Environmental Effects on Growth and Ecological Stoichiometry of <i>Azolla</i>

YU Tao; ZHENG Xiang-li; XU Guo-zhong; WANG Jun-hong; HUANG Yi-bin

doi:10.19303/j.issn.1008-0384.2019.02.016

Volume 34 Issue 2

Apr. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(2): 241-246

YU Tao, ZHENG Xiang-li, XU Guo-zhong, WANG Jun-hong, HUANG Yi-bin. Environmental Effects on Growth and Ecological Stoichiometry of Azolla[J]. Fujian Journal of Agricultural Sciences, 2019, 34(2): 241-246. doi: 10.19303/j.issn.1008-0384.2019.02.016

Citation:

YU Tao, ZHENG Xiang-li, XU Guo-zhong, WANG Jun-hong, HUANG Yi-bin. Environmental Effects on Growth and Ecological Stoichiometry of Azolla[J]. Fujian Journal of Agricultural Sciences, 2019, 34(2): 241-246. doi: 10.19303/j.issn.1008-0384.2019.02.016

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Environmental Effects on Growth and Ecological Stoichiometry of Azolla

doi: 10.19303/j.issn.1008-0384.2019.02.016

1.
College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350003, China
2.
Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China
3.
Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China

Received Date: 2018-10-31
Rev Recd Date: 2018-12-23
Publish Date: 2019-02-28

Abstract

Abstract

Objective To provide the fundamental scientific information on Azolla for preservation and study the effects of environmental conditions on the growth and ecological stoichiometry of the aquatic plants in the ecosystem. Method Using a soil water culture under a net cover (SWN) or a nutrient water culture in a greenhouse (NWG), the biomasses and ecological stoichiometric characteristics on C, N and P of 8 varieties of Azolla, including A. filiculoides lamarck, A. Mexicana Schlecht et cham, A. caroliniana Willd, A. microphylla Kaulf, A. imbricate (Roxb.) Nakais, A. pinnata R. Brown, A. microphylla Kaulf and A. microphylla Minyu No.1, were compared. Result In SWN, the biomasses and contents of C and N of all 8 varieties were higher than those in NWG, but the P contents were lower. The C:P and N:P ratios of the plants in SWN were higher than those in NWG, whereas, the C:N ratios were similar. Since the N:P ratios of all plants grown in either SWN or NMG were below 14, N was presumably the primary factor affecting the plant growth. Conclusion Cultivation in SWN appeared to be more conducive than NWG to the growth of Azolla plants. In addition, N seemed to be a crucial nutrient, more so than C or P, for the growth of Azolla.
- growth environment,
- Azolla,
- C,
- N,
- P,
- ecological stoichiometry

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References(19)

References

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