Local villagers put newly harvested rice into a machine for preliminary sieving in Nansa Village, Hani, Yi and Dai Autonomous County, Yuxi City, Yunnan Province, Oct. 24, 2021. (Photo: China News Service/ Li Jiaxian)

The yield of Yunda 107, a perennial rice variety planted on terraces in Nansa village, was tested on Sunday. Perennial rice can be harvested for successive regrowth seasons across years, maintaining a relatively stable yield and greatly reducing labor input.