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United States Department of Agriculture

Agricultural Research Service

Title: Reproductive Characteristics and Breeding Improvement Potential of Switchgrass

Authors
item Taliaferro, C - OKLAHOMA STATE UNIVERSITY
item Vogel, Kenneth
item Bouton, J - UNIVERSITY OF GEORGIA
item Mclaughlin, S - DEPT OF ENERGY
item Tuskan, G - DEPT OF ENERGY

Submitted to: Biomass Conference of the Americas Proceedings and Abstracts
Publication Type: Proceedings
Publication Acceptance Date: September 15, 1999
Publication Date: September 30, 1999
Citation: Taliaferro, C.M., Vogel, K.P., Bouton, J.H., Mclaughlin, S.B., Tuskan, G.A. 1999. Reproductive characteristics and breeding improvement potential of switchgrass. Biomass Conference of the Americas Proceedings and Abstracts.p. 147-153.

Technical Abstract: The genetic improvement of switchgrass, Panicum virgatum L., is an important component of the effort to develop the species as a biofuels crop. This paper reports research progress on elucidating reproductive characteristics and improvement potential of the species. Recent research confirms switchgrass to be highly outcrossed, highly self-incompatible, and dcomprised mainly of tetraploid (2n=4x=36) and octaploid (2n=8x=72) cytotypes. Hybridization potential is very low between plants of different ploidy and relatively high between plants of the same ploidy, regardless of ecotype. Breeding results based on phenotypic vs. genotypic recurrent selection procedures are discussed.

Last Modified: 12/19/2014