Table 1 Composition analysis (as percentage of total dry weight) for the July and October harvests of Cave-in-Rock (CIR) and Alamo switchgrass.

Glucan^a

30.6 ± 0.2^d

33.6 ± 0.5^e

32.6 ± 0.3^f

32.9 ± 0.2^f

Sucrose

5.1 ± 0.3^d

2.4 ± 0.2^e

3.8 ± 0.2^f

3.8 ± 0.4^f

Xylan

19.4 ± 0.3^d

25.3 ± 0.2^e

22.8 ± 0.1^f

23.0 ± 0.2^f

Arabinan

2.0 ± 0.1^d

2.0 ± 0.1^f

1.8 ± 0.1^e

2.0 ± 0.1^d

Lignin^b

10.4 ± 0.4^d

16.7 ± 0.5^e

15.4 ± 0.4^f

17.2 ± 0.2^e

Solubles^c

26.0 ± 0.6^d

15.8 ± 0.1^e

18.1 ± 0.2^f

15.0 ± 0.2^g

Ash

5.0 ± 0.06^d

3.9 ± 0.02^e

2.5 ± 0.03^f

2.0 ± 0.01^g

Closure

95.4 ± 0.8

97.3 ± 0.7

93.2 ± 0.6

92.1 ± 0.4