Post-harvest Technologies to Maintain Grain and Seed Quality

Dieudonne Baributsa

Purdue University

Regional Knowledge Sharing Meeting

Washington, DCNovember 13 – 15, 2012

Cowpea Production and Trade

Source: Langyintuo et al., 2003

- Adapted dry climate and cash crop- Rich in protein- 23%- 3.7 MT produced yearly-Global - 70% of world production in WCA- Over 500,000 MT traded annually

Callosobruchus maculatus

Pest control methods

Purdue Improved Crop Storage (PICS)

6O2 + C6H12O6 6CO2 + 6H20

Approach to Extension/Outreach

• Village training- demonstrations• Market demonstrations• FBO and Women groups training • Cowpea traders and processors• Media- Radio, TV, posters, etc.

Village Film

Cellphon

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Target 28,778 villages Reached 30,995 villages by Dec 2011 More than 500 Market

demonstrations Over 150,000 households tested bag

Extension/Outreach achievements

Approach to PICS bags Supply Chain

Semi-wholesalers/Vendors

Manufacturers Distributors/wholesalers

Retailers/Roaming vendors

- Commercial radio messages support vendors- PICS business consultant help vendors improve sales

Achievement Supply Chain

From July 2007- Jan 20121,820,000 triple layer bagsRoughly 1000 vendors

Poor harvest- 2011 season

Quick adoption….… Profitable

Storage Margin: Mali.

Price of the PICS bag in Mali~ $2.30

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Segou Mopti Sikasso Koulikoro / Kayes

Price (US $)-Demonstration Oct- Dec 2009Price (US $)- Open Ceremonies Mar- Apr 2010

Impact- Increase their income

- Avoid health hazard - Improve food security

- Improve nutrition

Maradi- Niger, 2010

Zinder- Niger, 2010

Ejura- Ghana, 2010

Key constraints to adoption of triple layer bags

Partnership improves Availability of Post-harvest Technologies

Challenges S. Chain:•Weak legal system•Limited capital=>Strengthening social relations

CRS- Purdue in Niger, 2011

More partnership needed!

1. Does PICS bagging stop the insect problem?

2. Is grain moisture a problem?

3. Will seed stored in PICS bags germinate?

4. Are processing, cooking time, etc. affected?

5. Would PICS intervention be economical?

Research on other Crops- Underway:

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Acknowledgments: Gates Foundation and all partners

Dieudonne Baributsa, PhD Purdue University Email: baributs@purdue.eduWeb: http://www.entm.purdue.edu/PICS2Website : www.ag.purdue.edu/ipia/pics