Effects of different truncation treatments on the stoichiometry of C, N and P in leaves of <i>Dendrocalamus latiflorus</i>

Tong Long; Zhang Lei; Li Bin; Geng Yanghui; Xie Jinzhong; Zhang Wei; Chen Lijie

doi:10.13332/j.1000--1522.20180216

Journal of Beijing Forestry University > 2018 > 40(11): 69-75. > DOI: 10.13332/j.1000--1522.20180216

Tong Long, Zhang Lei, Li Bin, Geng Yanghui, Xie Jinzhong, Zhang Wei, Chen Lijie. Effects of different truncation treatments on the stoichiometry of C, N and P in leaves of Dendrocalamus latiflorus[J]. Journal of Beijing Forestry University, 2018, 40(11): 69-75. DOI: 10.13332/j.1000--1522.20180216

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Effects of different truncation treatments on the stoichiometry of C, N and P in leaves of Dendrocalamus latiflorus

1.
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China
2.
Chongqing Academy of Forestry, Chongqing 400036, China
3.
Chongqing Zhongxian Forestry Bureau, Zhongxian 404300, Chongqing, China

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Received Date: July 11, 2018
Revised Date: September 02, 2018
Published Date: October 31, 2018

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Abstract

Abstract

ObjectiveObtruncation is a kind of man-made disturbance during the Dendrocalamus latiflorus culture and management. The top edge of bamboo can be weakened and the yield of commercial bamboo leaves of single stand bamboo can be increased through the truncation treatment. The purpose of this paper is to further enrich the research theory of truncation treatment of D. latiflorus and provide scientific basis for its production and operation.
MethodIn this study, D. latiflorus as the test material, the chemical measurements of carbon (C), nitrogen (N) and phosphorus (P) of 4 kinds (CK: no truncation/control, light truncation, medium truncation, heavy truncation) of 1-3 years old D. latiflorus were studied, in order to investigate the response of stoichiometry of D. latiflorus leaves by different truncation intensities.
ResultThe results showed that the contents of total C, N, P and C/N, C/P, N/P values of 1-3 years old D. latiflorus leaves were significantly different under the three truncation treatments compared with control. Among them, the content of C of D. latiflorus leaves under three truncation treatments and control were displayed in the order of medium truncation > light truncation > heavy truncation > no truncation, and the maximum value was 1.24 times of the minimum value. Under the medium truncation treatment, the contents of C, N and P of 1 year old D. latiflorus leaves were 6.8% higher, 11.5% higher and 1.5% lower than control, respectively. For the 2 years old D. latiflorus, the C/P value of the three truncation treatments was 1.2% higher, 6.8% higher and 5.0% lower than control, respectively. The N/P value range of no truncation treatment D. latiflorus leaves was 13.65-14.19, and the average value was 13.99, and indicating that the growth of D. latiflorus was mainly restricted by N elements. With the strength of truncation treatment was increased, N contents of 1-3 years old D. latiflorus leaves increased significantly compared with no truncation treatment.
ConclusionIt is showed that the stoichiometry of C, N and P in leaves of D. latiflorus can adapt to the truncation treatment to some extent, and the moderate truncation treatment can improve the productivity of D. latiflorus, and plays a positive role on its growth.
- Dendrocalamus latiflorus,
- truncation treatment,
- C,
- N,
- P,
- stoichiometry

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References

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