| Country | Area of trait (000’ ha) |
Yield assumption % change | Base yield (tonnes/ha) | Farm level price: $/tonne) | Cost of tech (€/ha) | Impact on costs, net of cost of tech ($/ha) | Change in farm income ($/ha) | Change in farm income at national level (‘000 $) | Production impact (tonnes) |
|---|---|---|---|---|---|---|---|---|---|
| Stacked-traited maize | 70,347 | +16 | 5.2 | 243.72 | 70.76 | 74.79 | 206.49 | 14,582 | 58,440 |
| HT maize only | 5,667 | 0 | 5.47 | 243.72 | 23.16 | 32.98 | 9.82 | 55.6 | 0 |
| Staked traited cotton | 11,849 | 20.66 | 0.82 | 1,730 | 107.30 | 123.87 | 366.43 | 4,342 | 2,007 |
| HT cotton | 254 | 4 | 0.82 | 1,730 | 34.20 | 63.94 | 86.49 | 22.0 | 397 |
Sources:
Areas planted: ICA – Colombian Agricultural Institute
Costs of technology: Brookes and Barfoot1, AgroBio (personal communications), Céleres6,15
Cost changes for IR maize and cotton based on reduction in insecticide use and application. Cost changes for HT crops based on reductions in weed control: use of herbicides for maize and use of herbicides and hand weeding in cotton. Sources: Céleres,6,15 Brookes and Barfoot.1