Sentences with phrase «weedy rice»

With the help of modern genetic technology and the resources of the International Rice GeneBank, which contains more than 112,000 different types of rice, evolutionary biologist Kenneth Olsen, PhD, associate professor of biology in Arts & Sciences at Washington University in St. Louis, has been able to look back in time and ask whether the same mutations underlay the emergence of the same traits in both cultivated and weedy rice.

Olsen and postdoctoral research fellow Cindy Vigueira sample weedy rice in the WUSTL greenhouse for DNA extraction and analyses.

Even though both weedy strains arose in Asia, he says, weedy rice became a problem in southeast Asia only in the last few decades.

Because both cultivated rice and weedy rice tend to self - fertilize, there hasn't been a lot of gene flow going on in rice in general, Olsen says.

In the U.S. weedy rice is increasingly combatted by growing herbicide resistant crop strains, Olsen says.

«We used weedy rice as a model plant.

This video provides recommendations on how to control weedy rice, from results of collaborative research studies among IRRI, the Rice Research and Development Institute in Sri Lanka, University of Ruhuna, and the Irrigated Rice Research Consortium funded by the Swiss Agency for Development and Cooperation.

If the provitamin A trait is transferred by out - crossing from GR2E rice into other cultivated or weedy rice, progeny plants will not exhibit an altered selection advantage that could cause them to become more weedy or invasive in managed or unmanaged ecosystems.

Not exact matches

«The worst thing that could possibly happen is that the trait can transfer to other rice varieties or weedy relatives thru cross-contamination once the field testing is approved.

Farmers are worried that the trait can transfer to other rice varieties or weedy relatives thru cross-contamination once the open field testing is approved.

One weedy strain resembles an Asian rice variety grown only in a small part of the Indian subcontient and the other strain resembles a rice grown in the tropics.

The mass deployment of scuba rice is the culmination of more than a decade of research for Mackill, who long ago identified a gene in rice's DNA, known as Sub1A, that seemed to strongly influence how a weedy but flood - resistant rice variety in India — rejected because it had a low yield and poor taste — could survive so much longer than normal varieties.