Improving Pigeonpea for Climate Resilience

Pigeonpea ( Cajanus cajan L.), a resilient and nutrient-rich legume, is vital for smallholder farmers in sub-Saharan Africa, providing both food security and income. Its ability to thrive in marginal soils, withstand harsh climates, and fix nitrogen makes it an essential component of sustainable farming systems. However, despite its potential, pigeonpea remains underutilized in sub-Saharan Africa due to limited breeding efforts and weak seed systems. Climate change exacerbates challenges such as erratic rainfall, rising temperatures, and increased pest and disease pressures, leading to yield losses and food insecurity. To address these issues, research has focused on genetic improvement, agronomic innovations, and value chain strengthening. Advances in genomics, including marker-assisted selection (MAS) and genome-wide association studies (GWAS), have facilitated the development of climate-resilient varieties with drought tolerance, early maturity, and pest resistance. Agronomic strategies such as optimized planting density, intercropping, and soil fertility management further enhance pigeonpea resilience. Post-harvest innovations like solar dryers and hermetic storage reduce losses and improve marketability. However, widespread adoption of improved varieties is hindered by reliance on informal seed systems, limited access to quality seeds, and weak extension services. Strengthening seed systems through participatory breeding, community seed banks, and policy support is crucial for ensuring farmer access to improved pigeonpea cultivars. By integrating traditional knowledge with modern innovations, pigeonpea can become a cornerstone of climate-resilient agriculture in Africa, contributing to food security, economic stability, and sustainable rural livelihoods.