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CKDHH170121

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, ear rots, and MSV, 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 2019
     
  Grain Characteristics
      Grain color White
Grain Yield   Grain texture Dent
Grain yield under optimum conditions 8.6 t/ha      
Grain yield under high density (80,000 plants) 9.3 t/ha   Biotic Stress Performance
Grain yield under drought stress 3.8 t/ha   Turcicum leaf blight (TLB) (1-9) 3.2
Grain yield under low N stress 4.5 t/ha   Grey leaf spot (GLS) (1-9) 1.8
Grain yield under striga conditions 3.1 t/ha   Maize streak virus (MSV) (1-9) 4.6
Grain yield under MLN artificial Inoculation 1.3 t/ha   FAW leaf damage  (1-9) 5.8
      FAW cob damage  (1-9) 8.8
Agronomic Characteristics   Grain weight loss (MW) 0.2%
Maturity 150 DAP   Grain weight loss (LGB) 0.2%
Plant height 248.1 cm   Ear rots 4.2%
Ear height 132.5 cm   Diseases are scored on 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible
Bad husk cover 4.2%  
Root lodging 1.8%      
Stalk lodging 3.9%   Seed Production Characteristics
Anther-silking interval -0.1 days   Female seed yield  7.4 t/ha
Ears per plant (#) 1.1   Male seed yield  4.9 t/ha
Ear aspect (1-5) 2.3   Nicking -7 Days
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 2018.

Abbreviations:
DAP = days after planting
FAW = Fall armyworm
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha) 
LGB= Larger Grain Borer
Low N = Managed Low Nitrogen
masl = meters above sea level
MSV = maize streak virus
MW= Maize Weevil
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
Region > Eastern Africa
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 streak virus (MSV)
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Grain Texture > Dent
Maturity Group > Intermediate maturing
Year announced > 2019
For Information, Contact:
Nicholas Davis
Program Manager
CIMMYT
n.davis@cgiar.org

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