Virginia, New Jersey, Pennsylvania, and New York. It has clusters of one to three fruits of good quality. Its best known contributions to cultivars are 'Lucretia' and the octopoid 'Austin Mayes', both of which are thought to be R. baileaynus x R. argutus hybrids (Darrow, 1937). The latter was found in Denton County, Texas, about 1880 by John Mayes. A spine-free mutant was discovered later.
It was named 'Austin Thornless'. | 1906479 | PI 672692 |
| 2 | PI 672685 | R. ulmifolius thornless fp2-108 | Rubus ulmifolius Schott | California, United States | COR | | Not Available | 2012 | COLLECTED | 09/21/2006 | south of San Mateo Road, West of Cabrilo Highway, NW of the town of Half Moon Bay | 37.46886500, -122.43053100 | 20 | edge of wooded area | Wild material | Thornless plant with trailing habit. Not susceptible to rust (Phragmidium violaceum ). Needs to have identity confirmed. Tested as diploid by flow cytometry (2015). | 1905190 | PI 672685 |
| 3 | PI 672682 | MSUS 119 | Rubus hybr. | Mississippi, United States | COR | | Not Available | 2012 | DEVELOPED | PRE 1999 | | | | | Breeding material | Rosette or double blossom is a serious disease of most erect blackberries and probably the most limiting factor in blackberry production in the southern United States. The cultivar Humble has been reported variously as immune or tolerant to rosette. A breeding program was initiated at Poplarville, Miss. with the objective of breeding thornless cultivars with rosette resistance derived from 'Humble'. A productive rosette resistant plant (MSUS29) was identified from the cross 'Humble' X 'Brazos'. MSUS29 was backcrossed to standard cultivars and thornless cultivars. An elite thornless selection (MSUS119) was identified from crosses with the thornless cultivar Navaho. The most recent crosses were made between selections with 'Humble' as the source of rosette resistance and either 'Arapaho' or MSUS119 as the source of thornlessness. It is a challenge to select rosette resistant plants because we have not been able to develop a reliable screening procedure and all seedlings are screened in the field using natural infection. To determine the tendency of 'Humble', 'Brazos', and 'Rosborough' to transmit rosette resistance, we studied its heritability in blackberry. Only 'Humble' transmitted enough resistance to be usable as a parent. We evaluated the effect of rosette on ripening date, yield, and berry weight. Berries ripened about the same time and weighed about the same when grown at either a rosette-free or disease- present location. However, yield was reduced on some clones and not others where rosette was present. | 1904831 | PI 672682 |
| 4 | PI 672660 | ORUS 3805-2 | Rubus occidentalis L. | Oregon, United States | COR | | Not Available | 2011 | DONATED | 07/21/2011 | | | | | Cultivar | Very erect, nearly thornless - notes from Michael Dossett 07/21/2011 | 1881998 | PI 672660 |
| 5 | PI 658340 | 'Newberry' | Rubus hybr. | Oregon, United States | COR | | Not Available | 2009 | DEVELOPED | 2008 | | | | | Cultivar | | 1814084 | PI 658340 |
| 6 | PI 657888 | ORUS 1413-1 | Rubus ×loganobaccus L. H. Bailey | Oregon, United States | COR | | Not Available | 2009 | DONATED | 05/15/2009 | | | | | Cultivar | | 1801683 | PI 657888 |
| 7 | PI 657882 | Spinefree Willamette | Rubus idaeus L. subsp. idaeus | Victoria, Australia | COR | | Not Available | 2008 | DEVELOPED | 1990 | | | | | Cultivar | Spinelessness is dominate from the gene Sfw. Clone of normal red raspberry 'Willamette' sent to Australia. Graeme McGregor observed and propagated the thronless mutant. Clones were sent from Australia to Scotland where Derek Jennings named and studied the plant.
Spinelessness in a mutant of the red raspberry cultivar 'Willamette'.
NAMED FOR= spinlessness | 1789098 | PI 657882 |
| 8 | PI 654997 | NZ 9672-1 | Rubus hybr. | Oregon, United States | COR | | Not Available | 2008 | DONATED | 04/29/2008 | | | | | Cultivar | A Loganberry type. Large red fruit that unlike Logan separate moderately easily from the plant. Excellent tart flavor, good shape and texture. Very early ripening (mid-June). Thornless with the Lincoln Logan source of thornlessness.
| 1777904 | PI 654997 |
| 9 | PI 654998 | ORUS 728-3 | Rubus hybr. | Oregon, United States | COR | | Not Available | 2008 | DONATED | 04/29/2008 | | | | | Breeding material | 7x ploidy. A very important parent in the background of a number of advanced selections and a parent of 'Black Butte'. Thornless (Austin Thornless source). Very productive, sometimes overcrops. Medium size purple-black fruit. Excellent shape. Separates easily from plant with good flavor. Trailing blackberry with very short fruiting laterals
| 1777905 | PI 654998 |
| 10 | PI 652960 | NZ 9351-4 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2006 | DEVELOPED | 1995 | | | | | Cultivar | A genotype with 'Lincoln Logan' thornlessness (dominant and can be screened at early seedling stage). Excellent yields of medium fruit. Very uniform shaped fruit that are dark purple, nearly black; excellent flavor. While blackberry like fruit, plant is more upright like a raspberry. Has been good parent in USDA-ARS program. In 2006 in grower trials as potential cultivar.
Trailing blackberry. Thornless (Lincoln Logan source). Processing market. Smaller fruit than Marion, similar yield. Excellent Quality. The 'Lincoln Logan' blackberry transmits some raspberry like characters in addition to its thornlessness. These include a more erect, less trailing habit, fruit that are often more dark purple than black and raspberry notes to the flavor- NZ 9351-4 has more dark purple, erect canes, and raspberry notes to the flavor than typical trailing blackberry. | 1722584 | PI 652960 |
| 11 | PI 652964 | ORUS 1395-2 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2006 | DEVELOPED | 1995 | | | | | Breeding material | Hybrid between thornless, eastern, erect blackberry and thorny western trailing erect blackberry with excellent fertility. Spiny, semi-erect canes. Fruit is medium-large, glossy, medium firm, uniform, very attractive trailing blackberry shape with good flavor. Late ripening. Very good parent when backcrossed back to trailing types. When backcrossed to eastern tetraploids can easily generate seedlings but have not found any good selections.Ploidy 6x as estimated by flow cytometry (Meng, R. and C. Finn. 2002. Determining ploidy level and nuclear DNA content in Rubus by flow cytometry. J. Amer. Soc. Hort. Sci. 127:767-775.)
| 1722589 | PI 652964 |
| 12 | PI 652966 | ORUS 1924-1 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2006 | DEVELOPED | 2000 | | | | | Breeding material | Both parents are 10x, would expect that it is probably 10x. Tillamook blackberry is supposed to be a selection of perfect flowered Rubus ursinus. Thornless (from Austin Thornless source), vigorous trailing blackberry. Fruit excellent quality with outstanding flavor. Fruit are small and somewhat soft. Considered for commercial potential as small fruited cultivar but yield was not sufficient.
