CAH1817 is an intermediate-maturing maize hybrid bred for the tropical lowlands of South Asia. This high-yielding, orange-kernel maize hybrid performs well under drought and drought-plus-waterlogging conditions, and has tolerance to TLB.   General Information
  Target Region South Asia
  Adaptation/Agroecological zone Tropical Lowland
  Type of product Single-cross hybrid
  Year first announced 2020
      Kernel Characteristics
Grain Yield   Kernel color Orange 
Grain yield (opt.) 10.18 t/ha   Kernel texture Flint
Grain yield under drought stress (DT) 4.73 t/ha      
Grain yield under waterlogging stress (WL) 4.88 t/ha   Biotic Stress Performance
Grain yield random stress (RS) 3.61 t/ha   Fusarium stalk rot (FSR) (AI) (1-9) 6.3
      Turcicum leaf blight (TLB) (AI) (1-9) 4.5
Agronomic Characteristics   Banded leaf and sheath blight (BLSB) (AI) (1-9) 6.3
50% anthesis 51.7 Days   Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible.
Anthesis-silking interval  2.6 Days  
Ear height  80.7 cm      
Plant height  171.1 cm   Seed Production Characteristics
Ears per plant 1.01   Female parent yield 3.3 t/ha
Bad husk cover 5.6%   Male parent yield 3.0 t/ha
Ear aspect (1-5) 2.4   Nicking +5.0 days
Plant aspect (1-5) 2.6      
Root lodging 9.9%   Comments
Stalk lodging 6.1%   Product information is based on data from the CIMMYT South Asia 2020 Regional Trial (SAWLDT) and 2021 regional on-farm trials (ROFT 2021-1A). Actual performance will vary depending on a number of agronomic and environmental factors. 

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
RS = random stress trial
SC = single-cross
Turcicum Leaf Blight
WL = managed waterlogging trial
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics  
Further Links  
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Product Type > Single-cross hybrid
Abiotic Stress Tolerance > Drought tolerant
Abiotic Stress Tolerance > Waterlogging tolerant
Adaptation > Lowlands
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > Orange grain
Grain Texture > Flint
Maturity Group > Intermediate maturing
Region > South Asia
Year announced > 2020
For Information, Contact:
Patne Nagesh

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