Details for: PI 665694, Festuca roemeri (Pavlick) E. B. Alexeev, 9079513


Summary Data
Taxonomy:
Festuca roemeri (Pavlick) E. B. Alexeev
Top Name:
9079513
Origin:
Collected – Oregon, United States
Received by NPGS:
10 Aug 2012
Improvement Status:
Wild material
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Availability
FormQuantityNoteInventoryCart
Seed200 countPI 665694 2012o 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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Core Passport Data
Taxonomy:
Festuca roemeri (Pavlick) E. B. Alexeev
Top Name:
9079513
Origin:
Collected – Oregon, United States
Received by NPGS:
10 Aug 2012
Improvement Status:
Wild material
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Collected
PRE 2003.
Oregon, United States

Donated
PRE 24 August 2012.
Oregon, United States

Donor(s):
Accession Names and Identifiers
9079513
Type: Institute identifier
Group: NRCS
Natural Resources Conservation Service

San Juan Germplasm Roemer's Fescue
Type: Donor identifier

Narrative
San Juan Germplasm Roemer's fescue is a native cool season, perennial bunchgrass with mostly basal foliage. The foliage is fine textured and densely tufted (cespitose). Morphological diversity among the three parent populations appears moderate. Leaves are sometimes glaucous (covered with a whitish waxy coating) and their color varies throughout a wide spectrum of greens and pale blues for this germplasm. Plants rarely flower until the second full growing season. Stem color ranges from green to purple or red, turning mostly straw colored at seed maturity. Mean culm (plant) heights varied from 86 to 88 cm (34-35 in) and mean basal width ranged from 12 to 14 cm (4.7-5.5 in). The botanical traits for the three populations that form San Juan Germplasm Roemer?s fescue fall within the taxonomic limits of Festuca roemeri var. roemeri (Wilson, 2007). The panicle (seed head or inflorescence) is loosely open to moderately contracted and 5-20 cm (2-8 in) long; branches are erect to slightly spreading. The spikelets are 9-13.5 mm (0.35-0.53 in) long with 4-6 florets. Glumes are exceeded by the upper florets. Lemma awns are 2-5 mm (0.08 -0.20 in) long. Leaf sheaths are closed for less than half their length and collars are glabrous; ligules are 0.1- 0.5 mm (0.004-0.02 in) long; blades are 0.5-1.2 mm (0.02-0.05 in) in diameter (Darbyshire and Pavlick, 2007). Roemer's fescue is an allotetraploid (2n=28) and is highly cross-pollinated by wind. Among the three parent populations representing San Juan Germplasm, mean flowering date (Julian date 136) and seed maturity dates (Julian dates 170-172) were similar. Incidence of rust disease was low (0-4%).
Festuca roemeri (Pavlick) E. B. Alexeev
Genus:
Festuca
Family:
Poaceae (alt. Gramineae)
Subfamily:
Pooideae
Tribe:
Poeae
Subtribe:
Loliinae
Nomen number:

423853
Place of publication:

Novosti Sist. Vyssh. Rast. 22:23. 1985
Verified:
06/03/2002 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Festuca idahoensis Elmer var. roemeri Pavlick

Homotypic Synonym(s)
Festuca idahoensis Elmer subsp. roemeri (Pavlick) S. G. Aiken

Common names
LanguageNameAlternate namenoteseqCitation
EnglishRoemer's fescue  1USDA, NRCS. United States Department of Agriculture, Natural Resources Conservation Service's PLANTS database (on-line resource).
Annotations
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Pathogens
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Citations
Pedigree
Description:
San Juan Germplasm is the result of simple geographic selection and open crossing of three populations for one generation for the limited purpose of enhancing genetic diversity over single wild populations. This germplasm is not anticipated to have substantial genetic improvement or hybrid vigor in terms of ease of establishment, reproductive capability, and plant growth over other naturally occurring, fit populations of Roemer's fescue found within the same ecoregion.

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
CYTOLOGICPloidy LevelPloidy level as determined by nuclear DNA contentallotetraploid GRASS.PASSPORT.DATAPI 665694 2012o SD