Details for: PI 541298, Pyrus communis L. subsp. pyraster (L.) Ehrh., P-87


Summary Data
Taxonomy:
Pyrus communis L. subsp. pyraster (L.) Ehrh.
Top Name:
P-87
Origin:
Developed – Oregon, United States
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.
Request are accepted Sept. 1st - Nov. 30th; Ships Jan.- Mar.

  
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Core Passport Data
Taxonomy:
Pyrus communis L. subsp. pyraster (L.) Ehrh.
Top Name:
P-87
Origin:
Developed – Oregon, United States
Received by NPGS:
21 Feb 1981
Improvement Status:
Breeding material
Form Received:
Plant
Life Form:
Tree
Life Habit:
Tree
Source History
Developed
1926.
Oregon, United States
Comment: Selection introduced in 1926
Developer(s):
Donated
21 February 1981.
Oregon, United States
Comment: Received from collection at Medford, OR to NCGR-Corvallis
Donor(s):
Accession Names and Identifiers
P-87
Type: Unverified name

Rootstock Pear
Type: Local name

P-87 blight resistant rootstock
Type: Developer identifier
Reimer, Frederic (Frank) C. Oregon State University

SPECIES GROUP 1
Type: Site identifier
Group: CROPTYPE

CPYR 724
Type: Other or unclassified name
Group: LOCAL
Corvallis local number

Narrative
Fire blight resistant rootstock. The Southern Oregon Experiment Station made a concerted attempt to find fire blight resistant root and framework stocks from 1923 and 1931. Over 10,000 French P. communis seedlings were grown and repeatedly inoculated with the blight organism, and after 5-6 years only ten trees survived. These seedlings were capable of transmitting blight resistance to a high percentage of their progeny, particularly when cross pollinated with other blight resistant pears. The best of the resistant seedlings were W-1, W-2, P-18, P-30, P-61, P-70 and P-87 (F. Reimer. 1950. Oregon Agricultural Experiment Station Bulletin 485). - H. Hartman, 1957
Pyrus communis L. subspp. pyraster (L.) Ehrh.
Genus:
Pyrus
Section:
Pyrus
Family:
Rosaceae
Subfamily:
Amygdaloideae
Tribe:
Maleae
Subtribe:
Malinae
Nomen number:

448613
Place of publication:

Hannover. Mag. 18:223. 1780 (Beitr. Naturk. 1:100. 1787)
Verified:
03/03/2006 by ARS Systematic Botanists.
Other conspecific taxa
Pyrus communis L. (1038 active accession[s])
Pyrus communis L. subsp. caucasica (Fed.) Browicz (77 active accession[s])
Pyrus communis L. subsp. communis (39 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Pyrus communis L. var. pyraster L.

Homotypic Synonym(s)
Pyrus pyraster (L.) Burgsd.

Common names
LanguageNameAlternate namenoteseqCitation
Englishwild pear as Pyrus pyraster1Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: = Pyrus pyraster
Frenchpoirier sauvage as Pyrus pyraster2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: = Pyrus pyraster
GermanWild-Birne as Pyrus pyraster2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: = Pyrus pyraster
GermanWilder-Birnbaum as Pyrus pyraster2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: = Pyrus pyraster
Annotations
  • The Taxonomic Name Of The Accession When It Was Received: 31 Jul 1989, from Pyrus communis L. var. pyraster L. to Pyrus communis L.
  • Taxonomic Re-Identification: 08 Aug 2012, from Pyrus communis L. to Pyrus communis L. subsp. pyraster (L.) Ehrh.
Other Links
Actions
Pathogens
Bioassay
  • P. communis 'Nouveau Poiteau'. NEGATIVE Inventory: CPYR 724 .001 PL
  • Pyronia veitchii. NEGATIVE Inventory: CPYR 724 .001 PL
Vouchers
Citations
Pedigree
Description:
Seedling selection

