| CIM22SAPP1-15 is a high-yielding, intermediate-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 has demonstrated remarkable performance for GLS resistance and has good nicking. |
|
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* |
| |
High yield, Vigor, Big/long Cobs |
| |
|
|
| Grain Yield |
|
*Common keywords from farmer feedback (2023 CIMMYT Southern Africa Maize Regional On-Farm Trials) |
| Grain yield under optimum conditions |
9.871 t/ha |
|
| Grain yield under managed drought |
2.644 t/ha |
|
|
|
| Grain yield under low N stress |
2.451 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 |
Intermediate |
|
Turcicum leaf blight (TLB) (1-9)* |
3.9 |
| 50% anthesis |
71 DAP |
|
Grey leaf spot (GLS) (1-9)* |
3.2 |
| 931 GDD (°C) |
|
Maize Streak Virus (MSV) (1-9)* |
3.5 |
| Anthesis-silking interval |
1.23 Days |
|
Rust (1-9)* |
4.1 |
| Plant height |
236.3 cm |
|
Ear rots |
11.8% |
| Ear height |
120.3 cm |
|
*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Ears per plant |
0.9 |
|
| Ear position (ratio) |
0.5 |
|
|
|
| Bad husk cover |
2.8 |
|
Seed Production Characteristics |
| Ear aspect (1-5)* |
2.7 |
|
Single-cross female parent yield |
10.95 t/ha |
| Root lodging |
6.3% |
|
Male parent yield |
3.18 t/ha |
| Stalk lodging |
1.9% |
|
Nicking |
-1.0 |
| Avg score by Farmer (1-5)** |
2.33 |
|
|
|
*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
masl = meters above sea level
MSV= Maize Streak Virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight |
| |
| |
|
|
| Further Links |
|
Full Product Announcement
(including trial results summary and site information) |
|
| |
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
