CIM22SAPP2-10

CIM22SAPP2-10 is a high-yielding, early-maturing maize hybrid with white grain, that is drought tolerant, NUE, and resistant to GLS, MSV, and TLB. It is suitable for cultivation for food use in tropical, rainfed, dry/wet mid-altitude and lowland ecologies in southern Africa and similar agroecologies. It has demonstrated good nicking and comparatively good yield under severe stress.   General Information   Target region Southern Africa   Target region <1800 masl   Type of product Three-way cross hybrid   Year first announced 2023         Why farmers say they like it*   High yield, Good germination/establishment, Big cobs       Grain Yield   *Common keywords from farmer feedback (2023 CIMMYT Southern Africa Maize Regional On-Farm Trials) Grain yield under optimum conditions 8.24 t/ha   Grain yield under managed drought stress 2.25 t/ha       Grain yield under low N stress 3.26 t/ha   Grain Characteristics Grain Yield on-farm (moderate stress) 6.48  t/ha   Grain color White Grain Yield on-farm (severe stress) 1.99  t/ha   Grain texture Semi-dent           Agronomic Characteristics   Biotic Stress Performance Maturity group Early   Turcicum leaf blight (TLB) (1-9)* 3.5 50% anthesis 66 DAP   Grey leaf spot (GLS) (1-9)* 4.2 870 GDD (°C)    Maize Streak Virus (MSV) (1-9)* 3.5 Anthesis-silking interval 1.06 days   Rust (1-9)* 3.0 Plant height 242.9 cm   Ear rots 9.4% Ear height 118.2 cm   *Scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. Ears per plant 1.1   Ear position (ratio) 0.49       Bad husk cover 4.2%   Seed Production Characteristics Ear aspect (1-5)* 2.7   Single-cross female parent yield 10.95 t/ha Root lodging 8.0%   Male parent yield 3.18 t/ha Stalk lodging 3.0%   Nicking -1.0 days Avg score  by Farmer (1-5)** 2.19       *Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics
** Farmer scores on a 1-5 scale, where 1=very good, 5=very bad   Comments   Product information is based on data from CIMMYT Southern Africa Maize Regional On-Station (Stage 4) and On-Farm (Stage 5) Trials. Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
DAP = days after planting
GDD = Growing degree-days
GLS = Grey Leaf Spot
Low N = low soil nitrogen
MSV= Maize Streak Virus
NUE = Nitrogen Use Efficient
masl = meters above sea level
TLB = Turcicum Leaf Blight (E. turcicum)         Further Links   Full Product Announcement
(including trial results summary and site information)