| CZH15303 is a high-yielding, late-maturing maize hybrid with white grain that is nitrogen-use efficient, with resistance to GLS, TLB, ear rots, rust, and MSV, suitable for food use in tropical, rainfed, dry/wet mid- and upper-altitudes in southern Africa and similar agroecologies. |
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General Information |
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Adaptation/Agroecological zone |
1000 - 2000 masl |
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Region |
Southern Africa |
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Type of product |
Three-way Cross |
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Year first announced |
2018 |
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Grain Characteristics |
| Grain Yield |
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Grain color |
White |
| Grain yield (HL) |
10.3 t/ha |
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Grain texture |
Semi-dent |
| Grain yield (WLMA) |
8.2 t/ha |
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| Grain yield (WUMA) |
7.2 t/ha |
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Biotic Stress Performance |
| Grain yield (DMA) |
7.0 t/ha |
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Turcicum leaf blight (TLB) (1-9) (WLMA) |
3.6 |
| Grain yield (DLL) |
5.8 t/ha |
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Rust (1-9) (WLMA) |
2.6 |
| Grain yield under low N stress |
2.9 t/ha |
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Maize streak virus (MSV) (1-9) (WUMA) |
1.6 |
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Grey leaf spot (GLS) (1-9) (WLMA) |
2.4 |
| Agronomic Characteristics (WLMA) |
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Ear rot (WLMA) |
1.1% |
| Maturity |
138 DAP |
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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. |
| Anthesis-silking interval |
1.8 days |
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| Bad husk cover |
0.2% |
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| Ears per plant |
1.1 |
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Seed Production Characteristics |
| Ear height |
136cm |
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Female seed yield |
7.67 t/ha |
| Plant height |
253cm |
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Male seed yield |
2.29 t/ha |
| Root lodging |
11.8% |
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Nicking |
-9 Days |
| Stalk lodging |
13.6% |
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| Ear aspect (1-5) |
3.4 |
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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 Southern Africa Maize Regional On-Station 2018 Trials.
Abbreviations:
DAP = Days After Planting
DLL = Dry Lowlands
DMA = Dry Mid-Altitudes
GLS = Grey Leaf Spot
HL = Highland
Low N = Managed Low Nitrogen
masl = meters above sea level
MSV = maize streak virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight
WLL = Wet Lowlands
WLMA = Wet Lower Mid-Altitudes
WUMA = Wet Upper Mid-Altitudes |
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| Further Links |
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| Full Announcement |
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| Regional Trial Data Summary |
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| Regional Trial Site Information |
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