CKHMLN170374

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 announced 2019         Grain Characteristics   Grain color White       Grain texture Semi dent Grain Yield       Grain yield under optimum conditions 6.8 t/ha   Biotic Stress Performance Grain yield under drought stress 4.2 t/ha   Turcicum leaf blight (TLB) (1-9) 4.4 Grain yield under low N stress 3.9 t/ha   Grey leaf spot (GLS) (1-9) 2.6 Grain yield under MLN art. inoc. 3.8 t/ha   Maize streak virus (1-9) 0.4       MLN Score (under art. inoc.)  (1-9) 4.5 Agronomic Characteristics   Ear rots 4.3% Maturity 134 DAP   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. Plant height 205.1 cm   Ear height 102.3 cm       Bad husk cover 12.7%   Seed Production Characteristics Root lodging 1.6%   Nicking -6 day Stalk lodging 2.4%       Anther-silking interval -0.4 Day   Comments Ears per plant (#) 1.1   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
FAW = Fall armyworm
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha)
Low N = Managed Low Nitrogen
masl = meters above sea level
MD = Managed drought
MSV = maize streak virus
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight Ear aspect (1-5) 2.8   Plant aspect (1-5) 2.8   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