| 1722591 | PI 652966 |
| 13 | PI 653103 | 'Anne' | Rubus idaeus L. subsp. idaeus | Maryland, United States | COR |  | Not Available | 2006 | DEVELOPED | | | | | | Cultivar | The following is a detailed description of the new cultivar, including fruit production, together with the cultivar's morphological characteristics. The characteristics of the cultivar are compared to the standard used in the area: `Hertiage`. This description is based on information provided by cooperating scientists from plants grown in fields at Queenstown, Md., Cream Ridge, N.J., Blackstone, Va. and River Falls, Wis., Rock Hall, Pa., and from plants grown in the greenhouse at College Park. JEF-b1 produces a moderate number of root- and crown-suckers. During the growing season, canes are light green colored, usually unbranched, semi-erect and moderately vigorous. Thorns are sparse, green, thin and usually less than 2 mm in length (see FIG. 3). Leaves have a R.H.S. (Royal Horticultural Society of London) Colour Chart number of 22A, are trifoliolate, and pentafoliolate on vigorous primocanes. Leaf serration is more complex than other eastern american raspberries, and is similar to `Glen Gerry`, a parent. `Glen Gerry` does not produce fall fruit and is thornless. Tips or serrations of JEF-b1 leaves form more acute angles than those on leaves of `Heritage` and other fall bearing cultivars. JEF-b1 leaf color is dark green. Fruit is borne on the top of the primocane in the fall season or from lateral buds at the base of winter canes. Fruit trusses are cymose clusters. Flowers are perfect and indistinguishable from other raspberry cultivars. Fruit are light yellow in color, having R.H.S. Color Chart number 143A, firm, large, and very symmetrical. Druplets are held together tightly, and druplets will often tear before they separate from their neighbors. Fruit is round-conic, has an even collar, and readily separates from its torus as do other raspberries. The cavity width is slightly smaller than in other cultivars. Fruit has a mild-sweet flavor with a banana-aromatic flavor developing in cooler climates. The plant is field resistant to many common pests and diseases in the eastern United States, e.g. mildew, anthracnose, leaf rust, and verticillium wilt. The plants' reaction to Phytophthora fragarae root rot is probably moderately resistant. Fruit is only moderately resistant to rot. Fruit Production JEF-b1 has been tested in a replicated trial in Cream Ridge, N.J., and in Rock Hall, Pa. The following data were collected in the summer/fall of 1994 and 1995. Early yield refers to fruit picked before Sep. 1, 1994.
Cultivar release by Harry Swartz, Joseph Fiola, Herbert Stiles, and Brian Smith
| 1699233 | PI 653103 |
| 14 | PI 641315 | ORUS 1393-1 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2005 | DONATED | 09/20/2005 | | | | | Breeding material | Hybrid of eastern erect blackberry and western trailing blackberry. Pentaploid (5x) but fully fertile. Thorny but throws thornless progeny so probably Tt (heterozygous thornless) for Merton thornlessness. Excellent fruit firmness, appearance, flavor, shape, texture and ease of separation from plant. Intemediate in cane habit (i.e. weak erect habit.)
| 1684614 | PI 641315 |
| 15 | PI 641316 | ORUS 1397-4 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2005 | DONATED | 09/20/2005 | | | | | Breeding material | Hybrid of eastern erect blackberry and western trailing blackberry. Pentaploid (5x) but fully fertile. Thorny but throws thornless progeny so probably Tt (heterozygous thornless) for Merton thornlessness. Excellent fruit firmness, appearance, shape, texture and ease of separation from plant. Good flavor. Crown forming, but, erect canes. Vigorous.
| 1684615 | PI 641316 |
| 16 | PI 653102 | 'Everthornless' | Rubus laciniatus Willd. | Illinois, United States | COR |  | Not Available | 2005 | DEVELOPED | 1995 | | | | | Cultivar | The present invention relates to a new and distinct trailing thornless blackberry cultivar named `Everthornless`. The `Everthornless` blackberry cultivar, and ex vitro somaclonal variant of the `Thornless Evergreen` cultivar of Rubus laciniatus willd., has good fruit yield, has a late ripening season and produces thornless, not thorny, shoots from its roots. The `Thornless Evergreen` is a periclinal chimera with a mutated thornless epidermal layer that encompasses internal cells which retain the genetic potential to produce thorns (technically, blackberry thorns are actually prickles that arise from epidermal tissue). As long as this periclinal arrangement is maintained, the plant stays thornless. However, any shoots arising from the internal tissue of a thorny genotype will be thorny and its gametes carry the thorny gene. Since blackberry roots develop from the thorny, internal parts of the stem, shoots coming from parental-type roots will always have thorns. Thorny canes interfere with cultural operations and harvest and may warrant abandonment of a planting. The `Thornless Evergreen` cultivar of Rubus laciniatus Willd., was introduced into shoot tip culture from virus-free plants. Shoot tips were proliferated and rooted in modified Murashige and Skoog plant tissue culture medium. These long-term cultures were used as research material for a project designed to identify an ex vitro nonchimeral thornless selection of `Thornless Evergreen`. Ex vitro plants of `Thornless Evergreen` were examined for trueness to the original type. Adventitious buds from root segments were used to screen for presence of the thornless mutation in internal tissues. First-test field trial plantings were established in Urbana and Dixon Springs, Ill. and growth, flowering, and fruit set were monitored. Vegetative propagules of selections from Illinois first-test field trials were sent to Oregon State University, North Williamette Experiment Station, Aurora, Oreg. for second-test field trials. From the second-test field trial, one somaclonal variant (a nonchimeral thornless plant) of `Thornless Evergreen` was selected based on its growth and fruitfulness. This selection is named `Everthornless`. The `Everthornless` produces thornless advantitious shoots from roots and is compact (primocanes which are less than 3 meters in length compared to `Thornless Evergreen` primocanes which are greater than 9 meters), which make it more suitable for the conventional trellising system of culture. Besides the shorter primocane length in the "Everthornless" cultivar, there are many other distinguishing features of the "Everthornless" cultivar relative to the parent "Thornless Evergreen" cultivar. Unlike the parent plant, the "Everthornless" cultivar produces thornless and not thorny shoots from its roots. In addition, the petioles of the "Everthornless" cultivar are quit different from the petioles of the parent "Thornless Evergreen". The petioles of the "Everthornless" cultivar are bent, a trait not found in the "Thornless Evergreen". Moreover, the "Thornless Evergreen" has clasping petioles that encircle the stem, while the petioles of the "Everthornless" have a swollen base, without the clasping petioles. | 1684607 | PI 653102 |
| 17 | PI 641306 | 'R. nutkanus Double White Thimbleberry ' | Rubus parviflorus Nutt. | Oregon, United States | COR |  | Not Available | 2004 | DONATED | 12/28/2004 | | | | | Cultivar | The lovely, 2' camellia-like flowerss of this special double flowered form of our native thimbleberry enhances yet again the handsome large, maple-like foliage of this thornless rounded 1-4'shrub. Sun-PSh/Med - USDA Zone 3. From website www.forestfarm.com in December 2004.
