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Articles

Variations in patterns of internode and branch lengths for several bamboo species

Pages 1088-1099 | Received 04 Dec 2019, Accepted 21 Sep 2020, Published online: 14 Oct 2020
 

Abstract

Bamboos are an important plant resource both economically and ecologically and it is, therefore, important to fully understand their biosystem characteristics. In this study, the variations in patterns of internode and branch lengths for twelve bamboo species were examined. The results indicated that node distribution along the culm is not always dense near the ends of the culm and sparse in the middle part of the culm. There were variations in the position of maximum internode length among the 12 bamboo species. For most bamboo species, maximum internode lengths correlated with total culm heights. Similar relationships existed between log (node number) and log (accumulated internode length) at the individual and species levels, and these relationships can be fitted by a linear or sigmoid function of the third-order function. Scaling exponents changed gradually during internode growth for individuals. The relationships between log (average of internode length) and log (variance of internode length) were complicated between individuals and species. The frequency distribution of bamboo branches followed power laws, but the exponents varied with species and individuals. The results may provide a new understanding of the optimal design in the unique biosystem of bamboos.

Acknowledgments

The author thanks Wenjie Ding, Yadong Yan, and Dr. Xiangtao Zhu for the fieldwork at Zhuji County and Jianyuan Feng, Juanjuan Hao, and Prof. Yulong Ding for the fieldwork at Nanjing City. The anonymous reviewers’ suggestions greatly improved the manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This study was partially supported by the USDA Mc-Stennis project (1008643) and NSF REU.

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