Figure 3. Greenhouse trial design to measure gene flow from GM cotton to conventional lines during 2012 and 2013.

The GM cotton was planted in a 4 m × 8 m square in the middle of a 60 m × 8 m square planting of non-GM cotton. Non-GM cotton in the west of greenhouse was set up as the control group and non-GM cotton in the east of greenhouse as the treatment group. Bars indicate sampling points.