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Breeding for Vitamin A Cassava: Current Status
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Breeding for Vitamin A Cassava: Current Status

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Nigeria NRCP results from Ibadan 2009/10 – with NRCRI,Nigeria Harvest Plus Product Development and Delivery Plan,Yellow Cassava Distribution from Nigeria.

Nigeria NRCP results from Ibadan 2009/10 – with NRCRI,Nigeria Harvest Plus Product Development and Delivery Plan,Yellow Cassava Distribution from Nigeria.

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  • 1. Breeding for Vitamin ACassava: Current Status Deep yellow Yellow Cream White Peter Kulakow, Busie Maziya-Dixon, Alfred Dixon, Paul Ilona, Norbert Maroya, Melaku Gedil, Nzola Mahungu, Chiedozie Egesi International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 2. Nigeria NRCP results from Ibadan 2009/10 – with NRCRI Mean CMD Fresh Dry Dry Total beta-Clone severity yield yield matter carotene carotene TC+ BC+ μg/g μg/g score t/ha t/ha % μg/g frwt μg/g frwt frwt frwt01/1368 2.9 21.4 7.0 28.0 6.1 4.4 8.0 5.601/1371 1.2 22.1 7.0 26.5 8.1 5.9 7.8 6.201/1412 1.0 29.6 9.4 29.0 6.4 4.3 7.5 5.530572 2.8 21.0 8.7 38.0 0.6 0.4 1.0 0.4+ other 8 NCRP locations except 7 for 01/1368 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 3. 01/1371 01/1368 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 4. Top five genotypes from UYT Yellow Root 6 in five locations during 2009/10 – potential release in 2013 Mean CMD Fresh Dry Dry Total Severity yield yield matter caroteneGenotype t/ha t/ha % ug/g frwt07/0593 1.1 11.8 3.1 24.6 11.406/1635 1.2 10.0 2.4 22.3 9.107/0824 3.3 10.1 1.8 18.4 9.001/1368 (check) 2.7 16.5 3.9 22.4 8.207/0553 3.0 15.2 3.2 20.6 7.807/0539 1.1 12.0 2.5 19.0 7.701/1371 (check) 1.7 13.1 3.0 19.4 6.0Trial Mean 2.0 10.3 2.2 19.9 7.2 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 5. Promising Clone 07/0593• Highest in TC over 5 locations (11.4 ug/g frwt• CMD Resistant• Poundable but CNP may be too high for boiling• Relatively high dry matter• Good plant architecture• Above average yield International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 6. Nigeria Harvest Plus Product Development and Delivery Plan• Rapid multiplication scheme – assumes conversion ratio of 1:20 in one year (2 cycles of stem production per year)• Goal to establish 5 hectares of breeders’ stems in December 2010 (3 ha at IITA and 2 ha at NRCRI)• Produce enough stems to establish 50 hectares of foundation stems by July 2011 and 500 hectares of certified stems by May 2012• Target to impact 25,000 households farming of 0.1 ha by 2013 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 7. Nigeria Harvest Plus Product Development and Delivery Plan• IITA primary delivery output is to provide the varieties and breeders seed in collaboration with NRCRI.• Harvest Plus (Paul Ilona country crop manager) with technical backstopping of IITA will coordinate production of foundation seed and certified seed for 25,000 households.• Primary target populations for impact are pregnant and lactating women and children in the first 1000 days. – Post-harvest processing and products important – 80% of cassava in Nigeria consumed as gari• Four target states in Nigeria – Imo in Southeast – Edo in South-South – Benue in North-Central – Oyo in South-West. International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 8. Intermediate Vitamin A Varieties in DRC in DRC International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  • 9. Yellow Cassava Distribution from Nigeria• Priority to distribute elite yellow cassava genotypes – DRC (target country for Harvest Plus) – Malawi (SARRNET) – request pending since early 2010 – Kenya (INSTAPA) – Tanzania (especially for CBSD screening) – Cote d’Ivoire (Nestle) – Ghana – Liberia – Uganda• Germplasm exchange issues – limited distribution in 2010 – tissue culture status, – time lines for delivery – disease indexing – import permits – Budgeting and cost recovery for tissue culture maintenance and germplasm distribution International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org