Characterization of semi-arid Chadian sweet sorghum accessions as potential sources for sugar and ethanol production
2020
Naoura, Gapili | Emendack, Yves | Baloua, Nébié | Vom Brocke, Kirsten | Hassan, Mahamat, Alhabib | Sawadogo, Nerbewende | Doyam Nodjasse, Amos | Djinodji, Reoungal | Trouche, Gilles | Echevarria Laza, Haydee | Institut Tchadien de Recherche Agronomique pour le Développement (ITRAD) ; Ministère de l'agriculture | USDA-ARS : Agricultural Research Service | International Crops Research Institute for the Semi-Arid Tropics [Niger] (ICRISAT) ; International Crops Research Institute for the Semi-Arid Tropics [Inde] (ICRISAT) ; Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR) | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Département Systèmes Biologiques (Cirad-BIOS) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | Université Joseph Ki-Zerbo de Ouagadougou = University of Ouagadougou (UJZK) | Texas Tech University [Lubbock] (TTU)
International audience
اظهر المزيد [+] اقل [-]إنجليزي. 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.
اظهر المزيد [+] اقل [-]المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique