Systemic shift needed: Indigenous crops as cornerstone of climate-adaptive food systems in Nigeria and beyond

Indigenous crops like akidi and cocoyam represent centuries of adaptive selection by local farmers, encoding resilience to pests, drought, and soil degradation that modern hybrids cannot match. These crops are not merely 'alternative' but foundational to food sovereignty, with seed-saving practices ensuring genetic diversity that industrial agriculture erodes. However, their integration into climate-resilient frameworks is often tokenistic, with indigenous knowledge reduced to data points rather than recognized as a living system of innovation.

The marginalization of indigenous crops is rooted in colonial land grabs and the imposition of cash-crop economies, which disrupted traditional farming systems. Post-independence policies, including Nigeria's National Accelerated Food Production Program (1970s), further entrenched hybrid seeds and chemical inputs, aligning with World Bank and IMF structural adjustment demands. The Green Revolution of the 1960s-80s explicitly targeted indigenous varieties as 'low-yielding' to justify their replacement, despite evidence of their long-term resilience.

Globally, indigenous agricultural systems from the Andes to South Asia demonstrate that polyculture and seed diversity are key to climate adaptation, yet these models are rarely integrated into policy. In Mexico, the milpa system combines maize, beans, and squash to create self-fertilizing, drought-resistant plots, while in Nigeria, the yam-based cropping systems of the Middle Belt achieve similar outcomes. These systems challenge the monoculture paradigm but are dismissed as 'inefficient' in productivity metrics that ignore ecological and social costs.

Scientific studies confirm that indigenous crops often have higher nutritional density and lower water requirements than hybrid varieties, with cocoyam showing resilience to flooding and akidi to heat stress. Agroecological research demonstrates that polycultural systems reduce pest outbreaks and soil degradation, yet funding for such studies is dwarfed by investments in biotechnology. The scientific community's bias toward controlled trials and patentable innovations overlooks the empirical, community-based validation of indigenous practices over generations.

Indigenous agricultural knowledge is often inseparable from cultural and spiritual practices, such as the Yoruba tradition of 'Aje' (sacred seeds) or the Igbo belief in 'Ani' (Earth deity) as a custodian of fertility. Artistic expressions like the Benin bronze plaques depicting agricultural rituals or the Hausa embroidery symbolizing harvest cycles encode ecological wisdom that transcends utilitarian framing. These dimensions are erased when indigenous crops are reduced to 'climate-resilient commodities' in policy discourse.

Modeling future food systems must incorporate indigenous crop calendars, which predict planting times based on lunar cycles and bird migrations, offering adaptive strategies to erratic rainfall. Scenario planning should assess the risks of corporate seed monopolies under climate change, where a single drought-resistant patented crop could fail catastrophically. Indigenous-led seed banks, such as those in Ethiopia's Tigray region, provide templates for decentralized, community-managed resilience that outperform top-down interventions.

Women farmers, who are the primary custodians of seed diversity in Nigeria, are systematically excluded from policy discussions despite their disproportionate role in food production. Smallholder farmers, particularly in the Niger Delta and Sahel regions, face land dispossession from agribusiness and state violence, yet their knowledge of flood-resistant crops like bambara groundnut is ignored. Pastoralist communities, whose mobility and herd management strategies buffer against drought, are framed as 'backward' rather than as innovators in climate adaptation.