Adaptation analysis of insect-resistant transgenic line after introducing mcry1F gene in maize

The ability to adapt, survive, and compete with weeds of transgenic plants is the necessary evaluation content release lines in target regions. We compared weediness agronomic traits maize G1F-8 G1F-19 carrying mcry1F gene their near-isogenic inbred line Zheng 58 wasteland cultivated field under natural conditions for two consecutive years. results showed that there was no significant difference identified species, quantity, relative coverage ratio (RCR) between fields G1F-8, G1F-19, 58, regardless sowing pattern wasteland. Compared vigour weeds, none survival advantages, all weak growth potential final grain yield. Meanwhile, volunteer seedlings were found upon investigation following year. simulated seed overwintering experiment further three kinds could not germinate second In land, had same stages, plant height, RCR as throughout conclusion, exhibited adaptability risk Gongzhuling, Jilin, China.