NCGR-Corvallis Pyrus Catalog
Mildew (Podosphaera) Resistant Genotypes
Note: Scions cannot be certified free of Erwinia amylovora
Follow links to the Germplasm Resources Information Network (GRIN) for additional accession information.
Catalog last updated: 10 March 2016
Traits listed are intended for preliminary subgrouping of accessions. Traits are from germplasm release notices, published reports, or observations made at NCGR-Corvallis.
- Arganche = PI 264694 (23.002) - Pyrus communis L.
- Virus Lab Assays - Negative: ASGV-1989 PBCVd-2000
- Virus Biological Assays - Negative: MM-2003 NP-1987 PV-1987 VC-1989
- Traits: COMPACT HABIT, EARLY RIPE, MILDEW RESISTANT, DIPLOID (flow cytometry)
- B-12 = PI 437067 (901.001) - Pyrus communis L.
- Pedigree: Selection
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: LA62-1983 M.micromalus-2003 N.Poiteau-1987 P.Crassane-1985 Pyronia-1985
- Traits: ROOTSTOCK, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Ba Li Xiang [Ba Li Hsiang] = PI 541985 (27.002) - Pyrus ussuriensis Maxim. - VIRUS INFECTED
- Pedigree: old pear local selection from Liaoning and Hebei Provinces
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Positive: MM-2003, Negative: NP-1988 PV-1988
- Traits: VERY LATE RIPE, FIRE BLIGHT RESISTANT, MILDEW RESISTANT, ROOTSTOCK, SCAB RESISTANT, DIPLOID (flow cytometry), HEIRLOOM
- Bradford (P. calleryana) = PI 617646 (2577.001) - Pyrus calleryana Decne.
- Pedigree: Seedling selection from seedlot PI 47261
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-1996 NP-1996 PV-1996
- Traits: ORNAMENTAL, MILDEW RESISTANT, LOW CHILL, DIPLOID (flow cytometry)
- Flemish Beauty = PI 541189 (225.003) - Pyrus communis L.
- Pedigree: Chance seedling
- Virus Lab Assays - Negative: TOMRSV-1988, Uncertain: PBCVd-2000
- Virus Biological Assays - Negative: MM-2003 NP-1989
- Traits: FIRE BLIGHT SUSCEPTIBLE, COLD HARDY, MILDEW RESISTANT, QUINCE COMPATIBLE, DIPLOID (flow cytometry), HEIRLOOM
- Hang Pa Li = PI 315064 (268.001) - Pyrus ussuriensis Maxim.
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: Bosc-1989 M.micromalus-1998 N.Poiteau-1988 P.Crassane-1984 Pyronia-1985
- Traits: MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Hansen Siberian Pear = PI 542004 (1095.001) - Pyrus ussuriensis Maxim.
- Pedigree: Probably a seedling selection
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: N.Poiteau-1989 Pyronia-1988, Uncertain: Bosc-1989 M.micromalus-2003
- Traits: COLD HARDY, MILDEW RESISTANT, LOW CHILL, EARLY BLOOM, DIPLOID (flow cytometry), FIRE BLIGHT RESISTANT
- Harbin (P. ussuriensis) = PI 542019 (1318.001) - Pyrus ussuriensis Maxim.
- Pedigree: Selection of seed-propagated variety from China
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2003 N.Poiteau-1988 P.Crassane-1984 Pyronia-1987
- Traits: FIRE BLIGHT RESISTANT, COLD HARDY, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Kikusui = PI 228014 (317.003) - Pyrus pyrifolia (Burm. f.) Nakai
- Pedigree: Taihaku x Nijisseiki
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-1998 NP-1998 PV-1998
- Traits: FIRE BLIGHT SUSCEPTIBLE, BLACK SPOT RESISTANT, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Krylov = PI 127715 (1106.001) - Pyrus hybrid
- Pedigree: Saponsky x Lincoln
- Virus Biological Assays - Negative: M.micromalus-1998 N.Poiteau-1985 Pyronia-1989
- Traits: FIRE BLIGHT RESISTANT, COLD HARDY, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Laioyang 50 = PI 144035 (1105.002) - Pyrus sp.
