日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

GM crops still wait for harvest

Updated: 2011-08-10 09:25

By Zhou Siyu (China Daily)

  Comments() Print Mail Large Medium  Small 分享按鈕 0

GM crops still wait for harvest

A researcher explains genetically modified vegetables to a visitor in Wuhan, Central China's Hubei province. Jing Fei, an expert at Bohai University in Jinzhou, Liaoning province, said the government should postpone commercialization for as long as possible. [Photo / China Daily] 

Limited land, water resources make new grain varieties "nevitable"

BEIJING - Genetically modified (GM) food in China is unlikely to be commercially available for large-scale planting for at least three to five years, said a top agriculture expert.

"Given the constraints on natural resources in China, particularly land and water, the government will definitely need transgenic technology to raise food production in the long term" Huang Jikun, director of the Center for Chinese Agriculture Policy at the Chinese Academy of Sciences, told China Daily in an exclusive interview.

China has increasingly turned to biotechnology to boost grain production.

In 2008, the government launched the National Transgenic New Variety Development Program, with plans to invest 26 billion yuan ($3.8 billion) in biotechnology research by 2020.

The crop closest to commercialization for staple food so far in China is rice, Huang said. GM maize is mainly used as animal feed.

But the new variety must still undergo at least two years of regional trials before it can be approved for commercial planting, under national regulations.

"The problem is that the Ministry of Agriculture does not have clear regulations on the procedures for regional trials of GM food crops," Huang said. That makes it difficult to predict a timeframe for commercialization.

In 2009, the Ministry of Agriculture issued safety certificates for production of two GM field crops: rice and maize. The move prompted heated debate in the domestic media, which raised public concern about food safety.

Fan Shenggen, director-general of the International Food Policy Research Institute, said there was still no evidence to suggest that GM food is harmful to human health.

However, the new GM crops do have an impact on the ecology and biological diversity, he said.

"We need to be cautious so as to make the maximum use of (GM plants') advantages while minimizing their negative effects on the environment," Fan said.

"China has great potential for further development in GM technology," he added.

GM technology does have advantages. It can boost production, reduce the use of chemicals and enhance nutrition, Huang said.

"Advanced biotechnology will help guarantee China's food security and benefit both farmers and consumers," he said.

To delay the commercialization of GM foods might also dampen scientists' enthusiasm for research and development, he said.

Still, some experts take a more guarded view of GM crops.

Jing Fei, a seed expert at Bohai University in Northeast China's Liaoning province, said there was no need for the country to approve the commercialization of GM food over the next few years.

While there was no proof that GM foods are harmful to human health, current medical technology can't absolutely guarantee the safety of these crops, Jing said.

"The government should postpone commercialization for as long as possible. This would not affect scientists, as long as the government continues its support for GM technology research," he said.

"With the current technology, China's food production can easily meet demand in the near future," Jing added.

But he admitted that given limited land and water resources, it was inevitable that China will start the cultivation of GM foods.

China's grain production rose for seven consecutive years through 2010. Last year's harvest was 546 million tons.

Weather permitting, the country can expect a bumper harvest this year, according to the National Development and Reform Commission, the top economic planner.

So far, the government has issued safety certificates for production of eight GM plants, including cotton, rice, maize, tomatoes and sweet peppers.

Cotton is the only plant allowed for commercial farming.

 

主站蜘蛛池模板: 婷五月天| 青草综合 | 综合免费视频 | 国产一区二区色 | 天天干天天做 | 大奶子在线观看 | 六月丁香激情综合 | а天堂中文在线资源 | wwwwww色 | 超碰婷婷| 免费中文视频 | 今天免费高清在线观看国语 | 午夜影视av | 欧美一级在线视频 | 一区二区三区在线看 | av在线大全| 亚洲精品一级片 | 欧美高清视频一区二区三区 | 99视频免费在线观看 | 黄色a视频| 婷婷五月情 | 456亚洲视频 | 日韩中文字幕影院 | 国产精品久久久久久久天堂第1集 | 欧美视频一区二区在线 | 91成人黄色| 99欧美| 免费在线成人网 | 国产一级淫片a视频免费观看 | 欧美午夜激情影院 | 一区二区三区视频在线免费观看 | 欧美日韩亚洲系列 | 国产中文字幕在线观看 | 男人天堂手机在线 | 成人免费xxxxxx视频 | 一级免费黄色片 | 黄色一级a毛片 | 亚洲国产精品尤物yw在线观看 | 超碰97自拍 | 精品国产一区二区三区久久久蜜月 | 日韩av免费在线 |