RA 00048.pdf - OAR@ICRISAT

S w e e t s o r g h u m
s y r u p v a r i e t i e s
9 0 7 k g
s w e e t
s o r g h u m
s t a l k s
984 k g
w a t e r
363 k g
l e a v e s , p e d u n c l e ,
a n d h e a d s
286 k g
d r y m a t t e r
N i t r o g e n
A s h
Ether e x t r a c t , w a x , e t c .
S o l u b l e s
Fiber
8.6%
7.8
2.6
52.1
2 8 . 9
1 0 0 . 0 %
(kg)
24.6 n i t r o g e n p r o d u c t s
1 7 . 8 a s h
1 3 5 . 5 s o l u b l e s ( u n a t t a c h e d )
7.4 e t h e r e x t r a c t s , w a x e s
1 8 5 . 3
s o l u b l e s o l i d s
(kg)
82.6 f i b e r
4 . 4 a s h
13.4 s o l u b l e s a t t a c h e d t o f i b e r
1 0 0 . 4
i n s o l u b l e s
1 2 1 . 9 k g
f e r m e n t a b l e
s u g a r s a n d
s t a r c h e s
6 3 . 4 k g
n o n f e r m e n t a b l e
s o l i d s
9 5 . 9 k g
c o m b u s t i b l e
o r g a n i c s
4.4 k g
a s h
U s a b l e for f u e l
A v e r a g e y i e l d s :
T o n n e s / h a
T o t a l
S t a l k s
L e a v e s , p e d u n c l e ,
a n d h e a d s
4 7 . 4
19.3
6 6 . 7
Figure 3. Estimated approximate composition of sweet sorghum syrup varieties in the United States
(Nathan 1978).
that exceeds 1.0 (Sheehan et al. 1978).
The desirable characteristics of sweet sorghum
varieties for ethanol production are:
(1) production of a high biomass yield; (2) high
percentage of fermentable sugars along with
combustible organics; (3) comparatively short
growth period; (4) tolerance to drought stress;
(5) relatively low fertilizer requirements;
(6) production of grain for food or feed use; and
(7) the possibility of complete mechanization.
S o r g h u m — A C 4 P a t h w a y P l a n t
Sweet sorghum is classified as a C 4 malate-former
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