CIM23NUVA-13 is an early-maturing, high-yielding, drought tolerant, nutritious maize hybrid with orange grain that is biofortified with PVA and is NUE, resistant to GLS, TLB, Ear rots, and MSV, and bred for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies. It is especially notable for high optimum yeild, producing multiple ears per plant, excellent synchrony, flint grain, and resistance to stalk lodging. |
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General Information |
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Target region |
Southern Africa |
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Adaptation/Agroecological zone |
< 1800 masl |
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Type of product |
Three-way cross hybrid |
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Year first announced |
2024 |
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Grain Characteristics |
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Grain color |
Orange |
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Grain texture |
Flint |
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Provitamin A content |
11.9 µg/g |
Grain Yield |
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Grain yield under optimum conditions |
7.79 t/ha |
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Biotic Stress Performance |
Grain yield under managed drought stress |
2.37 t/ha |
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Turcicum leaf blight (TLB) (1-9)* |
1.9 |
Grain yield under low N stress |
2.55 t/ha |
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Grey leaf spot (GLS) (1-9)* |
2.4 |
Grain Yield on-farm (severe stress*) |
1.29 t/ha |
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Maize Streak Virus (MSV) (1-9)* |
2.4 |
* The 2023/24 season in Southern Africa was characterized by the worst drought of the century, declared a national disaster in several countries. Many of the farmers participating in the trial reported write-offs. |
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Ear rots |
6.1% |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
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Agronomic Characteristics |
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Maturity Group |
Early-maturing |
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Seed Production Characteristics |
Days to 50% anthesis |
64 DAP |
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SC female parent yield |
7.48 t/ha |
840 GDD |
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Male parent yield |
1.71 t/ha |
Anthesis-silking interval |
0.86 days |
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Nicking |
-4.1 days |
Plant height |
203.6 cm |
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Ear height |
90.7 cm |
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Comments |
Ears per plant |
1.30 |
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Product information is based on data from the CIMMYT Southern Africa 2022/23 Stage 4 and 2023/24 Stage 5 Trials. Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
DAP = Days after planting
GDD = Growing degree-days ˚ C
GLS = Grey Leaf Spot
Low N = managed low nitrogen stress
masl = meters above sea level
MSV = Maize Streak Virus
NUE = nitrogen-use efficient
opt. = optimum (44,444 plants per ha)
PVA = Provitamin A
SC = single-cross
TLB = Turcicum Leaf Blight (E. turcicum) |
Bad husk cover |
9.7% |
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Ear aspect (1-5)* |
2.3 |
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Root lodging |
2.8% |
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Stalk lodging |
0.0% |
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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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1. Full Product Announcement
(including trial results summary and site information) |
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2. Biofortified orange maize is as efficacious as a vitamin A supplement |
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3. Provitamin A maize within the maize seed systems and grain value chain in Tanzania |
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4. Zinc and provitamin A biofortified maize genotypes exhibited potent to reduce hidden hunger in Nepal |
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