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CKH160049

CIMMYT's eastern Africa product pipeline 1A (EA-PP1A) focuses on developing intermediate maturing, white grain, high-yielding maize hybrids that are drought tolerant, resistant to GLS, TLB, MSV, 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 Yield   Grain texture Semi dent
Grain yield under optimum conditions 7.29 t/ha      
Grain yield under random stress 3.24 t/ha   Biotic Stress Performance
      Turcicum leaf blight (TLB) (1-9) 2.8
Agronomic Characteristics   Grey leaf spot (GLS) (1-9) 2.2
Maturity 137 DAP   Maize streak virus (MSV) (1-9) 1.8
Plant height 215.8 cm   Common rust (1-9) 2.6
Ear height 93.5 cm   Maize lethal necrosis (MLN) under art. inoc. (1-9) 6.0
Bad husk cover 1.8%   Stemborer (1-9) 4.0
Root lodging 2.2%   Ear rots 2.3%
Stalk lodging 1.3%   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.
Anthesis-silking interval 0.7 Days  
Ear aspect (1-5) 2.6      
Plant aspect (1-5) 2.4   Seed Production Characteristics
Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Nicking 0 Days
     
      Comments
Further Links   Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2016.

Abbreviations:
art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
masl = meters above sea level
TLB = Turcicum Leaf Blight
Full Announcement  
Trial Data Summary  
Regional Trial Site Information  
     
     
     
     
Patent Information:

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Tags
Product Type > Three-way cross hybrid
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 > Rust
Biotic Stress Tolerance > Turcicum leaf blight (TLB)
Grain Color > White grain
Grain Texture > Semi-dent
Maturity Group > Intermediate maturing
Region > Eastern Africa
Year announced > 2017
Seed producibility traits > Good nicking
For Information, Contact:
Nicholas Davis
Program Manager
CIMMYT
n.davis@cgiar.org

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