RK642SSTX

103 Relative Maturity
2500 GDU 14-16 Kernal Rows

•Medium-tall plant with beautiful grain quality

•Excellent stalks, root, and intactness

•Strong early growth

•Widely adapted east, west, north, south



6809 Wilburn Rd • Sun Prairie, WI 53590 • 1-800-BUY-RENK • renkseed.com

1 2 3 4 5 6 7 8 9

Emergence
Standability Stalks
Standability Roots
Green Snap
Drought Tolerance
Test Weight
Stay Green
Anthracnose Stalk Rot
Gray Leaf Tolerance
Goss's Wilt Tolerance
Northern Leaf Blight
Tar Spot
High Yield Environments
Medium Yield Environments
Low Yield Environments
Corn on Corn
Fungicide Response
Adaptation to Course Soils
Adaptation to Fine Soils
Density Response
Optimum Density

32-38,000
Herbicide Cautions

SU
Scale: 9 = Excellent, 1 = Poor

RK642SSTX

103 RM

Yield versus Plot Average

Results in Yield Environment % of Average Results in Predominant Soil Type % of Average
High: 99(17) Fine: 101(7)
Medium: 101(34) Medium: 100(36)
Low: 113(1) Coarse: 102(6)
Non-Rotated: 100(32)
Numbers above are variety's yield versus plot average expressed as %. The higher the number the better. the number in parentheses is number of plots in that set.

Yield for corn: High > 225 bu/acre, Medium is 225 to 150 bu/acre and Low < 150 bu/acre

Soil: Fine is high organic matter/water capacity (heavy silt), Coarse is low organic matter/water capacity (sand or gravel)

6809 Wilburn Rd • Sun Prairie, WI 53590 • 1-800-BUY-RENK • renkseed.com

State Trial and F.I.R.S.T. Top Finishes

Year--Location
2022 SOUTH SHORE SILAGE BEEF/TON
2022 SOUTH SHORE SILAGE MILK/TON
2022 SOUTH SHORE SILAGE YIELD
2022 BROOKINGS SILAGE BEEF/TON
2022 BROOKINGS SILAGE MILK/TON
2022 SAGINAW, MI
2022 MONTCALM, MI
2022 INGHAM, MI
2022 MI ZONE 2/3 CONVENTIONAL SUMMARY
2022 MARSHFIELD, WI SILAGE
2021 STATE-ZONE 2/3 MI CONVENTIONAL
2021 STATE-INGHAM, MI
2021 STATE-ALLEGAN, MI
2021 STATE-ZONE 2 MI SUMMARY
2021 STATE-INGHAM, MI SILAGE MILK/ACRE
2021 STATE-INGHAM, MI SILAGE MILK/TON
2021 STATE-OTTAWA, MI SILAGE MILK/ACRE
2021 STATE-OTTAWA, MI SILAGE MILK/TON
2021 STATE-ZONE 2/3 MI SUMMARY SILAGE MILK/ACRE
2021 STATE-INGHAM, MI SILAGE TONNAGE
2021 STATE-HURON, MI SILAGE TONNAGE
2021 STATE-OTTAWA, MI SILAGE TONNAGE
2021 STATE-ZONE 2/3 MI SUMMARY SILAGE TONNAGE
2021 STATE-VALDERS, WI SILAGE TONNAGE
2021 STATE-CHIPPEWA FALLS, WI SILAGE TONNAGE
2021 STATE-NORTH CENTRAL ZONE WI SILAGE SUMMARY MILK/ACRE
2021 STATE-NORTH CENTRAL ZONE WI SILAGE SUMMARY TONNAGE
2021 FIRST-MONROE, WI
2021 FIRST-IRENE, SD
2021 FIRST-JEFFERS, MN
2020 INGHAM, MI SILAGE MILK/TON
2020 HURON, MI SILAGE YIELD
2020 VALDERS, WI SILAGE YIELD
2020 NORTH CENTRAL ZONE, WI MILK/ACRE
2020 NORTH CENTRAL ZONE, WI SILAGE YIELD
2020 NORTH CENTRAL ZONE, WI MILK/TON
2020 GALESVILLE, WI
2020 SOUTH CENTRAL ZONE, WI INDEX
2020 FIRST-Beresford, SD
2020 FIRST-Malta, IL
2020 FIRST-Tampico, IL
2020 FIRST-Ventura, IA
2019 SOUTHERN CENTRAL ZONE, WI P.I. SUMMARY
2019 Hanover, MI FIRST
2019 MISO SUMMARY FIRST
2019 Nerstrand, MN FIRST
2019 WISO SUMMARY FIRST
2019 Arlington, WI FIRST
2019 Janesville, WI FIRST
2019 Monroe, WI FIRST
2019 CORWITH, IA
2019 SHELDON, IA
2018 OTTAWA CO, MI SILAGE MILK/ACRE 2YR
2018 OTTAWA CO, MI SILAGE MILK/TON 2YR
2018 OTTAWA CO, MI SILAGE YIELD 2YR
2018 INGHAM CO, MI SILAGE MILK/ACRE 2YR
2018 INGHAM CO, MI MILK/TON YIELD 2YR
2018 INGHAM CO, MI SILAGE YIELD 2YR
2018 HURON CO, MI SILAGE MILK/TON 2YR
2018 ZONE2/3 SILAGE MILK/ACRE SUMMARY 2YR
2018 ZONE2/3 SILAGE MILK/TON SUMMARY 2YR
2018 ZONE2/3 SILAGE YIELD SUMMARY 2YR
2018 HURON CO, MI MILK/TON SILAGE
2018 FIRST-MAZON, IL
2018 FIRST- MAZON, IL