CIM23EAPP1-02-13

CIM23EAPP1-02-13 is an early-maturing, high-yielding, maize hybrid with white grain, drought tolerance, nitrogen-use efficiency, and resistance to GLS, TLB, ear rots, and MSV.    General Information   Target region Eastern Africa   Adaptation/Agroecological zone 600-1500 masl   Type of product Three-way cross       Year first announced 2025 Grain Yield       Grain yield (OPT) 6.31 t/ha   Why farmers say they like it* Grain yield (On-farm) 3.03 t/ha   Good yield, early maturity, disease resistance and lodging resistance Grain yield under low N stress 3.25 t/ha   Grain yield under managed drought 1.06 t/ha   *Common keywords from farmer feedback (EA-ROFT 2024-1B) Grain yield under MLN stress (AI) 5.60 t/ha       Agronomic Characteristics   Kernel Characteristics Maturity group Early   Kernel color White 50% anthesis 74.2  days   Kernel texture Semi-flint (864 GDD)       Anthesis-silking interval  1.19 days   Biotic Stress Performance Ear height  116cm   MLN (AI) (1-9)* 2.51 Plant height  233cm   Grey leaf spot (GLS) (AI & nat.) (1-9)* 2.88 Ears per plant 1.02   Turcicum leaf blight (TLB) (AI & nat.) (1-9)* 2.74 Bad husk cover 4.09%   Common rust (nat.) (1-9)* 2.45 Ear aspect (1-5)* 2.45   Ear rots (nat.) (1-9)* 8.64% Plant aspect (1-5)* 2.68   *Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. Root lodging 5.19%   Stalk lodging 6.66%       *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Seed Production Characteristics   SC female parent yield 7.37  t/ha       Male parent yield 1.85 t/ha Further Links   Nicking 3.1 days Full Product Announcement
(including trial results summary and site information)         Comments       Product information is based on data from East Africa 2023 Stage 4 (CIM23EAPP1B-RT) and 2024 Stage 5 (EA-ROFT 2024-1B) Trials. Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
AI = artificial infestation/inoculation
FAW = fall armyworm
GDD = growing degree-days (°C)
GLS = Grey Leaf Spot
Low N = managed low nitrogen
masl = meters above sea level
MLN = maize lethal necrosis
MSV = maize streak virus
nat. = natural infestation
NUE = Nitrogen-use efficient
RS = random stress
SC = single-cross
TLB = Turcicum Leaf Blight