欧美精品在线第一页,久久av影院,午夜视频在线播放一三,久久91精品久久久久久秒播,成人一区三区,久久综合狠狠综合久久狠狠色综合,成人av一区二区亚洲精,欧美a级在线观看

        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: 男人的天堂一区二区| 亚洲欧美v国产一区二区| 国内偷拍一区| 久久国产麻豆| 国产日韩精品一区二区| 国产精品久久91| 久久久久国产精品一区二区三区| 在线视频国产一区二区| 日韩精品一区二区三区免费观看视频| 国产区二区| 狠狠色狠狠综合久久| 国产盗摄91精品一区二区三区| 久久国产精久久精产国| 国产69精品久久久久9999不卡免费 | 欧美日韩一卡二卡| 日韩中文字幕久久久97都市激情| 爱看av在线入口| 亚洲国产精品精品| 国产精品一二三区免费| 亚洲欧美v国产一区二区| 久久九九国产精品| 欧美精品日韩精品| 欧美一区二区三区三州| 国产99久久九九精品| 婷婷嫩草国产精品一区二区三区| 午夜精品一二三区| 国产日韩麻豆| 国产一区二区三区黄| 国产偷国产偷亚洲清高| 亚洲第一天堂无码专区| 国产精品欧美久久久久一区二区| 日韩国产精品久久久久久亚洲| 久久激情影院| 88国产精品欧美一区二区三区三| 精品香蕉一区二区三区| 国产91综合一区在线观看| 日韩精品中文字幕在线| 亚洲欧美另类久久久精品2019| 欧美网站一区二区三区| 91热精品| 国产69精品福利视频| 午夜色大片| 国产69精品久久久久9999不卡免费 | 国产精品一二二区| 国产一区二区三区的电影| 国产欧美日韩一区二区三区四区| 国产精品v欧美精品v日韩| 美女被羞羞网站视频软件| 日韩欧美国产另类| 国产精品一区在线观看| 国产精品欧美一区二区三区| 国产欧美一区二区精品久久久| 午夜毛片在线看| 一区二区三区欧美日韩| 欧美日韩一级二级三级| 国产亚洲久久| 国产精品一二二区| 日韩av在线网址| 欧美在线免费观看一区| 在线观看v国产乱人精品一区二区| 国产91九色在线播放| 国产69精品久久久久app下载| 国产黄色一区二区三区| 福利片91| 性old老妇做受| 国产一区二区三区小说| 欧美色综合天天久久综合精品| 91超薄丝袜肉丝一区二区| 91久久国产视频| 欧美乱战大交xxxxx| 国产理论片午午午伦夜理片2021 | 国产区一区| 精品国产区一区二| 国产一区日韩一区| xxxx18hd护士hd护士| 日本美女视频一区二区| 亚洲一区二区三区加勒比| 国产乱对白刺激在线视频| 99国产精品九九视频免费看| 国产精彩视频一区二区| 亚洲一区精品视频| 国产精品视频一二区| 午夜国内精品a一区二区桃色| 亚洲区在线| 国产精品9区| 亚洲欧美一卡| 午夜黄色大片| 亚洲乱亚洲乱妇50p| 日本99精品| 美女直播一区二区三区| 国产在线拍揄自揄拍| 91精品第一页| 国产精品久久国产三级国电话系列| 国产日韩欧美一区二区在线观看| 久久久久久久久久国产精品| 91亚洲欧美强伦三区麻豆 | xxxxhd欧美| 偷拍精品一区二区三区| 欧美极品少妇| 久久五月精品| 99久久国产综合精品女不卡| 99精品视频一区| 日韩一级片在线免费观看| 亚洲精品无吗| 午夜色大片| 中文字幕天天躁日日躁狠狠躁免费 | 国产女人与拘做受免费视频| 一区二区三区日韩精品| 日本一区二区免费电影| 91久久久爱一区二区三区| 久久久精品a| 午夜看片网站| 综合欧美一区二区三区| 国产伦精品一区二区三区免| 欧美日韩精品在线一区| 中文字幕一区一区三区| 一区二区三区国产精品| 躁躁躁日日躁网站| 