NEWS 2017
Effects of Shading and Nitrogen Addition on the Growth and C-N Balance of Fritillaria unibracteata
GUO Hai-Xia1, XU Bo3, SHI Fu-Sun2, WU Yan2
Bulletin of Botanical Research 37(5): 738-743 (2017)
http://dx.doi.org/10.7525/j.issn.1673-5102.2017.05.014
1Chengdu Normal University, Chengdu 611130, Sichuan, China
2Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
3Aba Teachers University, Wenchuan 623002, Sichuan, China
Abstract
In order to check how Fritillaria unibracteata Hsiao et K. C. Hsia adjusts to resources variation, a controlled field experiment was set, and F. unibracteata’s responses of growth and C-N balance to shading and nitrogen addition were examined. F. unibracteata was highly responsive to shading and nitrogen addition. Nitrogen content in leaf and root showed significant increase after shading and nitrogen addition, which induced (P<0.05) under shading treatment, while there was no obvious change of R, under-addition treatment. Finally, there were significant correlations (P<0.01) between nitrogen content, C:N and total plant biomass, leaf-root biomass ratio. Therefore, C-N balance in F. unibracteata would be a better index of resource strategy.
