CIM21SAPP1-10

CIM21SAPP1-10 is a intermediate-maturing, white, high yielding, drought tolerant, NUE, and resistant to GLS, TLB, Ear rots, and MSV, bred for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies.     General Information   Target region Southern Africa   Adaptation/Agroecological zone 400-1800 masl   Type of product Three-way cross hybrid   Year first announced 2022           Grain Yield   Grain Characteristics Grain yield under optimum conditions 8.51 t/ha   Grain color White Grain yield under managed drought stress 4.14 t/ha   Grain texture Semi-dent Grain yield under low N stress 3.18 t/ha             Biotic Stress Performance Agronomic Characteristics   Turcicum leaf blight (TLB) (1-9)* 3.5 50% anthesis 923 GDD (°C)   Grey leaf spot (GLS) (1-9)* 4.8 Anthesis-silking interval 0.49 days   Maize Streak Virus (MSV) (1-9)* 3.0 Plant height 256.8 cm   Ear rots 4.1% Ear height 132.9 cm   *Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. Ears per plant 1.0   Bad husk cover 5.8%       Ear aspect (1-5)* 2.6   Seed Production Characteristics Root lodging 6.8%   SC female parent yield 9.31t/ha Stalk lodging 3.8%   Male parent yield 1.90 t/ha *Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics   Nicking -0.6             Comments Further Links   Product information is based on data from various trials conducted by CIMMYT in southern Africa in 2021 and 2022.  Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
GDD = growing degree-days
GLS = Grey Leaf Spot
Low N = managed low nitrogen stress
masl = meters above sea level
MSV = Maize Streak Virus
opt. = optimum (44,444 plants per ha)
SC = single-cross
TLB = Turcicum Leaf Blight (E. turcicum) Full product announcement, including southern Africa 2021 Regional Trial and 2022 Regional On-Farm Trial data