| CIMMYT's eastern Africa product pipeline 1B (EA-PP1B) focuses on developing high-yielding, early maturing maize varieties with white grain, drought tolerance, NUE, and resistance to GLS, TLB, MSV, ear rots, and MLN, that are suitable for food use in tropical, rainfed, dry, mid-altitude areas in eastern Africa and similar agroecologies. |
|
General Information |
| |
Adaptation/Agroecological zone |
1000 - 1600 masl |
| |
Type of product |
Three-way cross hybrid |
| |
Year first anounced |
2019 |
| |
|
|
| |
Grain Characteristics |
| |
Grain color |
White |
| |
Grain texture |
Dent |
| |
|
|
|
|
| Grain Yield |
|
Biotic Stress Performance |
| Grain yield under optimum conditions |
6.7 t/ha |
|
Turcicum leaf blight (TLB) (1-9) |
4.6 |
| Grain yield under drought stress |
3.9 t/ha |
|
Grey leaf spot (GLS) (1-9) |
2.4 |
| Grain yield under low N stress |
4.2 t/ha |
|
Maize streak virus (MSV) (1-9) |
0.6 |
| Grain yield under MLN artificial Inoculation |
4.2 t/ha |
|
Maize Lethal Necrosis (MLN) (art. inoc.) (1-9) |
4.5 |
| |
|
|
Ear rots |
4.5% |
| Agronomic Characteristics |
|
Diseases were originally scored on a 1-5 scale but have been converted here to a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| Maturity |
120 DAP |
|
| Plant height |
210.9 cm |
|
|
|
| Ear height |
101.2 cm |
|
Seed Production Characteristics |
| Bad husk cover |
19.7% |
|
Nicking |
- 5 days |
| Root loging |
1.4% |
|
|
|
| Stalk lodging |
2.1% |
|
Comments |
| Anther-silking interval |
0.6 days |
|
Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2019.
Abbreviations:
art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
Low N = Managed Low Nitrogen
masl = meters above sea level
MD = Managed drought
MLN=Maize lethal necrosis
MSV = maize streak virus
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight |
| Ears per plant (#) |
1.1 |
|
| Ear aspect (1-5) |
2.9 |
|
| Plant aspect (1-5) |
2.6 |
|
| Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
|
| |
| |
|
|
| Further Links |
|
| Full Announcement |
|
| Trial Data Summary |
|
| Regional Trial Site Information |
|
| |
|
|
| |
|
|
| |
|
|
