Yam Improvement for Incomes and Food Security in West Africa, Phase II (YIIFSWA II)

The Yam Improvement for Incomes and Food Security in West Africa, Phase II (YIIFSWA II) project seeks to develop and prove a functional, commercial seed yam seed system in Nigeria and Ghana to benefit smallholder farmers through timely and affordable access to high quality seed yam tubers of improved varieties.

YIIFSWA-II is based on a three-pronged approach:

  1. Demonstrate the profitable business opportunity in using the Aeroponics System (AS) for basic seed yam production;
  2. Provide technical and business advisory services for private seed companies to engage in production of high quality basic seed yam using AS;
  3. Increase the supply of certified seed yam tubers from vibrant and profitable seed entrepreneurs (SE) at an affordable price to ware yam producers.

The success of the SEs is linked to a dependable and affordable supply of quality basic seed from private seed companies. Throughout-scaling high quality seed production technologies developed in YIIFSWA-I, seed companies-in partnership with national regulatory agencies-will deliver basic and certified seed yam tubers to seed entrepreneurs resulting in localized, scalable deployment centers. In tandem with production enabling capacity, private seed company-led marketing will be supported to promote the adoption of improved varieties by smallholder farmers.


The ultimate goal is to ensure that all the advances made in establishing the system in YIIFSWA-I are fully transferred to and operationalized by National Agricultural Research Institutes and private seed companies, while enhanced on-farm good agronomic packages are accessed and utilized by seed and ware yam farmers for increased productivity and income generation. The expected impact from implementation of YIIFSWA-II over the next five years will be improved livelihoods of at least 1.6 million people who depend directly on the yam value chain (including seed and ware yam producers and their family members, processors, marketers, transporters, consumers etc.).

  1. Empower smallholder ware yam producers with the seed of improved varieties for increased productivity resulting in increased income,
  2. Develop a functional, and sustainable seed system that delivers sufficient quantities of high quality seed of  improved varieties to farmers at the right time and at prices that encourage adoption,
  3. Raise the awareness of the economic impact of the yam sector for increased investment and prioritization from national, regional and international programs as well as private sector;
  4. Empower women to profitably participate in the commercial yam seed value chain within the context of the appropriate socio-cultural system.



Norbert Maroya

Project duration

Start: 08 November 2016
End: 31 December 2021

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