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