Institute of Plant Breeding

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Institute of Plant Breeding
Niamey, Niger
Genetic variation under low phosphorus conditions
in West African pearl millet inbred lines
Seedling and mature plant phosphorus uptake and
utilization efficiency
Dorcus C. Gemenet, C. Tom Hash, Ousmane Sy, Roger
G. Zangre, Moussa D Sanogo, Willmar L. Leiser and
Bettina I.G. Haussmann
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Introduction

• Phosphate rock-the largest global source
• of phosphorus fertilizers
• Diminishing phosphate rock resources
• Increasing phosphorus fertilizer prices
• Unaffordable to resource-poor farmers
• Host-plant tolerance to low soil P
• Efficient use of scarce resource
• Affordable option RPF

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Questions
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Methodology
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Results
Performance under -P and P of traits under
field conditions
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Conclusions
?    Seedling and mature plants varied
significantly for both P efficiency
traits ?    P utilization increased under low P
P uptake was more important for grain
production ?    The right balance of both traits
is needed for sustainable performance
under low P ?    Breeding for low-P tolerance
should be integrated with system- oriented
research
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Acknowledgements

• For finacial support
• The German Federal Ministry for Economic
  Cooperation and
• Development (BMZ)
• Foundation Fiat Panis in Germany
• The McKnight Foundation
• The Food Security Centre-University of Hohenheim
• For conducting trials
• ICRISAT Niger,
• INERA, Burkina Faso
• IER, Mali
• ISRA, Senegal
• University of Hohenheim

Thank you, the audience