China's hybrid rice set for world record yield
"Given another five years, a yield of 16 tonnes per hectare is achievable," Yuan said.
China, the world's most heavily farmed country, faces problems including limited land and water resources, and rising pollution, making food security a major concern.
The breakthrough of high yield does not necessarily mean bumper national harvests, as large-scale planting of new hybrid rice breeds still faces challenges.
Most farmers are risk-sensitive and quite conservative about trying new breeds, and there are also vested interests among market players which fear the promotion of new breeds may lead to exclusive competition, Xue said.
It is important that the country supports pioneering farmers running large-scale farmland to first experiment with the new breed, while extensive training for farmers is also necessary to facilitate promotion, Guo said.
"There is great potential in advancing the technology to boost the output of rice," Yuan said, "with favorable agricultural policies, China can survive the grain security crisis."
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