Details for: PI 600728, Lolium perenne L., 'YORKTOWN II'


Summary Data
Taxonomy:
Lolium perenne L.
Cultivar:
'YORKTOWN II'
Origin:
Developed – New Jersey, United States
Received by NPGS:
1980
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Availability
FormQuantityNoteInventoryCart
Seed100 countPI 600728 98o SD
Seed available for distribution is a limited resource. The quantity of seed distributed is hopefully sufficient to conduct the intended research. If additional seed is required, the recipient is urged to grow and reproduce the seed. Repeated requests for seed of the same accession will not be honored.
  
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SEED

Core Passport Data
Taxonomy:
Lolium perenne L.
Cultivar:
'YORKTOWN II'
Origin:
Developed – New Jersey, United States
Received by NPGS:
1980
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Developed
PRE 1980.
New Jersey, United States

Developer(s):
Donated
1980.
New Jersey, United States

Donor(s):
Accession Names and Identifiers
'YORKTOWN II'
Type: Cultivar name

Foundation Lot J07-7
Type: Other or unclassified name

Narrative
Perennial ryegrass, a six-clone synthetic cultivar, leafy, persistent, turf-type ryegrass capable of producing an attractive, moderately dark-green turf of finer texture, greater density, and a slower rate of vertical growth than many other perennial ryegrass cultivars. Has shown good winter performance, resistance to the brown blight disease; improvement over Yorktown in summer performance, resistance to large brown patch disease caused by Rhizoctonia solani Kuhn and some races of crown rust incited by Puccinia coronata Corda var. lolii Brown. Has rapid germination, ease of establishment, and superior mowing qualities to common ryegrass and other cultivars. Performed well for fall or winter overseeding of bermudagrass. Parental clones do not carry the gene for fluorescent seedlings.
Lolium perenne L.
Genus:
Lolium
Family:
Poaceae (alt. Gramineae)
Subfamily:
Pooideae
Tribe:
Poeae
Subtribe:
Loliinae
Nomen number:

22494
Place of publication:

Sp. pl. 1:83. 1753
Verified:
05/08/1992 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Autonym(s)
Lolium perenne L. subsp. perenne

Heterotypic Synonym(s)
Lolium boucheanum Kunth
Lolium marschallii Steven

Common names
LanguageNameAlternate namenoteseqCitation
EnglishEnglish ryegrass  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
Englishperennial ryegrass  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Afrikaansmeerjarige raaigras  2Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa. Plant Protection Research Institute, Handbook 12
Arabicgazun  2Boulos, L. & M. N. El-Hadidi. 1984. The weeds of Egypt.
English (Canada)perennial rye grass Agriculture & Agri-Food Canada official name2Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.
Frenchivraie vivace  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Frenchray-grass anglais  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
French (Canada)ivraie vivace Agriculture & Agroalimentaire Canada nom officiel2Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.
Germandeutsches Weidelgras  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Germanenglisches Raygras  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Italianloglio perenne  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Japanese Rōmajihoso-mugi  2Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Portugueseazevém-vivaz  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Portugueselólio-perenne  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishballico perenne  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishcésped inglés  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishraygras  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedishengelskt rajgräs  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinesehei mai cao  2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Transcribed Koreanhomilpul  2Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:106.
Annotations
Other Links
Storage Information Form
Storage Information Form
Actions
Pathogens
Vouchers
Citations
Pedigree
Intellectual Property Rights
Crop Science Registration. CV-70, OTHER GRASSES. Issued: 01 Jan 1981.
  • 1981. Crop Sci. (Madison) 21(1):144. Note: CV-70

U.S. Plant Variety Protection
PVP 7800001
Variety: Yorktown II
Taxonomy: Lolium perenne L.
Experimental name/synonym: NA
Crop: RYEGRASS, PERENNIAL
Applicant: Lofts Seed Company, Inc.
Date filed: 10/06/1977
Date issued: 05/01/1980
Status: Certificate Expired
Status date: 05/01/1997

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
MORPHOLOGYSeed weight 100Weight of 100 seeds in grams.0.157 GRASS.SEEDWEIGHT.WRPISPI 600728 98o SD