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Salt-Tolerant Rice Yield Breaks New Record in China


In China, salt-tolerant rice, better known as “seawater rice,” reached a new high with its average yield surpassing 691.8 kilograms per mu (0.06 hectares). This new record is a major breakthrough in China’s efforts to boost rice output. Developed by the late Yuan Longping, China’s “Father of Hybrid Rice,” seawater rice is a variety of rice that can be cultivated in salty soils near the sea.

According to the Qingdao Saline-Alkali Tolerant Rice Research and Development Center, the Qingdao-based test field of salt-tolerant conventional rice variety yielded 691.8 kilograms per mu, exceeding its previous average output. Salt-tolerant conventional rice is known to survive under 0.4% sodium chloride (NaCl) for the whole growth period.

The test planting field has 0.034% salinity and a pH value of 7.9. During their whole growth period, the tested rice and control varieties were irrigated with 0.4% salt water.

The center also reported that two tested plots yielded 608.9 kg/mu and 691.8 kg/mu respectively. Wan Jili, director of the technology research and development department of the center, stated that reaching 691.8 kilograms per mu is an achievement for salt-tolerant conventional rice and the great potential it has ahead.

In 2017, hybrid saline-alkali tolerant rice that was irrigated with 0.6% salt water yielded 620.95 kg/mu. Wan noted that the high output of the newly-tested salt-tolerant conventional rice variety survives under 0.4% NaCl is quite significant as hybrid rice generally yields more than conventional rice.

In recent years, Chinese scientists made breakthroughs in salt-tolerant rice output. In 2019, it reached 295.9 kg/mu, while in 2021 it rose to 590.6 kg/mu. By the end of 2021, the planting area of China’s salt-tolerant rice reached around 600,000 mu and has been distributed in more than 10 provinces.

According to the center, China’s salt-tolerant rice planting area will exceed 1 million mu.


Hailing from California, USA. Ji-hyun is a Korean American πŸ‡°πŸ‡·πŸ‡ΊπŸ‡Έ with two growing boys who eat their weight in rice each week. After graduating UCLA & becoming a mom she started We Know Rice as a guide for all the students and moms out there looking to cook healthy and filling meals.

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