Details for: PI 541780, Pyrus hybr., P-79 x P. betulifolia

Summary Data

Taxonomy:

Pyrus hybr.

Top Name:

P-79 x P. betulifolia

Origin:

Developed – Oregon, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

08 Apr 1983

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.

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

Core Passport Data

Taxonomy:

Pyrus hybr.

Top Name:

P-79 x P. betulifolia

Origin:

Developed – Oregon, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

08 Apr 1983

Improvement Status:

Breeding material

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

Oregon, United States

Developer(s):

Westwood, Melvin N., USDA/ARS/NCGR-Corvallis

Donated

08 April 1983.
Oregon, United States
Comment: Received from the OSU Lewis Brown Farm to NCGR-Corvallis
Donor(s):

Westwood, Melvin N., USDA/ARS/NCGR-Corvallis

Accession Names and Identifiers

P-79 x P. betulifolia

Type: Site identifier

Group: CROPTYPE

CPYR 1348

Type: Other or unclassified name

Group: LOCAL

Corvallis local number

Narrative

Blight-resistant rootstock

Pyrus hybr.

Genus:

Pyrus

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Maleae

Subtribe:

Malinae

Nomen number:

300498

Comment:

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

Verified:

11/02/1990 by ARS Systematic Botanists.

Other conspecific taxa

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

Common names

Annotations

The Taxonomic Name Of The Accession When It Was Received: 31 Jul 1989, from Pyrus spp. to Pyrus hybr.

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid	PYRUS.PLOIDY.2013	CPYR 1348 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	0 - 0 (No Fruit to assess)	PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 1348 .001 PL	Not Available
DISEASE	LEAF_SCAB	RATING OF DAMAGE CAUSED BY LEAF SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		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	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
MORPHOLOGY	BARK TEXTURE	TEXTURE OF THE BARK	4 - FURROWED	PYRUS.WIEGREFE.1992		Not Available
MORPHOLOGY	THORN ADULT	PRESENCE OF THORNS AS ADULT	1 - NONE	PYRUS.WIEGREFE.1992		Not Available
MORPHOLOGY	SUMMER LEAF COLOR	SUMMER LEAF COLOR RECORDED AS HUE, NOT VALUE.	3 - DARK	PYRUS.WIEGREFE.1992		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	105	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	88	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	96	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	109	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	115	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	106	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	112	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	120	PYRUS.CORVALLIS.1989		Not Available