NCGR-Corvallis Pyrus Catalog

Hybrid (European x Asian) Cultivars

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

NCGR-Corvallis Distribution Policies

Traits listed are intended for preliminary subgrouping of accessions. Traits are from germplasm release notices, published reports, or observations made at NCGR-Corvallis.

• Acres Home = PI 641287 (2807.001) - Pyrus hybrid
  - Traits: LOW CHILL, DIPLOID (flow cytometry 2012)
• Ayers = PI 541722 (1059.005) - Pyrus hybrid
  - Pedigree: Garber x Anjou
  - Virus Biological Assays - Negative: NP-1991 PV-1991
  - Traits: FIRE BLIGHT RESISTANT, SCAB RESISTANT, ATTRACTIVE, SIMILAR TO SECKEL, CURATOR CHOICE, DIPLOID (flow cytometry 2012)
• B II-3-25-27 (Bartlett x P. salicifolia) - Russia = PI 654950 (2768.001) - Pyrus hybrid
• Baldwin = PI 617669 (2614.001) - Pyrus sp. - VIRUS INFECTED
  - Pedigree: Origin unknown
  - Virus Biological Assays - Positive: NP-2003, Negative: PV-2000
  - Traits: LOW CHILL 480 hrs, DIPLOID (flow cytometry 2012)
• Birleshik 84-2 - Turkmenistan = PI 665805 (2774.001) - Pyrus sp.
  - Virus Biological Assays - Negative: NP-2004
  - Traits: DIPLOID (flow cytometry 2012)
• Biscamp = PI 617602 (2526.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1997 PV-1997
  - Traits: LOW CHILL 250 hrs, SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Bosarge = PI 641289 (2809.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: MM-2003
  - Traits: LOW CHILL, SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Broussard = PI 617659 (2604.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: NP-2002 PV-2001
  - Traits: LATE RIPE, LOW CHILL, DIPLOID (flow cytometry 2012)
• Burford Pear = PI 641291 (2811.001) - Pyrus communis L.
  - Pedigree: Possibly an old French cultivar
  - Virus Biological Assays - Negative: NP-2003
  - Traits: LATE RIPE, DIPLOID (flow cytometry 2012)
• Campas No.1 = PI 541705 (124.002) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid
  - Virus Lab Assays - Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: NP-1990 PV-1989 VC-1989
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL, DIPLOID (flow cytometry 2012)
• Campas No.2 = PI 541706 (125.003) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid
  - Virus Biological Assays - Negative: NP-1990 PV-1987 VC-1989
  - Traits: VERY LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL
• Canner (Waite?) = PI 541159 (128.002) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid, possibly a seedling of cv. Kieffer
  - Virus Biological Assays - Negative: NP-1993
  - Traits: FIRE BLIGHT RESISTANT, SCAB RESISTANT, MALE STERILE? HEIRLOOM, DIPLOID (flow cytometry 2012)
• Cayuga = PI 541160 (129.002) - Pyrus hybrid
  - Pedigree: Seedling of cultivar Seckel
  - Virus Lab Assays - Negative: ASGV-1989
  - Virus Biological Assays - Negative: NP-1990 PV-1989 VC-1989
  - Traits: FIRE BLIGHT RESISTANT, DIPLOID (flow cytometry 2012)
• Charles Harris = PI 617599 (2523.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1999 PV-1997
  - Traits: LATE RIPE, LOW CHILL 450 hrs, SCAB RESISTANT, LARGE FRUIT, DIPLOID (flow cytometry 2012)
• Chieh Li x Japanese Golden Russet (Decline Resist.) = PI 541760 (1226.001) - Pyrus hybrid
  - Pedigree: Chieh Li x Jap. Gold Russet
  - Virus Biological Assays - Negative: N.Poiteau-1985 Pyronia-1987
