Variety performance review
Pioneer Full-Season Corn (P1197AM family) in the Corn Belt Core.
- Good
- Corteva Agriscience (Pioneer)
- 111–115 RM
- GMO
Trait package: Roundup Ready 2, Optimum AcreMax XTreme
Regional strengths
Full-RM Pioneer hybrids match the long Corn Belt Core season for maximum yield potential. Iowa State and Illinois Corn Performance Trials test multiple Pioneer hybrids in this maturity band annually — read the current year's report for verified head-to-head yield data.
Regional weaknesses
Tar spot pressure has built rapidly across Iowa, Illinois, and Indiana since 2018; Pioneer's tar-spot tolerance varies by hybrid and growers should request the specific hybrid number's tar spot rating from their dealer. 111+ RM hybrids north of Highway 30 in Iowa face frost risk in cold years.
Yield data
Trial-verified performance.
Average yield
— bu/acre
Data quality
company reported
Agronomic ratings
Drought tolerance
good
Standability
good
Emergence
good
Winter hardiness
na
Disease resistance
- Gray leaf spot:good
- Northern corn leaf blight:good
- Tar spot:fair
Best for
- full-season Corn Belt acres
- high-fertility soils
- irrigated production
Not recommended for
- fields north of central Minnesota
- early-frost-prone bottoms
Best soil types
Mollisol prairie loam, Drummer silty clay loam
Seeding rate
32,000–36,000 seeds/acre — variable rate by soil productivity
Data quality & sources
Quality: company-reported · Last updated 2024.
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