| 1668350 | PI 641306 |
| 18 | PI 638318 | R. ursinus LIG 2-6 | Rubus ursinus Cham. & Schltdl. | Oregon, United States | COR |  | Not Available | 2004 | DEVELOPED | 1998 | | | | | Breeding material | In 1993 and 1994 we collected a great deal of Rubus ursinus from the Pacific Northwest as seed as well as vegetative cuttings. We grew these populations out in a common garden and used a number of parents in crosses. While we began with several thousand seedlings we have culled that down to about a dozen. These were either chosen as superior clones, representatives of superior populations, or in an attempt to keep the selection of R. ursinus germplasm broad.by Chad Finn, Jim Luby, Rick Harrison, and Herbert Hoover in 1993. Elevation 792 m. Tested as having a ploidy of 12x by flow cytometry by Meng (1998). Collected as cutting. Originally selected for large crop, medium fruit, decent foliar disease tolerance. IN trials in BC, was susceptible to foliar disease, and was not very vigorous. Has been an excellent parent in crosses with 'Douglass' (8x), 'Black Butte' (6x) and 'Waldo' (6x thornless). Siblings have also been good selections. | 1664008 | PI 638318 |
| 19 | PI 638321 | ORUS 1117-11 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2004 | DONATED | 09/12/2004 | | | | | Breeding material | Trailing blackberry. For processing market. Thornless (Austin Thornless source). Later ripening than Waldo. Bridges gap between trailing and semi-erect season; Yield greater than Marion. Berry size similar to or smaller than Marion (about 5 g) | 1664011 | PI 638321 |
| 20 | PI 638257 | 'Black Diamond' | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2004 | DEVELOPED | 2004 | | | | | Cultivar | 'Black Diamond' is a thornless trailing blackberry from the US Department of Agriculture, Agricultural Research Service breeding program in Corvallis, Oregon. It was released in cooperation with Oregon State University and the Washington State University Agricultural Research Center. 'Black Diamond is high yielding, vigorous, adapted to machine harvesting and produces a very good processed product. In addition the fruit are firm enough and the drupelet epidermis tough enough to be suited to some fresh market applications. | 1652020 | PI 638257 |
| 21 | PI 638261 | ORUS 1431-1 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2004 | DONATED | 01/22/2004 | | | | | Cultivar | Cross made by Barney Douglass in 1996 and given to USDA- Oregon breeding program
Trailing blackberry. Thornless. Processing. Cross made my Barney Douglass, Hillsboro, OR. Seed given to USDA-ARS on his death. Selection made by USDA-ARS Thornless (Austin Thornless source). Outstanding fruit quality. Marion type flavor. | 1652024 | PI 638261 |
| 22 | PI 638263 | 'Nightfall' | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2004 | DEVELOPED | 2004 | | | | | Cultivar | 'Nightfall' is a thornless trailing blackberry from the US Department of Agriculture, Agricultural Research Service breeding program in Corvallis Oregon, released in cooperation with the Oregon State University Agricultural Experiment Station and the Washington State University Agricultural Research Center. 'Nightfall' has yields and fruit quality similar to 'Marion'. The plants are thornless and adapted to machine harvesting. Ploidy is hexaploid (2n = 6x = 42). | 1652026 | PI 638263 |
| 23 | PI 638265 | 'Wild Treasure' | Rubus hybr. | Oregon, United States | COR | | Not Available | 2004 | DEVELOPED | 2006 | | | | | Cultivar | Chad Finn cultivar release; cross made in 1998
`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. 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. `Wild Treasure?, tested as ORUS 1843-3, was selected in Corvallis, OR, in 1998 from a cross made in 1996 of GP 9-24 and `Waldo?. GP 9-24 is a selection made from a seedling population of R. ursinus that was collected as fruit from Mount Hebo (Oregon) in the Siuslaw National Forest at an elevation of 961 m. GP 9-24 was originally selected for its larger fruit size relative to other R. ursinus genotypes, low foliar disease incidence, and high fruit number per lateral. `Waldo? is a very high-quality thornless blackberry that has excellent foliar disease resistance, medium?large fruit, high yield, and short internodes that result in a somewhat dwarfed plant with brittle canes (Lawrence, 1989). Selections from this cross had the superior fruit quality and vigorous growth of R. ursinus combined with the good disease tolerance and thornlessness of `Waldo?. | 1652028 | PI 638265 |
| 24 | PI 638238 | 'Giant Douglass' | Rubus hybr. | Oregon, United States | COR |  | Not Available | 2002 | DEVELOPED | | | | | | Cultivar | Barney Douglass was a private blackberry breeder who lived in Hillsboro, Oregon. Giant Douglass is a nonpatented, thornless trailing blackberry selection from Barney's program. The parents were Sander x Lawrence, neither were cultivars, but he prefered to give his selections names than numbers. In our plots, the fruit quality was excellent, yields were very good and the plant was not susceptible to any particular diseases. Thornlessness was derived from Austin Thornless. Chad Finn 07/2003.
| 1648401 | PI 638238 |
| 25 | PI 643971 | 'Mammoth' | Rubus hybr. | Australia | COR |  | Not Available | 2000 | DONATED | | | | | | Cultivar | This is another blackberry-dewberry which since it partakes most of the blackberry parent, is usually listed with blackberries, The variety is grown very little in New York and the East because it is too tender to cold, but it is a standard bramble fruit in California, esteemed both for its healthy, vigorous, productive plants and for its enormous, handsome, richly flavored fruits. Well grown, the fruits are said to be larger than those of any other of the cultivated brambles. The plants of Mammoth are remarkable in that the canes grow upright several feet and then begin to trail, sometimes attaining a length of 25 or 30 feet. The canes are stout and covered with small, short spines. The plants are propagated from tips and usually fail to come from root cuttings, the method of propagating blackberries. The leaves are semi-evergreen in California. The blossoms are self-sterile and the loganberry is usually set for cross pollination. TYwo other varieties very similar to Mammoth are offered by nurserymen under the names Tribble and Cory Thornless. Californians say that they are distinct, however. The canes of the Cory Thornless are said to be thornless or nearly so. Mammoth was originated by Judge J. H. Logan, Santa Cruz, California, and is supposed to be a cross between the Texas blackberry and the western dewberry. The name was added to the list of fruits recommended for culture by the American Pomological Society in 1909. The variety has often been confused with Bartel which has also been called Mammoth.Plants very vigorous, semi-trailing, tender to cold, unproductive in the East, but very productive on the Pacific Slope, healthy; propagated from tips; reported that it cannot be increased by root-cuttings; canes very long, cylindrical to slightly angular, green mingled with a tinge of dull red, pubescent, glandular; prickles variable in length, small and short, unusually numerous, purplish red; leaflets 3, large, ovate, dark green, rugose, pubescent with dentate margins; petiole short, thick, very prickly. Flowers self-sterile, very late, in loose leafy clusters; petals white, oblong; peticles prickly, long, thick, eglandular; calyx tomentose, eglandular. Fruit early midseason, resists drought very well, said to ship poorly, very large regular in shape cylindrical-conic glossy black; druplets medium in size, very numerous, with strong coherence; core soft; flesh juicy, tender, rather sour until fully ripe when it becomes pleasantly subacid; quality good to very good if properly ripened. Hedrick. 1926. The small fruits of New York. p. 221.
