www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
China / Innovation

Hybrid rice varieties face new scrutiny

By XU WEI (China Daily) Updated: 2015-04-15 06:23
Hybrid rice varieties face new scrutiny

Yuan Longping, agricultural scientist and Yuan Longping High-Tech Agriculture Co founder? [Photo/China Daily]

China's agricultural authority is set to conduct more comprehensive assessments of hybrid rice varieties following a massive crop failure in Anhui province caused by abnormal weather conditions and rice disease.

The evaluations will focus on high yields and also the adaptability of varieties to different growing environments, including resilience to disease and insects, according to Zhang Taolin, vice-minister of agriculture.

"There will also be evaluations of the efficiency of fertilizers and the grain quality of hybrid rice," he said at a news conference at the State Council Information Office on Tuesday.

Hybrid rice seed provider Yuan Longping High-Tech Agriculture Co said on Monday that it will stop selling its Liangyou 0293 variety following widespread low yields or crop failure.

This affected more than 650 hectares of rice fields in six cities in Anhui in October.

The company blamed abnormal weather conditions, including low temperatures and persistent rain in June and July last year, for the crop failure as this variety is susceptible to rice blast fungus disease in such conditions.

Inadequate prevention measures also accounted for the crop failures, it said.

Agricultural scientist and company founder Yuan Longping, widely dubbed the "father of hybrid rice", said the crop failure in Anhui cannot serve as evidence that there are problems in all hybrid rice varieties.

"There is a chance that the Liangyou 0293 variety could have suffered a setback in quality after years of cultivation. There could also have been disease mutations," he told Hunan Daily.

"The average yield of hybrid rice per mu (0.07 of a hectare) has reached more than 1,026.7 kg to date. Even if the yield is reduced to 70 to 80 percent of that amount ... we can still improve the yield of the country's rice fields remarkably," he said.

Zhang, the vice minister, said hybrid rice remains an important part of the national strategy to ensure grain security.

"We need a variety that can adapt to different cultivation environments. However, evaluation of a variety is usually conducted in a specific area. If that variety is cultivated elsewhere, without adequate assessment, defects in the variety will be exposed," he said.

The Anhui crop failure has infuriated farmers, with many blaming the company for misleading advertisements. In Wuhe county, rice farmers were hit hard, with yields plummeting from an expected 500 kg to 50 kg per mu or even to zero.

The company said the farmers' losses will be covered by insurance and it will meet with them to discuss further measures.

As of last year, hybrid rice accounted for 30 percent of China's rice-growing area, with more than 9.07 million hectares of hybrid rice fields nationwide.

Highlights
Hot Topics
...
主站蜘蛛池模板: 亚洲欧美日韩国产专区一区 | 国产精品亚洲视频 | 国产成人精品视频一区二区不卡 | 国产网站91 | 中文字幕视频网站 | 精品色视频 | 欧美巨大精品videos | 成人久久在线 | 亚洲 欧美 激情 另类 自拍 | 亚洲欧美日韩国产综合 | 欧美国产视频 | 美女被免费网站在线软件 | 国产一级一级片 | 欧美性色欧美a在线播放 | 久夜色精品国产一区二区三区 | 日韩国产成人资源精品视频 | aaa级精品久久久国产片 | 91亚洲成人 | 欧美亚洲日本 | 国产一区高清 | 国产露脸3p普通话 | 日本三级韩国三级在线观看a级 | 亚洲福利影院 | 国产精品亚洲综合天堂夜夜 | 全部精品孕妇色视频在线 | 欧美视频一区二区三区精品 | 免费的三级网站 | 国产亚洲精品一区久久 | 日本欧美一区二区三区片 | 日韩中文字幕在线视频 | 精品国产欧美一区二区最新 | 在线免费观看亚洲视频 | 欧美理论片在线观看一区二区 | 欧美成人精品 | 亚洲精品久久九九热 | 亚洲国产成人久久综合一 | 国产一区二区精品在线观看 | 亚洲精品系列 | 男人的天堂亚洲 | 成年人精品视频 | 绝对真实偷拍盗摄高清在线视频 |