Skip to main content
Skip to site map
United States Department of Agriculture
Agricultural Research Service
0
Cart
Welcome!
***THIS IS A TESTING SITE ONLY.***
Please do not place germplasm orders on this site.
GRIN-Global
Menu
USDA National Plant Germplasm System
Version:
2.3.12 [npgstest -- bhunt2312-0204]
Menu
Accessions
Descriptors
Reports
GRIN Taxonomy
Search Taxonomy
Crop Wild Relative Data
Nodulation Data
Regulations
World Economic Plants
About GRIN Taxonomy
GRIN
USDA Genetic Resource Collections
About GRIN-Global
Use of Cookies
NPGS Distribution Policy
Software Disclaimer
GRIN-U
Help
Contact Us
Your Profile
Your Profile
Your Web Request History
Your Address Book
Your Wish List
Details for: PI 541561,
Pyrus communis
L. subsp.
caucasica
(Fed.) Browicz, Mag 2
Summary
Passport
Taxonomy
Other
Pedigree
IPR
Observation
Summary Data
Taxonomy:
Pyrus communis
L. subsp.
caucasica
(Fed.) Browicz
Top Name:
Mag 2
Origin:
Collected – Russian Federation
Maintained:
National Clonal Germplasm Repository
Received by NPGS:
21 Feb 1981
Improvement Status:
Wild material
Form Received:
Plant
Life Form:
Tree
Life Habit:
Tree
Availability
This accession is not available. Contact site for status.
National Clonal Germplasm Repository
Request are accepted Sept. 1st - Nov. 30th; Ships Jan.- Mar.
There are no images for this accession.
Core Passport Data
Taxonomy:
Pyrus communis
L. subsp.
caucasica
(Fed.) Browicz
Top Name:
Mag 2
Origin:
Collected – Russian Federation
Maintained:
National Clonal Germplasm Repository
Received by NPGS:
21 Feb 1981
Improvement Status:
Wild material
Form Received:
Plant
Life Form:
Tree
Life Habit:
Tree
Source History
Collected
Russian Federation
Locality:
near Pyatigorsk
Coordinates:
44.0500, 43.0333
(Map it)
Elevation:
1000m.
Georeference protocol:
Gazetteer
Habitat:
Wild Habitat
Developed
Oregon, United States
Developer(s):
Oregon State University
Donated
21 February 1981.
Oregon, United States
Comment:
Received from the collection at Medford, Oregon to NCGR- Corvallis
Donor(s):
Lombard, Porter, Oregon State University
Accession Names and Identifiers
Mag 2
Type: Unverified name
SPECIES GROUP 1
Type: Site identifier
Group: CROPTYPE
CPYR 702
Type: Other or unclassified name
Group: LOCAL
Corvallis local number
Narrative
Seed collected in Russia by John R. Magness on July 31, 1958 in the foothills of the Caucasus Mountins a few miles from Pyatigorsk, which is about midway between the Black Sea and the Caspian Sea. In a letter to M. Westwood written on 27 December, 1962 Magness wrote 'Pear trees in the area were quite abundant, some very large with trunks 2 feet in diameter and 35 to 40 feet tall. Fruit was 3/4 to 1 inch in diameter, very gritty and hard. It is probable that these trees are the native species that have contributed to our P. communis varieties. I do not have the exact records of elevation, but it was probably under 1000 meters.'
Pyrus communis
L. subspp.
caucasica
(Fed.) Browicz
Genus:
Pyrus
Section:
Pyrus
Family:
Rosaceae
Subfamily:
Amygdaloideae
Tribe:
Maleae
Subtribe:
Malinae
Nomen number:
313573
Place of publication:
P. Davis, Flora of Turkey 4:163. 1972
Verified:
07/08/2011
by ARS Systematic Botanists.
Other conspecific taxa
Pyrus communis
L.
(1038 active accession[s])
Pyrus communis
L. subsp.
communis
(39 active accession[s])
Pyrus communis
L. subsp.
pyraster
(L.) Ehrh.
(113 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Pyrus caucasica
Fed.