Originated by Judge J. H. Logan in Santa Cruz, California
NAMED FOR= large fruit | 1608136 | PI 643971 |
| 26 | PI 643970 | 'Cacanska Bestrna' | Rubus hybr. | Former Serbia and Montenegro | COR |  | Not Available | 2000 | DONATED | 08/24/2000 | | | | | Cultivar | Cacanska Bestrna translatioin = Cacanska nugget | 1607817 | PI 643970 |
| 27 | PI 618391 | 'Young thornless - Ovenell clone' | Rubus hybr. | Washington, United States | COR |  | Not Available | 1999 | DONATED | 05/13/1999 | | | | | Cultivar | Named for B. M. Young, plant breeder. Thornless sport found and owned by Helen M. Ovenell of Washington.
| 1579751 | PI 618391 |
| 28 | PI 672601 | 'Apache' | Rubus hybr. | Arkansas, United States | COR |  | Not Available | 1999 | DEVELOPED | 1991 | | | | | Cultivar | 'Apache' resulted from a cross of Ark. 1007 x Navaho made in 1988. The original plant was selected in 1991 from a seedling field at the Univ. of Arkansas Fruit Substation, Clarksville. Tested as selection A-1798. 'Apache' produced yields higher than or similar to 'Arapaho' and 'Navaho'. Fruit weight of 'Apache' is a noteworthy attribute, Fruit weight of 'Apache' is a noteworthy attribute, in that it Is larger than either 'Arapaho' or 'Navaho'. 'Apache' was twice as large as 'Navaho' and 80% larger than 'Arapaho'. 'Apache' has excellent fruit fertility and full drupelet set. 'Apache' blooms 2 to 3 days later than 'Arapaho' and 2 to 3 days before 'Navaho'. First harvest date for 'Apache' averages 15 days later than 'Arapaho' and 5 days later than 'Navaho'. Peak and last harvest dates of 'Apache' compared to 'Navaho' are 7 and 6 days earlier, respectively. On average, 'Apache' has a fruiting period of 1O days shorter than 'Navaho'. Fruit of 'Apache' are blocky and conical and very attractive with a glossy, black finish (Figure 2). Fruit firmness was rated lower for 'Apache' compared to 'Navaho' but comparable to 'Arapaho'. Soluble solids concentration of 'Apache' averaged 10.7% over five years, compared to 11.4% for 'Navaho' and 9.6% for 'Arapaho'. Flavor of 'Apache' was rated very good and intermediate between 'Arapaho' and 'Navaho'. Postharvest evaluations of 'Apache' indicated that it did not store as well as 'Navaho', but did perform better than 'Shawnee' in storage trials. Seeds of 'Apache' are significantly heavier than either 'Arapaho' or 'Navaho'. Canes of 'Apache' are thornless, and 'Apache' more erect than either of the comparative cultivars. 'Apache' can be grown in a hedgerow without trellis support, when primocanes are tipped at 1.1 m to control primocane length and encourage lateral branching. Vigor and health of 'Apache' ratings were higher than those for either 'Arapaho' or 'Navaho'. Ratings for winter injury for 'Apache' have been comparable to 'Arapaho' or Navaho'. 'Apache' is moderately resistant to anthracnose and no disease problems have been experienced in evaluations where a single lime sulfur application was utilized. No orange rust [Gymnoconia nitens (Shwein.) F. Kern and H.W. Thurston] has been observed on 'Apache' in any plantings. Reaction of 'Apache' to rosette/double blossom [Cercosporella rubi (Wint.) Plakidas] has not been determined. 'Apache' is expected to perform well in areas where 'Arapaho' or 'Navaho' are adapted.
Cultivar release by James Moore and John Clark tested as selection A-1798
| 1575473 | PI 672601 |
| 29 | PI 638182 | 'Loch Ness' | Rubus hybr. | Scotland, United Kingdom | COR |  | Not Available | 1996 | DEVELOPED | 1988 | | | | | Cultivar | Loch Ness Orig. in Invergowrie, Scotland, by D.L. Jennings, Scottish Crop Res. Inst. Parentage complex. Introd. in 1988. Fruit: large; glossy black; good quality; ripens with or slightly earlier than Hull Thornless. Plant: semi-erect; spine free; less vigorous than chester, Hull and Black Satin; cold hardiness as good as or better than Chester and Hull.
| 1522034 | PI 638182 |
| 30 | PI 618476 | 'Burbank Thornless' | Rubus ulmifolius Schott | California, United States | COR | | Not Available | 1995 | DEVELOPED | | | | | | Cultivar | Another thornless blackberry selected by Luther Burbank in the 1890's. This is probably not Burbank Thornless. Fruit set was much less. Still growing in the city park that was once Burbank's home. Vigorous growth. | 1508010 | PI 618476 |
| 31 | PI 618399 | 'Arapaho' | Rubus hybr. | Arkansas, United States | COR |  | Not Available | 1993 | DEVELOPED | 08/01/1993 | | | | | Cultivar | The outstanding characteristics of 'Arapaho' are its thornless, erect, self-supporting canes, good fruit quality, earliness of ripening, and its ability to establish a full fruiting row quickly. 'Arapaho' will compliment 'Navaho in providing a long harvest season for high quality, thornless blackberries. 'Arapaho' is expected to perform well in areas in which 'Navaho' is adapted. Moore and Clark, 1993.Virus tested by Bob Martin in Vancouver, BC. Fruit: medium size; bright glossy black; firm; small seed size; short conic shape; earlier ripening than any other spineless blackberry cultivars; concentrated season of 4 weeks; high soluble solid concentration; stores well; excellent flavor fresh and processed. Plant: productivity similar to Navaho; moderately vigorous; very erect spineless canes; produces more primocanes from roots than navaho; good cold hardiness to -24 C. No symptoms of either orange rust or rosette have been observed despite high levels of inoculum of the respective causal organisms.Brooks and Olmo Register of Fruit and Nut Varieties, 1996.
