CIMMYT's eastern Africa product pipeline 1A (EA-PP1A) focuses on developing intermediate maturing, white grain, high-yielding maize hybrids that are drought tolerant, NUE, resistant to GLS, TLB, and ear rots, and are suitable for food use in tropical rainfed dry/wet mid-altitude areas in eastern Africa.    General Information
  Adaptation/Agroecological zone 1000 - 1600 masl
  Type of product Three-way cross hybrid
  Year first announced 2017
  Grain Characteristics
  Grain color White
      Grain texture Semi flint
Grain Yield      
Grain yield under optimum conditions 9.8 t/ha   Biotic Stress Performance
Grain yield under high density 8.5 t/ha   Turcicum leaf blight (TLB) (1-9) 3.8
Grain yield under random stress 5.3 t/ha   Grey leaf spot (GLS) (1-9) 4.2
Grain yield under low N stress 3.9 t/ha   Common rust (1-9) 2.4
      Maize lethal necrosis (MLN) under art. inoc. (1-9) 4.3
Agronomic Characteristics   Ear rots 2.2%
Maturity 136 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.
Plant height 230.5 cm  
Ear height 112.7 cm      
Bad husk cover 7.2%   Seed Production Characteristics
Root lodging 2.3%   Nicking -3.0 Days
Stalk lodging 10.6%      
Anthesis-silking interval 1.2 Days   Comments
Ear aspect (1-5) 2.7   Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2016.

art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha)
Low N = Managed Low Nitrogen
masl = meters above sea level
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight
Plant aspect (1-5) 2.5  
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics  
Further Links  
Full Announcement  
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 > Mid-altitudes
Biotic Stress Tolerance > Ear rots
Biotic Stress Tolerance > Grey leaf spot (GLS)
Biotic Stress Tolerance > Rust
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Grain Texture > Semi-flint
Maturity Group > Intermediate maturing
Region > Eastern Africa
Year announced > 2017
For Information, Contact:
Nicholas Davis
Program Manager

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