Offered Papers Theme A: Efficient Production from Grassland
Description
Switchgrass (Panicum virgatum. L.) is a cross-pollinated, C4 species that is native to the prairies of temperate North America. Breeding to improve its forage quality has been conducted using post-heading, whole-tiller in vitro dry matter digestibility (IVDMD) as the selection criterion. One breeding cycle (C-1) for low IVDMD and three cycles for high IVDMD (C1, C2, C3) were completed in a switchgrass population adapted to the USA mid-latitudes. Sward trials demonstrated that whole plant IVDMD had been improved (Hopkins et al., 1993). The objective of this study was to determine the effect of breeding for tiller IVDMD on leaf, sheath, and stem digestibility and composition of plants of the derived populations.
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Divergent Breeding for Tiller Digestibility Modified Leaf, Sheath, and Stem Composition of Switchgrass (Panicum Virgatum L.)
Switchgrass (Panicum virgatum. L.) is a cross-pollinated, C4 species that is native to the prairies of temperate North America. Breeding to improve its forage quality has been conducted using post-heading, whole-tiller in vitro dry matter digestibility (IVDMD) as the selection criterion. One breeding cycle (C-1) for low IVDMD and three cycles for high IVDMD (C1, C2, C3) were completed in a switchgrass population adapted to the USA mid-latitudes. Sward trials demonstrated that whole plant IVDMD had been improved (Hopkins et al., 1993). The objective of this study was to determine the effect of breeding for tiller IVDMD on leaf, sheath, and stem digestibility and composition of plants of the derived populations.
