Phenotypic Behaviour and Association Analysis of Agronomic Traits, Proximate, Nutrients and Quality Attributes of West Africa

Why It Matters

The findings give breeders concrete phenotypic targets to merge productivity with micronutrient density, speeding up malnutrition‑reduction efforts in West Africa.

Key Takeaways

• Significant variability found for yield, protein, zinc, and viscosity
• OK18, OK14, OK17 top yield; OK3, OK5, OK6 high nutrients
• Fruit weight and number at day 7 predict total yield
• Positive trait correlations enable simultaneous nutrition and yield improvement
• Recommended diallel hybridization and molecular integration for faster breeding

Pulse Analysis

West African okra (Abelmoschus caillei) is a staple that delivers both calories and micronutrients across sub‑Saharan diets. Yet, its biofortification potential remains largely untapped, prompting researchers to map the crop’s phenotypic diversity. By evaluating 21 accessions under a randomized complete block design, the study generated a rich dataset that links agronomic performance with protein, fiber, zinc and viscosity traits. This baseline is essential for any breeding program that aims to stack yield and nutrition. Moreover, the inclusion of both fresh fruit and processed okra meal data captures the crop’s value across the supply chain.

The analysis uncovered significant variability for yield, protein, fiber, zinc and ash, with genotypes OK18, OK14 and OK17 leading in fruit yield, while OK3, OK5 and OK6 excelled in protein and micronutrient density. Correlation and clustering revealed positive links between nutritional quality and yield components, suggesting that simultaneous improvement is feasible. Regression models highlighted fruit weight and fruit number at seven days as reliable predictors of total harvest, giving breeders concrete selection criteria. The positive association between zinc content and viscosity also indicates that texture improvements need not compromise mineral enrichment.

These findings align with the United Nations Sustainable Development Goals by offering a pathway to nutrient‑dense, high‑yielding crops that can alleviate malnutrition in rapidly growing populations. The authors recommend diallel hybridization among the top performers and integration of molecular markers to accelerate genetic gains. As climate pressures intensify, such multi‑trait breeding strategies will become a cornerstone of resilient food systems throughout West Africa and beyond. Policy makers can leverage these agronomic insights to design incentive programs that prioritize biofortified varieties, while private seed companies can commercialize hybrids that meet both farmer yield expectations and consumer nutrition demands.