Author:
Bouargalne Youssef,Ben Mrid Reda,Bouchmaa Najat,Zouaoui Zakia,Benmrid Bouchra,Kchikich Anass,El Omari Redouane,Kabach Imad,Mohamed Nhiri
Abstract
AbstractSorghum, the fifth most important cereal crop, is a well-adapted cereal to arid/semi-arid regions. Sorghum is known for multiple end-uses as food, feed, fuel, forage, and as source of bioactive compounds that could be used for medical applications. Although the great improvement in the process of sorghum breeding, the average yield of this crop is still very low. Therefore, exploring the genetic diversity in sorghum accessions is a critical step for improving this crop. The main objective of the current work was to study the genetic variation existing in a Moroccan sorghum collection. Indeed, 10 sorghum ecotypes were characterized based on agromorphological descriptors. Both quantitative (25) and qualitative (7) traits revealed variability (p < 0.05) among the studied ecotypes. At the seedling stage, most of the ecotypes showed good to high vigor (70%). However, as the sorghum plants grow, the difference between genotypes become more apparent, especially at the generative phase. For instance, three different panicle shapes have been observed, erect (50%), semi-bent (30%), and bent (20%) with different degree of compactness (20% for loose, semi-compact, and compact panicles, and 30% for semi-loose panicles). In another part of this study, the phytochemical composition and antioxidant activities of the sorghum ecotypes have been determined. The results showed variable total phenolic contents, and total flavonoid contents ranging from 125.86 ± 1.36 to 314.91 ± 3.60 mg GAE/g dw and 114.0 ± 13.2 to 138.5 ± 10.8 (mg catechin equivalent/100 g, dw) respectively, with a differential antioxidant activities as well. These results indicate that for any crop breeding program, it is preferable to take into consideration both morphological and biochemical traits for a better selection of high yielding varieties with high added value compounds. Therefore, the implication of these results in the context of sorghum breeding activities could be a resourceful option for farmers.
Publisher
Springer Science and Business Media LLC
Reference57 articles.
1. Ben Mrid, R., El Omari, R., El Mourabit, N., Bouargalne, Y. & Nhiri, M. Changes in the antioxidant and glyoxalase enzyme activities in leaves of two Moroccan sorghum ecotypes with differential tolerance to nitrogen stress. Aust. J. Crop Sci. 12, 1280–1287 (2018).
2. Dykes, L., Rooney, L. W., Waniska, R. D. & Rooney, W. L. Phenolic compounds and antioxidant activity of sorghum grains of varying genotypes. J. Agric. Food. Chem. 53, 6813–6818 (2005).
3. Dicko, M. H., Gruppen, H., Traoré, A. S., Voragen, A. G. & Van Berkel, W. J. Sorghum grain as human food in Africa: Relevance of content of starch and amylase activities. Afr. J. Biotechnol. 5, 384–395 (2006).
4. Ryu, H.-S., Kim, J. & Kim, H.-S. Enhancing effect of Sorghum bicolor L. Moench (Sorghum, su-su) extracts on mouse spleen and macrophage cell activation. Korean J. Food Nutr. 19, 176–182 (2006).
5. Kil, H. Y. et al. Antioxidant and antimicrobial activities of crude sorghum extract. Food Chem. 115, 1234–1239 (2009).
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