Details for: PI 618452, Rubus hybr., 'Siskiyou'

Summary Data

Taxonomy:

Rubus hybr.

Cultivar:

'Siskiyou'

Origin:

Developed – Oregon, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

15 Jul 1991

Improvement Status:

Cultivar

Reproductive Uniformity:

Hybrid

Form Received:

Plant

Life Form:

Perennial

Life Cycle:

Perennial

Availability

This accession is not available. Contact site for status.

National Clonal Germplasm Repository

Request are accepted July 1st - Sept. 30th; Ships in Nov.

Images (1 total. Click on image for more.)

Core Passport Data

Taxonomy:

Rubus hybr.

Cultivar:

'Siskiyou'

Origin:

Developed – Oregon, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

15 Jul 1991

Improvement Status:

Cultivar

Reproductive Uniformity:

Hybrid

Form Received:

Plant

Life Form:

Perennial

Life Cycle:

Perennial

Source History

Developed

1998.
Oregon, United States

Developer(s):

Lawrence, Francis J., National Clonal Germplasm Repository

Donated

15 July 1991.
Oregon, United States
Comment: Received from Lawrence to NCGR-Corvallis
Donor(s):

Lawrence, Francis J., National Clonal Germplasm Repository

Accession Group(s)

Group name: Rubus: blackberries
Note: bramble cultivars fruit with solid center
To search for accessions in this group, click the following link. Rubus: blackberries

Accession Names and Identifiers

'Siskiyou'

Type: Cultivar name

Group: BLACKBERRY

ORUS 830-4

Type: Developer identifier

Group: BLACKBERRY

ORUS 830-4

Type: Site identifier

Group: OTHERNUM

other identifier

CRUB 1387

Type: Site identifier

Group: LOCAL

Corvallis local number

Narrative

Rubus ursinus is the primary species in Siskiyou, but R. idaeus and R. armeniacus (R. procerus) are present in the pedigree. Similar in vigor to 'Marion' but more tolerant of environmental stress. Canes are more tolerant than 'Marion' and less so than 'Kotata'. Canes are more resistant to cane and leaf spot (Septoria rubi Westend) than 'Marion'; however, cane botrytis (Botrytis cinerea Pers.:Fr.) has been observed. No symptoms of yellow rust [Kuehneola uredinis (Link) Arth.] infection and in 1997 no symptoms of the pathogen causing drupelets of 'Kotata' and 'Marion' to turn brown and dry. Siskiyou has shown less winter injury to flower buds and canes than 'Marion'. Siskiyou produces very large, firm, and flavorful berries, early in the blackberry season. Siskiyou averaged 7.8 grams/fruit, larger than 'Kotata' (5.1 grams) or 'Marion' (5.1 grams), but less than 'Black Butte' (9.0 grams). Fresh berries are similar to 'Marion' in color but hold their color better under refrigerations. Siskiyou is firmer than 'Kotata' and 'Black Butte', and much firmer than 'Marion'. The fruit are uniformly shaped and have a large number of drupelets per fruit. Siskiyou tends to fruit on tertiary or late-season flowers that have the tip of the fruit poorly set. Fresh and processed fruit of Siskiyou have excellent flavor; they are not as intense and aromatic as 'Marion' and 'Olallie' but are more similar to 'Kotata'. When tested as a processed product, Siskiyou has been rated very good but not as outstanding as 'Marion'. Siskiyou is one of the earliest ripening trailing cultivars, ripening before 'Kotata' and with 'Black Butte'. Yields of Siskiyou have been similar to 'Kotata', less than 'Marion' and greater than 'Black Butte'. Siskiyou has tested negative for tomato ringspot, raspberry bushy dwarf, and tobacco streak viruses by ELISA and has indexed negative on grafting to R. occidentalis.

Oregon State and USDA selection tested as ORUS 830-4

Rubus hybr.

Genus:

Rubus

Family:

Rosaceae

Subfamily:

Rosoideae

Tribe:

Rubeae

Nomen number:

104971

Comment:

interim designation used in GRIN for Rubus hybrids which lack an acceptable binomial

Verified:

04/11/1988 by ARS Systematic Botanists.

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Heterotypic Synonym(s)
Rubus ×proteus C. H. Stirt. ex L. Hend., nom. inval.

Common names

Language	Name	seq	Citation
English	Marionberry	1	Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications
English	Olallieberry	1	Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications
English	youngberry	1	Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Sample Size	Study	Inventory	Availability
PRODUCTION	PROPAGATION	Propagation by tip layering or rooted cuttings	tip		RUBUS.PROPAGATION.2017	CRUB 1387 .001 PL	Not Available