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-2002 NP-1989 PV-1989
- Traits: MILDEW RESISTANT, LOW CHILL, EARLY BLOOM, DIPLOID (flow cytometry)
- Luscious = PI 541322 (367.001) - Pyrus communis L.
- Pedigree: SD-E31 x Ewart
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: Bosc-1988 N.Poiteau-1987 P.Crassane-1984, Uncertain: M.micromalus-2003
- Traits: COLD HARDY (fruited in Anchorage), MILDEW RESISTANT, SCAB RESISTANT, LOW CHILL , FIRE BLIGHT RESISTANT, DIPLOID (flow cy
- Maxine = PI 541231 (547.001) - Pyrus communis L.
- Pedigree: Chance seedling
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: Bosc-1989 M.micromalus-1998 N.Poiteau-1991 Pyronia-1991 V.Crab-1991
- Traits: FIRE BLIGHT RESISTANT, MILDEW RESISTANT, QUINCE COMPATIBLE, DIPLOID (flow cytometry), HEIRLOOM
- Meigetsu = PI 97348 (1119.001) - Pyrus pyrifolia (Burm. f.) Nakai
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: Bosc-1989 M.micromalus-2002 N.Poiteau-1985 Pyronia-1988
- Traits: FIRE BLIGHT SUSCEPTIBLE, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Monterrey = PI 541903 (1125.004) - Pyrus hybrid
- Pedigree: Pineapple (?) x P. communis
- Virus Biological Assays - Negative: MM-2002 NP-2003 PV-2002
- Traits: FIRE BLIGHT RESISTANT, LOW CHILL, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Mustafabey = PI 324134 (406.001) - Pyrus communis L.
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-1997 N.Poiteau-1988 P.Crassane-1984 Pyronia-1984 V.Crab-1989
- Traits: COMPACT HABIT, EARLY RIPE, MILDEW RESISTANT, DIPLOID (flow cytometry)
- NY 10353 = PI 541809 (1660.001) - Pyrus hybrid
- Pedigree: Russet Flemish Beauty x NY 10257 (Bartlett x Ill. #65)
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2003 N.Poiteau-1987 Pyronia-1987 V.Crab-1989
- Traits: FIRE BLIGHT RESISTANT, PSYLLA RESISTANT, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Nan Guo Li [Nangon Li] = PI 541965 (2254.002) - Pyrus ussuriensis Maxim.
- Pedigree: seedling selection from Liaoning
- Virus Biological Assays - Negative: NP-1991 PV-1991
- Traits: MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry), PERRY POTENTIAL, HEIRLOOM
- Naspati = PI 250449 (411.001) - Pyrus pashia Buch.-Ham. ex D. Don
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1985 P.Crassane-1984 Pyronia-1991 V.Crab-1988
- Traits: VERY LATE RIPE, LOW CHILL, NOT COLD HARDY, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- P. betulifolia = PI 540942 (649.001)
- Pedigree: Probably a seedling selection from Chinese seedlot
- Virus Lab Assays - Negative: PBCVd-2000 PNRSV-1990
- Virus Biological Assays - Negative: B13-1983 M.micromalus-2002 N.Poiteau-1985 Pyronia-1988
- Traits: ORNAMENTAL POTENTIAL, MILDEW RESISTANT, NICE GLOSSY LEAVES, DIPLOID (flow cytometry)
- P. calleryana = PI 541021 (663.001)
- Pedigree: Probably a seedling selection from an Asian seedlot
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: N.Poiteau-1985 Pyronia-1987
- Traits: FIRE BLIGHT RESISTANT, MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. calleryana v. graciliflora = PI 313928 (678.001)
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2000 N.Poiteau-1985
- Traits: MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. cordata - Turkey = PI 541591 (1589.001)
- Pedigree: Seedling selection B from seedlot collected in Turkey
- Virus Biological Assays - Negative: M.micromalus-2000 N.Poiteau-1987 Pyronia-1987
- Traits: MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. cossonii - Russia = PI 541592 (828.001)
- Pedigree: Seedling selection from seedlot collected in the USSR
- Virus Lab Assays - Negative: PBCVd-2000 PNRSV-1990
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1985, Uncertain: B13-1983
- Traits: LATE BLOOM, MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. dimorphophylla - Inunashi - Japan = PI 318871 (295.001)