cultivar release by James Moore and John Clark cross made in 1982, selected in 1985, tested as ARK 1536, introduced in 1993
NAMED FOR= named for the Arapaho Indians | 1015702 | PI 618399 |
| 32 | PI 618512 | Rosati-Jamieson Logan Thornless | Rubus ×loganobaccus L. H. Bailey | Emilia-Romagna, Italy | COR | | Not Available | 1992 | DEVELOPED | | | | | | Breeding material | Roots and seeds of the hexaploid material, originally from Dr. Rosati, Italy, were received from Dr. Andrew Jamieson (Nova Scotia, Canada) in 1992. The seeds were harvested from fruit produced by thornless plants. They may contain a dominant thornless gene. | 1015654 | PI 618512 |
| 33 | PI 618514 | ORUS 1683 | Rubus hybr. | Oregon, United States | COR | | Not Available | 1992 | DEVELOPED | | | | | | Breeding material | Thornless, black, crown gall susceptable, trailing
Cross made by George Waldo in Corvallis, Oregon Cross made in 1969
WHY NAMED= Selection (Thornless) for breeding
| 1015678 | PI 618514 |
| 34 | PI 672594 | 'Douglass' | Rubus hybr. | Oregon, United States | COR |  | Not Available | 1991 | DEVELOPED | 10/19/1993 | | | | | Cultivar | The new and distinct variety of thornless blackberry described herein originated from a hand-pollinated cross of two non-patented parents, Sander and Lawrence, which were also created by the applicant at his resident blackberry breeding facilities near Hillsboro, Oregon.The seeds resulting from this controlled hybridization were germinated in the applicant's greenhouse in the spring of 1985 and planted in an outdoor experimental flat in the early summer of 1985. The seedlings first lightly bore fruit during the summer of 1986. The subject cultivar was selected for its thornless cane, vigorous, traling vines, high berry productivity, and large, firm black fruit of high quality. During 1987, the above described cultivar was propagated asexually both by cane layering and cane cuttings for the purpose of further testing and evaluations by research horticulturists at Oregon State University's Department of Horticulture. The researchers found the cultivar to have outstanding potential.In 1989 Oregon State University's North Willamette Agricultural Experiment Station at Aurora, Oreg., included samples of the cultivar in their blackberry test plots. Test at other locations show that the cultivar may adapt to other areas of the Pacific Northwest outside of Northwestern Oregon.During all asexual multiplication, the characteristics of the original plant have been maintained and no aberrant phenotypes have appeared.Plants of the cultivar are highly vigorous and develop large diameter canes. Although nominally thornless, the 3 lower 12 -to 18-inch bases of the canes do contain small, soft incipient type spines similar to those found on raspberry canes. These small spines tend to disappear completely from the canes at a point about 12 to 18 inches above the ground level. The plants are genetically thornless, having genes for thornlessness derived from its distant "Austin Thornless" ancestor. Plants are moderately resistant to blackberry leaf and cane spot (Septoria rubi) which is a major cause of blighted foliage on a number of other Northwest adapted blackberry cultivarsFruit of the new cultivar ripens in mid-July about the same time as "Marion," a leading Northwest standard cultivar. The harvest period is about 20 days duration. The plants have never suffered from spring frosts and the canes have survived winter temperatures of 5* F. The fruit varies in shape from bluntly cone shaped to bluntly pointed cylindrical. The length of the fruit usually exceeds its diameter by about 40%. Fruit clusters are medium large and borne on long stout stems which facilitate easy picking. Flower fertility is high and -fruit drupelets tend to fill out the berries completely.
named for Bernard Douglass, discoverer
NAMED FOR= Barney Douglass, breeder | 1013634 | PI 672594 |
| 35 | PI 553355 | 'Perron's Black' | Rubus hybr. | Québec, Canada | COR |  | Not Available | 1990 | DEVELOPED | 1987 | | | | | Cultivar | Orig. in Quebec, Canada, by W.H. Perron and Co. Introd. in 1987. Selected from wild Rubus canadensis on the Appalachian plateau of southern Quebec. Fruit: black; slightly conical, 30 x 20 mm; high sugar content, aromatic. Plant: thornless, trailing canes; vigorous; no suckering; cold hardy.Brooks and Olmo
W. H. Perron and Co. Ltd. cultivar release
NAMED FOR= W. H. Perron and Co. Ltd., nurserymen | 1448327 | PI 553355 |
| 36 | PI 553343 | 'Navaho' | Rubus argutus Link | Arkansas, United States | COR |  | Not Available | 1989 | DEVELOPED | 1989 | | | | | Cultivar | Navaho--1988 (Patent #,) 6679) University of Arkansas (Ark. 583 x Ark. 63 I)--Navaho has great potential as the first upright, thornless blackberry having the best flavor of any blackberry. However, the berries are the smallest of all varieties. It has yields as high as 8,000 pounds or more per acre. The canes should be topped at shoulder height a couple of times during the season. A good berry for shipping.Orig. in Fayetteville, Ark., by J.N. Moore and J.R. Clark, Dept. of Horti-culture, Univ. of Arkansas. Introd. in 1988. (Thornfree x Brazos) x (Ark. 550 x Chero-kee); cross made in 1977; selected in 1980; tested as Ark. 1172. U.S. plant patent 6679; 21 Mar. 1989; assigned to Univ. of Arkan-sas. Fruit: medium (5.0 g); short conic; glossy black; very firm; stores well; high soluble solids, excellent flavor fresh and processed; ripens late, 7 days after Shaw-nee. Plant: genetically thornless, erect canes; suckers poorly from roots; not as productive as Shawnee. Plants and fruit moderately resistant to anthracnose; sus-ceptible to orange rust; moderately resis-tant to rosette. Plants have shown good cold hardiness to -25C.BandO
James N. Moore and John R. Clark cultivar release named for Navaho Indians
Cultivar Synonym= Tested as Ark. 1172
NAMED FOR= Navaho Indians | 1448315 | PI 553343 |
| 37 | PI 553342 | 'Thornfree' | Rubus hybr. | Maryland, United States | COR |  | Not Available | 1989 | DEVELOPED | 1966 | | | | | Cultivar | For local market and home garden
named for thornless condition
WHY NAMED= Thornless habit
| 1448314 | PI 553342 |
| 38 | PI 553334 | 'Waldo' | Rubus hybr. | Oregon, United States | COR |  | Not Available | 1988 | DEVELOPED | 1989 | | | | | Cultivar | Orig. in Corvallis, Ore., by F.J. Lawrence, U.S. Dept. of Agriculture and Oregon State Univ. Introd. in 1989. ORUS 1122 x ORUS 1367; selected in 1976; tested as ORUS 2031. Fruit: large, equal in size to Marion; firmer than Marion; glossy black; good shelf life; good quality fresh and processed. Plant: thornless; growth habit similar to Evergreen; moderately vigorous; yields high (9-12 t-ha-1 in Oregon); more resistant to cane and leaf spot than Marion or Boysen; slightly less cold hardy than Marion.BandO
Francis J. Lawrence cultivar release named for George F. Waldo
Cultivar Synonym= Tested as ORUS 2031
NAMED FOR= George F. Waldo, Rubus breeder extraordinaire | 1448306 | PI 553334 |
| 39 | PI 553327 | 'Lincoln Logan' | Rubus hybr. | South Island, New Zealand | | | Historic | 1987 | DEVELOPED | 1986 | | | | | Cultivar | Fruit color, flavor and texture indistinguishable from Thornless Loganberry, plant morphologically similar Orig. in Lincoln, New Zealand, by H.K. Hall, M.H. Quazi, and R.M. Skirvin, Crop Res. Division, DSIR, Christchurch. Introd. in 1986. A tissue culture-derived genetically thornless (non-chimeral) sport of Thornless Loganberry. Fruit: color, flavor, and texture indistinguishable from Thornless Loganberry. Plant: morphologically similar to Thornless Loganberry; primocanes vigorous, green, prickle (thorn)-free; produces only thornless shoots from roots. Seedling popula-tions include both thorned and thornless offspring.BandOFruit color, flavor and texture indistinguishable from Thornless Loganberry, plant morphologically similar
named for the town of Lincoln, New Zealand
NAMED FOR= Lincoln University and Loganberry | 1448299 | PI 553327 |
| 40 | PI 553326 | 'Bedford Thornless' | Rubus hybr. | England, United Kingdom | COR |  | Not Available | 1987 | DEVELOPED | 1930 | | | | | Cultivar | Hexaploid. Late to flower but rapid fruit maturation
named for Bedford, England
Cultivar Synonym= Q26678
NAMED FOR= Town of Bedford, England where it originated | 1448298 | PI 553326 |
| 41 | PI 553322 | 'Chester Thornless' | Rubus hybr. | Illinois, United States | COR |  | Not Available | 1987 | DEVELOPED | 1985 | | | | | Cultivar | Chester--1985 Maryland (Tbornfree x Darrow)--Chester is the most winter hardy of the thornless varieties. It is a late season berry with large fruit and mild flavor. Chester is most resistant to cane blight caused by Botryosphaeria dothidea. The fruit is of high quality, does not soften or leak color on hot sunny days. Fruit: Large, high quality, very firm, does not soften or lose color in hot weather. Ripens late with Thornfree. Plant: vigorous, semi-trailing thornless canes, very productive, cold hardy. Most resistant of eastern United States thornless blackberries to cane blight. Propagates readily by tip layering, softwood cuttings or micropropagation.
