Morphological characterization of Amaranthus cruentus L. mutant lines derived from local and preferred Amaranthus cultivar

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AuteurKPOCHEME, EUSTACHE
AuteurFASSINOU HOTEGNI, VODJO NICODEME
AuteurMISSIHOUN, ANTOINE ABEL HOUMENOU
AuteurGNANVI, NOEL
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2022
ResumeAmaranthus species are of underutilized orphan crops grown in tropical and sub-tropical regions of the world. Benin’s most appreciated Amaranthus cruentus L. «local» cultivar is susceptible to saline stress. This study aimed to create genotypes agronomically, at least, as good as the «local» cultivar and useful for further saline tolerance breeding using mutation breeding. The morphological diversity among 19 gamma-irradiated A. cruentus mutant lines and «local» cultivar (control) were investigated, through a randomized complete block design with three replications, using 18 phenotypical traits (12 quantitative and 6 qualitative). The results show that among the six qualitative traits, only terminal inflorescence shape was discriminant. However, permutation analysis of variance revealed significant variability in quantitative traits: leaf width (CV=19%), Branches length (CV=47%), plant height (CV=25%), stem diameter (CV=29%), number of branches (21%) number of leaves (CV=25%). Multivariate analysis of quantitative traits showed the first two principal components contributing to 78.30% of observed variability. Correlation analysis revealed the significance of number of leaves, number of branches, plant height and leaf width for selecting better genotypes for biomass production. Mutant lines L1, L2, L6, L16, L18 and L23 showed high performances for traits cited above and could, therefore, be a good source of genes
Autre identifiantBECDB-16529
URIhttps://dspace.uac.bj/handle/123456789/13876
Languefr
Fait partie deInternational Journal of Biological and Chemical Sciences
SujetFood production
Sujetmutation breeding
Sujetphenotypic variation
Sujetorphan crops
SujetRepublic of Bénin
TitreMorphological characterization of Amaranthus cruentus L. mutant lines derived from local and preferred Amaranthus cultivar
TypeArticle

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