| CIMMYT's eastern Africa product pipeline 1A (EA-PP1A) focuses on developing intermediate maturing, white grain, high-yielding maize hybrids that are drought tolerant, NUE, resistant to GLS, TLB, and ear rots, 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 |
2017 |
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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 |
9.8 t/ha |
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| Grain yield under high density |
9.0 t/ha |
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Biotic Stress Performance |
| Grain yield under random stress |
5.4 t/ha |
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Turcicum leaf blight (TLB) (1-9) |
4.0 |
| Grain yield under low N stress |
3.9 t/ha |
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Grey leaf spot (GLS) (1-9) |
2.8 |
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Common rust (1-9) |
3.4 |
| Agronomic Characteristics |
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Maize lethal necrosis (MLN) under art. inoc. (1-9) |
5.4 |
| Maturity |
140 DAP |
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Ear rots |
3.2% |
| Plant height |
239.2 cm |
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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. |
| Ear height |
131.0 cm |
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| Bad husk cover |
3.3% |
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| Root lodging |
2.2% |
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Seed Production Characteristics |
| Stalk lodging |
9.0% |
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Nicking |
-4.0 Days |
| Anthesis-silking interval |
1.8 Days |
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| Ear aspect (1-5) |
2.9 |
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Comments |
| Plant aspect (1-5) |
2.5 |
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Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2016.
Abbreviations:
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
MSV = Maize streak virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight |
| 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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