Unlike competitors, DuPont Pioneer, one of the largest companies producing seeds in the world, refuses intentions to grow genetically modified crops in Chinese fields, despite the legal obstacles.

Located in the Iowa agricultural company this fall, the first harvest gathered test of GM maize in China six years long effort to get government approval for new field trials.

The company is moving forward, while Monsanto Co retreats and rejects efforts to increase the production of GM crops in China amid disappointment industry in the legislative processes of Beijing.

Industry leaders claim that focus on obtaining permission to import new genetically modified crops and not on the resolution to cultivate them in China.

China is already a major producer of GM cotton, but does not allow commercial production of genetically modified corn. Permission to sell the seeds of GM maize Chinese farmers would be a big victory for the American seed producers, because China is the fastest growing corn market in the world.

But Chinese consumers last two years have become increasingly concerned about GMOs, and Beijing has almost ceased to issue permits for the importation of new GM crops. Another obstacle is the intention of China to promote their own innovations in biotechnology.

Representatives of the Pioneer reported that the company is in the early stages of applying for the permit commercial cultivation of GM maize, which could take at least six years.

This year, the researchers worked with Chinese scientists on sowing, harvesting and analysis of maize Pioneer, which was genetically modified to resist insects and herbicides.

Pioneer, which has created three joint ventures in China since 2002, the last time received permission to hold such field examination of genetically modified corn in the country in 2008.

Some experts believe that permit the cultivation of GM maize is unlikely in the near future.

The intention of China is to apply innovation in biotechnology, not technology multinationals.

Monsanto, which also has a joint venture in China, has given up trying to get permission for cultivation after conducting a small field examinations from 2009 to 2012, the company is Now focused on supporting farmers in the country through its usual production company seeds.

Syngenta AG was faced with lawsuits transporters and processors of grain after China refused to import cereals from the United States, containing GM maize Syngenta allowed in the US but banned in China.