  - Traits: ROOTSTOCK, PEAR DECLINE RESISTANT, DIPLOID (flow cytometry 2014)
• Cincincis = PI 541707 (138.001) - Pyrus hybrid
  - Pedigree: P. pyrifolia x P. communis
  - Virus Lab Assays - Negative: TOMRSV-1986, Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: LA62-1983 N.Poiteau-1987 P.Crassane-1984 Pyronia-1985 V.Crab-1988
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, HEIRLOOM, DIPLOID (flow cytometry 2012)
• Dabney (3x) = PI 541306 (164.001) - Pyrus hybrid
  - Pedigree: Seckel x Garber
  - Virus Lab Assays - Negative: TOMRSV-1986, Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: M.micromalus-1996 N.Poiteau-1988 P.Crassane-1984
  - Traits: FIRE BLIGHT RESISTANT, QUINCE COMPATIBLE , PHS Favorite 2005, POLYPLOID (3x flow cytometry 2012)
• David = PI 657927 (2920.001) - Pyrus hybrid
  - Pedigree: Pyrus ussuriensis x Bartlett
  - Virus Biological Assays - Negative: NP-2009, Uncertain: PV-2009
  - Traits: COLD HARDY, DIPLOID (flow cytometry 2012)
• Dessertnaia = PI 277420 (170.001) - Pyrus hybrid
  - Virus Lab Assays - Negative: TOMRSV-1986, Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: N.Poiteau-1993 P.Crassane-1984 Pyronia-1993, Uncertain: V.Crab-1989
  - Traits: DIPLOID (flow cytometry 2012)
• Dixie = PI 541708 (175.002) - Pyrus hybrid
  - Pedigree: Le Conte x P. pyrifolia
  - Virus Biological Assays - Negative: PV-2000
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL, DIPLOID (flow cytometry 2012)
• Domestic pear hybrid from Orel, Russia = PI 654956 (2778.001) - Pyrus hybrid
  - Traits: DIPLOID (flow cytometry 2012)
• Douglas = PI 541723 (1083.001) - Pyrus hybrid
  - Pedigree: Kieffer x Duchess d'Angouleme (probably)
  - Virus Biological Assays - Negative: Bosc-1989 N.Poiteau-1985 Pyronia-1988
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, DIPLOID (flow cytometry 2012)
• Emancipation = PI 617668 (2613.001) - Pyrus hybrid - VIRUS INFECTED
  - Pedigree: Probably a chance seedling
  - Virus Biological Assays - Positive: NP-2002 PV-2002, Uncertain: RING-1999 VY-1999
  - Traits: DIPLOID (flow cytometry 2012)
• Estella = PI 541709 (216.002) - Pyrus hybrid
  - Pedigree: Kieffer x P. communis
  - Virus Biological Assays - Negative: NP-1990 PV-1990
  - Traits: FIRE BLIGHT RESISTANT, ROOTSTOCK
• Fan-Stil = PI 617658 (2603.001) - Pyrus hybrid - VIRUS INFECTED
  - Pedigree: Unknown - possibly selection from Mexico
  - Virus Biological Assays - Positive: VY-1999, Negative: PV-2002
  - Traits: LOW CHILL
• Florida 58-45 = PI 617666 (2611.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: PV-2000
  - Traits: LOW CHILL
• Garber = PI 541711 (239.002) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid
  - Virus Biological Assays - Negative: NP-1990 PV-1990
  - Traits: VERY LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL, HEIRLOOM
• Garber Seedling = PI 112064 (2368.001) - Pyrus hybrid
  - Pedigree: Seedling selection from cultivar Garber
  - Virus Biological Assays - Negative: NP-1992 PV-1991
• Good Christian = PI 541712 (250.003) - Pyrus hybrid
  - Pedigree: Chance seedling
  - Virus Biological Assays - Negative: NP-1990 PV-1991 VC-1989
  - Traits: LATE RIPE, LOW CHILL, FIRE BLIGHT RESISTANT
• Gourmet = PI 541804 (1661.001) - Pyrus hybrid
  - Pedigree: South Dakota F15 x Ewart
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: N.Poiteau-1987 Pyronia-1987
