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. 2016 Mar 4;7:224. doi: 10.3389/fpls.2016.00224

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Copyright © 2016 Mesquita, Zambrosi, Tanaka, Boaretto, Quaggio, Ribeiro and Mattos.

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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Leaf water potential (A), whole-plant leaf specific hydraulic conductance (B), stomatal conductance (C), transpiration (D), CO₂ assimilation (E) and instantaneous carboxylation efficiency (F) in sweet orange trees grafted on Swingle or Sunki rootstocks grown in nutrient solution with varying concentrations of boron for 130 days. Asterisks compare rootstocks in a given boron concentration, whereas lowercase letters indicate significant difference between boron concentrations in a given rootstock (Tukey test at p < 0.05).