| CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing intermediate maturing, white grain, high-yielding maize hybrids that are drought tolerant, NUE, resistant to MLN, GLS, TLB, ear rots, and MSV, and are suitable for food use in tropical rainfed dry/wet mid-altitude areas in eastern Africa. |
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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 |
2021 |
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Grain Characteristics |
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Grain color |
White |
| Grain Yield |
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Grain texture |
Semi-dent |
| Grain yield under optimum conditions |
7.3 t/ha |
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| Grain yield on-farm |
5.9 t/ha |
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Biotic Stress Performance |
| Grain yield under drought stress |
3.8 t/ha |
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Turcicum leaf blight (TLB) (1-9) |
4.8 |
| Grain yield under FAW (art. inf.; no-choice trial) |
6.8 t/ha |
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Grey leaf spot (GLS) (1-9) |
2.2 |
| Grain yield under HD |
5.3 t/ha |
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Maize Lethal Necrosis (MLN) under art. inoc. (1-9) |
3.1 |
| Grain yield under low N stress |
2.6 t/ha |
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Ear Rots |
1.8% |
| Grain yield under MLN artificial Inoculation |
6.0 t/ha |
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Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Grain yield under random stress |
3.2 t/ha |
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| Grain yield under striga conditions |
4.1 t/ha |
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Seed Production Characteristics |
| Agronomic Characteristics |
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Female seed yield |
8.4 t/ha |
| Maturity |
129 DAP |
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Male seed yield |
2.3 t/ha |
| Plant height |
222 cm |
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Nicking |
1.0 Days |
| Ear height |
109 cm |
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| Bad husk cover |
8.1% |
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Comments |
| Root lodging |
7.2% |
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Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2019 and 2020.
Abbreviations:
art. inf. = artificial infestation
art. inoc. = artificial inoculation
DAP = days after planting
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 |
| Stalk lodging |
4.9% |
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| Anthesis-silking interval |
0.3 Days |
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| Plant aspect (1-5) |
2.4 |
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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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