Evaluation of Sweet Sorghum (Sorghum Bicolor (L.) Moench) Genotypes for Bioethanol Yield Potential

Herniwati, Marcia Bunga Pabendon, Karuniawan Puji Wicaksono, Budi Waluyo, Eko Widaryanto

Abstract

Bioethanol is a raw material for pharmaceutical and food production and a renewable and sustainable energy source. Sweet sorghum has great potential for producing bioethanol because of its characteristics, such as high sugar accumulation in the stems, fast plant growth, wide adaptability, and low input requirements. The objective of this research is to observe the morphological characteristics and bioethanol yield potential of promising lines of sweet sorghum, including  the lines 15020B, 1115-C, 4-183ABEOTO, AB-6-1-1, EA-13-1-1, KL2, 10(1-1), 23(1-1), Buleleng Abang, and WR2, and as checks, the Super-1 and Super-2 varieties. The observed variables include the plant growth variables, crop yield components, and ethanol yield of the stem juice and bagasse. The results showed that the lines WR2, KL2, and Buleleng Abang had the most potential for bioethanol production with volumes of 1090.82 l ha-1, 1116.50 l ha-1, and 961.08 l ha-1, respectively. The juice of sweet sorghum can yield higher ethanol than bagasse. Several morphological characteristics exhibit differences that can aid the selection process for high bioethanol potential lines. These results indicate that sweet sorghum can be developed as a raw material for bioethanol, but further multi-location trials are needed to ensure genotypic stability and sustainability.

 

Keywords: bioethanol; genotype; sweet sorghum

 

DOI：10.62321/issn.1000-1298.2023.09.06

 

 


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