CKHMLN170241

CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing high-yielding, early maturing maize varieties with white grain, drought tolerance, NUE, and resistance to GLS, TLB, MSV, ear rots, and MLN, 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 anounced 2019         Grain Characteristics   Grain color White   Grain texture Dent           Grain Yield   Biotic Stress Performance Grain yield under optimum conditions 6.7 t/ha   Turcicum leaf blight (TLB) (1-9) 4.6 Grain yield under drought stress 3.9 t/ha   Grey leaf spot (GLS) (1-9) 2.4 Grain yield under low N stress 4.2 t/ha   Maize streak virus (MSV) (1-9) 0.6 Grain yield under MLN artificial Inoculation 4.2 t/ha   Maize Lethal Necrosis (MLN) (art. inoc.)  (1-9) 4.5       Ear rots 4.5% Agronomic Characteristics   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. Maturity 120 DAP   Plant height 210.9 cm       Ear height 101.2 cm   Seed Production Characteristics Bad husk cover 19.7%   Nicking - 5 days Root loging 1.4%       Stalk lodging 2.1%   Comments Anther-silking interval 0.6 days   Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2019.
 
Abbreviations:
art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl = meters above sea level
MD = Managed drought
MLN=Maize lethal necrosis
MSV = maize streak virus
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight Ears per plant (#) 1.1   Ear aspect (1-5) 2.9   Plant aspect (1-5) 2.6   Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics           Further Links   Full Announcement   Trial Data Summary   Regional Trial Site Information