Update on West Africa:Banana and Plantain Program


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Classical breeding,Pre-breeding and Agronomy on banana and plantain

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Update on West Africa:Banana and Plantain Program

  1. 1. Update on West Africa Banana and Plantain Program 1. Classical breeding 3. Agronomy 2. Pre-breeding -Old and new germplasm -Program restructuring -Variety registration -Chromosome doubling -Hormone treatment -Production map -Yield prediction -Density testing -Seedling production in vitro culture Molecular genetics Cytogenetics
  2. 2. Pre- and Classical Breeding <ul><li>Classical breeding </li></ul><ul><ul><li>Main targets: resistance to diseases (e.g. BS) </li></ul></ul><ul><ul><ul><li>-Improved plantain (PITA) series </li></ul></ul></ul><ul><ul><ul><li>-Improved bananas (BITA) series </li></ul></ul></ul><ul><ul><ul><li>-Promotion of PITA and BITA series ongoing </li></ul></ul></ul><ul><ul><ul><li>-Registration in process for Nigeria (IITA-NIHORT) </li></ul></ul></ul>2. Utilization of small number of local varieties to initiate classical breeding (1) - Mainly driven by overcoming fertility barriers 3. PITA and BITA have good potentials -High yield -Tolerance to BS -Nutrient contents 4. Local landraces continue to be preferred -Susceptible to pests and diseases -Poor root system -Very low yield
  3. 3. Germplasm for Breeding -Landraces, hybrids and wild species -PITA and BITA series put back in breeding scheme -New materials being acquired from other breeding programs -Creation of new breeding blocks
  4. 4. Pre-breeding: a step before breeding <ul><li>Direct breeding using the preferred landraces (intractable to breeding so far) </li></ul><ul><ul><ul><ul><li>-Creation of double haploids (3n segregates as 2n + n) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>-Ovule culture + chromosome doubling </li></ul></ul></ul></ul><ul><ul><ul><ul><li>-Direct chromosome doubling of triploid followed by crosses </li></ul></ul></ul></ul><ul><ul><ul><ul><li>-Chromosome doubling of key diploid hybrids </li></ul></ul></ul></ul><ul><ul><ul><ul><li>-Direct utilization of preferred triploids by improving fertility before crosses </li></ul></ul></ul></ul><ul><ul><ul><ul><li>-Treatment with growth hormones </li></ul></ul></ul></ul>Chromosome doubling Ovule culture
  5. 5. Country specific aspects 1. Nigeria -Moved away from Onne Station (South East Nigeria) -Activities concentrated in Ibadan -National partners and networks maintained -Variety registration with NIHORT. Variety description catalog available -Two projects ongoing -One national project developed (IITA, NIHORT, NAGRAB, NABDA) 2. Ivory Coast -Collaboration with national partners [CNRA and Universities] -One breeding block created. A Field Technician hired. -6 project ideas in development (including one on banana-plantain) -Ivory Coast chosen by ECOWAS and the World Bank as the center of specialization for plantain with spill over in other ECOWAS countries [Second phase of the West Africa Agricultural Productivity Program (WAAPP) ] 3. Ghana -The Crop Research Institute (CRI) has designated A responsible for Plantain (Michael Kwabena Osei). -In the course of developing a national project. 4. Liberia: In touch with Liberian Colleagues. Problem is baseline data
  6. 6. Nigeria -Pre-breeding operations -Introduction, in vitro regeneration and sanitation of new germplasm -Molecular laboratory aspects -Agronomy Ghana -Germplasm testing -Agronomy Pre-breeding support, seed and seedling transfer Transfer of breeding Materials for testing COUNTRY SPECIFIC DELIVERY HUBS IITA banana and Plantain Program and WCA overview Transfer of breeding Materials for conservation and distribution Tanzania -Breeding for ESA -East African Highland bananas -Plantain -Agronomy Ivory Coast -Breeding for WCA -Plantain -Other cooking bananas -Molecular laboratory aspects -Agronomy Cameroon -Germplasm testing -Post-harvest operations -Agronomy