Table 7: Mean feedstock compositions estimated for four switchgrass based on half-sib progeny performance at the Knoxville, TN, under 1-cut (2010 to 2011) and 2-cut (2012 to 2013) system&†.
Population | Ethanol mL kg-1 | Cellulose (%) | Hemicellulose (%) | Lignin (%) |
-------------------------------One-cut system (2010-2011)--------------------------------------- | ||||
ARK | 260 a | 41.4 a | 37.0 ab | 10.1 a |
OKN | 259 ab | 41.0 b | 37.1 a | 10.1 a |
OKS | 258 b | 40.9 b | 36.7 bc | 10.1 a |
TX | 256 c | 40.4 c | 36.7 c | 9.9 a |
Mean | 258 | 41.0 | 36.8 | 10.1 a |
LSD | ||||
--------------------------Two-cut system (2012-2013)---------------------------- | ||||
ARK | 258 a | 38.1 a | 40.4 ab | 5.1 a |
OKN | 254 b | 37.1 b | 40.4 a | 5.0 ab |
OKS | 253 c | 37.1 b | 40.2 ab | 5.0 ab |
TX | 251 d | 36.7 c | 39.9 c | 4.9 b |
Mean | 254 | 37.35 | 40.2 | 5.0 |
LSD |