| CIMMYT's eastern Africa product profile 2 (EA-PP2) focuses on developing high-yielding, late-maturing maize varieties with white grain, drought tolerance, NUE, and resistance to GLS, TLB, MSV, ear rots, and common rust, that are suitable for food use in tropical, rainfed, wet upper mid-altitude areas in eastern Africa and similar agroecologies. |
|
General Information |
| |
Adaptation/Agroecological zone |
1300 - 2000 masl |
| |
Type of product |
Three-way cross hybrid |
| |
Year first announced |
2018 |
| |
|
|
| |
Grain Characteristics |
| |
Grain color |
White |
| |
Grain texture |
Semi-flint |
| |
|
|
|
|
| Grain Yield |
|
Biotic Stress Performance |
| Grain yield under optimum conditions |
6.4 t/ha |
|
Turcicum leaf blight (TLB) (1-9) |
2.2 |
| Grain yield under HD |
4.1 t/ha |
|
Grey leaf spot (GLS) (1-9) |
2.0 |
| Grain yield under drought stress |
0.3 t/ha |
|
Common rust (1-9) |
2.8 |
| Grain yield under low N stress |
3.5 t/ha |
|
MLN Score (under artificial inoculation) (1-9) |
6.0 |
| |
|
|
Grain weight loss (MW) |
5.4% |
| Agronomic Characteristics |
|
Grain weight loss (LGB) |
11.8% |
| Maturity |
160 DAP |
|
Ear Rots |
8.2% |
| Plant height |
243 cm |
|
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. |
| Ear height |
122 cm |
|
| Bad husk cover |
5.3% |
|
|
|
| Root lodging |
3.4% |
|
Seed Production Characteristics |
| Stalk lodging |
11.8% |
|
Nicking |
0 Days |
| Anther-silking interval |
1.1 Days |
|
|
|
| Ear aspect (1-5) |
2.4 |
|
Comments |
| Plant aspect (1-5) |
2.6 |
|
Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2017.
Abbreviations:
DAP = days after planting
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha)
LGB = Larger grain borer
Low N = Managed Low Nitrogen
masl = meters above sea level
MSV = maize streak virus
MW = Maize Weevil
NUE = Nitrogen Use Efficient
Opt = Optimum Management
TLB = Turcicum Leaf Blight |
| 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 |
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
