From: A case study of GM maize gene flow in South Africa
% GM threshold
<1.0 to 0.1
<0.1 to 0.01
<0.01 to 0.001
Distance range (m)
14-45 (mean) a 36-135 (high) b
45-145 (mean) 135-503 (high)
145-473 (mean) 503-1869 (high)
Non-GMc
X
Organicc
GM field trials
Non-GM seed production