| 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, and ear rots, 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 announced |
2017 |
| |
|
|
| |
Grain Characteristics |
| |
Grain color |
White |
| |
|
|
Grain texture |
Flint |
| Grain Yield |
|
|
|
| Grain yield under optimum conditions |
9.9 t/ha |
|
Biotic Stress Performance |
| Grain yield under high density |
8.8 t/ha |
|
Turcicum leaf blight (TLB) (1-9) |
4.8 |
| Grain yield under random stress |
5.7 t/ha |
|
Grey leaf spot (GLS) (1-9) |
3.6 |
| Grain yield under low N stress |
3.8 t/ha |
|
Common rust (1-9) |
2.8 |
| Grain yield under striga conditions |
3.4 t/ha |
|
Maize lethal necrosis (MLN) under art. inoc. (1-9) |
4.2 |
| |
|
|
Ear rots |
3.2% |
| 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 |
105 DAP |
|
| Plant height |
215.9 cm |
|
| Ear height |
103.6 cm |
|
|
|
| Bad husk cover |
7.7% |
|
Seed Production Characteristics |
| Root lodging |
2.3% |
|
Nicking |
0 Days |
| Stalk lodging |
9.5% |
|
|
|
| Anther-silking interval |
1.3 Days |
|
Comments |
| Ear aspect (1-5) |
2.5 |
|
Product information is based on data from various trials conducted by CIMMYT in eastern Africa in 2016.
Abbreviations:
art. inoc. = artificial inoculation
DAP = days after planting
GLS = Grey Leaf Spot
HD = High Density (80,000 plants per ha)
Low N = Managed Low Nitrogen
masl = meters above sea level
MSV = maize streak virus
NUE = Nitrogen Use Efficient
TLB = Turcicum Leaf Blight |
| Plant aspect (1-5) |
2.3 |
|
| 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 |
|
| |
|
|
| |
|
|
