CIM20LAPP1A-11

CIMMYT's Latin America product pipeline Tropical Lowland (LatAm-PP1A) focuses on developing intermediate-maturing, white-grain, high-yielding maize hybrids that are drought tolerant, resistant to TSC, MLB and ear rots, and are suitable for food use in tropical rainfed dry/wet low-altitude areas in Latin America.   General Information   Region Latin America   Adaptation/Agroecological zone 0 - 1200m above sea level   Type of product Three-way cross hybrid   Year first announced 2022             Grain Characteristics Grain yield   Grain color White Grain yield under optimum conditions 8.1 t/ha   Grain texture Semi-dent Grain yield under rainfed conditions 5.4 t/ha       Grain yield on-farm 6.9 t/ha   Biotic Stress Performance Grain yield under drought stress 5.0 t/ha   Maydis leaf blight (MLB) (1-9) 3.8       Tar Spot Complex (TSC) (1-9) 4.0 Agronomic Characteristics   Diseases are scored on 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible 50% anthesis  57 DAP   Plant height 256 cm       Ear height 142 cm   Seed Production Characteristics Ear position (ratio) 0.55   SC female seed yield  5.8 t/ha Ears per plant 1.0   Male seed yield  3.4 t/ha Ear aspect 2.4   Nicking 0 days Bad husk cover 2.4%       Ear rot  6.3%   Comments Root lodging 3.5%   Product information is based on data from the 2020 CIMMYT LatAm Stage 4 Regional Trials and 2021 Stage 5 trials. Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
DAP = days after planting
MLB = Maydis leaf blight
SC = Single-cross
TSC = Tar spot complex Stalk lodging 3.1%   Anther-silking interval 0.5 days         Further Links   Full announcement & trial data