Agromorphological characterization of Sesamum radiatum (Schum. and Thonn.), a neglected and underutilized species of traditional leafy vegetable of great importance in Benin)

Abstract

Sesamum radiatum (Schum. and Thonn) is a traditional leafy vegetable of national importance in Benin. Although, it is cultivated and consumed in many regions of the country, it is still unfortunately neglected by scientific research. In order to fill in the knowledge gaps necessary for its varietal improvement, 16 accessions collected from different agro-ecological zones were characterized using 16 quantitative morphological traits. A significant variability was found among the accessions. Day to flowering, day to fruiting, total biomass, plant height, noose diameter, number of fruits per plant and number of seeds per fruit were some of the most discriminating parameters. Multivariate analysis (principal component analysis and cluster analysis) revealed four distinct agro-morphological groups of varying performance which will be highly useful in varietal improvement. Correlation analyses between descriptors revealed uniquely desired positive and negative relationships hence, indicating predictable success for eventual breeding program. To further investigate the genetic basis of the phenotypic diversity revealed among S. radiatum accessions, the use of molecular markers such as amplified fragment length polymorphisms (AFLPs) is recommended.

Genetic Diversity and Environmental Influence on Growth and Yield Parameters of Bambara Groundnut

“…Several studies also support these findings (Farhad et al, 2008;Usman et al, 2014;Atoyebi et al, 2017a;Mohammed et al, 2020). In addition, PC1 is the most powerful criterion for selection for yield improvement (Adeoti et al, 2012). In this study, leaf width, hundred seed weight, seed width, seed thickness, seed length, and yield have more influence on PC1.…”

Genetic Inconsistency Assessment and Selection Criteria of Bambara groundnut (Vigna subterranea L.Verdc.) Landraces for High Yield Revealed by Qualitative and Quantitative traits

“…Shegro et al [24] grouped the 20 Bambara groundnut accessions by PCA analysis using quantitative traits. For yield improvement the selection PC1 was revealed as the most powerful criterion concluded by the work of Adéoti et al [87] and Mih et al [88]. In my research total pod numbers, mature pods number, seed number, dry seed weight and yield kg/ha occupied high values in PC1.…”

Multivariate analysis for yield and yield-related traits of amaranth genotypes from Ethiopia

“…Several studies also support these findings [26, 64]. In addition, PC1 is the most powerful criterion for selection for yield improvement [ 64 ]. Days to flowering, basal stem diameter, plant height at maturity, plant height at flowering, auxiliary inflorescence length, number of branches, leaf length, leaf width, terminal inflorescence lateral length, leaf yield, grain yield, grain sink filling rate, and thousand seed weight were all investigated in this study have a greater impact on PC1.…”