Photo taken on May 5, 2021 shows lilacs in bloom at Nanshan Park in Xining, northwest China's Qinghai Province. Nowadays, lilacs with lush branches and long flowering period are in full bloom in the city of Xining. It's inseparable from the efforts of Zhang Jinmei, director of the Xining forestry science research center, and her team. In 1998, Zhang Jinmei began to cultivate all kinds of lilac saplings. In 2013, she was assigned to Xining forestry science research center. Over the years, Xining has built the only one national lilac germplasm resources bank, with the help of a group of experts including Zhang Jinmei, by conducting lilac resources investigation, collection, selection and breeding. Lilac varieties has increased from 18 to 103 species, with 69 species breedable. (Xinhua/Wu Gang)
