Estimates for 1999 crop
GMO:
35% of U.S. Corn acres planted
55% of U.S. Soybeans acres planted*
Non-GMO:
65% of U.S. Corn acres planted
45% of U.S. Soybeans acres planted*
*Values are estimated and may differ depending on the quantity of seed brownbagged from last year and used for planting this year.
Source: Dr. Robert N. Wisner, University Professor and Extension Economist, Dept. of Economics, Iowa State University
Extent of Bt and herbicide-tolerant seed technologies used in corn, soybean, and cotton production, by region, 1996-1998
| Technology/Region | Acreage | Production | Acreage | Production | Acreage | Production |
| Bt corn | ||||||
| All surveyed states | 1.4 | 1.5 | 7.6 | 7.8 | 19.1 | 20.7 |
| Heartland | 1.5 | 1.6 | 8.1 | 8 | 19.4 | 20.3 |
| Northern Crescent | id | id | id | id | 16.2 | 18.3 |
| Prairie Gateway | id | id | id | id | 19.2 | 23.7 |
| Herbicide-tolerant corn2 | ||||||
| All surveyed states | 3 | 3.1 | 4.3 | 3.9 | 18.4 | 19.4 |
| Heartland | 2.8 | 2.8 | 4.8 | 4.3 | 19.7 | 20.6 |
| Northern Crescent | id | id | id | id | 9.5 | 11.6 |
| Prairie Gateway | id | id | id | id | 18.3 | 16.7 |
| Herbicide-tolerant soybeans | ||||||
| All surveyed states | 7.4 | 7.2 | 17 | 17.5 | 44.2 | 44.8 |
| Heartland | 6.9 | 2.8 | 14.7 | 16.1 | 44.3 | 45.1 |
| Mississippi Portal | 9.8 | 10.1 | 30.8 | 29.2 | 46.6 | 45.5 |
| Northern Crescent | id | id | 15.2 | 14.8 | 27.5 | 28 |
| Prairie Gateway | id | id | 17.5 | 20.2 | 59.2 | 64.4 |
| Southern Seaboard | id | id | 17.3 | 19.1 | 72 | 76.3 |
| Eastern Uplands | id | id | id | id | 59 | 57.4 |
| Bt cotton | ||||||
| All surveyed states | 14.6 | 19 | 15 | 18.3 | 16.8 | 23.5 |
| Mississippi Portal | 23.8 | 25.3 | 23.1 | 23.3 | 34.8 | 38 |
| Southern Seaboard | id | id | 21.5 | 24.7 | 18.2 | 18.2 |
| Fruitful Rim | id | id | 22.2 | 22.9 | 18.9 | 22.7 |
| Herbicide-tolerant cotton | ||||||
| All surveyed states | id | id | 10.5 | 11.1 | 26.2 | 29.3 |
| Mississippi Portal | id | id | 16.9 | 16.2 | 24.5 | 23 |
| Southern Seaboard | id | id | 16.1 | 14.5 | 28.1 | 31.7 |
| Prairie Gateway | id | id | id | id | 34.2 | 56.9 |
1 1998 estimates for corn and cotton include acreage and production with stacked varieties (with Bt and herbicide-tolerant genes).
2 Includes seed obtained by traditional breeding but developed using biotechnology techniques that helped to identify the herbicide-tolerant genes.
id=insufficient data for a statistically reliable estimate
Source: USDA