| CAH203 is an intermediate-maturing maize hybrid bred for the tropical lowlands of South Asia. This high-yielding, yellow-kernel maize hybrid performs well under drought conditions, and has tolerance to TLB and ear rots. |
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General Information |
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Target Region |
South Asia |
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Adaptation/Agroecological zone |
Tropical lowlands
(up to 1300 masl) |
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Type of product |
Single-cross hybrid |
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Year first announced |
2023 |
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| Grain Yield |
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Kernel Characteristics |
| Grain yield (opt.) |
8.26 t/ha |
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Kernel color |
Yellow |
| Grain yield under on-farm conditions |
5.84 ± 0.60 t/ha |
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Kernel texture |
Semi-dent |
| Grain yield under drought stress (DT) |
4.36 t/ha |
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| Grain yield random stress (RS) |
4.54 t/ha |
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Biotic Stress Performance |
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Fusarium stalk rot (FSR) (AI) (1-9)* |
7.4 |
| Agronomic Characteristics |
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Turcicum leaf blight (TLB) (AI) (1-9)* |
5.4 |
| Maturity group |
Intermediate |
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Ear rots (1-9)* |
5.0 |
| 50% anthesis |
54.5 days |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| 877.1 GDD |
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| Anthesis-silking interval |
1.5 days |
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| Ear height |
62.5 cm |
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Seed Production Characteristics |
| Plant height |
163 cm |
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Female parent yield |
4.25 t/ha |
| Ear position (ratio) |
0.38 |
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Male parent yield |
4.28 t/ha |
| Ears per plant |
1.15 |
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Nicking |
0 days |
| Ear aspect (1-5)* |
1.5 |
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| Plant aspect (1-5)* |
1.5 |
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Comments |
| *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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Product information is based on data from CIMMYT's SADT 2020/21 Stage 4 Regional On-Station Trials and 2021/22 Stage 5 Regional On-Farm Trials. Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
AI = artificial infestation/inoculation
BLSB = Banded leaf and sheath blight
DT = Managed drought trial
FSR = Fusarium stalk rot
GDD = growing degree-days (°C)
Opt = optimal environment and management
RS = random stress trial
TLB = Turcicum Leaf Blight
WL = managed waterlogging stress |
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| Further Links |
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Full Product Announcement
(including trial results summary and site information) |
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