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Experts measure area of saline-tolerant rice in Qingdao, east China's Shandong Province, Sept. 28, 2017. Four types of saline-tolerant rice registered an estimated output of between 6.5 to 9.3 tonnes per hectare, at Qingdao saline-alkali tolerant rice research and development center.(Xinhua/Guo Xulei)