United States Agency for International Developmen

Gasura, E.

Melele, D.

Ndoro, O.

Setimela, Peter

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This poster is licensed for use under the Creative Commons Attribution 4.0 International Licence. January 2017We thank farmers and local partners in Africa RISING sites for their contributions to this research. We also acknowledge the support of all donors which globally support the work of the CGIAR centers and their partners through their contributions to the CGIAR systemQuality Protein Maize - bridging the malnutrition gap Peter Setimela 1, Edmore  Gasura2 , Davies Melele3, and Oswell Ndoro1 1CIMMYT, P.O. Box MP 163, Harare, Zimbabwe2Department of Crop Science, University of Zimbabwe, P.O. Box MP 167, Mt Pleasant, Harare, Zimbabwe3ZARI, Msekera Research Station, Chipata, ZambiaKey messages• Maize is the major staple food in Zambia with humanconsumption averaging 117 kg capita-1 year-1• Maize inherently poor in two essential amino acids: tryptophanand lysine• Opaque-2 gene conferring high-lysine and tryptophan offers thehope to bridge the protein• Only one open pollinated variety QPM Obatanpa was released in2004Key results• Ten elite QPM varieties were selected from on-station trials basedon high grain yield and stability, and were found to be comparableto the best commercial checks• The yield genetic gains ranged from 11-40% across the two years,suggesting effective genetic gains in QPM breeding.• The genotype plus genotype x environment interaction (GGE)comparison biplot based on two seasons of testing identified QPMhybrids CZH132044Q, CZH142238Q and CZH142236Q to be stableand high yielding.Objectives and approachThe objective of this study was to evaluate a new generation of QPMvarieties for grain yield and stability based on the site regression(SREG) model.Significance and scaling potential• Zambian smallholders can benefit substantially from QPM becauseof the high rates of daily maize intake coupled with low intake ofbalanced protein foods containing essential amino acids.• Seed companies have started to multiple breeders and foundationseed for scaling up certified seed production.• The new QPM varieties as competitive as normal maize varieties on-station and on-farmFigure 2.Best QPM genotypes mean and stabilityFigure 1. Evaluation  QPM varietiesFigure 3. Sale of   QPM by smallholder  farmers on the road side

Quality protein maize—Bridging the malnutrition gap

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Quality protein maize—Bridging the malnutrition gap

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