Seasonal Variation on Ecological Stoichiometry of Carbon, Nitrogen and Phosphorus in <i>Azolla</i> Cultivars

ZHENG Xiang-li; YING Zhao-yang; XU Guo-zhong; WANG Jun-hong; LIU Cen-wei; YU Tao; HUANG Yi-bin

doi:10.19303/j.issn.1008-0384.2018.08.008

Volume 33 Issue 8

Mar. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2018 > 33(8): 814-819

ZHENG Xiang-li, YING Zhao-yang, XU Guo-zhong, WANG Jun-hong, LIU Cen-wei, YU Tao, HUANG Yi-bin. Seasonal Variation on Ecological Stoichiometry of Carbon, Nitrogen and Phosphorus in Azolla Cultivars[J]. Fujian Journal of Agricultural Sciences, 2018, 33(8): 814-819. doi: 10.19303/j.issn.1008-0384.2018.08.008

Citation:

ZHENG Xiang-li, YING Zhao-yang, XU Guo-zhong, WANG Jun-hong, LIU Cen-wei, YU Tao, HUANG Yi-bin. Seasonal Variation on Ecological Stoichiometry of Carbon, Nitrogen and Phosphorus in Azolla Cultivars[J]. Fujian Journal of Agricultural Sciences, 2018, 33(8): 814-819. doi: 10.19303/j.issn.1008-0384.2018.08.008

Citation:

ZHENG Xiang-li, YING Zhao-yang, XU Guo-zhong, WANG Jun-hong, LIU Cen-wei, YU Tao, HUANG Yi-bin. Seasonal Variation on Ecological Stoichiometry of Carbon, Nitrogen and Phosphorus in Azolla Cultivars[J]. Fujian Journal of Agricultural Sciences, 2018, 33(8): 814-819. doi: 10.19303/j.issn.1008-0384.2018.08.008

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Seasonal Variation on Ecological Stoichiometry of Carbon, Nitrogen and Phosphorus in Azolla Cultivars

doi: 10.19303/j.issn.1008-0384.2018.08.008

1.
Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences/Fujian Province Key Laboratory of Agro-Ecological Processes in Hilly Red Soil/Fujian Engineering and Technology Research Center for Hilly Prataculture/Fujian Engineering and Technology Research Center for Circular Agriculture, Fuzhou, Fujian 350013, China
2.
College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350003, China

Received Date: 2018-01-12
Rev Recd Date: 2018-06-14
Publish Date: 2018-08-01

Abstract

Abstract

Ecological stoichiometry of different Azolla cultivars as affected by the seasons was studied. In the lab, 8 Azolla cultivars were used to determine the seasonal variations on yield, contents of C, N, P as well as stoichiometry of the plants. The results showed the yield increased initially, reached a peak as the temperature rose in the summer, and followed by a decline. The highest average annual yield of 244.25 g·tray^-1 was observed on A. microphylla Minyu No. 1 (4087), the second highest of 240.43 g/tray on A. microphylla (4018) A. filiculoides (1001) A. microphylla (4018) MH3-1, and the third of 232.14 g·tray^-1 on A. caroliniana Willd (3001). The C content in them was low at first but gradually increased later to arrive at the highest at 44.40% in the spring. The contents of N and P increased firstly to their maximum, 4.50% and 0.86%, respectively, in the summer, then decreased. The C, N and P contents of A. caroliniana Willd (3001), A. filiculoides lamarck (1001) and A. Mexicana Schlecht et cham (2002) were higher than those of the other cultivars. As the temperature varied, the ratios of C:N, C:P and N:P decreased in the beginning to their lowest values in the summer and followed by an increasing trend. The ratios varied between 7.93-18.20, 41.05-225.18 and 5.16-23.90, respectively, in different seasons. Under the experimental conditions, A. caroliniana Willd (3001) was found superior to others on yield and contents of C, N and P.
- Azolla,
- C,
- N,
- P,
- ecological stoichiometry,
- seasonal variations

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References(15)

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