CAH219 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 and heat stress 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 Lowland |
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Type of product |
Single-cross hybrid |
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Year first announced |
2024 |
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Kernel Characteristics |
Grain Yield |
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Kernel color |
Yellow |
Grain yield (opt.) |
8.21 t/ha |
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Kernel texture |
Semi-Dent |
Grain yield under on-farm conditions |
5.04 ± 2.48 t/ha |
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Grain yield under Heat Stress (Mod VPD) |
5.72 t/ha |
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Biotic Stress Performance |
Grain yield under Heat Stress (Low VPD) |
8.37 t/ha |
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Fusarium stalk rot (FSR) (AI) (1-9)* |
6.3 |
Grain yield random stress (RS) |
5.21 t/ha |
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Turcicum leaf blight (TLB) (AI) (1-9)* |
4.0 |
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Macrophomina Stalk Rot (MSR) (AI) (1-9)* |
6.7 |
Agronomic Characteristics |
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Ear rots (1-9)* |
4.2 |
Maturity group |
Medium |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
50% anthesis |
55 days |
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842 GDD (°C) |
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Anthesis-silking interval |
2.1 days |
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Seed Production Characteristics |
Ear height |
111 cm |
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Female parent yield |
3.63 t/ha |
Plant height |
224 cm |
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Male parent yield |
3.51 t/ha |
Ears per plant |
0.90 |
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Nicking |
1.0 days |
Ear aspect (1-5)* |
2.0 |
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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 the CIMMYT South Asia 2021/22 Stage 4 and 2022/23 Stage 5 Trials (see "Further Links" section). Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
AI = artificial infestation/inoculation
FSR = Fusarium stalk rot
GDD = growing degree-days (°C)
MSR = Macrophomina Stalk Rot
Opt = optimal environment
RS = random stress trial
TLB = Turcicum Leaf Blight
VPD = vapor-pressure deficit |
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Further Links |
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Full Product Announcement
(including trial results summary and site information) |
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