J. W. Hull cultivar by USDA and Southern Illinois University named for Chester Zych, researcher at University of Illinois
Cultivar Synonym= Tested as SIUS 68-6-17, Chester Thornless
NAMED FOR= Dr. Chester Zych, retired fruit breeder at Univ. of Illinois | 1448294 | PI 553322 |
| 42 | PI 553185 | R. ulmifolius | Rubus ulmifolius Schott | Oregon, United States | COR | | Not Available | 1987 | COLLECTED | 01/04/1986 | Portland, in East Multnomah County in private orchard land | 45.58333000, -122.66667000 | 100 | Portland, in East Multnomah County in private orchard land | Wild material | Chimeral thornless clone with shiny leaves
Judith Emerson selection
| 1448157 | PI 553185 |
| 43 | PI 553133 | R. canadensis NC 86-34-2 | Rubus canadensis L. | North Carolina, United States | COR | | Not Available | 1986 | COLLECTED | 08/05/1986 | Fork Ridge Overlook on the Blue Ridge Parkway | 35.41667000, -83.00000000 | | Fork Ridge Overlook on the Blue Ridge Parkway | Wild material | Canes generally thornless, typical variation of frt size | 1448105 | PI 553133 |
| 44 | PI 553135 | R. canadensis NC 86-38-2 | Rubus canadensis L. | North Carolina, United States | COR | | Not Available | 1986 | COLLECTED | 08/05/1986 | Clingman's Dome Road, Swain County. Roadsides | 35.50000000, -83.41667000 | 1825 | Clingman's Dome Road, Swain County. Roadsides | Wild material | Thornless primocanes and typical variation for fruit size | 1448107 | PI 553135 |
| 45 | PI 553140 | R. canadensis NC 86-44-6 | Rubus canadensis L. | North Carolina, United States | COR | | Not Available | 1986 | COLLECTED | 08/05/1986 | Boone, along Roan Mountain Gardens Road | 36.00000000, -82.08333000 | 2050 | Boone, along Roan Mountain Gardens Road | Wild material | Select clone, primocanes to 2.5m, almost thornless | 1448112 | PI 553140 |
| 46 | PI 553314 | 'Lincoln Logan' | Rubus hybr. | South Island, New Zealand | COR |  | Not Available | 1986 | DEVELOPED | 1986 | | | | | Cultivar | Orig. in Lincoln, New Zealand, by H.K. Hall, M.H. Quazi, and R.M. Skirvin, Crop Res. Division, DSIR, Christchurch. Introd. in 1986. A tissue culture-derived genetically thornless (non-chimeral) sport of Thornless Loganberry. Fruit: color, flavor, and texture indistinguishable from Thornless Loganberry. Plant: morphologically similar to Thornless Loganberry; primocanes vigorous, green, prickle (thorn)-free; produces only thornless shoots from roots. Seedling popula-tions include both thorned and thornless offspring.BandOFruit color, flavor and texture indistinguishable from Thornless Loganberry, plant morphologically similar
named for the town of Lincoln, New Zealand
NAMED FOR= Lincoln University | 1448286 | PI 553314 |
| 47 | PI 553110 | 'Whitford Thornless' | Rubus argutus Link | Illinois, United States | COR |  | Not Available | 1985 | DEVELOPED | 1967 | | | | | Cultivar | Diploid, spine-free variant of R. argutus
Recessive gene for spinelessness.
Erect, deeply furrowed, thornless, non-commercial
named for A. M. Whitford, discoverer
| 1448082 | PI 553110 |
| 48 | PI 553951 | 'Hillquist' | Rubus argutus Link | Virginia, United States | COR | | Not Available | 1985 | DEVELOPED | 1949 | | | | | Cultivar | Original letter accompanying donated germplasm Department of BioEnvironmental ScienceN.Y. S. Agric. Expt. Sta.Geneva, N.Y. 14456November 5, 1985Dear Dr. Jahn,Last spring Dr. Sanford left a note on my desk to send you some Whitford Thornless blackberry plants. I did not then have any to send but do now and hope they do not freeze enroute!I am also enclosing plant of a diploid wild blackberry we call Hillquist, after a Mrs. L. G. Hillquist of Ashland, Virginia, who sent plants here way back in 1949. This clone is unique in that, here in Geneva at least, it exhibits a rudimentary degree of primocane-fruiting- the only blackberry, of any ploidy, we know of which possesses the fallbearing character. This characteristic makes Hillquist potentially important germplasm for blackberry breeding. If the fallbearing character could be transferred into our upright tetraploid lines then lack of hardiness would become much less of a problem for cold areas. The virus status of both clones is unknown. Our virus-indexing man here tells me it is very difficult to get symptoms on quinoa out of blackberries for some reason. Perhaps ELISA might do the trick.Good luck with these plants. If there are any other clones you seek that we might have, let me know.Sincerely,Jack ReichResearch Support Specialist Named for L. G. Hillquist, discoverer.NAMED FOR= Mrs. L. G. Hillquist, discoverer | 1448923 | PI 553951 |
| 49 | PI 553306 | ORUS 1622 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 1984 | DEVELOPED | 1967 | | | | | Breeding material | Cross made by George Waldo in Corvallis, Oregon Cross made in 1967
| 1448278 | PI 553306 |
| 50 | PI 553304 | ORUS 1278 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 1984 | DEVELOPED | | | | | | Breeding material | Cross made by George Waldo in Corvallis, Oregon Cross made in 1960
| 1448276 | PI 553304 |
| 51 | PI 553299 | 'Hull Thornless' | Rubus hybr. | Maryland, United States | COR |  | Not Available | 1983 | DEVELOPED | 1981 | | | | | Cultivar | 'Hull Thornless' (Rubus sp., is a vigorous and productive thornless blackberry cultivar with firm, sweet, fruit. It is named for the late John W. (Jack) Hull, formerly of the University of Maryland. the University of Arkansas, and the U.S. Department of Agriculture, who spent most of his life breeding blackberries and raspberries. 'Hull Thornless' is the fifth in a series of tetraploid, genetically thornless blackberry hybrids developed by the USDA and cooperating agencies (4). It is adapted principally to USDA Plant Hardiness Zones 6-8.Origin'Hull Thornless'. tested as SIUS 68-6-6. originated from a cross made in 1968 by Jack Hull of SIUS 47 x by 'Thornfree' (Fig. 1) and selected by him in 1972 at Carbondale, Illinois. This cross was a repeat of an earlier cross which yielded the promising selections SIUS 64-21-8 ('Dirksen Thornless') and SIUS 64-21-11 ('Black Satin'). Since being selected, 'Hull Thornless' has been tested principally in Maryland and Ohio.Description and performance'Hull Thornless' plants are multistemmed with biennial thornless, vigorous canes. They are essentially crown-forming, and semi-erect after the first year in the field. 'Hull Thornless' is winter-hardy south of a line from Urbana, Ill., to central Ohio, to western Maryland, southern Pennsylvania and northern New Jersey (Zone 6 on the USDA Plant Hardiness Zone Map.) In a greenhouse forcing trial at Beltsville, 'Hull Thornless' needed 750 consecutive hours under 7.2'C to satisfy its chilling requirement. Under conditions of high fertility. and good moisture, plants should be set at 1.8 to 3 m apart and trained onto a 2- or 3-wire trellis. Mature cane bases can be 5 cm in diameter, are self-supporting, and can grow to 4-5 m in a year. Canes are usually topped at 2 meters and lateral shoots are forced for fruiting the following year.'Hull Thornless' is similar to 'Black Satin' in yield and fruit size (Table 1).The thornless blackberries yield very well at an early age (third year) and the yield rankings of the several cultivars at the same age do not vary appreciably with soil difference (compare trial 1 and trial 2 at age 3 years). 