| ZM523 is an early-maturing open-pollinated maize variety (OPV) with white grain that is drought-tolerant and NUE, with resistance to GLS, MSV, and TLB, suitable for food use in tropical, rainfed, dry/wet mid-altitude and lowland ecologies in southern Africa and similar agroecologies. |
|
General Information |
| |
Target region |
Southern Africa |
| |
Adaptation |
<1800 masl |
| |
Type of product |
Open-Pollinated Variety (OPV) |
| |
Year entered in Regional Trials |
2005 |
| |
|
|
| |
|
|
Grain Characteristics |
| Grain Yield |
|
Grain color |
White |
| Grain yield under optimum conditions |
6.82 t/ha |
|
Grain texture |
Semi-dent |
| Grain yield under random stress |
2.86 t/ha |
|
|
|
| Grain yield under MSV stress (ai) |
7.31 t/ha |
|
Biotic Stress Performance |
| Grain yield under low N stress |
1.62 t/ha |
|
Turcicum leaf blight (TLB) (1-9)* |
2.6 |
| Grain yield under GLS & TLB (ai) |
5.89 t/ha |
|
Grey leaf spot (GLS) (1-9)* |
2.0 |
| |
|
|
Maize Streak Virus (MSV) (1-9)* |
3.0 |
| Agronomic Characteristics |
|
|
Common rust (P. Sorg) (1-9)* |
0.8 |
| Days to 50% anthesis |
67 |
|
Ear rots |
5.4% |
| Plant height |
220.3 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 |
84.8 cm |
|
| Ear position (0-1 ratio) |
0.44 |
|
|
|
| Root lodging |
8.1% |
|
Comments |
| Ears per plant |
0.95 |
|
Product information is based on data from the 2011/12 regional trials of early maturing populations from CIMMYT (EPOP12), evaluated at 21 locations in Southern Africa. Actual performance will vary depending on a number of agronomic and environmental factors.
CIMMYT grants licenses to pursue varietal registration of OPVs to qualified public-sector partners. Following successful varietal release in a country, commercial licenses may be issued to private-sector partners by CIMMYT or the varietal registrant on a non-exclusive basis, subject to the terms of the license issued to the varietal registrant.
Private-sector partners interested in commercializing a CIMMYT-derived OPV in a country where the product has not yet been released are encouraged to approach a qualified public-sector partner who may apply to CIMMYT for a varietal registration license.
Abbreviations:
ai = artificial inoculation/infestation
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 (E. turcicum) |
| Bad husk cover |
5.0% |
|
| Ear aspect (1-5)* |
3.00 |
|
| Plant aspect (1-5)* |
2.90 |
|
| Leaf senescence (1-10) |
0.50 |
|
| *Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
|
| |
| |
|
|
| Further Links |
|
| 1. Results of the 2011/12 Southern Africa Regional Trials - Early-Maturing OPVs (EPOP12) |
|
| |
| |
| 2. Results of the 2004/2005 Southern Africa Regional Trials Early-Maturing OPVs (EPOP05) |
|
| |
| |
|
|
| |
|
|
| |
|
|
| |
|
|
