Details for: PI 541908, Pyrus pyrifolia (Burm. f.) Nakai, 'Okolo'

Summary Data

Taxonomy:

Pyrus pyrifolia (Burm. f.) Nakai

Cultivar:

'Okolo'

Origin:

Developed – South Dakota, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

10 Feb 1983

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

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 (4 total. Click on image for more.)

Core Passport Data

Taxonomy:

Pyrus pyrifolia (Burm. f.) Nakai

Cultivar:

'Okolo'

Origin:

Developed – South Dakota, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

10 Feb 1983

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

1940.
South Dakota, United States
Comment: Culitvar introduced in 1940
Developer(s):

Hansen, Niels Ebbesen, South Dakota Agricultural Experiment Station

Donated

10 February 1983.
California, United States
Comment: Received from the Pyrus Foundation, Davis, CA to NCGR- Corvallis.
Donor(s):

Beutel, James A., University of California

Accession Names and Identifiers

'Okolo'

Type: Cultivar name

ASIAN CULTIVAR

Type: Site identifier

Group: CROPTYPE

CPYR 1185

Type: Other or unclassified name

Group: LOCAL

Corvallis local number

Narrative

Okolo (PI 541908).-Originated in Brookings, South Dakota, by N.E. Hansen, South Dakota Agriculture Experiment Station. Introduced in 1940. Open-pollinated seedling of Pyrus ussuriensis. Fruit: diam. about 2 1/4 inches; pyriform; skin light yellow with minute russet dots; stem long and stout; flesh white, firm, juicy, with delicious flavor. Tree: bears well. - Brooks and Olmo Register of Fruit and Nut Varieties

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

The Taxonomic Name Of The Accession When It Was Received: 31 Jul 1989, from Pyrus pyrifolia (Burm. f.) Nakai var. culta (Makino) Nakai to Pyrus pyrifolia (Burm. f.) Nakai

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid	PYRUS.PLOIDY.2013	CPYR 1185 .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 1185 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	4 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1988		Not Available
DISEASE	LEAF_SCAB	RATING OF DAMAGE CAUSED BY LEAF SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
DISEASE	PSEUDOMONAS	RATING OF DAMAGE CAUSED BY PSEUDOMONAS	1 - NO 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	2	PYRUS.CORVALLIS.2003.FABRAEA	CPYR 1185 .001 PL	Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	1 - NO DAMAGE	PYRUS.CORVALLIS.1987		Not Available
MORPHOLOGY	PEDICEL_ATTACHMENT	PEDICEL ATTACHMENT	U - SUNKEN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CAVITY	CAVITY	AS - ACUTE SHALLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX	CALYX	P - PERSISTANT	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX_BASIN	CALYX BASIN	OS - OBTUSE SHALLOW	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	1 - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICELS	NUMBER OF LENTICELS	7 - (1 = FEW, 9 = MANY)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICEL_SIZE	SIZE OF LENTICELS	3 - (1 = SMALL, 9 = LARGE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	DOTS	DOTS	O - OBSCURE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_COLOR	FLESH COLOR	C - CREAM	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_TEXTURE	FLESH TEXTURE	5 - (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	2 - (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	CORE_BREAKDOWN	DEGREE OF CORE BREAKDOWN, DETERMINED ON TREE RIPENED FRUIT	1 - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OXIDATION	OXIDATION OF CUT MEASURED AFTER 5 MINUTES	1 - NONE	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	7 - (1 = POOR, 9 = EXCELLENT)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	3 - (1 = LOW, 9 = HIGH)	PYRUS.CORVALLIS.1988		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	5 - (1 = LOW, 9 = HIGH)	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	87	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	89	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	98	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	103	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	98	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	99	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	106	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	107	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	116	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_RIPE	JULIAN DATE OF FULL RIPE FRUIT	283	PYRUS.CORVALLIS.1990		Not Available