| CIM22SAPP1-12 is a high-yielding, late-maturing maize hybrid with white grain, that is drought tolerant, NUE, and resistant to GLS, TLB, ear rots, and MSV. It is suitable for cultivation for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies. It is moderately tolerant to MLN. |
|
General Information |
| |
Target region |
Southern Africa |
| |
Adaptation/Agroecological zone |
400-1800 masl |
| |
Type of product |
Three-way cross hybrid |
| |
Year first announced |
2023 |
| |
|
|
| |
|
|
Why farmers say they like it* |
| Grain Yield |
|
High yield, Vigor, Multiple cobs, Large Kernels |
| Grain yield under optimum conditions |
9.89 t/ha |
|
| Grain yield under managed drought |
2.75 t/ha |
|
*Common keywords from farmer feedback (2023 CIMMYT Southern Africa Maize Regional On-Farm Trials) |
| Grain yield under low N stress |
2.52 t/ha |
|
| Grain Yield on-farm (moderate stress) |
5.92 t/ha |
|
|
|
| Grain Yield on-farm (severe stress) |
2.13 t/ha |
|
Grain Characteristics |
| |
|
|
Grain color |
White |
| Agronomic Characteristics |
|
Grain texture |
Semi-flint |
| Maturity group |
Late |
|
|
|
| 50% anthesis |
73 DAP |
|
Biotic Stress Performance |
| 952 GDD (°C) |
|
Turcicum leaf blight (TLB) (1-9)* |
4.3 |
| Anthesis-silking interval |
1.39 Days |
|
Grey leaf spot (GLS) (1-9)* |
2.8 |
| Plant height |
233.2 cm |
|
Maize Streak Virus (MSV) (1-9)* |
3.7 |
| Ear height |
118.5 cm |
|
Rust (1-9)* |
3.4 |
| Ears per plant |
0.9 |
|
Ear rots |
9.7% |
| Ear position (ratio) |
0.51 |
|
*Scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Bad husk cover |
4.0% |
|
| Ear aspect (1-5)* |
2.7 |
|
|
|
| Root lodging |
5.9% |
|
Seed Production Characteristics |
| Stalk lodging |
1.9% |
|
Single-cross female parent yield |
11.02 t/ha |
| Avg score by Farmer (1-5)** |
2.24 |
|
Male parent yield |
3.86 t/ha |
*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 |
|
Nicking |
2.4 |
| |
|
|
| |
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) |
|
| |
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
