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. 2017 Feb 27;8:252. doi: 10.3389/fpls.2017.00252

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Copyright © 2017 Sadeghi-Tehran, Sabermanesh, Virlet and Hawkesford.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Digital images highlighting the impact of 0 kg ha⁻¹ (N1), 100 kg ha⁻¹ (N2) or 200 kg ha⁻¹ (N3) nitrogen fertilizer application on canopy complexity. Images were acquired 2.5 m above Triticum aestivum L. cv. Soissons canopies.