'Hull Thornless* and 'Black Satin' are usually the heaviest yielding and the largest fruited of the 5 thornless cultivars, ranging from 8 to 3 g/berry over the harvest season.'Hull Thornless'. on a heavy soil at Beltsville, bloomed 8-9 days later than 'Dirksen Thornless' and 'Black Satin', but it ripened between 'Dirksen Thornless' and 'Black Satin'. On a light soil, 'Hull Thornless' ripened ahead of 'Dirksen Thornless' and 'Black Satin'. Fully ripe fruit of 'Hull Thornless' is firmer, sweeter, colors better and is tougher than 'Black Satin'. 'Hull Thornless' fruit, like that of the other named cultivars, makes a superior jelly or baked product.The superior yielding ability of *Hull Thornless' appears to result from a combination of high number of berries/fruiting lateral and large fruit size, whereas that of 'Black Satin' is attributed to many fruiting laterals/ cane and large fruit size. 'Hull Thornless' and 'Black Satin' do not differ in number or length of bearing canes per plant. The high vigor of 'Hull Thornless' and 'Black Satin' contributes to continued productivity with increasing plant age. 'Dirksen Thornless . , which has lower plant vigor, shows declining yield with advancing plant age. 'Hull Thornless' plants can be well propagated by tip layering, by rooting of I -node softwood stem cuttings (6), or by micropropagation techniques (2).
introduced by USDA tested as SIUS 68-6-6.
Cultivar Synonym= Tested as SIUS 68-6-6
WHY NAMED= Thornless habit
NAMED FOR= Jack Hull, who made the original cross in 1968 | 1448271 | PI 553299 |
| 52 | PI 553292 | 'Austin Thornless' | Rubus hybr. | Oklahoma, United States | COR |  | Not Available | 1983 | DEVELOPED | 1924 | | | | | Cultivar | Austin Thornless (Thornless Austin).-Orig. in Tecumseh, Okla., by J. Parker. Introd. in 1924. Reported to be an open-pollinated seedling of Mayes; selected about 1918. Fruit: resembles Mayes. Bush: dewberry type; shy bearer; thornlessness dominant; an octoploid (2n = 8x = 56). Received such extensive damage from rabbits feeding on variety during the winter that variety is no longer propagated. valley.-Orig. in Geneva, N.Y., by George L. Slate, New York State Agr. Expt. Sta. Introd. in 1950. Pt; selected about 1929. Fruit: large; medium firm; quality good; subacid. Bush: reliable productivity.
Cultivar Synonym= Thornless Austin, Austin Thornless
The octoploid nature of 'Austin Thornless' and its dominant gene for spinelessness make the cultivar suitable for crossing with other forms to produce spine-free hybrids similar to the Loganberry. Early attempts to use it in breeding met with only moderate success but recent work is more promising. Jennings, 1988. | 1448264 | PI 553292 |
| 53 | PI 553296 | ORUS 1280 | Rubus hybr. | Oregon, United States | COR |  | Not Available | 1983 | DEVELOPED | | | | | | Breeding material | Cross made by George Waldo in Corvallis, Oregon Cross made in 1960
| 1448268 | PI 553296 |
| 54 | PI 553272 | 'Black Satin' | Rubus hybr. | Illinois, United States | COR |  | Not Available | 1983 | DEVELOPED | 1974 | | | | | Cultivar | Black Satin--1973 Maryland (Thornfree x Darrow)--It produces early midseason berries with semi-erect canes. It is more winter hardy than Smoothstem or Thornfree.Orig. in Carbondale, Ill., by U.S. Dept. of Agriculture and Southern Il-linois Univ. Introd. in 1974. SIUS 47 (US 1482 x Darrow) x Thornfree; cross made in 1964; selected in 1967 by J.W. Hull; tested as SIUS 64-21-11. Fruit: large; skin black, loses glossiness at maturity; less astringent than Thornfree; ripens 7-10 days later than Dirksen Thornless, 2 weeks earlier than Thornfree. Bush: thornless; semi-erect; hardy; more vigorous and productive than Dirksen Thornless, otherwise very similar.BandO
descriptive name of fruit
Cultivar Synonym= Tested as SIUS 64-21-11
NAMED FOR= Black color of the fruit | 1448244 | PI 553272 |
| 55 | PI 553276 | 'Merton Thornless' | Rubus hybr. | England, United Kingdom | COR | | Not Available | 1982 | DEVELOPED | 1936 | | | | | Cultivar | Orig. in Merton Park, London, England, by M.B. Crane, John Innes Inst. Introd. in England in 1936, introd. in the U.S. in 1944. Plant patent 571; 9 Mar. 1943; assigned to Armstrong Nurseries, Ontario, Calif. John Innes (Rubus ulmifolius inermis x R. thyrsiger) x a thornless selfed John Innes seedling. Fruit: large; round; drupelets large; long-mIdseason ripening. Bush: thornless; vigorous grower; crop production in U.S. has not been very high; tetraploid. Useful in breeding thornless plants. No longer propagated for its fruit. Mainly used as a source of thornlessness in breeding. BandO
cultivar release by M.B. Crane, John Innes Institute Introduced in England in 1936, introduced in the U.S. in 1944
NAMED FOR= Merton Park, London | 1448248 | PI 553276 |
| 56 | PI 554060 | 'Burbank Thornless' | Rubus ulmifolius Schott | California, United States | COR |  | Not Available | 1982 | DEVELOPED | 1914 | | | | | Cultivar | Very vigorous, fruit uniform, firm, good flavor
named by Luther Burbank for thornless stems
NAMED FOR= L. Burbank, breeder | 1449032 | PI 554060 |
| 57 | PI 553251 | 'Dirksen Thornless' | Rubus hybr. | Illinois, United States | COR |  | Not Available | 1981 | DEVELOPED | 1974 | | | | | Cultivar | Orig. in Carbondale, Ill., by U.S. Dept. of Agriculture and South-ern Illinois Univ. Introd. in 1974. SIUS 47 (US 1482 x Darrow) x Thornfree; cross made in 1964; selected in 1967 by J.W. Hull; tested as SIUS 64-21-8. Fruit: clusters contain 20 or more large blackberries, which become slightly dull in appearance at maturity; flavor markedly less astringent than Thornfree; ripens first 2 weeks of July, 3 weeks before Thornfree. Bush: thornless; semi-erect; hardier, more vigorous, and more productive than Thornfree; vigorous primocanes of mature plants may grow 12-15 ft in length and 1 1/2 inches in diam.; does not sucker readily; tolerant to septoria leaf spot and anthracnose, somewhat tolerant to mildew.BandO
named for Senator Dirksen from Illinois
| 1448223 | PI 553251 |
| 58 | PI 553257 | 'Smoothstem' | Rubus hybr. | Maryland, United States | COR |  | Not Available | 1981 | DEVELOPED | 1966 | | | | | Cultivar | Orig. in Beltsville, Md., by D.H. Scott and D.P. Ink, Crops Res. Division, U.S. Dept. of Agriculture. Introd. in 1966. US 1482 (Merton Thornless x US 1411) open-pollinated; seed collected in 1955; selected in 1958. Fruit: large; blunt conic; skin jet black; firm; good flavor; matures about 1 Aug. or 1 month later than Eldorado. Bush: canes thornless; semi-upright; 8-10 ft long, up to 1 1/4 inches diam. at base; fruiting laterals bearing 35-40 fruit; nonsuckering; winter hardy at Beltsville and southward; propagation by tip root-ing or cuttings; productive. For local market and home garden.Brooks and Olmo, 1972.
