| CIM23EAPP1-02-15 is an early maturing, white, high yielding, drought tolerant, NUE, and resistant to MLN, MSV, GLS, TLB, ear rots, and root & stalk lodging tolerance. |
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General Information |
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Target region |
Eastern Africa |
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Adaptation/Agroecological zone |
1300-1900 masl |
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Type of product |
Three-way cross |
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Year first announced |
2025 |
| Grain Yield |
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| Grain yield (OPT) |
6.69 t/ha |
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Why farmers say they like it* |
| Grain yield (On-farm) |
3.19 t/ha |
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Good yield, grain quality, drought resistance |
| Grain yield under low N stress |
2.94 t/ha |
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| Grain yield under managed drought |
1.15 t/ha |
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*Common keywords from farmer feedback (EA-ROFT 2024-1B) |
| Grain yield under MLN stress (AI) |
4.60 t/ha |
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Kernel Characteristics |
| Agronomic Characteristics |
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Kernel color |
White |
| Maturity group |
Early |
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Kernel texture |
Flint |
| 50% anthesis |
70.83 days |
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| (852 GDD) |
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Biotic Stress Performance |
| Anthesis-silking interval |
1.08 days |
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MLN (AI) (1-9)* |
4.00 |
| Ear height |
119cm |
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Grey leaf spot (GLS) (AI & nat.) (1-9)* |
2.98 |
| Plant height |
239cm |
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Turcicum leaf blight (TLB) (AI & nat.) (1-9)* |
2.83 |
| Ears per plant |
1.01 |
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Common rust (nat.) (1-9)* |
2.23 |
| Bad husk cover |
5.55% |
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Ear rots (nat.) (1-9)* |
6.64% |
| Ear aspect (1-5)** |
2.33 |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Plant aspect (1-5)** |
2.59 |
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| Root lodging |
4.71% |
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| Stalk lodging |
7.35% |
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Seed Production Characteristics |
| *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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SC female parent yield |
6.52 t/ha |
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Male parent yield |
2.87 t/ha |
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Nicking |
2.4 days |
| Further Links |
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Full Product Announcement
(including trial results summary and site information) |
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Comments |
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Product information is based on data from East Africa 2023 Stage 4 (CIM23EAPP1B-RT) and 2024 Stage 5 (EA-ROFT 2024-1B) Trials. Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
AI = artificial infestation/inoculation
FAW = fall armyworm
GDD = growing degree-days (°C)
GLS = Grey Leaf Spot
Low N = managed low nitrogen
masl = meters above sea level
MLN = maize lethal necrosis
MSV = maize streak virus
nat. = natural infestation
NUE = Nitrogen-use efficient
Opt = Optimal management
ROFT = Regional On-Farm Trials
RS = random stress
SC = single-cross
TLB = Turcicum Leaf Blight |
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