CIM24EAHW-11

CIM24EAHW-11 is a late-maturing, high-yielding, white maize hybrid, with resistance to GLS, TLB, rust, and ear rots, bred for target agroecologies of the highlands of eastern Africa. It is notable for prolificacy.   General Information   Target region Eastern Africa   Adaptation/Agroecological zone 1800-2400 masl   Type of product Three-way cross   Year first announced 2026             Why farmers say they like it* Grain Yield   High yielder, Prolific and Earliness Grain yield (opt.) 9.9 t/ha   Grain yield (on-farm, mod. stress) 8.1 t/ha   *Common keywords from farmer feedback during 2025 regional on-farm trials (CIM-EAHW25A-ROFT) Grain yield (on-farm, severe stress) 6.7 t/ha   Grain yield under low N stress 4.1 t/ha             Kernel Characteristics Agronomic Characteristics   Kernel color White Maturity group Late   Kernel texture Semi-flint 50% anthesis 88 days       (787.8 GDD)   Biotic Stress Performance Anthesis-silking interval  2.2 days   Grey leaf spot (GLS) (AI) (1-9)* 3.8 Ear height  148.5cm   Turcicum leaf blight (TLB) (AI) (1-9)* 4.0 Plant height  259.6cm   Rust (nat.) (1-9)* 2.7 Ears per plant 1.2   Ear rots 5.9% Bad husk cover 5.6%   *Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. Ear aspect (1-5)* 2.4   Plant aspect (1-5)* 2.4       Root lodging 4.9%   Seed Production Characteristics Stalk lodging 8.8%   SC female parent yield 9.5 t/ha *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Male parent yield 3.5 t/ha   Nicking 2.6 days           Further Links   Comments Full Product Announcement
(including trial results summary and site information)   Product information is based on data from the CIMMYT East Africa 2024 Regional Trial (CIM24RT-EA-PP3-01) and 2025 regional on‐farm trials (CIM-EAHW25A-ROFT-01). Actual performance will vary depending on a number of agronomic and environmental factors. 

Abbreviations:
AI = artificial infestation/inoculation
GDD = growing degree-days (°C)
GLS = Grey Leaf Spot
Low N = managed low nitrogen stress
masl = meters above sea level
nat. = natural infestation
opt. = optimum (44,444 plants per ha)
RS = random stress
SC = single-cross
TLB = Turcicum Leaf Blight