| CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing high-yielding, early maturing maize varieties with white grain, drought tolerance, NUE, and resistance to GLS, TLB, MSV, ear rots, and MLN, that are suitable for food use in tropical, rainfed, dry, mid-altitude areas in eastern Africa and similar agroecologies. |
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General Information |
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Adaptation/Agroecological zone |
1000 - 1600 masl |
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Type of product |
Three-way cross hybrid |
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Year first announced |
2019 |
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Grain Characteristics |
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Grain color |
White |
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Grain texture |
Semi dent |
| Grain Yield |
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| Grain yield under optimum conditions |
6.8 t/ha |
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Biotic Stress Performance |
| Grain yield under drought stress |
4.2 t/ha |
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Turcicum leaf blight (TLB) (1-9) |
4.4 |
| Grain yield under low N stress |
3.9 t/ha |
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Grey leaf spot (GLS) (1-9) |
2.6 |
| Grain yield under MLN art. inoc. |
3.8 t/ha |
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Maize streak virus (1-9) |
0.4 |
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MLN Score (under art. inoc.) (1-9) |
4.5 |
| Agronomic Characteristics |
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Ear rots |
4.3% |
| Maturity |
134 DAP |
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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. |
| Plant height |
205.1 cm |
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| Ear height |
102.3 cm |
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| Bad husk cover |
12.7% |
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Seed Production Characteristics |
| Root lodging |
1.6% |
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Nicking |
-6 day |
| Stalk lodging |
2.4% |
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| Anther-silking interval |
-0.4 Day |
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Comments |
| Ears per plant (#) |
1.1 |
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Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2019.
Abbreviations:
art. inoc. = artificial inoculation
DAP = days after planting
FAW = Fall armyworm
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha)
Low N = Managed Low Nitrogen
masl = meters above sea level
MD = Managed drought
MSV = maize streak virus
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight |
| Ear aspect (1-5) |
2.8 |
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| Plant aspect (1-5) |
2.8 |
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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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| Further Links |
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| Full Announcement |
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| Trial Data Summary |
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| Regional Trial Site Information |
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