Details for: PI 352641, Pyrus pyrifolia (Burm. f.) Nakai, 'Imamura Aki'

Summary Data

Taxonomy:

Pyrus pyrifolia (Burm. f.) Nakai

Cultivar:

'Imamura Aki'

Origin:

Developed – Japan

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

24 Mar 1981

PI Assigned:

1970

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Inventory Volume:

178
View original Plant Inventory data in pdf format

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 (12 total. Click on image for more.)

Core Passport Data

Taxonomy:

Pyrus pyrifolia (Burm. f.) Nakai

Cultivar:

'Imamura Aki'

Origin:

Developed – Japan

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

24 Mar 1981

PI Assigned:

1970

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

Japan

Developer(s):

Furuhashi, T., Yamanoua-Cho

Donated

24 March 1981.
Maryland, United States
Comment: Received from Japan to Glenn Dale, MD to NCGR-Corvallis
Donor(s):

Waterworth, Howard, USDA, ARS

Accession Names and Identifiers

'Imamura Aki'

Type: Cultivar name

ASIAN CULTIVAR

Type: Site identifier

Group: CROPTYPE

CPYR 294

Type: Site identifier

Group: LOCAL

Corvallis local number

Narrative

This is a large, russet pear, and distinctly ovoid in shape. The flesh is firm, juicy, sweet, and of good quality. The calyx is usually deciduous, although in some specimens all of it or part of it is persistent. The fruit ripens late and is in good condition to eat during late fall and early winter. The Japanese regard this as their second best pear. It is extensively grown in Japan and southern Korea. The tree is a very vigorous and clean grower. The young shoots of small trees blight readily when inoculated, but it appears to be more resistant in the older, harder wood. It is unquestionably a variety of P. serotina var. culta. -- F.C. Reimer. 1919. Report of a trip to the Orient to collect and study Oriental pears.

Kubo (1962) reported that this variety originated near Takoaka, Kochi Prefecture, Japan. Dr. Minoru Kajiura, Director, Horticultural Research Station, Hiratsuka, Kanagawa, Japan, concurred, and added that Imamura Aki was a chance seedling. Although the date of origin is unknown, he stated that large, old trees of this variety are scattered in the Niyodo River basin (personal correspondence of May 6, 1965). -- W.H. Griggs and B.T. Awakiri. 1977. Asian Pear Varieties in California

Pyrus pyrifolia (Burm. f.) Nakai

Genus:

Pyrus

Section:

Pashia

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Maleae

Subtribe:

Malinae

Nomen number:

30569

Place of publication:

Bot. Mag. (Tokyo) 40:564. 1926

Verified:

07/13/2011 by ARS Systematic Botanists.

Other conspecific taxa

Pyrus pyrifolia (Burm. f.) Nakai var. culta (Makino) Nakai (0 active accession[s])
Pyrus pyrifolia (Burm. f.) Nakai var. pyrifolia (1 active accession[s])

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

Autonym(s)
Pyrus pyrifolia (Burm. f.) Nakai f. pyrifolia

Heterotypic Synonym(s)
Pyrus pyrifolia (Burm. f.) Nakai f. stapfiana (Rehder) Rehder
Pyrus serotina Rehder
Pyrus serotina Rehder var. serotina
Pyrus serotina Rehder var. stapfiana Rehder

Common names

Language	Name	Alternate name	note	seq	Citation
Swedish	sandpäron			2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Korean	dolbaenamu			2	Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:123.

