Crop Scientists Say Biotechnology Seed Companies Are Thwarting Research

By ANDREW POLLACK

Biotechnology companies are keeping university scientists from fully researching the effectiveness and environmental impact of the industry’s genetically modified crops, according to an unusual complaint issued by a group of those scientists.

“No truly independent research can be legally conducted on many critical questions,” the scientists wrote in a statement submitted to the Environmental Protection Agency. The E.P.A. is seeking public comments for scientific meetings it will hold next week on biotech crops.