Details for: PI 541289, Pyrus communis L. subsp. caucasica (Fed.) Browicz, Mag 4

Summary Data

Taxonomy:

Pyrus communis L. subsp. caucasica (Fed.) Browicz

Top Name:

Mag 4

Origin:

Collected – Russian Federation

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Breeding 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 4

Origin:

Collected – Russian Federation

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Breeding 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 collection at Medford, Oregon to NCGR- Corvallis
Donor(s):

Lombard, Porter, Oregon State University

Accession Names and Identifiers

Mag 4

Type: Unverified name

SPECIES GROUP 1

Type: Site identifier

Group: CROPTYPE

CPYR 682

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

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	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 682 .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	7 - (1 = NO DAMAGE, 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	3 - SYMMETRIC	PYRUS.WIEGREFE.1992		Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	5 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1987		Not Available
MORPHOLOGY	PEDICEL_ATTACHMENT	PEDICEL ATTACHMENT	U - SUNKEN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CAVITY	CAVITY	AS - ACUTE SHALLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX	CALYX	P - PERSISTANT	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX_BASIN	CALYX BASIN	N - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GROUND_COLOR	GROUND COLOR	Y - YELLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	BL - BLUSH	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVERCOLOR_AMT	PERCENT OF FRUIT SURFACE WITH OVERCOLOR	90	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET	AMOUNT OF RUSSETING	3 - (1 = NONE, 9 = COMPLETELY RUSSETED)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	C - CALYX END	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	P - PEDICEL END	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICELS	NUMBER OF LENTICELS	5 - (1 = FEW, 9 = MANY)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICEL_SIZE	SIZE OF LENTICELS	1 - SMALL	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	DOTS	DOTS	O - OBSCURE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_COLOR	FLESH COLOR	Y - YELLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_TEXTURE	FLESH TEXTURE	5 - (1 = FINE, 9 = COARSE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FRUITCORE	CORE	M - MEDIAN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CARPEL_NUMBER	NUMBER OF CARPELS	5	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT	NUMBER OF STONE CELLS	4 - (1 = NO STONE CELLS, 9 = MANY STONE CELLS)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT_SIZE	SIZE AND LOCATION OF STONE CELLS	S - SMALL	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CORE_BREAKDOWN	DEGREE OF CORE BREAKDOWN, DETERMINED ON TREE RIPENED FRUIT	1 - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OXIDATION	OXIDATION OF CUT MEASURED AFTER 5 MINUTES	2 - (1 = NONE, 9 = SEVERE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	A - ACID	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	T - ASTRINGENT	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	QUALITY	QUALITY OF FRUIT FLESH A COMBINATION OF FLAVOR, TEXTURE AND AROMA	2 - (1 = POOR, 9 = EXCELLENT)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	2 - (1 = LOW, 9 = HIGH)	PYRUS.CORVALLIS.1988		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	BLOOM_DENSITY	BLOOM DENSITY	6 - (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	1 - OPEN	PYRUS.WIEGREFE.1992		Not Available
MORPHOLOGY	BRANCH STIFFNESS	PHYSICAL (N.N. VISUAL) STIFFNESS OF BRANCHES	2 - INTERMEDIATE	PYRUS.WIEGREFE.1992		Not Available
MORPHOLOGY	BARK TEXTURE	TEXTURE OF THE BARK	2 - SMOOTH	PYRUS.WIEGREFE.1992		Not Available
MORPHOLOGY	THORN ADULT	PRESENCE OF THORNS AS ADULT	1 - NONE	PYRUS.WIEGREFE.1992		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	78	PYRUS.CORVALLIS.1986		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	102	PYRUS.CORVALLIS.1989		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	92	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	100	PYRUS.CORVALLIS.1990		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	107	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	98	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FULL_RIPE	JULIAN DATE OF FULL RIPE FRUIT	228	PYRUS.CORVALLIS.1990		Not Available