国模少妇一区二区三区| 99久久国产综合精品尤物酒店| 日韩午夜一区| 国产午夜精品理论片| 91精品国模一区二区三区| 午夜影院啊啊啊| 精品国产乱码一区二区三区a| 一区二区三区在线影院| 国产69精品久久久久app下载| 国产在线欧美在线| 精品国产一区二区三| 日本一区二区三区中文字幕 | 99国产精品一区| 国产一区二区在线观看免费| 狠狠色噜噜狠狠狠狠综合久| 中文乱码在线视频| 国产69精品久久99不卡免费版 | 国产精品你懂的在线| 中文字幕欧美日韩一区| 麻豆天堂网| 欧美二区精品| 国产精品网站一区| 国产精品亚洲а∨天堂123bt| 99精品国产99久久久久久97 | 欧美久久久一区二区三区| 性色av色香蕉一区二区| 四虎影视亚洲精品国产原创优播| 免费看欧美中韩毛片影院| 国产主播啪啪| 国产午夜精品一区二区三区四区 | 国产女性无套免费看网站| 性欧美精品动漫| 久久久999精品视频| 精品综合久久久久| 一区二区在线视频免费观看| 国产女性无套免费看网站| 日韩亚洲欧美一区二区| 国产精品日韩三级| 91久久国产露脸精品国产| 国产97在线播放| 久久aⅴ国产欧美74aaa| 欧美一区二区三区性| 国产的欧美一区二区三区| 亚洲国产精品激情综合图片| 91社区国产高清| 91精品中综合久久久婷婷| 国产精品一区不卡| 欧美乱码精品一区二区三| 亚洲色欲色欲www| 91国偷自产一区二区介绍| 一区二区三区欧美精品| 96精品国产| 精品香蕉一区二区三区| 国产高清在线一区| 国产在线播放一区二区| 91国产一区二区| 99精品一区二区| 国产一级片一区| 久久91精品国产91久久久| 99精品一区| 国产精品二区一区二区aⅴ| 91视频国产一区| 欧美精品在线观看视频| 91丝袜诱惑| 国产男女乱淫视频高清免费| 少妇高潮ⅴideosex| 亚洲福利视频一区| 亚洲欧美日本一区二区三区| 91影视一区二区三区| 美国三级日本三级久久99 | 日韩av在线高清| 日本一区二区在线观看视频| 国产精品免费不卡| 91理论片午午伦夜理片久久 | 国模一区二区三区白浆| 免费看欧美中韩毛片影院| 李采潭无删减版大尺度| 久久精品欧美一区二区| 年轻bbwbbw高潮| 亚洲国产日韩综合久久精品| 国产精品免费不卡| 日本神影院一区二区三区| 国产精品伦一区二区三区在线观看| 91一区二区三区在线| 国产999精品久久久久久绿帽| 2023国产精品自产拍在线观看| 亚洲第一天堂无码专区| 日韩av三区| 欧美色综合天天久久| 国产高清一区在线观看| 日本午夜精品一区二区三区| 国产在线不卡一| 99久久免费精品视频| 538国产精品| 国产精品麻豆一区二区三区| 人人要人人澡人人爽人人dvd| 国产女性无套免费看网站| 国产伦精品一区二区三区免费下载| 亚洲一区二区三区加勒比| 久久午夜鲁丝片| 狠狠躁夜夜躁| 国产1区在线观看| 夜夜夜夜曰天天天天拍国产| 国产69精品久久久久777| 国产一区二区伦理片| 久久一二区| 日韩欧美多p乱免费视频| 国产精品久久二区| 在线国产精品一区| 91狠狠操| 午夜一区二区三区在线观看| 狠狠色噜噜狠狠狠狠2021免费| 国产精品免费观看国产网曝瓜| 欧美一区二区三区白人| 中文字幕av一区二区三区高| 麻豆国产一区二区| 精品国产一区二区三区高潮视| 日韩国产不卡| 国产一区二区三级| 国产区精品| 欧美系列一区二区| 欧美日韩一二三四区| 国产精品人人爽人人做av片| 国产在线视频99| 国产精品剧情一区二区三区| 国产白丝一区二区三区| 欧美日韩精品中文字幕| 狠狠色噜噜狠狠狠狠2021免费|