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
CYTOLOGICPLOIDY LEVELNumber of sets of chromosomes.2x - diploid PYRUS.PLOIDY.2013CPYR 724 .001 PLNot Available
DISEASEFRUIT_SCABRATING OF DAMAGE CAUSED BY FRUIT SCAB1 - NO DAMAGE PYRUS.CORVALLIS.1987 Not Available
DISEASEFRUIT_SCABRATING OF DAMAGE CAUSED BY FRUIT SCAB2 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE) PYRUS.CORVALLIS.2005.FRUITSCABCPYR 724 .001 PLNot Available
DISEASELEAF_SCABRATING OF DAMAGE CAUSED BY LEAF SCAB3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE) PYRUS.CORVALLIS.1987 Not Available
DISEASERUSTRATING OF DAMAGE CAUSED BY RUST1 - NO DAMAGE PYRUS.CORVALLIS.1987 Not Available
GROWTHTREE SYMMETRYSYMMETRY OF TREE GROWTH2 - INTERMEDIATE PYRUS.WIEGREFE.1992 Not Available
INSECTBLISTER_MITESRATING OF DAMAGE CAUSED BY BLISTER MITES3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE) PYRUS.CORVALLIS.1987 Not Available
MORPHOLOGYPEDICEL_ATTACHMENTPEDICEL ATTACHMENTU - SUNKEN PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYCAVITYCAVITYAS - ACUTE SHALLOW PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYCALYXCALYXP - PERSISTANT PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYCALYX_BASINCALYX BASINOS - OBTUSE SHALLOW PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYGROUND_COLORGROUND COLORG - GREEN PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYOVER_COLOROVERCOLORBL - BLUSH PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYOVER_COLOROVERCOLORSP - SPOTTED PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYOVERCOLOR_AMTPERCENT OF FRUIT SURFACE WITH OVERCOLOR45 PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYRUSSETAMOUNT OF RUSSETING3 - (1 = NONE, 9 = COMPLETELY RUSSETED) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYRUSSET_LOCATIONLOCATION OF RUSSETINGC - CALYX END PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYRUSSET_LOCATIONLOCATION OF RUSSETINGP - PEDICEL END PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYLENTICELSNUMBER OF LENTICELS7 - (1 = FEW, 9 = MANY) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYLENTICEL_SIZESIZE OF LENTICELS1 - SMALL PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYDOTSDOTSO - OBSCURE PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYFLESH_COLORFLESH COLORC - CREAM PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYFLESH_TEXTUREFLESH TEXTURE6 - (1 = FINE, 9 = COARSE) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYFRUITCORECOREM - MEDIAN PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYCARPEL_NUMBERNUMBER OF CARPELS5 PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYGRITNUMBER OF STONE CELLS7 - (1 = NO STONE CELLS, 9 = MANY STONE CELLS) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYCORE_BREAKDOWNDEGREE OF CORE BREAKDOWN, DETERMINED ON TREE RIPENED FRUIT1 - NONE PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYOXIDATIONOXIDATION OF CUT MEASURED AFTER 5 MINUTES3 - (1 = NONE, 9 = SEVERE) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYFLAVORFLAVOR OF FRUIT FLESHT - ASTRINGENT PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYQUALITYQUALITY OF FRUIT FLESH A COMBINATION OF FLAVOR, TEXTURE AND AROMA2 - (1 = POOR, 9 = EXCELLENT) PYRUS.CORVALLIS.STD Not Available
MORPHOLOGYTREE SHAPEOVERALL SHAPE OF TREE SILHOUETTE3 - OVAL ROUND PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYCENTRAL LEADERDOMINANCE OR PERSISTENCE OF THE CENTRAL LEADER2 - MODERATE PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYBRANCH ANGLE 1LOWER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES0 PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYBRANCH ANGLE 2UPPER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES0 PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYBRANCH DENSITYDENSITY OF BRANCHING1 - OPEN PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYBRANCH STIFFNESSPHYSICAL (N.N. VISUAL) STIFFNESS OF BRANCHES2 - INTERMEDIATE PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYBARK TEXTURETEXTURE OF THE BARK4 - FURROWED PYRUS.WIEGREFE.1992 Not Available
MORPHOLOGYTHORN ADULTPRESENCE OF THORNS AS ADULT1 - NONE PYRUS.WIEGREFE.1992 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM29 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM91 PYRUS.CORVALLIS.1990 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM92 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM97 PYRUS.CORVALLIS.1989 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM102 PYRUS.CORVALLIS.1989 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM103 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM94 PYRUS.CORVALLIS.1990 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM100 PYRUS.CORVALLIS.1990 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM109 PYRUS.CORVALLIS.1989 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM110 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFULL_RIPEJULIAN DATE OF FULL RIPE FRUIT276 PYRUS.CORVALLIS.1990 Not Available