| CIM23EAPP1-01-07 is an intermediate-maturing, high-yielding maize hybrid with white grain, drought tolerance, nitrogen-use efficiency, and resistance to GLS, TLB, ear rots, and MSV. It is particularly notable for being MLN-tolerant and having demonstrated a 12% yield advantage over the best commercial check in on-farm trials. |
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General Information |
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Target region |
Eastern Africa |
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Adaptation/Agroecological zone |
600-1500 masl |
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Type of product |
Three-way cross |
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Year first announced |
2025 |
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Why farmers say they like it* |
| Grain Yield |
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Good yield, early maturity, drought and disease resistance |
| Grain yield (OPT) |
7.34 t/ha |
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| Grain yield (On-farm) |
4.26 t/ha |
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*Common keywords from farmer feedback in the 2024 Stage 5 (EA-ROFT 2024-1A) Trials. |
| Grain yield under low N stress |
2.59 t/ha |
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| Grain yield under managed drought |
2.04 t/ha |
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| Grain yield under MLN stress (AI) |
6.11 t/ha |
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Kernel Characteristics |
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Kernel color |
White |
| Agronomic Characteristics |
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Kernel texture |
Semi dent |
| Maturity group |
Intermediate |
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| 50% anthesis |
77.4 days |
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Biotic Stress Performance |
| (904 GDD) |
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MLN (AI) (1-9)* |
3.09 |
| Anthesis-silking interval |
0.82 days |
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Grey leaf spot (GLS) (AI & nat.) (1-9)* |
2.10 |
| Ear height |
125cm |
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Turcicum leaf blight (TLB) (AI & nat.) (1-9)* |
2.52 |
| Plant height |
243cm |
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Common rust (nat.) (1-9)* |
2.12 |
| Ears per plant |
1.00 |
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Ear rots (nat.) (1-9)* |
7.17% |
| Bad husk cover |
11.3% |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Ear aspect (1-5)* |
2.75 |
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| Plant aspect (1-5)* |
2.50 |
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| Root lodging |
5.72% |
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Seed Production Characteristics |
| Stalk lodging |
4.32% |
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SC female parent yield |
7.11 t/ha |
| *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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Male parent yield |
1.62 t/ha |
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Nicking |
2.2 days |
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| Further Links |
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Comments |
Full Product Announcement
(including trial results summary and site information) |
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Product information is based on data from East Africa 2023 Stage 4 (CIM23EAPP1A-RT) and 2024 Stage 5 (EA-ROFT 2024-1A) 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
RS = random stress
SC = single-cross
TLB = Turcicum Leaf Blight |
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