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CIM19SAPP1A-24

CIMMYT's southern Africa product profile 1A (SAPP-1A) primarily focuses on developing high-yielding, intermediate-maturing maize hybrids with white grain, drought tolerance that are NUE and resistant to GLS, TLB, ear rots, and MSV, suitable for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies.    General Information
  Adaptation/Agroecological zone 400-1800 masl
  Target region Southern Africa
  Type of product Three-way cross hybrid
  Year first announced 2021
     
  Grain Characteristics
  Grain color White
      Grain texture Semi dent
Grain Yield      
Grain yield under optimum conditions 8.28 t/ha   Biotic Stress Performance
Grain yield under managed drought 2.74 t/ha   Turcicum leaf blight (TLB) (1-9) 2.5
Grain yield under low nitrogen 2.18 t/ha   Grey leaf spot (GLS) (1-9) 3.0
      Maize Streak Virus (MSV) (1-9) 1.0
Agronomic Characteristics   Ear rots 5.9%
Maturity 130 DAP   Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible.
Plant height 244.6 cm  
Ear height 119.6 cm      
Ears per plant 1.0   Seed Production Characteristics
Bad husk cover 3.8%   Single-cross female parent yield 5.50 t/ha
Anthesis-silking interval 1.5 Days   Male parent yield 3.22 t/ha
Ear aspect (1-5) 2.4   Nicking -5 days
Root lodging 9.0%      
Stalk lodging 9.4%   Comments  
Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Product information is based on data from various trials conducted by CIMMYT in southern Africa in 2019.

Abbreviations:
DAP = days after planting
GLS = Grey Leaf Spot
MSV= Maize Streak Virus
NUE = Nitrogen Use Efficient
masl = meters above sea level
TLB = Turcicum Leaf Blight
 
     
Further Links  
Full Announcement  
Trial Data Summary  
     
     
     
Patent Information:

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Tags
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 > Semi-dent
Maturity Group > Intermediate maturing
Product Type > Three-way cross hybrid
Region > Southern Africa
Year announced > 2021
For Information, Contact:
Nicholas Davis
Program Manager
CIMMYT
n.davis@cgiar.org

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