Washington & Ainsworth, Iowa · Monday – Friday 8:00 am – 5:00 pm(319) 657-2020
Corn › W5129RIB

Wyffels Hybrids · Brand Blend

W5129RIB

108 RMSmartStax® PROFamily W5129

We stock this hybrid; call for Wyffels' ratings and placement.

Ask about W5129RIBWyffels tech sheet (PDF)

Placement

High yielding hybrid that will fit a lot of acres. Great late standing option. Well adapted across soil types.

Plant Physiology and Health

Trait(s)SmartStax® PRO
GDUs to Black LayerL, 2740
Days to Pollination73
GDUs to PollinationA, 1330
Early Vigor8
Early Canopy
Plant HeightM
Stalk Strength8
Root Strength8
Green Snap Resistance9
Drought Tolerance8
Staygreen8

Placement Considerations

Rimsulfuron ToleranceN

Ear/Grain Characteristics

Ear FlexSF
Ear Length8
Ear HeightM
Kernel Rows16-18
Test Weight7
Drydown7

Pest/Disease Ratings

Goss’ Wilt Tolerance8
Gray Leaf Spot Tolerance8
NLB, Race 0, Tolerance7
Stewarts Leaf Blight Tolerance
Anthracnose Tolerance9

Silage · 2025

Tons / acre35.2
Dry matter %38.3
Milk / ton3185.0
Milk / acre42572.0
Starch %44.2
NDFD 3045.8
Crude protein %8.0

FORAGE TEST:Dairyland Lab. FORAGE SOURCE: Wyffels Research Micro-Strip Test Sites in Illinois and Iowa, 2025. Minimum of 12 replications per hybrid per year.

Source: Wyffels Hybrids, wyffels.com (read 2026-09-27). Check the current Wyffels product guide before final placement decisions.