title: [Effects of nitrogen supply on Parthenocissus tricuspidata seedling morphology and nitrogen allocation].
abstract: With hydroponic culture, this paper studied the effects of different nitrogen (N) supply levels (0, 0.15, 0.3, 0.45, 0.6, 0.75 g N x L(-1)) on the seedling morphology and N allocation of Parthenocissus tricuspidata. The results showed that lower N supply retarded the development of P. tricuspidata seedling's branch; while higher N supply had significant effects in promoting the seedling's early branching and lowering the branching position on the main stem. Supplying higher amount of N increased the plant biomass and the N concentration in root, leaf and stem significantly. Compared with stem and root, leaf had the highest biomass, accounting for 50% of the total biomass, and the highest N accumulation, accounting for 60%-70% of the total accumulated N.
authors.affiliation: Key Laboratogy of Environmental Remediation and Ecosystem Health of Education Ministry, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China. wangzq027@nenu.edu.cn
authors.forename: Zhong-Qiang
authors.initials: ZQ
authors.lastname: Wang
authors.forename: Liang-Huan
authors.initials: LH
authors.lastname: Wu
authors.forename: Bo-Feng
authors.initials: BF
authors.lastname: Xu
authors.forename: Xue-Ling
authors.initials: XL
authors.lastname: Shao
mesh_terms: D018533:Biomass; D009584:Nitrogen / Q000378:metabolism / Q000494:pharmacology*; D018515:Plant Leaves / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D036226:Seedlings / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D027844:Vitaceae / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism
chemical_list: D009584:Nitrogen