Details for: PI 634336, Lolium perenne L., 'EXTREME'

Summary Data

Taxonomy:

Lolium perenne L.

Cultivar:

'EXTREME'

Origin:

Developed – Idaho, United States

Maintained:

Western Regional PI Station

Received by NPGS:

08 Dec 2003

Improvement Status:

Cultivar

Form Received:

Seed

Life Form:

Perennial

Life Cycle:

Perennial

Backup Location:

National Laboratory for Genetic Resources Preservation

Availability

Form	Quantity	Note	Inventory	Cart
Seed	100 count		PI 634336 2004o 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.

Images (1 total. Click on image for more.)

Core Passport Data

Taxonomy:

Lolium perenne L.

Cultivar:

'EXTREME'

Origin:

Developed – Idaho, United States

Maintained:

Western Regional PI Station

Received by NPGS:

08 Dec 2003

Improvement Status:

Cultivar

Form Received:

Seed

Life Form:

Perennial

Life Cycle:

Perennial

Source History

Developed

PRE 08 December 2003.
Idaho, United States

Developer(s):

Accession Names and Identifiers

'EXTREME'

Type: Cultivar name

Narrative

Morphological measurements were taken at Post Falls, ID, which showed initial anthesis averaged from June 13 to 22. Mature plant height averaged from 62.3 to 65.2 cm and flag leaf height averaged from 28.2 to 29.6 cm. The variety Caddieshack looks the most similar to this cv. in the field. Later in maturity than Caddieshack. Entered in the 1994 National Turfgrass Evaluation Program's perennial ryegrass test, where demonstrated medium-fine leaf texture, good spring and winter density, and good spring, summer, and fall living ground cover. In these trials, displayed moderate to good resistance to pink snow mold (Microdochium nivale), melting out (Drechslera spp.), and red thread (Laetisaria fuciformis). Maintained favorable living ground cover after traffic treatments in Missouri. Developed for year-round turf on lawns, golf course fairways and roughs, industrial sites, and parks in areas where perennial ryegrass is adapted for turf. Can be used in blends and mixtures with other cool-season grasses like Kentucky bluegrass (Poa pratensis) and fine fescue (Festuca spp.). Showed excellent turf quality in winter overseeding trials with College of the Desert, Palm Desert, CA and was comparable to the top variety. Also exhibited good establishment and dark green color, but was one of the slowest to transition. Recommended for overseeding of dormant warm-season grasses.

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

Protologue link:

https://biodiversitylibrary.org/page/358102

Typification:

View in Linnean Typification Project

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

Language	Name	note	seq	Citation
English	English ryegrass		1	Rehm, S. 1994. Multilingual dictionary of agronomic plants
English	perennial ryegrass		1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Afrikaans	meerjarige raaigras		2	Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa. Plant Protection Research Institute, Handbook 12
Arabic	gazun		2	Boulos, L. & M. N. El-Hadidi. 1984. The weeds of Egypt.
English (Canada)	perennial rye grass	Agriculture & Agri-Food Canada official name	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.
French	ivraie vivace		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
French	ray-grass anglais		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
French (Canada)	ivraie vivace	Agriculture & Agroalimentaire Canada nom officiel	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.
German	deutsches Weidelgras		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
German	englisches Raygras		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Italian	loglio perenne		2	International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Japanese Rōmaji	hoso-mugi		2	Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Portuguese	azevém-vivaz		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Portuguese	lólio-perenne		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanish	ballico perenne		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanish	césped inglés		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanish	raygras		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedish	engelskt rajgräs		2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinese	hei mai cao		2	Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Transcribed Korean	homilpul		2	Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:106.

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Sample Size	Study	Inventory	Availability
MORPHOLOGY	Seed weight 100	Weight of 100 seeds in grams.	0.246		GRASS.SEEDWEIGHT.WRPIS	PI 634336 2004o SD