Growth traits of Taxodium ‘Zhongshanshan’ and T. distichum under Different Waterlogging Stress

Experiments were conducted in July 2013 on growth of 2-year seedlings of his study was designed to explore the growth trait of Taxodium mucronatum×T. distichum ‘Zhongshanshan 405’, T. mucronatum×T. distichum ‘Zhongshanshan 406’, T. mucronatum×T. distichum ‘Zhongshanshan 407’, T. mucronatum×T. distichum ‘Zhongshanshan 502’ and their male parent treated by 1/2 flooding (T1), 2/3 flooding (T2) and complete submergence (T3) with normal management as control (CK). Determinations were implemented in October. Results showed that tested seedlings survived after three months of waterlogging stress. Seedlings under T1 and T2 had significantly higher height growth, while that under T2 and T3 had lower ground diameter than that of the control. Seedlings of T. ‘Zhongshanshan’ series under T2 and that of ‘Zhongshanshan 405’ and ‘Zhongshanshan 502’ under T3 had significantly higher height growth than that of T. distichum. Ground diameter growth of CK and T.Experiments were conducted in July 2013 on growth of 2-year seedlings of his study was designed to explore the growth trait of Taxodium mucronatum×T. distichum ‘Zhongshanshan 405’, T. mucronatum×T. distichum ‘Zhongshanshan 406’, T. mucronatum×T. distichum ‘Zhongshanshan 407’, T. mucronatum×T. distichum ‘Zhongshanshan 502’ and their male parent treated by 1/2 flooding (T1), 2/3 flooding (T2) and complete submergence (T3) with normal management as control (CK). Determinations were implemented in October. Results showed that tested seedlings survived after three months of waterlogging stress. Seedlings under T1 and T2 had significantly higher height growth, while that under T2 and T3 had lower ground diameter than that of the control. Seedlings of T. ‘Zhongshanshan’ series under T2 and that of ‘Zhongshanshan 405’ and ‘Zhongshanshan 502’ under T3 had significantly higher height growth than that of T. distichum. Ground diameter growth of CK and T.