CIM21LAPP2A-4

CIM21LAPP2A-4  is an intermediate-maturing, high-yielding, white maize hybrid with GLS, TLB, FSR and Ear rots resistance. The product is notable for its good husk cover, ear position, standability, good nicking, and is suitable for food use in the central mid-altitude environments of Mexico or similar agro-ecologies in other regions.   General Information   Target Region Latin America   Adaptation/Agroecological zone 1200 - 1800m above sea level   Type of product Three-way hybrid   Year first announced 2023         Grain Characteristics       Grain color White Abiotic Stress Performance   Grain texture Semi-dent Grain yield under optimum conditions 11.7 t/ha       Grain yield under rainfed conditions 8.2 t/ha   Biotic Stress Performance Grain yield on-farm 9.0 t/ha   Turcicum leaf blight (TLB) (1-9)* 3.2       Grey leaf spot (GLS) (1-9)* 3.4 Agronomic Characteristics   Ear Rots (%) 10.5% Maturity group Intermediate   Fusarium Stalk Rots (FSR) (%) 7.9% 50% anthesis 71 DAP   *Scored on 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible Plant height 268 cm   Ear height 134 cm       Ear position (ratio) 0.50   Seed Production Characteristics Ears per plant 0.96   SC female parent seed yield  9.6 t/ha Ear aspect (1-9)* 3.9   Male seed yield  4.3 t/ha Plant aspect (1-9)* 3.1   Nicking 0 days Bad husk cover 1.4%       Root lodging 1.6%   Comments Stalk lodging 3.0%   Product information is based on data from the 2021 CIMMYT Mexico Stage 4 Trials and 2022 Stage 5 Trials. Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
DAP = days after planting
SC = Single-cross
TLB = Turcicum leaf blight
GLS = Grey leaf spot
FSR = Fusarium Stalk Rots  Anther-silking interval 1.2 days   *Plant and ear aspects are scored on 1-9 scale, where 1 = desirable and 9 = undesirable characteristics           Further Links   Full Announcement & trial data