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CKDHH170029

CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing high-yielding, early maturing maize varieties with white grain, drought tolerance, and resistance to GLS, TLB, and ear rots, 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 announced 2018
     
  Grain Characteristics
      Grain color White
Grain Yield   Grain texture Semi dent
Grain yield under optimum conditions 7.1 t/ha      
Grain yield under random stress 3.5 t/ha   Biotic Stress Performance
Grain yield under drought stress 2.0 t/ha   Turcicum leaf blight (TLB) (1-9) 3.4
      Grey leaf spot (GLS) (1-9) 2.4
Agronomic Characteristics   Common rust (1-9) 2.2
Maturity 134 DAP   Ear Rots 12.1%
Plant height 254.4 cm   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.
Bad husk cover 5.6%  
Root lodging 9.6%  
Stalk lodging 9.1%      
Anther-silking interval 1.3 Days   Seed Production Characteristics
Ear aspect (1-5) 2.0   Nicking -5 Days
Plant aspect (1-5) 2.5      
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Comments
  Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2017.

Abbreviations:
DAP = days after planting
FAW = Fall armyworm
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl = meters above sea level
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight
     
Further Links  
Full Announcement  
Trial Data Summary  
Regional Trial Site Information  
     
     
Patent Information:

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Tags
Product Type > Three-way cross hybrid
Abiotic Stress Tolerance > Drought tolerant
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-dent
Maturity Group > Early maturing
Region > Eastern Africa
Year announced > 2018
For Information, Contact:
Nicholas Davis
Program Manager
CIMMYT
n.davis@cgiar.org

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