What is it about?

Common cell-phones are equipped with sensors that make them spatial referenced systems. By setting three convenient axis of reference we can mimic the relative spatial position of a leaf and collect the angles that define it with a simple gesture. Through a process of calibration in the lab and validation in the field we tested the performance of a device implemented with our software. We highlight the advantages of our methodology against frequently used methods.

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Why is it important?

Leaf functional traits such as leaf angles are indirect links of plant performance. However, measuring leaf angles in the field is a time consuming task. We provide a simple methodology with a free software that overcomes common constraints of frequently used methods. Almost any cell-phone running our application can become a measuring instrument ready to test hypothesis from the leaf to the canopy level. Our work constitutes an excellent tool for educational and scientific purposes.

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This page is a summary of: Simplifying data acquisition in plant canopies‐ Measurements of leaf angles with a cell phone, Methods in Ecology and Evolution, February 2014, Wiley,
DOI: 10.1111/2041-210x.12141.
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