日日爽I天天爽天天爽I日韩有码第一页I国产中文字幕在线观看I狠狠躁夜夜a产精品视频I在线免费av播放I麻豆免费视频I91成人免费

Profile: Yuan Longping, father of hybrid rice

Source: Xinhua| 2019-09-26 11:13:09|Editor: huaxia
Video PlayerClose

Yuan Longping, known as China's "Father of Hybrid Rice," inspects the new breed in the fields in Hekou Township in Xiangtan City, central China's Hunan Province, Sept. 29, 2017. (Xinhua/Xue Yuge)

Yuan Longping, father of hybrid rice, has helped China work a great wonder -- feeding nearly one-fifth of the world's population with less than 9 percent of the world's total land. While food shortages have long been consigned to China's past, the famine fighter has a much bigger ambition -- to save the world from starvation.

CHANGSHA, Sept. 26 (Xinhua) -- Yuan Longping, a globally renowned agronomist known for developing the first hybrid rice strains, just celebrated his 90th birthday in accordance with the traditional Chinese age counting system.

Yuan, born in September 1930, has helped China work a great wonder -- feeding nearly one-fifth of the world's population with less than 9 percent of the world's total land.

Getting enough to eat, however, used to be a serious problem in China. "I saw heartbreaking scenes of people starving to death on the road before 1949," recalled Yuan.

It was that year when Yuan applied for Southwest Agricultural College and began his special connection with rice -- a staple food of the Chinese people that would become the focus of his lifelong research career.

A discovery of a peculiar wild rice species by Yuan in the southern island of Hainan in 1970 became the prelude of China's decades of hybrid rice research. Three years later, he cultivated the world's first high-yielding hybrid rice strain with three lines, namely, the male sterile, maintainer and restorer.

Hybrid rice has since been grown across the country and farmers reaped incredible output after switching to Yuan's hybrid varieties.

Hybrid rice recorded an annual yield about 20 percent higher than that of conventional rice strains-- meaning it could feed an extra 70 million people a year. Now its accumulated planting area in China has exceeded 16 million hectares, with the total grain output 658 billion kg in 2018, a nearly fivefold increase from that of 1949.

"China has a large population but little arable land, the only way for us to guarantee our national food security is to increase crop yield," he said.

In 1986, Yuan brought up the hybrid rice breeding strategy -- from the three-line hybrid rice strain to a two-line, and later on to a one-line variety. The two-line technique means that the hybrid rice seeds are cultivated with the male sterile and restorer lines only, which will call for less complicated techniques, save labor and cut cost. Compared with its three-line predecessor, the two-line hybrid rice strain has higher yields and makes use of manpower and material resources more efficient, according to rice experts.

In 1995, local farmers planted 20,000 hectares of two-line hybrid rice in 55 counties on a trial base. The per hectare output reached 8,250 kg, 1,125 kg more than that of the three-line strain. The success established China's leading position in the global field of hybrid rice research.

In 1996, the Ministry of Agriculture formally established a super rice breeding program. Four years later, the first phase of the 10.5 tonnes per hectare target was achieved. The record was shattered three more times with jumps to 12 tonnes in 2004, 13.5 tonnes in 2011 and 15 tonnes in 2014.

Now the target of 18 tonnes per hectare is about to be achieved, according to Yuan.

Wasim Waheed, research manager at a rice farmhouse, works at a rice field in Lahore of Punjab province in Pakistan, on July 10, 2019. A project was started here in 2014 and has been carried out by Guard Agriculture Research and Services in collaboration with Chinese Yuan Longping High Tech Agriculture Company. (Xinhua/Jiang Chao)

FROM CHINA TO THE WORLD

While food shortages have long been consigned to China's past, Yuan, the famine fighter, has a much bigger ambition -- to save the world from starvation.

Since the 1980s, Yuan's team has offered training courses in dozens of countries in Africa, the Americas and Asia -- providing a robust food source in areas with a high risk of famine.

With assistance from Yuan's team, a hybrid crop variety produced a harvest of 10.8 tonnes per hectare in Madagascar this year, far exceeding the yield of local rice. And the average yield of the hybrid rice planted in Kenya is four to five times greater than conventional varieties.

Globally, more than 820 million people were hungry in 2018, according to a UN report. And if hybrid rice is planted in half of the world's 147 million hectares of paddy fields, the additional yield alone can feed another 500 million people, said Yuan.