  - Traits: DIPLOID (flow cytometry), COLD HARDY
• Greisa No.1 (=Douglas?) = PI 541713 (255.001) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid
  - Virus Lab Assays - Negative: TOMRSV-1988
  - Virus Biological Assays - Negative: JA-1983 N.Poiteau-1985
  - Traits: FIRE BLIGHT RESISTANT
• Higdon = PI 617657 (2602.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: PV-2002
  - Traits: LOW CHILL, FIRE BLIGHT RESISTANT
• Ho Mon = Q 27965 (2723.001) - Pyrus ×sinkiangensis T. T. Yu
  - Pedigree: Landrace fragrant pear
  - Virus Biological Assays - Negative: NP-2003 PV-2002
  - Traits: FRAGRANT PEAR
• Honey Dew = PI 617660 (2605.004) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-2003
• Hood = PI 541311 (281.001) - Pyrus hybrid
  - Pedigree: Chance seedling
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: M.micromalus-1997 N.Poiteau-1989 P.Crassane-1984 Pyronia-1985 V.Crab-1991
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL 260 hrs, DIPLOID (flow cytometry), apparently SELF-FERTILE, SCAB RESISTANT (Australia)
• Ilinka = PI 483372 (1526.002) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1989 PV-1987
  - Traits: COLD HARDY, HEIRLOOM
• India NIC 20814 = PI 665807 (2748.001) - Pyrus pashia hybrid
  - Virus Biological Assays - Negative: PV-2003
  - Traits: NOT COLD HARDY
• Kieffer = PI 541714 (1166.001) - Pyrus hybrid
  - Pedigree: P. pyrifolia x Bartlett
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: LA62-1983 M.micromalus-2003 N.Poiteau-1987 P.Crassane-1984 Pyronia-1985
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL 680 hrs, QUINCE COMPATIBLE, DIPLOID (flow cytometry), HEIRLOOM
• 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)
• La Providence = PI 278728 (338.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: N.Poiteau-1987 P.Crassane-1984 Pyronia-1984 V.Crab-1988
  - Traits: LOW CHILL
• Le Conte = PI 637997 (2732.001) - Pyrus hybrid
  - Pedigree: Chinese Sand Pear x P. communis
  - Virus Biological Assays - Negative: MM-2002 NP-2002
  - Traits: FIRE BLIGHT SUSCEPTIBLE, LOW CHILL 680 hrs, HEIRLOOM
• Leona = PI 617600 (2524.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: MM-2001 NP-1997 PV-1997
  - Traits: LATE RIPE, LOW CHILL 450 hrs, SCAB RESISTANT
• Lida = PI 617609 (2535.001) - Pyrus ussuriensis hybrid
  - Virus Biological Assays - Negative: NP-1997 PV-1997
• Mandan 58-4 = PI 541724 (1114.004) - Pyrus hybrid
  - Pedigree: Patten x Parker, hybrid
  - Virus Biological Assays - Negative: NP-1989 PV-1990
  - Traits: COLD HARDY
• Michurin Beurré Zimnaya (Winter) = PI 312503 (2386.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1992 PV-1991
  - Traits: LATE RIPE, HEIRLOOM, COLD HARDY
• Miller Seedling (Flower Mountain Pear) = PI 617550 (2364.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: NP-1993 PV-1993
  - Traits: LOW CHILL, SCAB RESISTANT
• Missouri No. 83 = PI 541720 (395.002) - Pyrus hybrid
  - Virus Biological Assays - Negative: MM-1996 NP-1990 PV-1989, Uncertain: VC-1989
• 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)
• NY 10262 = PI 541807 (1658.001) - Pyrus hybrid
  - Pedigree: Seckel x Ill #65 (P. ussuriensis)
  - Virus Lab Assays - Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: N.Poiteau-1987 Pyronia-1987 V.Crab-1989
