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.    General Information
  Adaptation/Agroecological zone 1000 - 2000 masl
  Region Southern Africa
  Type of product Three-way Cross
  Year first announced 2018
      Grain Characteristics
Grain Yield   Grain color White
Grain yield (HL) 10.3 t/ha   Grain texture Semi-dent
Grain yield (WLMA) 8.2 t/ha      
Grain yield (WUMA) 7.2 t/ha   Biotic Stress Performance
Grain yield (DMA) 7.0 t/ha   Turcicum leaf blight (TLB) (1-9) (WLMA) 3.6
Grain yield (DLL) 5.8 t/ha   Rust (1-9) (WLMA) 2.6
Grain yield under low N stress 2.9 t/ha   Maize streak virus (MSV) (1-9) (WUMA) 1.6
      Grey leaf spot (GLS) (1-9) (WLMA) 2.4
Agronomic Characteristics (WLMA)   Ear rot (WLMA) 1.1%
Maturity 138 DAP   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  
Bad husk cover  0.2%      
Ears per plant 1.1   Seed Production Characteristics
Ear height  136cm   Female seed yield  7.67 t/ha
Plant height  253cm   Male seed yield  2.29 t/ha
Root lodging  11.8%   Nicking -9 Days
Stalk lodging  13.6%      
Ear aspect (1-5) 3.4   Comments
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Product information is based on data from the CIMMYT Southern Africa Maize Regional On-Station 2018 Trials.

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
Further Links  
Full Announcement  
Regional Trial Data Summary  
Regional Trial Site Information  
Patent Information:

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Product Type > Three-way cross hybrid
Abiotic Stress Tolerance > Nitrogen-use efficient (NUE)
Adaptation > Highlands
Adaptation > Mid-altitudes
Biotic Stress Tolerance > Ear rots
Biotic Stress Tolerance > Grey leaf spot (GLS)
Biotic Stress Tolerance > Maize streak virus (MSV)
Biotic Stress Tolerance > Rust
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Grain Texture > Semi-dent
Maturity Group > Late maturing
Region > Southern Africa
Year announced > 2018
For Information, Contact:
Nicholas Davis
Program Manager

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