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid	PYRUS.PLOIDY.2013	CPYR 294 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 294 .001 PL	Not Available
DISEASE	LEAF_SCAB	RATING OF DAMAGE CAUSED BY LEAF SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
DISEASE	LEAF_SCAB	RATING OF DAMAGE CAUSED BY LEAF SCAB	3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1987		Not Available
DISEASE	PSEUDOMONAS	RATING OF DAMAGE CAUSED BY PSEUDOMONAS	5 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1988		Not Available
DISEASE	RUST	RATING OF DAMAGE CAUSED BY RUST	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
DISEASE	Fabraea Leafspot Disease	Observed presence/severity of Fabraea Leafspot Disease	1	PYRUS.CORVALLIS.2003.FABRAEA	CPYR 294 .001 PL	Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1987		Not Available
MOLECULAR	SSR marker	Motif: (TC)6A(CT)20 F: 5ATTGGAACTCTCCGTATTGTGC3 R: 5ATCAACAGTAGTGGTAGCCGGT3	87:95:99	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CT)17 F: 5GTTCTATCTACCAAGCCACGCT3 R: 5CGTTTGTGTGTTTTACGTGTTG3	106:112	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (AG)7 F: 5TCCCGCCATTTCTCTGC3 R: 5GTTTAAACCGCTGCTGCTGAAC3	125:137	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (AC)13 F: 5GCGATTAAAGATCAATAAACCCATA3 R: 5AAGCAGCTGGTTGGTGAAAT3	145:147	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CA)6TT(CT)21 F: 5GCCCAGAAGCAATAAGTAAACC3 R: 5ATTGCTCCATGCATAAAGGG3	89:89	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GA)19 F: 5CAAGGAAATCATCAAAGATTCAAG3 R: 5CAAGTGGCTTCGGATAGTTG3	124:136	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GA)21 F: 5GCCATCTGAACAGAATGTGC3 R: 5GTTTCCCTTCATTCACATTTCCAG3	145:159	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CT)25 F: 5CGGCGGAAAGCAATCACCT3 R: 5GTTTGCCAGCCCTCTATGGTTCTCAGA3	167:175	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GA)22 F: 5TTGAAGATGTTTGGCTGTGC3 R: 5TGCATGTCTGTCTCCTCCAT3	191:191	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CT)19 F: 5CCCTACACAGTTTCTCAACCC3 R: 5CGTTTTTGGAGCGTAGGAAC3	205:205	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (TC)12 F: 5AATAAGCATTCAAAGCAATCCG3 R: 5TTTTTCCAAATCGAGTTTCGTT3	242:262	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GA)11 F: 5CTCCGCCGCTATAACACTTC3 R: 5GTTTACTCTGGAGGGTATGTCAAAG3	286:286	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (ACG)6 F: 5CATTAATACGCTGCTGTTTCTGC3 R: 5GTTCTTACTTGAATTGGGGTAGGGATTGT3	196:196	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (ACC)6 F: 5ACTCTCCGCAAAACAATGTCGTA3 R: 5GTTCTTTGTGAGAGTTTGAGGAGGAGAGC3	150:159	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CCACCG)2(CCA)4 F: 5TTCACTGCCCTTTTTACGTATGC3 R: 5GTTCTTCCCCGACAATCTGTAGAGAATCA3	170:170	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GATCAT)3 F: 5ATCCCAGCATTTCCCAAGATTTT3 R: 5CCGTCCGTGATACCTCTGTC3	304:304	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (TTC)5 F: 5GGTCATCACCCACTTAAAAACCA3 R: 5GTTCTTGTGCCCTGAAGTAATTGAGATGG3	149:156	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CCA)5, (CCT)5 F: 5GCTACCACAACAAGCTCAACAG3 R: 5GTTTATGTCATCCTGCTGATGTCC3	350:350	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (GTG)6 F: 5CGTTCCGATGAAGTGAAAGAG3 R: 5GTTTCCTGAAACTTGCCAATTGAAAC3	338:338	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MOLECULAR	SSR marker	Motif: (CAGCT)5 F: 5CCCTACAGAGTCATGCATCC3 R: 5GTTTGATGCTGGAGACGAGAAA3	122:122	PYRUS.DNA_Zurn et.al. 2019 unpublished	CPYR 294 .001 PL	Not Available
MORPHOLOGY	PEDICEL_ATTACHMENT	PEDICEL ATTACHMENT	U - SUNKEN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX	CALYX	P - PERSISTANT	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GROUND_COLOR	GROUND COLOR	Y - YELLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	N - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET	AMOUNT OF RUSSETING	9 - COMPLETELY RUSSETED	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	E - EVERYWHERE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICELS	NUMBER OF LENTICELS	5 - (1 = FEW, 9 = MANY)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICEL_SIZE	SIZE OF LENTICELS	7 - (1 = SMALL, 9 = LARGE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	DOTS	DOTS	C - CONSPICUOUS	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_COLOR	FLESH COLOR	W - WHITE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_TEXTURE	FLESH TEXTURE	4 - (1 = FINE, 9 = COARSE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	C - CRISP	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	J - JUICY	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FRUITCORE	CORE	M - MEDIAN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CARPEL_NUMBER	NUMBER OF CARPELS	5	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT	NUMBER OF STONE CELLS	4 - (1 = NO STONE CELLS, 9 = MANY STONE CELLS)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT_SIZE	SIZE AND LOCATION OF STONE CELLS	S - SMALL	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OXIDATION	OXIDATION OF CUT MEASURED AFTER 5 MINUTES	5 - (1 = NONE, 9 = SEVERE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	P - SPICY	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	R - AROMATIC	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	S - SWEET	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	QUALITY	QUALITY OF FRUIT FLESH A COMBINATION OF FLAVOR, TEXTURE AND AROMA	4 - (1 = POOR, 9 = EXCELLENT)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	4 - (1 = LOW, 9 = HIGH)	PYRUS.CORVALLIS.1988		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	4 - (1 = LOW, 9 = HIGH)	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	100	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	87	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	88	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	88	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	95	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	101	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	108	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	90	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	94	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	96	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	106	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	106	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	107	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	109	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	115	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_RIPE	JULIAN DATE OF FULL RIPE FRUIT	240	PYRUS.CORVALLIS.1987		Not Available
PRODUCTION	YIELD	YIELD (PRODUCTIVITY)	1 - HIGH	PYRUS.CORVALLIS.1987		Not Available