From: Bt cotton seed purity in Burkina Faso: status and lessons learnt
 | Cry1Ac | Cry2Ab | Cry1Ac + Cry2Ab |
---|---|---|---|
Number of sample | 349 | 349 | 349 |
Share of samples with presencea of the concerned Cry gene /% | 95.7 | 94.3 | 92.6 |
Presence rateb of Cry1Ac /% | |||
 Mean | 88.1 |  | 88.8 |
 Std. deviation | 11.9 |  | 11.2 |
Presence rateb of Cry2Ab /% | |||
 Mean |  | 86.5 | 86.6 |
 Std. deviation |  | 12.2 | 12.1 |