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[report整理] SENEWS-2011-03-01

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[Homework]SENEWS-2011-03-01

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This is the VOA Special English Agriculture Report.


White rice is the world's most popular form of rice. But its goes through a miling process that removes many nutrients. As a result, people who eat a poor diet base on the white rice may not get enough vItamin A.


Each year, an estimated 250,000 to half of million children go blind from vitamin A deficiency. The World Health Organization says half of them die within a year of losting their sight. Vitamin A deficiency is a problem especially in Africa and Southeast Asia.


So scientists thought the answer. They combined white rice with plant compance that the body can change into vitamin A. The rice contains beta carotene and other carotenosis. These plant colorings give the rice a golden color. The scientists also thought a plant to give a way this golden rice for free to poor farmers. But the rice is genetic engineered, they say can not be made using traditional methods to breed plants. The scientists work for 10 years until 1990 to develop the technology to aid genes to rice. That took 9 more years to get the genes they wanted into the seed. The first field tests took place in 2004 at ** state University in the United States.


Golden rice is currently being tested in Philipines. It is not vaulable for gentle use. ** says rice with two add genes would be available in 2013. One gene comes from maize or corn, and the other from a soil bacterium. Mr.** retired from the Swiss Federal Institute of Technology. He blames the delays on two many roots about genetic modified crops. Opponents say such crops may cause environmental damage by breeding with conventional plants. Opponents also question the safty of biotech foods. Mr. ** says golden rice has never been chosen to be an save for environment or people. Many agricultural organization support the project. But they are critics including researches for the environmental group Green Peace. Several months ago, they question whether golden rice could do much for **. They said releasing genetically modified rice in Asia, could permanently change traditional rice varieties for ** and of rice.


And that's the VOA Special English Agriculture Report, written by Jerrly Wason. For more news about rice research go to voaspecialenglish.com. I'm Bob Doughty.



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