Details for: PI 541296, Pyrus communis L., P-70


Summary Data
Taxonomy:
Pyrus communis L.
Top Name:
P-70
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.

  
Images (3 total. Click on image for more.)

FRUIT

Core Passport Data
Taxonomy:
Pyrus communis L.
Top Name:
P-70
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
1925.
Oregon, United States
Comment: Selection introduced in 1925
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-70
Type: Unverified name

Rootstock Pear
Type: Local name

P-70 blight resistant rootstock
Type: Developer identifier
Reimer, Frederic (Frank) C. Oregon State University

x
Type: Site identifier
Group: CROPTYPE

CPYR 722
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.
Genus:
Pyrus
Section:
Pyrus
Family:
Rosaceae
Subfamily:
Amygdaloideae
Tribe:
Maleae
Subtribe:
Malinae
Nomen number:

30474
Place of publication:

Sp. pl. 1:479, 2:1200. 1753
Comment:
probably of hybrid origin
Verified:
07/07/2011 by ARS Systematic Botanists.
Other conspecific taxa
Pyrus communis L. subsp. caucasica (Fed.) Browicz (77 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
Heterotypic Synonym(s)
Pyrus asiae-mediae (Popov) Maleev
Pyrus balansae Decne.
Pyrus bourgaeana Decne.
Pyrus communis L. subsp. bourgaeana (Decne.) Nyman
Pyrus communis L. var. mariana Willk.
Pyrus domestica Medik.
Pyrus elata Rubtzov
Pyrus medvedevii Rubtzov

Common names
LanguageNameAlternate namenoteseqCitation
Englishpear  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Frenchpoirier  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
GermanBirnbaum  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
GermanBirne  2Reichel, S. 1998. pers. comm. Note: re. German common names
GermanBirnenbaum  2Reichel, S. 1998. pers. comm. Note: re. German common names
Italianpera  2Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Italianpero  2Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Japanese Rōmajiseiyō-nashi  2Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Portuguesepereira  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishpera  2Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Spanishperal  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedishpäron  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinesexi yang li as Pyrus communis var. sativa2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Pyrus communis var. sativa
Transcribed Koreanbyeongbaenamu  2Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:122.
Annotations
Other Links
Actions
Pathogens
Bioassay
  • P. communis selection B-13. POSITIVE Inventory: CPYR 722 .001 PL
  • P. communis 'Passe Crassane'. POSITIVE Inventory: CPYR 722 .001 PL
  • P. communis 'Nouveau Poiteau'. NEGATIVE Inventory: CPYR 722 .002 PL
  • Pyronia veitchii. NEGATIVE Inventory: CPYR 722 .002 PL
Vouchers
Citations
Pedigree
Description:
Seedling selection

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
CYTOLOGICPLOIDY LEVELNumber of sets of chromosomes.2x - diploid PYRUS.PLOIDY.2013CPYR 722 .002 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 722 .002 PLNot Available
DISEASELEAF_SCABRATING OF DAMAGE CAUSED BY LEAF SCAB1 - NO DAMAGE PYRUS.CORVALLIS.1987 Not Available
DISEASERUSTRATING OF DAMAGE CAUSED BY RUST1 - NO DAMAGE PYRUS.CORVALLIS.1987 Not Available
INSECTBLISTER_MITESRATING OF DAMAGE CAUSED BY BLISTER MITES3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE) PYRUS.CORVALLIS.1987 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM88 PYRUS.CORVALLIS.1991 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM94 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFIRST_BLOOMJULIAN DATE OF FIRST BLOOM97 PYRUS.CORVALLIS.1989 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM101 PYRUS.CORVALLIS.1989 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM98 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYFULL_BLOOMJULIAN DATE OF FULL BLOOM98 PYRUS.CORVALLIS.1991 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM104 PYRUS.CORVALLIS.1988 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM108 PYRUS.CORVALLIS.1991 Not Available
PHENOLOGYLAST_BLOOMJULIAN DATE OF LAST BLOOM124 PYRUS.CORVALLIS.1989 Not Available