Pioneer Seeks Deregulation of DP23211 Maize Nov 3, 2020 | Biotechnology, News, Seeds Your subscription level does not currently cover this area of our services. Please contact us to find out how to gain access. Username or E-mail Password * Remember Me Forgot Password Tags: Corteva, Glufosinate Tolerance, Herbicide Tolerance, Insect Resistance, Maize, Pioneer, Regulatory, USA