Common names
Name
References
Annotations
Other Links
Actions
Pathogens
Bioassay
Pyronia veitchii. NEGATIVE
Inventory:
CPYR 702 .001 PL
P. communis 'Nouveau Poiteau'. NEGATIVE
Inventory:
CPYR 702 .001 PL
P. communis selection B-13. NEGATIVE
Inventory:
CPYR 702 .001 PL
Vouchers
Citations
Pedigree
Description:
Seedling selection from seedlot collected in Russia
Material Transfer Agreement
Observations
Phenotype Data
Category
Descriptor
Description
Value
Sample Size
Study
Inventory
Availability
DISEASE
FRUIT_SCAB
RATING OF DAMAGE CAUSED BY FRUIT SCAB
1 - NO DAMAGE
PYRUS.CORVALLIS.1987
Not Available
DISEASE
FRUIT_SCAB
RATING OF DAMAGE CAUSED BY FRUIT SCAB
1 - NO DAMAGE
PYRUS.CORVALLIS.2005.FRUITSCAB
CPYR 702 .001 PL
Not Available
DISEASE
LEAF_SCAB
RATING OF DAMAGE CAUSED BY LEAF SCAB
1 - NO DAMAGE
PYRUS.CORVALLIS.1987
Not Available
DISEASE
PSEUDOMONAS
RATING OF DAMAGE CAUSED BY PSEUDOMONAS
9 - SEVERE DAMAGE
PYRUS.CORVALLIS.1988
Not Available
DISEASE
RUST
RATING OF DAMAGE CAUSED BY RUST
1 - NO DAMAGE
PYRUS.CORVALLIS.1987
Not Available
GROWTH
TREE SYMMETRY
SYMMETRY OF TREE GROWTH
2 - INTERMEDIATE
PYRUS.WIEGREFE.1992
Not Available
INSECT
BLISTER_MITES
RATING OF DAMAGE CAUSED BY BLISTER MITES
1 - NO DAMAGE
PYRUS.CORVALLIS.1987
Not Available
MORPHOLOGY
LENTICELS
NUMBER OF LENTICELS
5 - (1 = FEW, 9 = MANY)
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
BLOOM_DENSITY
BLOOM DENSITY
1 - LOW
PYRUS.CORVALLIS.1987
Not Available
MORPHOLOGY
BLOOM_DENSITY
BLOOM DENSITY
3 - (1 = LOW, 9 = HIGH)
PYRUS.CORVALLIS.1988
Not Available
MORPHOLOGY
BLOOM_DENSITY
BLOOM DENSITY
5 - (1 = LOW, 9 = HIGH)
PYRUS.CORVALLIS.1987
Not Available
MORPHOLOGY
TREE SHAPE
OVERALL SHAPE OF TREE SILHOUETTE
3 - OVAL ROUND
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
CENTRAL LEADER
DOMINANCE OR PERSISTENCE OF THE CENTRAL LEADER
3 - STRONG
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
BRANCH ANGLE 1
LOWER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES
0
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
BRANCH ANGLE 2
UPPER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES
0
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
BRANCH DENSITY
DENSITY OF BRANCHING
2 - INTERMEDIATE
PYRUS.WIEGREFE.1992
Not Available
MORPHOLOGY
BRANCH STIFFNESS
PHYSICAL (N.N. VISUAL) STIFFNESS OF BRANCHES
2 - INTERMEDIATE
PYRUS.WIEGREFE.1992
Not Available
PHENOLOGY
FIRST_BLOOM
JULIAN DATE OF FIRST BLOOM
84
PYRUS.CORVALLIS.1990
Not Available
PHENOLOGY
FIRST_BLOOM
JULIAN DATE OF FIRST BLOOM
85
PYRUS.CORVALLIS.1988
Not Available
PHENOLOGY
FIRST_BLOOM
JULIAN DATE OF FIRST BLOOM
97
PYRUS.CORVALLIS.1989
Not Available
PHENOLOGY
FULL_BLOOM
JULIAN DATE OF FULL BLOOM
101
PYRUS.CORVALLIS.1989
Not Available
PHENOLOGY
FULL_BLOOM
JULIAN DATE OF FULL BLOOM
88
PYRUS.CORVALLIS.1990
Not Available
PHENOLOGY
FULL_BLOOM
JULIAN DATE OF FULL BLOOM
89
PYRUS.CORVALLIS.1987
Not Available
PHENOLOGY
FULL_BLOOM
JULIAN DATE OF FULL BLOOM
92
PYRUS.CORVALLIS.1988
Not Available
PHENOLOGY
FULL_BLOOM
JULIAN DATE OF FULL BLOOM
93
PYRUS.CORVALLIS.1987
Not Available
PHENOLOGY
LAST_BLOOM
JULIAN DATE OF LAST BLOOM
101
PYRUS.CORVALLIS.1988
Not Available
PHENOLOGY
LAST_BLOOM
JULIAN DATE OF LAST BLOOM
105
PYRUS.CORVALLIS.1987
Not Available
PHENOLOGY
LAST_BLOOM
JULIAN DATE OF LAST BLOOM
108
PYRUS.CORVALLIS.1989
Not Available
PHENOLOGY
LAST_BLOOM
JULIAN DATE OF LAST BLOOM
94
PYRUS.CORVALLIS.1990
Not Available
PHENOLOGY
FULL_RIPE
JULIAN DATE OF FULL RIPE FRUIT
290
PYRUS.CORVALLIS.1990
Not Available