cultivar release by D.H. Scott and D.P. Ink seed collected in 1955; selected in 1958 introduced in 1966.
NAMED FOR= lack of thorns on a smooth stem | 1448229 | PI 553257 |
| 59 | PI 553258 | 'Bauer's Thornless' | Rubus ×loganobaccus L. H. Bailey | United States | COR |  | Not Available | 1981 | DEVELOPED | 1934 | | | | | Cultivar | This discovery is a new variety of thornless Logan blackberry having large, strong and relatively nonbrittle canes, the fruit of which is larger than, but similar as to color and taste to the fruit of the Logan blackberry from which this new variety has been propagated. Also this new variety is further distinguished from the parent variety in the respect that it bears longer and is more prolific. This new variety was discovered by us as a sport that was growing from a cane of a Logan blackberry plant and from its first appearance indicated an individual variation from the parent stock or cane in the respect that it was thornless.This sport was discovered in our garden in the city of San Gabriel, county of Los Angeles, and State of California, growing on one of the plants of a row of Logan blackberries, and immediately after this discovery we held a consultation, and concluded to begin a propagation of this sport to see if it would retain permanently its thornless character.This propagation included cutting away at once the thorny portion of the parent Logan blackberry plant and all the roots thereof, except that to which the sport was directly connected. This sport was then cultivated until it grew to the usual length and spread of an ordinary Logan blackberry plant, and at the proper time, in September 1930, we laid the tips of this thornless cane in the ground to develop a new variety which, when developed and replanted in the spring of 1931, grew into thornless plants, some of which bore fruit that year which, as to size, color and taste resembled the fruit of the parent plant, except that its fruiting period began much earlier than Logan blackberries growing in the same garden under like conditions, and continued in full fruitage much longer than the Logan blackberries.In September of 1931 we again laid the tips of the thornless canes developed from the thornless sport which we discovered, and in the spring of 1932 we planted and cultivated the plants developed by the 1931 tipping; and all of these plants grew true to the sport in the respect that they are entirely thornless, and from this development we are assured that the thornless characteristic of this new variety is permanent.In the accompanying drawing the new variety of Logan blackberry, together with its fruit and foliage is illustrated, which illustration was made by the artist from cuttings taken from plants growing In our garden showing the parent Logan blackberry cane and also a cane of the new variety.
technically this clone should be called 'Bauer Thornless Logan'. = Thornless Loganberry, Bauer Thornless Logan Discovered by B. E. and G. R. Bauer in 1929
Cultivar Synonym= Bauer's thornless, Logan thornless, thornless Logan
WHY NAMED= thornless sport of Loganberry
| 1448230 | PI 553258 |
| 60 | PI 553261 | 'Carolina' | Rubus hybr. | North Carolina, United States | COR |  | Not Available | 1981 | DEVELOPED | 1955 | | | | | Cultivar | Orig. in Raleigh, N.C., by Carlos F. Williams, North Carolina Agr. Expt. Sta. Introd. in 1955. Austin Thornless x Lucretia; cross made in 1938; selected in 1942. Fruit: quality good both fresh and processed; re-sembles Lucretia. Bush: dewberry type; thorny; more vigorous, more productive, and more resistant to septoria leaf spot than Lucretia.BandO
named for the state of North Carolina
NAMED FOR= North Carolina | 1448233 | PI 553261 |
| 61 | PI 553356 | 'Canby' | Rubus idaeus L. subsp. idaeus | Oregon, United States | COR |  | Not Available | 1981 | DEVELOPED | 1953 | | | | | Cultivar | Keeps very well fresh, erect, thornless Developed in Oregon, introduced in 1953. Fruit: Large, good flavored, firm, juicy, bright red with fine quality. Good for freezing, canning, cooking, and fresh eating. The canes are vigorous and productive. Heavy bearer. Canby is virus resistance and has aphid immunity from AG1 gene from Lloyd George. Sensitive to Root Rot . Not adapted to heavy soils. Grows best with cooler summers. Winter hardy in zones 4-8.Canes pubescent, dull, not branched; prickles many at base of cane, few to none center of cane, few top third of cane, exceedingly short, stiff, color at base and tip purple base slightly raised, round, conspicuous; leaves ternate and quinate, slightly plicate, flat to saucer folded, terminal leaflet on quinate leaves oval; apex medium length, acute; serrations moderately dull, moderately coarse, moderately shallow; basal leaflets sessile, decidedly overlapping with occasional reflexed bases; length/width ratio less than 2.Outstanding characteristics: absence of prickles in center of cane; exceedlingly short prickles; saucer fold on some leaves; decided overlapping of basal leaflets with occasional reflexed bases. Roberts, O.C. and A. S. Colby. 1957. Red and purple raspberries: their idendification from plant primocanes. University of Massachusetts Agri. Expt. Sta. Bul. 523. 27 pp.
Cultivar released by George Waldo
Cultivar Synonym= Thornless Red Raspberry (in Europe), also Wonder Thornless
WHY NAMED= named for the town of Canby, Oregon
NAMED FOR= Canby, Oregon | 1448328 | PI 553356 |
| 62 | PI 553651 | Thornless Evergreen | Rubus laciniatus Willd. | Oregon, United States | COR |  | Not Available | 1981 | COLLECTED | | | | | | Cultivar | Late to very late season, excellent vigor. Fruits medium sized, very dark to black, glossy. Tart flavor
Named for thornless clone of the species.
Cultivar Synonym= Thornless Evergreen
WHY NAMED= Thornless habit
NAMED FOR= the State of Oregon | 1448623 | PI 553651 |