| CIM20EAPP1-01-38 is an intermediate-maturing, high-yielding, white maize hybrid with drought tolerance, nitrogen-use efficiency, and resistance to GLS, TLB, ear rots, MSV, and striga. |
|
General Information |
| |
Adaptation/Agroecological zone |
600-1500 masl |
| |
Region |
Eastern Africa |
| |
Type of product |
Three-way cross |
| |
Year first announced |
2022 |
| |
|
|
|
|
| Grain Yield |
|
Kernel Characteristics |
| Grain yield (OPT) |
8.86 t/ha |
|
Kernel color |
White |
| Grain yield (RS) |
2.32 t/ha |
|
Kernel texture |
Semi-dent, opaque crown |
| Grain yield under low N stress |
4.41 t/ha |
|
|
|
| Grain yield under managed drought |
2.45 t/ha |
|
Biotic Stress Performance |
| Grain yield under FAW (AI) |
6.78 t/ha |
|
MLN (AI) |
6.9 |
| Grain yield under FAW (nat.) |
5.92 t/ha |
|
Grey leaf spot (GLS) (1-9) |
2.6 |
| Grain yield under striga stress |
6.36 t/ha |
|
Turcicum leaf blight (TLB) (1-9) |
5.9 |
| Grain yield under MLN stress (AI) |
3.14 t/ha |
|
FAW foliar damage (AI) |
4.8 |
| |
|
|
FAW ear damage (AI) |
1.6 |
| Agronomic Characteristics |
|
Ear rots |
10.3% |
| 50% anthesis |
791.0 GDD |
|
Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Anthesis-silking interval |
1.7 days |
|
| Ear height |
101.3 cm |
|
|
|
| Plant height |
204.1 cm |
|
Seed Production Characteristics |
| Ears per plant |
1.1 |
|
SC female parent yield |
8.18 t/ha |
| Bad husk cover |
7.1% |
|
Male parent yield |
2.88 t/ha |
| Ear aspect (1-5) |
2.5 |
|
Nicking |
-1 day |
| Plant aspect (1-5) |
2.6 |
|
|
|
| Root lodging |
8.5% |
|
Comments |
| Stalk lodging |
5.5% |
|
Product information is based on data from the CIMMYT East Africa 2020 Regional Trial (CIM20EAPP1A) and 2021 regional on-farm trials (EA-ROFT 2021-1A).
Abbreviations:
AI = artificial infestation/inoculation
FAW = fall armyworm
GDD = growing degree-days (°C)
GLS = Grey Leaf Spot
Low N = managed low nitrogen
masl = meters above sea level
MLN = maize lethal necrosis
MSV = maize streak virus
nat. = natural infestation
NUE = Nitrogen-use efficient
RS = random stress
SC = single-cross
TLB = Turcicum Leaf Blight |
| Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
|
| |
| |
|
|
| Further Links |
|
Full Product Announcement
(including trial results summary and site information) |
|
| |
| |
|
|
| |
|
|
| |
|
|
| |
|
|
