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Registration of 'Liberty' switchgrass

Vogel, K. P., Mitchell, R. B., Casler, M. D., Sarath, G.
ARS USDA Submissions 2014 v.8 pp. 242
Panicum virgatum, biomass, crop yield, cultivars, energy crops, germplasm releases, latitude, longitude, overwintering, winter, Great Plains region, United States
‘Liberty’ switchgrass (Panicum virgatum L.) is a lowland type cultivar that is adapted to USDA Plant Hardiness Zones 4, 5, and 6 in the Great Plains and Midwest, USA east of 100o W. Longitude and potentially other regions where it has not been tested to date. It was developed for use as a perennial biomass energy crop and is the first high yielding biomass type lowland cultivar that is adapted to this region. It can produce greater biomass yields than upland or forage type switchgrass cultivars that have been developed previously for use in the region and has equivalent winter survival. It has significantly greater winter survival in its adaptation region than previously released lowland switchgrass cultivars that frequently have substantial winter damage and stand loss north of 40 degrees N latitude in the Great Plains and Midwest USA.