Details for: PI 541170, Pyrus communis L., 'Dawn'

Summary Data

Taxonomy:

Pyrus communis L.

Cultivar:

'Dawn'

Origin:

Developed – Maryland, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Backup Location:

National Laboratory for Genetic Resources Preservation

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 (2 total. Click on image for more.)

Core Passport Data

Taxonomy:

Pyrus communis L.

Cultivar:

'Dawn'

Origin:

Developed – Maryland, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

1960.
Maryland, United States
Comment: Cultivar released in 1960
Developer(s):

University of Maryland

Donated

21 February 1981.
Oregon, United States
Comment: Received from collection at Medford, OR to NCGR-Corvallis
Donor(s):

Lombard, Porter, Oregon State University

Accession Names and Identifiers

'Dawn'

Type: Cultivar name

EUROPEAN CULTIVAR

Type: Site identifier

Group: CROPTYPE

CPYR 167

Type: Other or unclassified name

Group: LOCAL

Corvallis local number

CPYR 168

Type: Inventory

Narrative

Dawn (PI 541170).-Originated in Beltsville, Maryland, by U.S. Dept. of Agriculture. Introduced for trial in 1960. Michigan 437 (Barseck x Bartlett) x Comice; tested as US 570. Fruit: slightly smaller than Bartlett; pyriform, resembling Bartlett in shape but with a somewhat smoother surface; flesh sweet with a trace of acid, spicy, very juicy, quality very good, aromatic; almost entirely free of grit cells; ripens for prime eating in 12 to 14 days when held at 70F; ripens about 14 days earlier than Bartlett at Beltsville. Tree: upright; moderately vigorous; bears mainly on short terminals; not highly resistant to fire blight, probably no more so than Bartlett; flowers contain moderate quantities of pollen. Recommended for trial in areas where Bartlett can be grown, as a high-quality variety ripening 2 weeks before Bartlett. - Brooks and Olmo Register of Fruit and Nut Varieties

Pyrus communis L.

Genus:

Pyrus

Section:

Pyrus

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Maleae

Subtribe:

Malinae

Nomen number:

30474

Place of publication:

Sp. pl. 1:479, 2:1200. 1753

Protologue link:

https://biodiversitylibrary.org/page/358498

Comment:

probably of hybrid origin

Typification:

View in Linnean Typification Project

Verified:

07/07/2011 by ARS Systematic Botanists.

Other conspecific taxa

Pyrus communis L. subsp. caucasica (Fed.) Browicz (77 active accession[s])
Pyrus communis L. subsp. communis (39 active accession[s])
Pyrus communis L. subsp. pyraster (L.) Ehrh. (113 active accession[s])

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

Heterotypic Synonym(s)
Pyrus asiae-mediae (Popov) Maleev
Pyrus balansae Decne.
Pyrus bourgaeana Decne.
Pyrus communis L. subsp. bourgaeana (Decne.) Nyman
Pyrus communis L. var. mariana Willk.
Pyrus domestica Medik.
Pyrus elata Rubtzov
Pyrus medvedevii Rubtzov

Common names

Language	Name	note	seq	Citation
English	pear		1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
French	poirier		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
German	Birnbaum		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
German	Birne		2	Reichel, S. 1998. pers. comm. Note: re. German common names
German	Birnenbaum		2	Reichel, S. 1998. pers. comm. Note: re. German common names
Italian	pera		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Italian	pero		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Japanese Rōmaji	seiyō-nashi		2	Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Portuguese	pereira		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanish	pera		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Spanish	peral		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedish	päron		2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinese	xi yang li	as Pyrus communis var. sativa	2	Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Pyrus communis var. sativa
Transcribed Korean	byeongbaenamu		2	Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:122.

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.2007	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE		PYRUS.CORVALLIS.2001.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE		PYRUS.CORVALLIS.2002.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	2 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)		PYRUS.CORVALLIS.2003.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)		PYRUS.CORVALLIS.1994.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	4 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)		PYRUS.CORVALLIS.1996.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	4 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)		PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 168 .001 PL	Not Available
DISEASE	MILDEW	RATING OF DAMAGE CAUSED BY MILDEW	3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	4	PYRUS.CORVALLIS.2003.MILDEW	CPYR 168 .001 PL	Not Available
DISEASE	MILDEW	RATING OF DAMAGE CAUSED BY MILDEW	7 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	3	PYRUS.CORVALLIS.2002.MILDEW	CPYR 168 .001 PL	Not Available
GENSTOCK	PYRUS CORE SUBSET	A flag to indicate the accession is part of the core subset			PYRUS.CORE.2012		Not Available
MORPHOLOGY	PEDICEL_ATTACHMENT	PEDICEL ATTACHMENT	U - SUNKEN		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CAVITY	CAVITY	AM - ACUTE MEDIUM		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CAVITY	CAVITY	OS - OBTUSE SHALLOW		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX	CALYX	P - PERSISTANT		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX_BASIN	CALYX BASIN	OM - OBTUSE MEDIUM		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GROUND_COLOR	GROUND COLOR	Y - YELLOW		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	BL - BLUSH		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	N - NONE		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	ST - STRIPPED		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVERCOLOR_AMT	PERCENT OF FRUIT SURFACE WITH OVERCOLOR	40		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET	AMOUNT OF RUSSETING	1 - NONE		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET	AMOUNT OF RUSSETING	3 - (1 = NONE, 9 = COMPLETELY RUSSETED)		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	P - PEDICEL END		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICELS	NUMBER OF LENTICELS	5 - (1 = FEW, 9 = MANY)		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	LENTICEL_SIZE	SIZE OF LENTICELS	5 - (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	4 - (1 = FINE, 9 = COARSE)		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_TEXTURE	FLESH TEXTURE	6 - (1 = FINE, 9 = COARSE)		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	B - BUTTERY		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	D - DRY		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FRUITCORE	CORE	D - DISTANT		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	NUMBER OF STONE CELLS	5 - (1 = NO STONE CELLS, 9 = MANY STONE CELLS)		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT_SIZE	SIZE AND LOCATION OF STONE CELLS	M - MEDIUM		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	1 - NONE		PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	B - BLAND		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	3 - (1 = POOR, 9 = EXCELLENT)		PYRUS.CORVALLIS.STD		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	90		PYRUS.CORVALLIS.1991		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	91		PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	92		PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	98		PYRUS.CORVALLIS.1991		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	100		PYRUS.CORVALLIS.1991		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	106		PYRUS.CORVALLIS.1991		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	96		PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	97		PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	103		PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	115		PYRUS.CORVALLIS.1991		Not Available
PHENOLOGY	FULL_RIPE	JULIAN DATE OF FULL RIPE FRUIT	255		PYRUS.CORVALLIS.1990		Not Available