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Registration of ‘Independence’ switchgrass

Journal Article · · Journal of Plant Registrations
DOI:https://doi.org/10.1002/plr2.20384· OSTI ID:2537908
 [1];  [2];  [3]
  1. University of Illinois Urbana-Champaign, IL (United States); Chungbuk National University, Cheongju (Korea, Republic of)
  2. University of Wisconsin-Madison, WI (United States); USDA-ARS, Madison, WI (United States)
  3. University of Illinois Urbana-Champaign, IL (United States)
+ Show Author Affiliations
Switchgrass (Panicum virgatum L.), a valuable forage and bioenergy crop, is established more easily than other native perennial warm-season grasses, but its establishment is still slower than that of annual crops. Vigorous switchgrass establishment is crucial for achieving its full potential yield and for effectively competing with weeds for water and nutrient availability. To satisfy this demand, ‘Independence’ (Reg. no. CV-295, PI 704577) switchgrass was developed at the University of Illinois at Urbana-Champaign. Independence was selected for establishment vigor, winter survivorship, and high biomass yield for two cycles from ‘Kanlow’. Here, it is characterized by rapid establishment, robust seedling growth, and the capacity to achieve peak production by the second year. Independence is well adapted to USDA hardiness zones 5b–7b. In field experiments conducted from 2016 to 2017, averaged over seven locations and all years, Independence annually yielded 13 Mg ha–1 of biomass, outperforming ‘Cave-in-Rock’ by 31%, ‘Liberty’ by 15%, ‘Shawnee’ by 42%, ‘Summer’ by 81%, and ‘Sunburst’ by 129%. In wet marginal sites in Illinois from 2020 to 2023, Independence exhibited an average biomass yield of 12 Mg ha–1, outperforming Shawnee by 31%, Liberty by 27%, and Kanlow by 19%, indicating its potential use on less productive land for annual crops. Independence was publicly released by the University of Illinois at Urbana-Champaign in October 2021.
Research Organization:
University of Illinois Urbana-Champaign, IL (United States)
Sponsoring Organization:
Agriculture and Food Research Initiative Competitive; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO)
Grant/Contract Number:
EE0008521
OSTI ID:
2537908
Journal Information:
Journal of Plant Registrations, Journal Name: Journal of Plant Registrations Journal Issue: 3 Vol. 18; ISSN 1936-5209
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Switchgrass Breeding, Genetics, and Genomics book January 2012
Switchgrass as a sustainable bioenergy crop journal April 1996
Development of switchgrass (Panicum virgatum) as a bioenergy feedstock in the United States journal June 2005
History of Grass Breeding for Grazing Lands in the Northern Great Plains of the USA and Canada journal February 2019
30 Years of Progress toward Increased Biomass Yield of Switchgrass and Big Bluestem journal January 2018
Switchgrass as a biofuels feedstock in the USA journal December 2006

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09 BIOMASS FUELS