Roundup Ready® Corn 2 contains in-plant tolerance to Roundup® brand herbicides, enabling growers to spray Roundup® brands over the top, from planting through the V8 stage or 30-inch corn height, with excellent crop safety and no yield reduction. Compared to popular conventional corn programs, the Roundup Ready® Corn 2 system costs less, while allowing hybrids to reach their maximum yield potential. While the U.S. regulatory agencies have given full approval to Roundup Ready® Corn 2 for commerce in the U.S. for marketing and consumption as food, food ingredients and feed for livestock, certain regulatory approvals are pending in certain export markets. For more information on these approvals, or for assistance in locating domestic grain outlets, see the American Seed Trade Association website ( or contact Monsanto directly at 800-768-6387.

2081 RR

81 Day

2082 RR

82 Day

2083 RR

83 Day

2084 RR

84 Day

3092 RR

92 Day

4082 RR

82 Day

4095 RR

95 Day

4096 RR

96 Day

6004 RR

104 Day

8200 RR

92 Day

Seed Corn Sizing

Larger Seed, Heavier Drop Smaller Seed, Lighter Drop
F11 F12 F13 F14 F15 F16
R21 R22 R23 R24 R25 R26

Mustang Seed sizes each hybrid up to 4 Grades sizes, 2 Flats and 2 Rounds. Seed size of each grade size will remain consistent, however weight will vary between hybrids and growing condition of each hybrid.

Seed Ratings Key

Rating Scale Plant Height Ear Height Ear Type Planting Date Flower Date
1-5, 1-Excellent S=Short L=Low F=Flex L=Lower E=Early
N/A=Not Available MS=Medium-Short M=Medium SF=Semi-Flex M=Medium M=Medium
  M=Medium H=High D=Determinate H=High L=Late


Ear Type Planting Date Flower Date
F=Flex L=Lower E=Early
SF=Semi-Flex M=Medium M=Medium
D=Determinate H=High L=Late