| 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. |
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General Information |
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Adaptation/Agroecological zone |
800-1800 masl |
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Region |
Southern Africa |
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Type of product |
Three-way Cross |
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Year first announced |
2018 |
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Grain Characteristics |
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Grain color |
White |
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Grain texture |
Flint |
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Protein content |
9.9% |
| Grain Yield |
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Tryptophan content |
0.068% |
| Grain yield (WLMA) |
7.7 t/ha |
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Zinc content |
18.1 mg/kg |
| Grain yield (WUMA) |
5.9 t/ha |
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Iron content |
18.8 mg/kg |
| Grain yield (WLL) |
6.2 t/ha |
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Kernel weight (100 kernels) |
40.0 g |
| Grain yield (DMA) |
6.1 t/ha |
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| Grain yield (DLL) |
3.4 t/ha |
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Biotic Stress Performance |
| Grain yield under Low N stress |
1.3 t/ha |
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Turcicum leaf blight (TLB) (1-9) |
3.4 |
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Rust (1-9) |
2.5 |
| Agronomic Characteristics |
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Maize streak virus (MSV) (1-9) |
2.0 |
| Maturity |
134 DAP |
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Grey leaf spot (GLS) (1-9) |
3.2 |
| Anthesis-silking interval |
0.5 days |
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Ear rot |
9.2% |
| Bad husk cover |
3.5% |
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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. |
| Ears per plant |
1.0 |
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| Ear height |
121 cm |
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| Plant height |
249 cm |
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Seed Production Characteristics |
| Root lodging |
21.1% |
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Female seed yield |
5.86 t/ha |
| Stalk lodging |
13.9% |
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Male seed yield |
1.6 t/ha |
| Ear aspect (1-5) |
3.0 |
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Nicking |
- 4.83 days |
| Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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Comments |
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Product information is based on data from the CIMMYT Southern Africa Maize Regional On-Station 2018 Trials.
Abbreviations:
DAP = Days After Planting
DLL = Dry Lowlands
DMA = Dry Mid-Altitudes
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl = meters above sea level
MSV = maize streak virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight
WLL = Wet Lowlands
WLMA = Wet Lower Mid-Altitudes
WUMA = Wet Upper Mid-Altitudes |
| Further Links |
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| Full Announcement |
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| Regional Trial Data Summary |
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| Regional Trial Site Information |
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| QPM Guide for Ethiopia |
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| Meta-analysis of studies on QPM |
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