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Characterization of semi-arid Chadian sweet sorghum accessions as potential sources for sugar and ethanol production

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Relation http://oar.icrisat.org/11646/
https://doi.org/10.1038/s41598-020-71506-9
doi:10.1038/s41598-020-71506-9
 
Title Characterization of semi-arid Chadian sweet sorghum accessions as potential sources for sugar and ethanol production
 
Creator Naoura, G
Emendack, Y
Baloua, N
vom Brocke, K
Hassan, M A
Sawadogo, N
Doyam Nodjasse, A
Djinodji, R
Trouche, G
Echevarria Laza, H
 
Subject Sorghum
 
Description Sweet sorghum (Sorghum bicolor (L.) Moench) is an important crop in Chad that plays an economic role
in the countryside were stalks are produced mainly for human consumption without any processing.
Unfortunately, very little information exists on its genetic diversity and brix content. Studies
performed in 2014 and 2015 showed that there were significant variations (p < 0.001) for all assessed
quantitative traits. Potential grain yield (0.12–1.67 t ha−1), days to 50% flowering (68.3–126.3 days),
and plant height (128.9–298.3 cm) were among traits that exhibited broader variability. Brix content
range from 5.5 to 16.7% across accessions, was positively correlated to stalk diameter and plant
height, but negatively correlated to moisture content in fresh stalk and potential grain yield. Fresh
stalk yield range from 16.8 to 115.7 Mg ha−1, with a mean value of 58.3 Mg ha−1 across accession.
Moisture content in fresh stalk range from 33.7 to 74.4% but was negatively correlated to fresh
stalk yield. Potential sugar yield range from 0.5 to 5.3 Mg ha−1 across accession with an average of
2.2 Mg ha−1. Theoretical ethanol yield range from 279.5 to 3,101.2 L ha−1 across accession with an
average of 1,266.3 L ha−1 which is significantly higher than values reported under similar semiarid
conditions. Overall, grain yields were comparatively low. However, two accessions had grain yield of
more than 1.5 t ha−1; which is greater than the average 1.0 t ha−1 for local grain sorghum varieties in
Chad. These could have multi-purpose uses; grains, sugar and bioenergy production.
 
Publisher Nature Research
 
Date 2020-09
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11646/1/s41598-020-71506-9.pdf
Naoura, G and Emendack, Y and Baloua, N and vom Brocke, K and Hassan, M A and Sawadogo, N and Doyam Nodjasse, A and Djinodji, R and Trouche, G and Echevarria Laza, H (2020) Characterization of semi-arid Chadian sweet sorghum accessions as potential sources for sugar and ethanol production. Scientific Reports (TSI), 10 (1). ISSN 2045-2322