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. 2014 Dec 17;15(1):1125. doi: 10.1186/1471-2164-15-1125

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© Xing et al.; licensee BioMed Central. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Morphology of adult and juvenile trees in Malus hupehensis . Adult phase at the tree top and juvenile phase at the tree base (A); Adult tree that can flower and juvenile tree that cannot flower (B); Trees of different ages; and (C) Adult leaves at the tree top and juvenile leaves at the tree base (D).