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Characterization of Ethiopian Sweet Sorghum Accessions for 0Brix, Morphological and Grain Yield Traits

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Abstract

The improvement of sweet sorghum (Sorghum bicolor) for biofuel traits is getting more attention globally due to its sugar-rich stalk that can be used as a renewable energy product. An understanding and proper assessment of biofuel-related traits in sweet sorghum crop is an important step toward the development of superior cultivar. The study was conducted to characterize sweet sorghum collections of Ethiopia for 0Brix degree, some morphological and grain yield traits. A total of 180 accessions were collected and evaluated in two environments. The result revealed wide variability among the accessions collected from different regions. Collections from northern part of Ethiopia (Wello and Tigray) showed significantly high 0Brix mean value while collections from the rest of the regions (Hararge, West Shewa, East Wollega and Gojam) expressed lower 0Brix mean value but higher biomass for stalk sugar yield. Most of the accessions showed higher 0Brix mean value, which is similar to globally known sweet sorghum cultivars. Accessions with high 0Brix degree combined with high biomass traits like stalk diameter and plant height will be an ideal germplasm to be used for biofuel production. Hence, it is imperative to utilize these accessions in sweet sorghum breeding program in order to develop superior sugar-rich sweet sorghum cultivars.

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Author notes

  1. Belayneh Admassu

    Present address: ARS-USDA, 1691 S2700W, Aberdeen, ID, 83210, USA

Authors and Affiliations

  1. National Agricultural Biotechnology Research Center, P.O Box 2003, Addis Ababa, Ethiopia

    Tesfaye Disasa & Belayneh Admassu

  2. Faculty of Life Sciences, Addis Ababa University, P.O Box 1176, Addis Ababa, Ethiopia

    Tesfaye Disasa & Tileye Feyissa

Authors
  1. Tesfaye Disasa
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  2. Tileye Feyissa
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  3. Belayneh Admassu
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Correspondence to Tesfaye Disasa.

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Disasa, T., Feyissa, T. & Admassu, B. Characterization of Ethiopian Sweet Sorghum Accessions for 0Brix, Morphological and Grain Yield Traits. Sugar Tech 19, 72–82 (2017). https://doi.org/10.1007/s12355-016-0440-3

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  • DOI: https://doi.org/10.1007/s12355-016-0440-3

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