Quality Protein Maize (QPM) is an affordable option for alleviating protein malnutrition and reducing animal feed costs. QPM looks and tastes the same as normal maize but contains higher levels of the essential amino acids lysine and tryptophan. Eating QPM is especially beneficial for children who survive on a maize-dominated diet.    General Information
  Adaptation/Agroecological zone 600-1500 masl
  Type of product Three-way Cross
  Year first announced 2017
  Grain Characteristics
  Grain color White
  Grain texture Semi-dent
      Oil content 6.5%
Grain Yield   Starch content 69.4%
Grain yield (OPT) 8.4 t/ha   Protein content 8.8%
Grain yield under MSV stress 5.3 t/ha   Lysene content 0.34%
Grain yield under random stress 4.8 t/ha   Tryptophane content 0.07%
Grain yield under Low N Stress 1.5 t/ha      
      Biotic Stress Performance
Agronomic Characteristics   Turcicum leaf blight (TLB)  (1-9) 2.4
Maturity 134 DAP   Rust  (1-9) 3.6
Anthesis-silking interval  0.7 days   Grey leaf spot (GLS)  (1-9) 1.8
Bad husk cover  2.0%   Ear rot  4.5%
Ears per plant 1.4   Diseases were originally scored on a 1-5 scale but have been converted here to a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible.
Ear height  120cm  
Plant height  236cm  
Ear aspect (1-5) 3.1      
Plant aspect (1-5) 3.0   Seed Production Characteristics
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Female seed yield  7.45t/ha
  Male seed yield  5.96t/ha
      Nicking -6.68 days
Further Links      
Full Announcement   Comments
Regional Trial Data Summary   Product information is based on data from the CIMMYT Southern Africa Maize Regional On-Station 2017 Trials.

DAP = Days After Planting
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl= meters above sea level
MSV = maize streak virus
OPT=Optimal management
RS=Random stress
TLB = Turcicum Leaf Blight
Regional Trial Site Information  
QPM Guide for Ethiopia  
Meta-analysis of studies on QPM  
Patent Information:

Apply for a license

Product Type > Three-way cross hybrid
Adaptation > Lowlands
Adaptation > Mid-altitudes
Biofortification > Quality Protein
Biotic Stress Tolerance > Ear rots
Biotic Stress Tolerance > Grey leaf spot (GLS)
Biotic Stress Tolerance > Rust
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Grain Texture > Semi-dent
Maturity Group > Intermediate maturing
Region > Southern Africa
Year announced > 2017
For Information, Contact:
Nicholas Davis
Program Manager

Apply for a license