Details for: W6 549, Parthenium argentatum A. Gray, CAL-6

Summary Data

Taxonomy:

Parthenium argentatum A. Gray

Top Name:

CAL-6

Origin:

Donated – California, United States

Maintained:

National Arid Land Plant Genetic Resources Unit

Received by NPGS:

1986

Improvement Status:

Breeding material

Form Received:

Seed

Backup Location:

National Laboratory for Genetic Resources Preservation

Availability

This accession is not available. Contact site for status.

National Arid Land Plant Genetic Resources Unit

Currently unavailable due to reduced staffing

Images (5 total. Click on image for more.)

Core Passport Data

Taxonomy:

Parthenium argentatum A. Gray

Top Name:

CAL-6

Origin:

Donated – California, United States

Maintained:

National Arid Land Plant Genetic Resources Unit

Received by NPGS:

1986

Improvement Status:

Breeding material

Form Received:

Seed

Source History

Donated

1986.
California, United States

Donor(s):

Estilai, A., Guayule Development Project

Accession Names and Identifiers

CAL-6

Type: Developer identifier

C250-3

Type: Donor identifier

NSL 202445

Type: Site identifier

Group: NSSL

National Seed Storage Laboratory (USA)

W6 549

Type: Site identifier

Group: W6

Western Regional Plant Introduction (W6) accession numbers

USDA-ARS, WRPIS

Narrative

High rubber yielding germplasm developed from a single plant selection. At 21 months the plants which contributed seed to Cal-6 produced 2.3 times more rubber (910.2 Kg/h/y) and 2.3 times more resin (877.4 Kg/h/y) than the check variety N565. Tetraploid with 2n = 72 chromosomes. Reproduces by facultative apomixis. On average it produces 12.5% off-types. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)

Parthenium argentatum A. Gray

Genus:

Parthenium

Family:

Asteraceae (alt. Compositae)

Subfamily:

Asteroideae

Tribe:

Heliantheae

Nomen number:

26802

Place of publication:

J. Torrey in W. H. Emory, Rep. U.S. Mex. bound. 2(1):86. 1859

Protologue link:

https://biodiversitylibrary.org/page/28881345

Verified:

07/18/2008 by ARS Systematic Botanists.

Other conspecific taxa

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

Common names

Language	Name	seq	Citation
English	guayule	1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
English	Mexican-rubber	1	1961. Webster's third new international dictionary.
German	Guayule	2	Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen
Swedish	guayule	2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)

Annotations