Abstract
Key message
The Cohen method of measuring vessel-length distributions is much more accurate than the DD algorithm on integer values, which should be abandoned. More research is needed to get the real distribution of vessel length.
Abstract
Scientists have been measuring the vessel length of plants for more than 50 years. The method involves infusing stem or segments with a visible substance that completely fills vessels cut open at the infusion surface. The number of infused vessels is then quantified versus distance from the infusion surface. A theoretical model is then used to convert the counts of infused vessels to a vessel length distribution. Over the years the methods and theory have changed greatly. The purpose of this review is to give the reader an understanding of why vessel length is important and to provide a theoretical basis for selection of the best method and theory to arrive at vessel length data.
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Acknowledgments
The authors wish to acknowledge the following grants that made this research possible: Natural Science Foundation of China (Grant No. 31270646) to J.C. and the “thousand talent program” grants to M.T.T.
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Communicated by R. D. Guy.
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Cai, J., Tyree, M.T. Measuring vessel length in vascular plants: can we divine the truth? History, theory, methods, and contrasting models. Trees 28, 643–655 (2014). https://doi.org/10.1007/s00468-014-0999-9
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DOI: https://doi.org/10.1007/s00468-014-0999-9