Double-cropping hybrid rice sets new yield world record

Source:Global Times- Xinhua Published: 2016/11/20 16:00:42

Yuan Longping, known as the father of hybrid Chinese rice, has set a new world record by achieving an annual yield of 1,537.78 kilograms of rice per mu (0.067 hectare) in pilot field in Xingning, South China's Guangdong Province, the local authorities announced on Saturday. 

The yield of the second crop of rice was 705.68 kilograms of rice per mu, and together with the 832.1 kilograms per mu from the first crop in July, the double-cropping super rice has set a record-high annual output of 1,537.78 kilograms per mu, reported the Guangdong-based Nanfang Daily on Sunday. 

The project was jointly launched in 2015 by the China National Hybrid Rice R&D Centre in Central China’s Hunan Province, directed by Yuan; the Guangdong provincial agriculture department; South China Agricultural University; and the Xingning city agricultural bureau, the Nanfang Daily said.

The project aimed achieve the goal of an annual output of 1500 kilograms of rice per mu in the three years from 2015, said the Nanfang report.  

The record-high yield in Xingning is the only key scientific project focused on double-cropping rice, among Yuan’s 38 demonstration super rice fields across the country, according to the Nanfang Daily.

The annual yield of double-cropping rice is equal to that produced over three seasons in the past, marking a big breakthrough, Luo Xiwen, an academician at the Chinese Academy of Engineering, was quoted as saying by the Xinhua News Agency, 

"This is the fifth generation of hybrid rice technology," Yuan told Xinhua. "The quality of the rice is as good as Japan's renowned Koshihikari rice."

Additionally, Yuan, 86, also head of the sea-rice research and development center, delivered a speech at the World Life Science Conference in Beijing on November 1, saying that a newly founded research center in Qingdao, East China's Shandong Province, planned to expand the yield of sea-rice to 200 kilograms per mu within three years, Xinhua previously reported .

The Qingdao research center will use gene sequencing to cultivate new, high-yield strains of sea-rice that can grow in saline water, but the technology is a challenge, Yuan said.

He noted that China has more than 1 billion mu of saline-alkali land that has not been cultivated so far, together with some 10 million mu land in intertidal zones. "The cultivation of sea-rice is very promising."

The target yield of sea-rice is 300 kilograms per mu, he revealed.

Global Times- Xinhua


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