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The third generation of hybrid rice achieves high yield in China

  • Author:Nancy
  • Source:China Daily
  • Release on:2019-10-23

  The third generation of hybrid rice achieves high yield in China

 Changsha - The third generation of hybrid rice developed by Yuan Longping and his team, the father of hybrid rice, conducted its first public production monitoring from Monday to Tuesday and achieved high yields.

According to the two plots of land located in Qingzhu Village, Hengyang City, Hunan Province, China, the final yield of the tested variety G3-1S / P19 is 1,046.3 kg per mu (about 667 square meters).

Experts agree that rice stems are thick, resistant to fertilizer, lodging, and have large ears and more grains.

Qian Qian, deputy director of the China Rice Research Institute, said: "One of the most important characteristics of the third generation of hybrid rice is its short growth period."

Qian Qichen said that some of the high-yield hybrid rice varieties in China used 160 to 180 days from planting to harvest, while the new varieties were shortened to about 125 days.

Qian Qichen said: "The shorter growth period can reduce the use of pesticides and fertilizers, thereby reducing costs and increasing production efficiency."

Unlike the previous two generations, which required large amounts of water and fertilizer, as well as harsh growth conditions and technical support, third-generation hybrid rice was more easily grown by ordinary farmers.

According to Zhao Bingran of the Hunan Provincial Hybrid Rice Research Center, the soil, altitude and climate of the test site are not “ideal conditions” that have been carefully selected beforehand, but are close to the rice fields of ordinary farmers.

The whole process was organized by the Hunan Agricultural Society under the supervision of experts from the Chinese Academy of Agricultural Sciences, the China Rice Research Institute, the Hunan Provincial Department of Agriculture and Rural Affairs, and several Chinese universities.

At present, the average production of Chinese rice is about 500 kg per mu. Li Xinqi, a researcher at the Hunan Hybrid Rice Research Center, said that ordinary farmers can produce 600 kg to 700 kg of rice per mu by planting some excellent second-generation hybrid rice varieties.

He added: "However, under the same planting conditions and environment, the yield of the third generation hybrid rice can reach 800 kg per mu."

China now does not use 9% of the world's cultivated land to feed 20% of the world's population.

In the 1970s, Mr. Yuan developed the world's first hybrid rice. In the past few years, hybrid rice production has set a number of world records, making a great contribution to food security in China and the world.

Li Zhaoxing said: "We hope to promote the cultivation of the third generation of hybrid rice in China in the short term, increase the grain output by 20 billion kilograms, and apply this technology to sea rice research." "In the medium and long term, we hope to be worldwide. Increase the area planted with hybrid rice by 70%."

At present, Yuan's team is experimenting with nine third-generation hybrid rice combinations, which are expected to achieve commercial seed production in the next three to four years.

Yuan Guoxing said: "The third generation of hybrid rice has comprehensive strength, which can promote the green and sustainable development of rice production in China and improve its quality and yield."