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: Bosc-1989 M.micromalus-1996 N.Poiteau-2003 P.Crassane-1984 Pyronia-1984 V.Crab-1989
- Traits: MILDEW RESISTANT, LOW CHILL, DIPLOID (flow cytometry)
- P. dimorphophylla 407 = PI 541601 (1214.001)
- Pedigree: Seedling selection from seedlot collected in Japan
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2003 N.Poiteau-2003 Pyronia-1988 V.Crab-1992
- Traits: MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. hondoensis - Aonashi = PI 318874 (925.001)
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: N.Poiteau-1985 Pyronia-1985, Uncertain: M.micromalus-2003
- Traits: MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. pyrifolia No. 2 = PI 541900 (888.001)
- Pedigree: Seedling selection
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1985
- Traits: MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- P. salicifolia hybrid - blister mite resistant = PI 617559 (2382.001)
- Pedigree: Seedling selection from seedlot from USSR
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: NP-1991 PV-1991, Uncertain: MM-2003
- Traits: MILDEW RESISTANT, BLISTER MITE RESISTANT, DIPLOID (flow cytometry)
- P. syriaca No. 1 - Israel = PI 541975 (908.001)
- Pedigree: Seedling selection from seed collected wild in Israel
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1985 Pyronia-1987
- Traits: MILDEW RESISTANT, DIPLOID (flow cytometry)
- P. ussuriensis - Manchuria = PI 143978 (379.001)
- Pedigree: Possibly a seedling selection from a Chinese seedlot
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: LA62-1983 M.micromalus-2000 N.Poiteau-1985 Pyronia-1987
- Traits: EARLY BLOOM, MILDEW RESISTANT, LOW CHILL, DIPLOID (flow cytometry)
- P. ussuriensis - Manchuria = PI 143978 (1139.001)
- Pedigree: Possibly a seedling selection from a Chinese seedlot
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1987 Pyronia-1988
- Traits: EARLY BLOOM, MILDEW RESISTANT, LOW CHILL, DIPLOID (flow cytometry)
- Pai Li (Beijing White Pear) = PI 541998 (439.001) - Pyrus ussuriensis Maxim.
- Pedigree: old selection from Beijing Region
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2002 N.Poiteau-1988 P.Crassane-1984 Pyronia-1984 V.Crab-1988
- Traits: LATE RIPE, FIRE BLIGHT RESISTANT, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Ping Guo Li [Pingo Li] = PI 267863 (455.002) - Pyrus ussuriensis Maxim.
- Pedigree: old selection from Jiling Province
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-2002 NP-1991 PV-1991
- Traits: LATE RIPE, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Seuri Li = PI 541904 (1173.002) - Pyrus pyrifolia (Burm. f.) Nakai
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-2002 NP-1990 PV-1991
- Traits: FIRE BLIGHT RESISTANT, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Tang Li ID? = PI 542024 (1184.002) - Pyrus ussuriensis Maxim.
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: NP-1990 PV-1991, Uncertain: MM-2003
- Traits: FIRE BLIGHT RESISTANT, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Tioma = PI 134606 (573.002) - Pyrus hybrid
- Pedigree: P. ussuriensis x Finland Early Yellow
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-2002 NP-1989 PV-1987
- Traits: COLD HARDY, MILDEW RESISTANT, DIPLOID (flow cytometry)
- Xiangshui Li [Hsiang Sui-Li] = PI 542022 (1617.002) - Pyrus ×bretschneideri Rehder
- Pedigree: old selection from the wild in Northeast China
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: MM-2002 NP-1992 PV-1992
- Traits: FIRE BLIGHT RESISTANT, MILDEW RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry)
- Ya Li = PI 506362 (1678.001) - Pyrus ×bretschneideri Rehder
- Virus Lab Assays - Negative: PBCVd-2000
- Virus Biological Assays - Negative: M.micromalus-2003 N.Poiteau-1987 Pyronia-1987
- Traits: LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL 500 hrs, PSYLLA RESISTANT, EARLY BLOOM, MILDEW RESISTANT, DIPLOID (flow cytometry), SCAB RESISTANT (Australia)