Variety performance review
WestBred WB4458 in the Upper Southeast.
- Good
- Bayer / WestBred
- Medium-late soft red winter
Regional strengths
WB4458 has been a top yielder in the Upper Southeast small-grains trial belt — Kentucky and Tennessee variety reports have consistently placed it in upper performance tiers. Strong rust package matches the humid spring conditions that drive rust pressure across the region.
Regional weaknesses
Like most current soft red winter wheats, head scab tolerance is fair rather than excellent — wet flowering windows demand fungicide protection regardless of variety. Standability under heavy nitrogen rates can decline; manage N timing carefully on high-yield acres.
Yield data
Trial-verified performance.
Average yield
— bu/acre
Data quality
trial verified
Agronomic ratings
Drought tolerance
fair
Standability
good
Emergence
good
Winter hardiness
good
Disease resistance
- Stripe rust:good
- Leaf rust:good
- Fusarium head blight (head scab):fair
- Powdery mildew:good
Best for
- double-crop wheat-soybean rotation
- high-yield management on silt loam
Not recommended for
- organic / no-fungicide systems where strong scab resistance is needed
Best soil types
silt loam, limestone-derived loam
Seeding rate
1.4–1.8 million seeds/acre