Morphological and molecular characterization of sweet,grain and forage sorghum (Sorghum bicolor L.) genotypes grown under temperate climatic conditions |
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Authors: | Adnan Kanbar Ehsan Shakeri Dema Alhajturki Thomas Horn Yahya Emam Seyed Ali Tabatabaei |
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Affiliation: | 1. Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Karlsruhe, Germany;2. Department of Field Crops, Faculty of Agriculture, University of Damascus, Damascus, Syria;3. adnan.kanbar@kit.edu;5. Department of Crop Production and Plant Breeding College of Agriculture, Shiraz University, Shiraz, Iran;6. Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany;7. Seed and Plant Improvement Research Department, Yazd Agriculture and Natural Resources and Education Center, AREEO, Yazd, Iran |
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Abstract: | AbstractIn the present study, we used 12 genotypes of sorghum originated from different countries (five sweet, four grain and three forage). These different genotypes and types of sorghum were evaluated for the agro-morphological traits that are associated with the estimated sugar and bioethanol yield to estimate their phenotypic diversity. Analysis of variance showed significant differences between different types of sorghum for all the evaluated traits. Sweet sorghum genotypes, however, showed better performance with respect to all studied traits than the other genotypes. A positive significant correlation was observed between plant height, leaf number, leaf area, biomass yield, cane and bagasse yields, and the predicted bioethanol yield. Both, cluster and principal component analysis were performed to group the genotypes according to their agro-morphological and molecular similarity coefficients. For analytical approaches, the Iranian grain and forage genotypes clustered separately from the other genotypes. The clustering patterns obtained from the molecular dominant markers had higher discriminatory power than using morphological characters to separate sweet genotypes from the forage and grain sorghum ones. The results clearly indicated that sweet sorghum can be grown in Germany and maintains its superiority in biomass production and sugar yield over grain and forage sorghum types. |
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Keywords: | Sorghum bicolor genetic diversity biomass sugar brix degree ethanol |
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