  - Traits: FIRE BLIGHT RESISTANT, PSYLLA RESISTANT
• 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)
• NY 10355 = PI 541808 (1659.001) - Pyrus hybrid
  - Pedigree: Bartlett x NY 10255
  - Virus Lab Assays - Uncertain: ASGV-1989
  - Virus Biological Assays - Negative: N.Poiteau-1987 Pyronia-1988 V.Crab-1989
  - Traits: FIRE BLIGHT RESISTANT, PSYLLA RESISTANT
• Nak I - Pakistan = Q 27432 (2759.001) - Pyrus pyrifolia hybrid
• Nart = PI 654951 (2769.001) - Pyrus hybrid
• Nashpati II = PI 654928 (2666.002) - Pyrus hybrid
  - Virus Biological Assays - Uncertain: NP-2003
• Nijisseiki x D'Anjou = PI 617528 (2205.001) - Pyrus hybrid
  - Pedigree: 20th Century x D'Anjou
  - Virus Biological Assays - Negative: NP-1993 PV-1993
  - Traits: LATE RIPE
• Nijisseiki x Old Home = PI 541767 (1233.001) - Pyrus hybrid
  - Pedigree: Nijisseiki x Old Home
  - Virus Biological Assays - Negative: B13-1983 N.Poiteau-1985
  - Traits: ROOTSTOCK
• Nijisseiki x Old Home (Decline susceptible) = PI 541728 (415.001) - Pyrus hybrid
  - Pedigree: Nijisseiki x Old home decline susceptible
  - Virus Biological Assays - Negative: N.Poiteau-1987 P.Crassane-1984 Pyronia-1984 V.Crab-1989
  - Traits: ROOTSTOCK, SCAB RESISTANT, PEAR DECLINE SUSCEPTIBLE
• OH 50 fire blight resistant rootstock = PI 541238 (427.001) - Pyrus communis hybrid
  - Pedigree: Old Home seedling selection
  - Virus Biological Assays - Negative: Bosc-1989 N.Poiteau-1988 P.Crassane-1984 Pyronia-1984, Uncertain: V.Crab-1989
  - Traits: FIRE BLIGHT RESISTANT, ROOTSTOCK
• OPR-005 OHxF C-44 = PI 617519 (1420.001) - Pyrus hybrid
  - Pedigree: Bartlett x (Old Home x Farmingdale)
  - Virus Biological Assays - Negative: N.Poiteau-1990 Pyronia-1987
  - Traits: ROOTSTOCK
• OPR-141 = PI 541789 (1373.001) - Pyrus hybrid
  - Pedigree: P. ussuriensis x P. pyrifolia hybrid seedling selection
  - Virus Biological Assays - Negative: B13-1983 N.Poiteau-1990 Pyronia-1987
  - Traits: ROOTSTOCK
• Oakhill = PI 617662 (2607.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: VY-1999, Negative: PV-2000
• Olia = PI 143979 (1130.001) - Pyrus hybrid - VIRUS INFECTED
  - Pedigree: P. ussuriensis x Finland Early Yellow
  - Virus Biological Assays - Positive: P.Crassane-1984 Vein Yellows-1985, Negative: Bosc-1989
  - Traits: COLD HARDY, FIRE BLIGHT RESISTANT
• Ooharabeni = PI 617674 (2619.001) - Pyrus hybrid
  - Pedigree: Originally thought to be hybrid of Okusankichi and Max Red Bartlett.
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: NP-2003
  - Traits: ORNAMENTAL, SCAB RESISTANT, COMPACT HABIT
• Orel No. 15 = PI 541239 (433.002) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1989 PV-1989
  - Traits: FIRE BLIGHT RESISTANT, EARLY RIPE, COLD HARDY, Blooms with Bosc, HEIRLOOM
• Orient = PI 541954 (434.007) - Pyrus hybrid
  - Pedigree: P. communis x Chinese species
  - Virus Biological Assays - Negative: MM-1997 NP-1990 PV-1989
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL 680 hrs, POLYPLOID (3x flow cytometry 2013)
• Peter = PI 617631 (2561.001) - Pyrus ussuriensis hybrid
  - Pedigree: Pyrus ussuriensis x Aspa
  - Virus Biological Assays - Negative: NP-1996 PV-1999
  - Traits: COLD HARDY
• Pineapple = PI 617561 (2384.002) - Pyrus hybrid
  - Pedigree: Unknown seedling may have been brought from China in the 1850s. Named Pineapple by Georgia Exp. Station.
