CIM20LAPP1A-12

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 hybrid   Year first announced 2022         Grain Characteristics       Grain color White Grain yield   Grain texture Semi-dent Grain yield under optimum conditions 8.3 t/ha       Grain yield under rainfed conditions 5.7 t/ha   Biotic Stress Performance Grain yield on-farm 7.3 t/ha   Maydis leaf blight (MLB) (1-9) 3.2 Grain yield under drought stress 4.5 t/ha   Tar Spot Complex (TSC) (1-9) 3.5       Diseases are scored on 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible Agronomic Characteristics   50% anthesis 58 DAP       Plant height 252 cm   Seed Production Characteristics Ear height 135 cm   Female seed yield   5.8 t/ha Ear position (ratio) 0.53   Male seed yield  3.3 t/ha Ears per plant 1.0   Nicking 0 days Ear aspect 2.4       Bad husk cover 2.3%   Comments Ear rot  5.7%   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 Root lodging 4.6%   Stalk lodging 4.8%   Anther-silking interval 0.3 days         Further Links   Full announcement & trial data