Details for: PI 553322, Rubus hybr., 'Chester Thornless'


Summary Data
Taxonomy:
Rubus hybr.
Cultivar:
'Chester Thornless'
Origin:
Developed – Illinois, United States
Received by NPGS:
12 May 1987
Improvement Status:
Cultivar
Form Received:
Plant
Life Form:
Perennial
Life Cycle:
Perennial
Availability
This accession is not available. Contact site for status.
Request are accepted July 1st - Sept. 30th; Ships in Nov.

  
Images (4 total. Click on image for more.)

Image

Core Passport Data
Taxonomy:
Rubus hybr.
Cultivar:
'Chester Thornless'
Origin:
Developed – Illinois, United States
Received by NPGS:
12 May 1987
Improvement Status:
Cultivar
Form Received:
Plant
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Developed
1985.
Illinois, United States
Comment: Cultivar introduced in 1985
Developer(s):
Donated
12 May 1987.
Oregon, United States
Comment: Received from R. Converse to NCGR-Corvallis
Donor(s):
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

Group name: Rubus: thornless
Note: 
To search for accessions in this group, click the following link. Rubus: thornless

Accession Names and Identifiers
'Chester Thornless'
Type: Cultivar name
Group: BLACKBERRY

Chester
Type: Duplicate accession name
Group: BLACKBERRY

SIUS 68-6-17
Type: Developer identifier
Group: OTHERNUM
other identifier

CRUB 839
Type: Site identifier
Group: LOCAL
Corvallis local number

Narrative
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
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
LanguageNameAlternate namenoteseqCitation
EnglishMarionberry  1Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications
EnglishOlallieberry  1Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications
Englishyoungberry  1Facciola, S. 1998. Cornucopia II: a source book of edible plants Note: Kampong Publications
Annotations
Other Links
Actions
Pathogens
Elisa test
  • Tomato ringspot nepovirus. NEGATIVE 18 Mar 2015. plate 2015-07 Inventory: CRUB 839 .001 PL
  • Tobacco Ringspot Nepovirus. NEGATIVE 18 Mar 2015. plate 2015-07 Inventory: CRUB 839 .001 PL
  • Raspberry bushy dwarf virus. NEGATIVE 18 Mar 2015. plate 2015-07 Inventory: CRUB 839 .001 PL
  • Apple Mosaic Ilarvirus. NEGATIVE 18 Mar 2015. plate 2015-07 Inventory: CRUB 839 .001 PL
Vouchers
Citations
Pedigree
Description:
SIUS 47 (US 482 x Darrow) x Thornfree

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
CYTOLOGICCHROMOCOUNTCHROMOCOUNT28 RUBUS.Thompson.ChromosomeCount.1995CRUB 839 .001 PLNot Available
CYTOLOGICPloidy EquationEquation of the ploidy of the plant. Example 2n = 2x = YY2n = 4x = 28 RUBUS.Thompson.ChromosomeCount.1995CRUB 839 .001 PLNot Available
GENSTOCKRUBUS CORE SUBSETA flag to indicate the accession is part of the core subset  RUBUS.CORE.1998 Not Available
PRODUCTIONPROPAGATIONPropagation by tip layering or rooted cuttingstip RUBUS.PROPAGATION.2017CRUB 839 .001 PLNot Available
PRODUCTIONTYPECROP TYPEB - BLACKBERRY RUBUS.CORVALLIS.STD.1994 Not Available