| 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 |
11.4% |
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Tryptophan content |
0.093% |
| Grain Yield |
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Zinc content |
20.2 mg/kg |
| Grain yield (WLMA) |
8.3 t/ha |
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Iron content |
17.0 mg/kg |
| Grain yield (WUMA) |
6.2 t/ha |
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Kernel weight (100 kernels) |
43.6 g |
| Grain yield (WLL) |
5.0 t/ha |
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| Grain yield (DMA) |
4.9 t/ha |
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Biotic Stress Performance |
| Grain yield (DLL) |
2.8 t/ha |
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Turcicum leaf blight (TLB) (1-9) |
2.4 |
| Grain yield under Low N stress |
1.6 t/ha |
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Rust (1-9) |
3.4 |
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Maize streak virus (MSV) (1-9) |
4.2 |
| Agronomic Characteristics |
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Grey leaf spot (GLS) (1-9) |
6.0 |
| Maturity |
135 DAP |
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Ear rot |
2.8% |
| Anthesis-silking interval |
0.8 days |
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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. |
| Bad husk cover |
3.7% |
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| Ears per plant |
1.0 |
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| Ear height |
128 cm |
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Seed Production Characteristics |
| Plant height |
261 cm |
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Female seed yield |
5.36 t/ha |
| Root lodging |
8.1% |
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Male seed yield |
1.26 t/ha |
| Stalk lodging |
7.9% |
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Nicking |
- 3.07 days |
| Ear aspect (1-5) |
2.9 |
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| 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 |
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| 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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