Yuan's team has continued to make new breakthroughs. Yuan's team was invited to make a trial plantation of the saline-alkaline tolerant rice in experimental fields in Dubai in January 2018, achieving huge success. China's export of saline-alkaline tolerant rice and the technique has been eyed as a way to combat the world's food insecurity.

The saline soil rice R&D team of Yuan Longping work in a test field in Baiyiawati of Yopurga County, northwest China's Xinjiang Uygur Autonomous Region, June 3, 2019. The saline soil rice R&D team of Yuan Longping, the prestigious pioneer of hybrid rice, is expanding its planting scale on the western margin of the Taklimakan desert in Xinjiang Uygur Autonomous Region. (Xinhua/Ren Liying)

FROM HAVING ENOUGH TO EAT TO EATING WELL

Now the focus of Yuan's hybrid rice project has changed from increasing output to green and sustainable development. In September 2017, a strain of low-cadmium indica rice developed by Yuan's team and the Hunan provincial academy of agricultural sciences was able to reduce the average amount of cadmium in rice by more than 90 percent in areas suffering from heavy metal pollution.

"This is a huge breakthrough, and the technology is simple and inexpensive to apply," said Yuan. He is currently working on the third generation of hybrid rice, and striving to gradually replace the three-line and two-line hybrid rice in the next few years.

"Our country has entered a decisive period to complete building of a moderately prosperous society in all respects since the 19th National Congress of the Communist Party of China. To me, that means we are moving from 'having enough to eat' to 'eating well,'" he said.

"I am now in my 90s and hope that I can live to be 100 years old," he said. "I'm confident in the future of my country, and I want to make more contributions to its prosperity."

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011102121384241191
主站蜘蛛池模板: 成人午夜影视 | 热99久久精品 | 婷色在线 | 亚洲爱爱视频 | 国产精品国产三级国产 | 欧美一级片在线播放 | 国产二区视频在线 | 激情欧美一区二区三区免费看 | 日韩精品久久中文字幕 | 人人爽影院| 国产精品黑丝在线观看 | 国产精品九九视频 | 久久国产精品久久久久 | 黄网站免费久久 | 欧美激情视频一区二区三区免费 | 精品一区二区免费视频 | www.黄色| 亚洲高清在线视频 | 最新av在线播放 | 久久综合中文色婷婷 | 中文字幕婷婷 | 国产一区二区在线免费播放 | 黄a在线看 | 91污视频在线观看 | 超碰在线97国产 | 国产精品自产拍在线观看网站 | 日韩在线小视频 | 国产精品福利在线观看 | 免费网站黄 | www.黄色在线| 久久久综合电影 | 欧美天堂久久 | 国产高清在线免费视频 | 国产美女被啪进深处喷白浆视频 | 51久久夜色精品国产麻豆 | 在线观看视频91 | 日韩专区在线 | 最新国产在线 | 亚洲另类交| 精品国产乱码一区二 | 日韩在线视频观看 | 中文字幕二区三区 | 婷婷国产在线 | www天天操| 久久久精品成人 | 亚洲高清在线精品 | 很黄很污的视频网站 | 免费h精品视频在线播放 | 精品一区 在线 | 国产这里只有精品 | 九九九九九精品 | 中文字幕之中文字幕 | 天堂激情网 | 日韩精品免费在线视频 | 99色资源 | 欧美日韩一级久久久久久免费看 | 久久精品999 | 婷婷草| 天天操天天干天天摸 | 日韩天天综合 | 日韩欧美一区二区在线 | 91麻豆国产福利在线观看 | 992tv又爽又黄的免费视频 | www.com久久| 欧美一二三视频 | 欧美国产日韩激情 | 国产中文字幕在线 | 久久不色 | 久久成人精品视频 | 日韩伦理一区二区三区av在线 | 欧美日韩综合在线观看 | 国产高清av免费在线观看 | 狠狠色综合网站久久久久久久 | 日本精品久久久久久 | 操碰av | 久久久久国产精品一区 | 久草视频在线资源站 | 在线观看亚洲精品视频 | 日日爱999| 99成人在线视频 | 日韩一区二区免费在线观看 | 色姑娘综合网 | 国产高清视频免费最新在线 | 88av视频 | 91激情| 91在线播 | 国产成人免费在线 | 男女靠逼app | 久久看片网站 | 久久午夜电影 | 天堂网一区 | 在线观看色网站 | 婷婷久久婷婷 | 国产日韩欧美中文 | 最近最新中文字幕 | 毛片网站在线看 | 精品一二三四视频 | 91视频在线免费下载 | 91av久久 |