China creates world’s first clone-hybrid rice that could double global output
Team developed 6 apomictic rice varieties tested over multiple generations in Hainan and Zhejiang provinces
Chinese researchers have developed a form of hybrid rice that can replicate itself through seeds that are clones, preserving high-yield traits generation after generation, according to the development team.
The scientists say their breakthrough could transform global agriculture by dismantling the biggest barrier to hybrid rice production: the need for farmers to buy expensive new hybrid seeds every season.
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2-metre ‘giant rice’ twice as tall as other varieties nearly ready for first harvest in China
If all rice farmers could plant the new hybrid variant, the world’s rice production could double, according to some industry estimates.
However, the price of hybrid seeds can reach 200 yuan (US$28) per kilogram in China, and even higher in other countries – up to 100 times more than that of regular rice seeds.
Moreover, the offspring of these high-priced seeds lose their hybrid vigour – superior traits from crossbreeding – forcing farmers to buy seeds again every year.
A research team led by Wang Kejian at the Chinese Academy of Agricultural Sciences’ China National Rice Research Institute has developed hybrid rice capable of near-perfect clonal reproduction through apomixis – a process in which seeds develop without fertilisation.