CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing high-yielding, early maturing maize varieties with white grain, drought tolerance, NUE, and resistance to GLS, TLB, MSV, ear rots, and MLN, that are suitable for food use in tropical, rainfed, dry, mid-altitude areas in eastern Africa and similar agroecologies.    General Information
  Adaptation/Agroecological zone 1000 - 1600 masl
  Type of product Three-way cross hybrid
  Year first anounced 2019
  Grain Characteristics
  Grain color White
  Grain texture Dent
Grain Yield   Biotic Stress Performance
Grain yield under optimum conditions 6.7 t/ha   Turcicum leaf blight (TLB) (1-9) 4.6
Grain yield under drought stress 3.9 t/ha   Grey leaf spot (GLS) (1-9) 2.4
Grain yield under low N stress 4.2 t/ha   Maize streak virus (MSV) (1-9) 0.6
Grain yield under MLN artificial Inoculation 4.2 t/ha   Maize Lethal Necrosis (MLN) (art. inoc.)  (1-9) 4.5
      Ear rots 4.5%
Agronomic Characteristics   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.
Maturity 120 DAP  
Plant height 210.9 cm      
Ear height 101.2 cm   Seed Production Characteristics
Bad husk cover 19.7%   Nicking - 5 days
Root loging 1.4%      
Stalk lodging 2.1%   Comments
Anther-silking interval 0.6 days   Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2019.
art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl = meters above sea level
MD = Managed drought
MLN=Maize lethal necrosis
MSV = maize streak virus
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight
Ears per plant (#) 1.1  
Ear aspect (1-5) 2.9  
Plant aspect (1-5) 2.6  
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:

Apply for a license

Abiotic Stress Tolerance > Drought tolerant
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 > Maize Lethal Necrosis (MLN)
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Maturity Group > Intermediate maturing
Grain Texture > Dent
Product Type > Three-way cross hybrid
Region > Eastern Africa
Year announced > 2019
For Information, Contact:
Nicholas Davis
Program Manager

Apply for a license