Improved Cassava Varieties: Market-driven cassava breeding and promotion system

Improved cassava varieties crucial for enhancing food security, increasing farmer incomes, and reducing poverty in Africa.

This technology is a demand-led cassava breeding system that develops and promotes improved varieties tailored to market needs. It defines product profiles (e.g., fresh market, processing, biofortified) through stakeholder input, applies standard breeding and field testing, and works with regulators to release farmer-friendly varieties. Adoption is driven through demos, launch events, and media campaigns, ensuring better market alignment and wider uptake.

This technology is pre-validated.

9•9

Scaling readiness: idea maturity 9/9; level of use 9/9

Adults 18 and over: Positive high

This is a potential channel for income generation and source of livelihood.

The poor: Positive low

The technology stimulates the creation of local cassava seed enterprises and processing businesses, generating new economic opportunities and increasing the economic resilience of rural communities.

Under 18: Positive medium

The technology can create pathways for youth, especially in rural areas, to engage in cassava seed businesses, processing enterprises, and distribution networks.

Women: Positive medium

There is opportunity of job creation through value addition, seed entreprenership and processing.

Climate adaptability: Highly adaptable

Adoptable to variable climatic conditions. There are improved varieties for different climates

Farmer climate change readiness: Moderate improvement

Improved cassava varieties are climate resilient and drought tolerant therefore farmers can adopt these varieties to mitigate threats

Biodiversity: No impact on biodiversity

Improved cassava varieties are environmental friendly and improve soil health

Environmental health: Moderately improves environmental health

Through provision of green manures that improve soil structure, drought nature of the crop increases oxygen rates for humans and animals

Water use: Same amount of water used

Utilizes available water at the early stage of crop development

Soil quality: Reduces soil health and fertility

Improved cassava varieties are nutrient miners and heavy feeders that reduces soil fertility unlike other leguminous crops

Problem

Mismatch between available varieties and market needs
Many improved cassava varieties do not meet the specific product requirements of farmers, processors, or consumers.
Limited farmer adoption of improved varieties
Farmers often continue using local or recycled varieties due to lack of awareness, limited access, or absence of demand for new varieties.
Weak integration of market preferences into breeding programs
Breeding efforts often lack direct input from stakeholders across the value chain, resulting in varieties with low commercial appeal.
Insufficient supply of breeder/pre-basic seed
Breeding programs are under-resourced and unable to produce enough starter seed to introduce new varieties at scale.
Slow and complex variety release processes
Bureaucratic delays and unclear release procedures slow down the formal adoption of improved varieties.
Low visibility and awareness of new varieties
Inadequate promotion and lack of targeted communication limit awareness and uptake of improved varieties among end-users.

Solution

Development of market-preferred varieties
Breeding and selecting cassava varieties tailored to specific product profiles (e.g., fresh market, industry, biofortified).
Stakeholder-driven product profiling
Engaging producers, processors, and market actors to define variety traits that meet local market needs.
Structured breeding process
Applying standard methods and trials (from station to on-farm) to ensure varieties are high-performing and preferred by farmers.
Support for formal variety release
Guiding compliance with national regulations and facilitating variety registration and naming.
Demand creation and market promotion
Using demonstration trials, launch events, and media campaigns to promote adoption of new varieties.

Key points to design your project

To enhance cassava productivity and market value, this initiative focuses on the development and dissemination of improved cassava varieties that meet the needs of both farmers and processors. Many existing varieties fail to match market demand, leading to low adoption and underperformance in terms of yield and quality. This technology promotes a structured breeding approach that engages producers, processors, and market actors in defining the traits of desirable varieties—such as for fresh consumption, industrial use, or biofortified options.

Once product profiles are defined, breeding programs use standard methods, including seedling trials, clonal evaluations, and on-farm tests, to select varieties aligned with these profiles. Regulatory engagement ensures that varieties are officially released under names that are simple and meaningful to farmers. Promotion efforts include demonstration trials, awareness campaigns, and launch events that help increase visibility and adoption.

Although cost estimates are not specified, the approach requires investment in consultation, breeding trials, regulatory processes, and communication tools. Training materials and resources are available online to guide breeding practices and support awareness-raising efforts. This technology has been applied in countries like Nigeria and Tanzania and is supported by researchers affiliated with CGIAR and national institutions. Integrating market-demanded varieties into national seed systems can contribute significantly to increasing yields and farmer incomes, especially when aligned with broader seed delivery strategies.

IP

Open source / open access

Countries with a green colour: Tested & adopted
Countries with a bright green colour: Adopted
Countries with a yellow colour: Tested
Countries with a blue colour: Testing ongoing

Countries where the technology is being tested or has been tested and adopted
Country	Testing ongoing	Tested	Adopted
Angola	Testing ongoing	–Not tested	–Not adopted
Benin	Testing ongoing	–Not tested	–Not adopted
Cameroon	Testing ongoing	–Not tested	–Not adopted
Democratic Republic of the Congo	–No ongoing testing	Tested	Adopted
Gabon	Testing ongoing	–Not tested	–Not adopted
Ghana	Testing ongoing	–Not tested	–Not adopted
Liberia	Testing ongoing	–Not tested	–Not adopted
Nigeria	–No ongoing testing	–Not tested	Adopted
Republic of the Congo	–No ongoing testing	Tested	–Not adopted
Sierra Leone	Testing ongoing	–Not tested	–Not adopted

This technology can be used in the colored agro-ecological zones. Any zones shown in white are not suitable for this technology.

Agro-ecological zones where this technology can be used
AEZ	Subtropic - warm	Subtropic - cool	Tropic - warm	Tropic - cool
Arid
Semiarid
Subhumid
Humid

Source: HarvestChoice/IFPRI 2009

The United Nations Sustainable Development Goals that are applicable to this technology.

Goal 1: no poverty

By developing high-yielding, market-preferred cassava varieties, the technology helps increase farmers' incomes, reduce poverty, and create economic opportunities in rural areas.

Goal 2: zero hunger

The technology promotes food security by improving the productivity and nutritional quality of cassava, a key staple crop, including biofortified varieties rich in vitamin A.

Goal 5: gender equality

The approach can empower women, who are often key players in cassava production and processing, by providing opportunities for increased income and participation in decision-making.

Goal 8: decent work and economic growth

The technology fosters rural employment by creating business opportunities in cassava seed production, processing, and distribution, contributing to inclusive economic growth.

Goal 12: responsible production and consumption

By improving the efficiency of cassava production and processing, the technology supports sustainable agricultural practices that reduce waste and increase the value of cassava as a resource.

Goal 17: partnerships for the goals

The technology encourages collaboration among farmers, processors, researchers, and policymakers, fostering partnerships that enhance the impact of agricultural innovations.

Identify market needs
Conduct stakeholder consultations (farmers, processors, traders) to define product profiles for cassava varieties.
Breed and select varieties
Use standard breeding methods (e.g., seedling trials, clonal evaluation, multi-location on-farm trials) to develop varieties that match those profiles.
Engage with regulatory authorities
Complete required steps for official release of the new varieties (registration, naming, licensing if needed).
Promote the improved varieties
Organize demand creation trials, product launch events, and awareness campaigns (radio, social media) to drive adoption by farmers and processors.