| CIMMYT's southern Africa product profile 1A (SAPP-1A) primarily focuses on developing high-yielding, intermediate-maturing maize hybrids with white grain, drought tolerance that are NUE and resistant to GLS, TLB, ear rots, and MSV, suitable for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies. |
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General Information |
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Target region |
Southern Africa |
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Adaptation/Agroecological zone |
400-1800 masl |
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Type of product |
Three-way cross hybrid |
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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 |
Semi-flint |
| Grain Yield |
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| Grain yield ME-A |
6.3 t/ha |
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Biotic Stress Performance (ME-A) |
| Grain yield ME-B |
8.3 t/ha |
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Turcicum leaf blight (TLB) (1-9)* |
3.2 |
| Grain yield ME-C |
7.6 t/ha |
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Grey leaf spot (GLS) (1-9)* |
3.2 |
| Grain yield ME-D |
5.4 t/ha |
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Common rust (P. sorg.) (1-9)* |
2.2 |
| Grain yield ME-E |
5.4 t/ha |
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Maize Streak Virus (MSV) (1-9)* |
1.0 |
| Grain yield ME-F |
9.0 t/ha |
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Ear rots |
7.1% |
| Grian yield under low N stress |
2.8 t/ha |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
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| Agronomic Characteristics (ME-A) |
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| Maturity |
Intermediate |
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Seed Production Characteristics |
| Days to 50% anthesis |
67.2 days |
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Nicking |
-3 days |
| Anthesis-silking interval |
1.4 days |
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Feh:MphR |
0.45 |
| Plant height |
222.3 cm |
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| Ear height |
104.4 cm |
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Comments |
| Ears per plant |
1.1 |
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Product information is based on data from 2018 Southern Africa Maize Regional Trials conducted by CIMMYT. Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
Feh:MphR = Female ear height to Male plant height ratio
GLS = Grey Leaf Spot
masl = meters above sea level
ME-A = Maize mega-environment A (wet upper mid-altitudes)
ME-B = Maize mega-environment B (wet lower mid-altitudes)
ME-C = Maize mega-environment C (dry mid-altitudes)
ME-D = Maize mega-environment D (wet lowlands)
ME-E = Maize mega-environment E (dry lowlands)
ME-F = Maize mega-environment F (highlands)
MSV= Maize Streak Virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight (E. turc.) |
| Bad husk cover |
3.5% |
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| Ear aspect (1-5)* |
2.9 |
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| Root lodging |
14.1% |
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| Stalk lodging |
1.1% |
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| Senescence (1-10) |
3.0 |
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| *Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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| Further Links |
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| 1. Full Announcement and trial results |
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| 2. Maize Mega-Environments (map) |
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