| ZM621 is an intermediate-maturing, open-pollinated maize variety (OPV) with white grain, is drought-tolerant and NUE, resistant to GLS, TLB, ear rots, and MSV, and suitable for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies. |
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General Information |
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Target region |
Southern Africa |
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Adaptation |
400-1800 masl |
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Type of product |
Open-Pollinated Variety (OPV) |
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Year entered in Regional Trials |
2009 |
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Grain Characteristics |
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Grain color |
White |
| Grain Yield |
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Grain texture |
Semi-dent |
| Grain yield under optimum conditions |
6.68 t/ha |
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| Grain yield under random stress |
2.98 t/ha |
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Biotic Stress Performance |
| Grain yield under low N stress |
3.02 t/ha |
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Turcicum leaf blight (TLB) (1-9)* |
4.8 |
| Grain yield under MSV stress (ai) |
5.32 t/ha |
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Grey leaf spot (GLS) (1-9)* |
3.0 |
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Maize Streak Virus (MSV) (1-9)* |
1.8 |
| Agronomic Characteristics |
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Common rust (P. Sorg) (1-9)* |
2.0 |
| Days to 50% anthesis |
69 |
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Ear rots |
3.8% |
| Plant height |
187.0 cm |
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*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 |
97.4 cm |
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| Ear Position (0-1 ratio) |
0.45 |
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| Root lodging |
13.8% |
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Comments |
| Stalk lodging |
4.9% |
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Product information is based on data from the 2011/2012 Regional Trials for Intermediate to Late Maturing Populations from CIMMYT evaluated at 25 locations in Southern Africa (ILPOP12). 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) |
| Ears per plant |
0.95 |
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| Bad husk cover |
11.1% |
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| Ear aspect (1-5)* |
2.40 |
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| Plant aspect (1-5)* |
4.50 |
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| *Ear aspect is scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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| Further Links |
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| Results of the 2011/12 Southern Africa Regional Trials - Intermediate- to Late-Maturing OPVs (ILPOP12) |
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