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Published on: October 22, 2018
[Effects of nitrogen supply on Parthenocissus tricuspidata seedling morphology and nitrogen allocation]
Zhong-Qiang Wang1, Liang-Huan Wu, Bo-Feng Xu
1Key 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
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.
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