My Zimbio
Top Stories

Wednesday, December 29, 2010

Human error spreads GM crops

Study: Human Error Spreads GM Crops

disclaimer: image is for illustration purposes only
by Staff Writers
Tucson (UPI) Dec 28, 2010 

Careless handling of the seeds of genetically modified crops may be the key reason for their unintended spread, U.S. researchers say.

The finding by researchers at the University of Arizona challenges the long-held belief that the main source of GMcontamination is the transfer of pollen by bees, Britain's The Guardian reported Wednesday.

Entomologist Shannon Heuberger and her colleagues measured the movement of genes between different populations of Bacillus thuringiensis cotton, a widely-planted GM crop, in 15 fields in Arizona.

Gene flow via the transmission of pollen by bees was rare, they found. Fewer than 1 percent of seeds produced by ordinary cotton plants contained genes from Bt cotton that had been transmitted in this way, they said.

But poor seed sorting resulted in some seed bags intended for planting in non-GM fields containing as much as 20 percent GM seed, they discovered.

And one non-GM field was found to have a large number of GM plants due to human error in planting, they said.

"Our most important result is that growers can minimize gene flow by screening the seed before planting it in seed-production fields and by being more cautious in their planting process," Heuberger said.

"In comparison, designing strategies to minimize bee pollination between fields can be quite difficult because insect behavior is hard to predict," she said.

Fibre System Plus (30 packets/box)
• Contains 27 herbal extracts to provide thorough, comfortable intestinal cleansing and purification

• Provides the perfect gastrointestinal cleanse to start any nutritional regimen

No comments:

Post a Comment

10 Day Weight Loss Pills

Popular Posts



Curious about what the future holds? Click here to find out how you can receive a 10 minute psychic reading from Psychic Source. - The Best Free Online CalculatorŠ½

Fine Art - Painting Lessons: Real Art!
What is Bio-Farming? Can anyone do it?
Related Posts Plugin for WordPress, Blogger...

My Zimbio
Top Stories
My Zimbio
Top Stories Get 100 FREE Visitors to Your Website!
eXTReMe Tracker
AyurCat for Cat Health Care