PI 688142 GRIN-Global

Summary Data

Taxonomy:

Pyrus hybr.

Cultivar:

'Turnbull Giant'

Origin:

Developed – Missouri, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

01 Dec 1994

Improvement Status:

Cultivar

Form Received:

Scion

Life Form:

Tree

Life Habit:

Tree

Availability

This accession is not available. Contact site for status.

National Clonal Germplasm Repository

Restricted Distribution due to Pathogen infection

Images (2 total. Click on image for more.)

Core Passport Data

Taxonomy:

Pyrus hybr.

Cultivar:

'Turnbull Giant'

Origin:

Developed – Missouri, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

01 Dec 1994

Improvement Status:

Cultivar

Form Received:

Scion

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

Missouri, United States

Developer(s):

Turnbull, Kenneth L.

Donated

01 December 1994.
Texas, United States
Comment: Received from Natelson to NCGR-Corvallis.
Donor(s):

Natelson, Ethan A.

Accession Names and Identifiers

'Turnbull Giant'

Type: Cultivar name

Turnbull, Kenneth L.

CPYR 2527

Type: Site identifier

Group: LOCAL

Corvallis local number

HYBRID CULTIVAR

Type: Site identifier

Group: CROPTYPE

Narrative

Also called Turnbull Giant. Seedling found in Missouri. Very low chill (about 200 - 250 hours). Sets enormous numbers of very large pears, no two of which look alike. Commonly breaks branches unless thinned. Thought to be an Asian pear - probably has P. calleryana in its parentage. Only fair quality but better than Orient as a firm pear.

Pyrus hybr.

Genus:

Pyrus

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Maleae

Subtribe:

Malinae

Nomen number:

300498

Comment:

interim designation used in GRIN for Pyrus hybrids which lack an acceptable binomial

Verified:

11/02/1990 by ARS Systematic Botanists.

Other conspecific taxa

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

Common names

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid	PYRUS.PLOIDY.2014	CPYR 2527 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 2527 .001 PL	Not Available
DISEASE	Fabraea Leafspot Disease	Observed presence/severity of Fabraea Leafspot Disease	3	PYRUS.CORVALLIS.2003.FABRAEA	CPYR 2527 .001 PL	Not Available

Agricultural Research Service

Details for: PI 688142, Pyrus hybr., 'Turnbull Giant'

Observations