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL 360 hrs, DIPLOID (flow cytometry 2014)
• Pitoma Slanopadja = PI 483405 (1554.001) - Pyrus communis x amygdaliformis
  - Pedigree: Pyrus communis/P. amygdaliformis
  - Virus Biological Assays - Negative: Bosc-1989 M.micromalus-1997 N.Poiteau-1985 Pyronia-1985 V.Crab-1992
  - Traits: LATE RIPE, POLYPLOID (3x flow cytometry 2013)
• Pontotoc = PI 541726 (1135.001) - Pyrus hybrid
  - Pedigree: P. communis x P. ussuriensis or P. pyrifolia
  - Virus Biological Assays - Negative: Bosc-1988 N.Poiteau-1985 P.Crassane-1985 Pyronia-1991
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL, DIPLOID (flow cytometry 2012)
• Pope [Bonner] = PI 617670 (2615.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: PV-2002 RING-1999
  - Traits: LATE RIPE, SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Prague No. 1 (3x) = PI 483379 (1533.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: Bosc-1987 M.micromalus-1996 N.Poiteau-1985 Pyronia-1985 V.Crab-1992
  - Traits: POLYPLOID (3x flow cytometry 2008)
• Prague No. 2 = PI 483380 (1534.002) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1988 PV-1991
  - Traits: LATE RIPE, DIPLOID (flow cytometry)
• Quave = PI 617672 (2617.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: RING-1999
  - Traits: DIPLOID (flow cytometry 2012)
• Richard Peters = PI 541715 (486.004) - Pyrus hybrid
  - Pedigree: Kieffer seedling
  - Virus Biological Assays - Negative: NP-1993 PV-1991
  - Traits: FIRE BLIGHT RESISTANT, LOW CHILL, DIPLOID (flow cytometry 2012)
• Romania 3/35 FE-12-139 = PI 654916 (2441.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Lab Assays - Positive: PBCVd-2001
  - Virus Biological Assays - Negative: MM-1998 NP-1992 PV-1991
  - Traits: SCAB RESISTANT
• Saprani II = PI 506376 (1673.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: N.Poiteau-1987 Pyronia-1987
  - Traits: ROOTSTOCK, DIPLOID (flow cytometry 2012)
• Sbkta (P. elaeagrifolia) = PI 502179 (1639.001) - Pyrus hybrid
  - Pedigree: P. communis x P. nivalis hybrid
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: M.micromalus-1998 N.Poiteau-2003 Pyronia-1988 V.Crab-1991
  - Traits: ROOTSTOCK, DIPLOID (flow cytometry)
• Simon = PI 617633 (2563.001) - Pyrus hybrid
  - Pedigree: Pyrus ussuriensis x Aspa
  - Virus Biological Assays - Negative: NP-1996 PV-1996
  - Traits: COLD HARDY, DIPLOID (flow cytometry 2012)
• Sladky = PI 127716 (534.001) - Pyrus hybrid
  - Pedigree: Russian sand pear x Lincoln
  - Virus Biological Assays - Negative: N.Poiteau-1987 P.Crassane-1984 Pyronia-1985 V.Crab-1988, Uncertain: Bosc-1989
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Smith = PI 541716 (535.001) - Pyrus hybrid
  - Pedigree: P. pyrifolia hybrid
  - Virus Biological Assays - Negative: N.Poiteau-1987 P.Crassane-1984 Pyronia-1985 V.Crab-1988
  - Traits: DIPLOID (flow cytometry 2012)
• Sodak = PI 541727 (1144.001) - Pyrus hybrid
  - Pedigree: P. ussuriensis x Margueritte Marillat
  - Virus Biological Assays - Negative: N.Poiteau-1987 P.Crassane-1984 Pyronia-1985, Uncertain: M.micromalus-2001
  - Traits: FIRE BLIGHT RESISTANT, DIPLOID (flow cytometry 2012)
• South Dakota E-31 = PI 541812 (1702.001) - Pyrus hybrid
