Details for: PI 617629, Pyrus hybr., 'John'

Summary Data

Taxonomy:

Pyrus hybr.

Cultivar:

'John'

Origin:

Developed – Saskatchewan, Canada

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

07 Feb 1996

Improvement Status:

Cultivar

Form Received:

Budwood

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.

There are no images for this accession.

Core Passport Data

Taxonomy:

Pyrus hybr.

Cultivar:

'John'

Origin:

Developed – Saskatchewan, Canada

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

07 Feb 1996

Improvement Status:

Cultivar

Form Received:

Budwood

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

1960.
Saskatchewan, Canada

Developer(s):

Patterson, C.F.

Donated

07 February 1996.
Ontario, Canada
Comment: Ag. Canada, Morden, Manitoba to Can. Clonal Genebank, to NCG
Donor(s):

Luffman, Margie, Agriculture Canada

Accession Names and Identifiers

'John'

Type: Cultivar name

Patterson, C.F.

CANADA PYR100

Type: Institute identifier

Group: CANADA CGB

Canadian Clonal Gene Bank

CANADA PYR106

Type: Institute identifier

Group: CANADA CGB

Canadian Clonal Gene Bank

Sask. PR-15

Type: Developer identifier

CPYR 2558

Type: Site identifier

Group: LOCAL

Corvallis local number

EUROPEAN CULTIVAR

Type: Site identifier

Group: CROPTYPE

Narrative

John (PI 617629).-Originated in Saskatoon, Saskatchewan, Canada, by C.F. Patterson, University of Saskatchewan, Introduced in 1960 for home gardens. Pyrus ussuriensis x Aspa; selected in 1958; tested as Sask. PR-15. Fruit: up to 3 inches long and 2 1/2 inches in diam. under non-irrigated field conditions at Saskatoon; skin thin, yellowing well before flesh becomes soft; quality good; ripens in late September. Tree: hardy. - Brooks and Olmo Register of Fruit and Nut Varieties

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	Sample Size	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid		PYRUS.PLOIDY.2013	CPYR 2558 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	2 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)		PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 2558 .001 PL	Not Available