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Title: Biomass Quality Responses to Selection for Increased Biomass Yield in Perennial Energy Grasses

Abstract

Perennial grasses are candidates for biomass cropping systems that are focused on providing a wide range of ecosystem services in addition to sustainable bioenergy production. Switchgrass (Panicum virgatum L.) and big bluestem (Andropogon gerardii Vitman) are two of the dominant grasses of the tallgrass prairie and both are candidates for development of multifunctional diverse production systems. Breeding programs for both species are aimed at increasing biomass yield as a mechanism of improving economic sustainability without increasing production costs. The objective of this study was to determine if long-term selection for increased biomass yield in these two species has had any adverse impacts on biomass quality, or the ability to convert biomass into bioenergy. Check cultivars and improved breeding populations of both species were evaluated for a wide range of biomass quality traits at 13 locations in the North Central and Northeastern USA, and a subset of these populations were also subjected to more intensive and detailed fermentation analyses. In general, lignin and ferulates either remained constant or decreased following selection for increased biomass yield in the various genetic pedigrees. These changes resulted in some increases in predicted ethanol production and in vitro digestibility. Here, the prediction of increased digestibility wasmore » confirmed by higher glucose release by pretreatment and deconstruction of an advanced lowland population. However, bioreactor fermentations with two different biofuel-producing microbes showed no differences in ethanol production. Overall, these studies indicated that the improved switchgrass and big bluestem populations had greater biomass yields without significantly reducing biomass quality or conversion efficiency into ethanol, suggesting that selection can achieve increases in biomass productivity while maintaining consistent biomass quality.« less

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [11];  [12];  [1];  [13];  [1]
+ Show Author Affiliations
  1. Univ. of Wisconsin, Madison, WI (United States)
  2. Univ. of Illinois, Urbana, IL (United States)
  3. Univ. of Nebraska, Lincoln, NE (United States)
  4. Iowa State Univ., Ames, IA (United States)
  5. USDA-ARS, University Park, PA (United States)
  6. The Ohio State Univ., Columbus, OH (United States)
  7. Purdue Univ., West Lafayette, IN (United States)
  8. Univ. of Missouri, Columbia, MO (United States)
  9. South Dakota State Univ., Brookings, SD (United States)
  10. Univ. of Minnesota, Grand Rapids, MN (United States)
  11. Michigan State Univ., East Lansing, MI (United States)
  12. Kansas State Univ., Manhattan, KS (United States)
  13. Michigan Technological Univ., Houghton, MI (United States)
Publication Date:
Research Org.:
Great Lakes Bioenergy Research Center (GLBRC), Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1893528
Grant/Contract Number:  
SC0018409; FC02-07ER64494
Resource Type:
Accepted Manuscript
Journal Name:
BioEnergy Research
Additional Journal Information:
Journal Volume: 16; Journal Issue: 2; Journal ID: ISSN 1939-1234
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; Panicum virgatum L.; Andropogon gerardii Vitman; Breeding; Genetics; Digestibility; Ethanol; Biofuels; Bioenergy

Citation Formats

Casler, Michael D., Lee, DoKyoung, Mitchell, Robert B., Moore, Kenneth J., Adler, Paul R., Sulc, R. Mark, Johnson, Keith D., Kallenbach, Robert L., Boe, Arvid R., Mathison, Russell D., Cassida, Kim A., Min, Doohong, Zhang, Yaoping, Ong, Rebecca G., and Sato, Trey K. Biomass Quality Responses to Selection for Increased Biomass Yield in Perennial Energy Grasses. United States: N. p., 2022. Web. doi:10.1007/s12155-022-10513-2.
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Casler, Michael D., Lee, DoKyoung, Mitchell, Robert B., Moore, Kenneth J., Adler, Paul R., Sulc, R. Mark, Johnson, Keith D., Kallenbach, Robert L., Boe, Arvid R., Mathison, Russell D., Cassida, Kim A., Min, Doohong, Zhang, Yaoping, Ong, Rebecca G., & Sato, Trey K. Biomass Quality Responses to Selection for Increased Biomass Yield in Perennial Energy Grasses. United States. https://doi.org/10.1007/s12155-022-10513-2
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Casler, Michael D., Lee, DoKyoung, Mitchell, Robert B., Moore, Kenneth J., Adler, Paul R., Sulc, R. Mark, Johnson, Keith D., Kallenbach, Robert L., Boe, Arvid R., Mathison, Russell D., Cassida, Kim A., Min, Doohong, Zhang, Yaoping, Ong, Rebecca G., and Sato, Trey K. Tue . "Biomass Quality Responses to Selection for Increased Biomass Yield in Perennial Energy Grasses". United States. https://doi.org/10.1007/s12155-022-10513-2. https://www.osti.gov/servlets/purl/1893528.
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@article{osti_1893528,
title = {Biomass Quality Responses to Selection for Increased Biomass Yield in Perennial Energy Grasses},
author = {Casler, Michael D. and Lee, DoKyoung and Mitchell, Robert B. and Moore, Kenneth J. and Adler, Paul R. and Sulc, R. Mark and Johnson, Keith D. and Kallenbach, Robert L. and Boe, Arvid R. and Mathison, Russell D. and Cassida, Kim A. and Min, Doohong and Zhang, Yaoping and Ong, Rebecca G. and Sato, Trey K.},
abstractNote = {Perennial grasses are candidates for biomass cropping systems that are focused on providing a wide range of ecosystem services in addition to sustainable bioenergy production. Switchgrass (Panicum virgatum L.) and big bluestem (Andropogon gerardii Vitman) are two of the dominant grasses of the tallgrass prairie and both are candidates for development of multifunctional diverse production systems. Breeding programs for both species are aimed at increasing biomass yield as a mechanism of improving economic sustainability without increasing production costs. The objective of this study was to determine if long-term selection for increased biomass yield in these two species has had any adverse impacts on biomass quality, or the ability to convert biomass into bioenergy. Check cultivars and improved breeding populations of both species were evaluated for a wide range of biomass quality traits at 13 locations in the North Central and Northeastern USA, and a subset of these populations were also subjected to more intensive and detailed fermentation analyses. In general, lignin and ferulates either remained constant or decreased following selection for increased biomass yield in the various genetic pedigrees. These changes resulted in some increases in predicted ethanol production and in vitro digestibility. Here, the prediction of increased digestibility was confirmed by higher glucose release by pretreatment and deconstruction of an advanced lowland population. However, bioreactor fermentations with two different biofuel-producing microbes showed no differences in ethanol production. Overall, these studies indicated that the improved switchgrass and big bluestem populations had greater biomass yields without significantly reducing biomass quality or conversion efficiency into ethanol, suggesting that selection can achieve increases in biomass productivity while maintaining consistent biomass quality.},
doi = {10.1007/s12155-022-10513-2},
journal = {BioEnergy Research},
number = 2,
volume = 16,
place = {United States},
year = {Tue Sep 06 00:00:00 EDT 2022},
month = {Tue Sep 06 00:00:00 EDT 2022}
}
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https://doi.org/10.1007/s12155-022-10513-2
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