  - Pedigree: Uncertain, probably a hybrid
  - Virus Lab Assays - Negative: TOMRSV-1988
  - Virus Biological Assays - Negative: M.micromalus-2001 N.Poiteau-1988 Pyronia-1988 V.Crab-1989
  - Traits: DIPLOID (flow cytometry 2012)
• Southern King = PI 665751 (2942.001) - Pyrus hybrid
  - Traits: DIPLOID (flow cytometry 2012)
• Spalding = PI 617548 (2362.001) - Pyrus hybrid
  - Pedigree: Unknown, although one parent is probably cv 'Pineapple'
  - Virus Biological Assays - Negative: MM-2001 NP-1992 PV-1991
  - Traits: LOW CHILL, FIRE BLIGHT RESISTANT, apparently SELF-FERTILE, DIPLOID (flow cytometry 2012)
• Summercrisp = PI 665739 (2328.001) - Pyrus hybrid
  - Pedigree: Unknown, P. communis and ussuriensis suspected in ancestry
  - Virus Biological Assays - Negative: NP-1992 PV-1991
  - Traits: COLD HARDY (fruited in Anchorage), DIPLOID (flow cytometry 2012)
• Tarusa Crimson (=Tamared) = PI 617643 (2574.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: MM-1999 NP-1996 PV-1999
  - Traits: FIRE BLIGHT SUSCEPTIBLE, DIPLOID (flow cytometry 2012)
• Tennessee = PI 617601 (2525.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: NP-1997 PV-1997, Uncertain: VY-1999
  - Traits: LATE RIPE, FIRE BLIGHT RESISTANT, LOW CHILL 500 hrs, DIPLOID (flow cytometry 2012)
• Tennosui = PI 665750 (2941.001) - Pyrus hybrid
  - Traits: DIPLOID (flow cytometry 2012)
• Thanksgiving = PI 617661 (2606.001) - Pyrus hybrid - VIRUS INFECTED
  - Virus Biological Assays - Positive: PV-2002
  - Traits: VERY LATE RIPE, DIPLOID (flow cytometry 2012)
• Thomas = PI 617635 (2565.001) - Pyrus hybrid
  - Pedigree: Pyrus ussuriensis x Bartlett
  - Virus Biological Assays - Negative: NP-1996 PV-1996
  - Traits: COLD HARDY, DIPLOID (flow cytometry 2012)
• 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)
• Turnbull (Turnbull Giant) = PI 617642 (2573.001) - Pyrus hybrid
  - Pedigree: Chance Seedling
  - Virus Biological Assays - Negative: MM-1999 NP-1996 PV-1999
  - Traits: LARGE FRUIT, LOW CHILL 250 hrs, SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Ure = PI 541556 (2285.001) - Pyrus hybrid
  - Virus Biological Assays - Negative: NP-1990 PV-1990
  - Traits: COLD HARDY, SCAB RESISTANT, LOW CHILL, DIPLOID (flow cytometry 2012)
• Van Fleet Hybrid No. 1 = PI 64229 (588.001) - Pyrus hybrid
  - Pedigree: P. communis x chinese type
  - Virus Biological Assays - Negative: N.Poiteau-1985 Pyronia-1989 V.Crab-1988
  - Traits: SCAB RESISTANT, DIPLOID (flow cytometry 2012)
• Vermilion = PI 641290 (2810.001) - Pyrus hybrid
  - Traits: LOW CHILL, DIPLOID (flow cytometry 2012)
• Vineland 29018 = PI 145821 (596.001) - Pyrus hybrid - VIRUS INFECTED
  - Pedigree: Bartlett x Ya Li
  - Virus Lab Assays - Negative: APMV-1987 PNRSV-1987
  - Virus Biological Assays - Negative: Bosc-1989 N.Poiteau-1987 Pyronia-1987 V.Crab-1985
  - Traits: DIPLOID (flow cytometry 2012)
• Waite (Canner) = PI 66131 (598.001) - Pyrus hybrid
  - Pedigree: Kieffer x unknown European type
  - Virus Lab Assays - Negative: PBCVd-2000
  - Virus Biological Assays - Negative: Bosc-1987 M.micromalus-1999 N.Poiteau-2003 P.Crassane-1984 Pyronia-1988
  - Traits: FIRE BLIGHT RESISTANT, DIPLOID (flow cytometry), MALE STERILE