© Provided by Xinhua WUHAN, May 17 (Xinhua) Bao Manzhu, a professor of forestry, is intently observing a verdant tree sapling in his planetree breed
WUHAN, May 16 (Xinhua) Bao Manzhu, a professor of forestry, is intently observing a verdant tree sapling in his planetree breeding base at Huazhong Agricultu