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. 2018 Oct 16;9:1499. doi: 10.3389/fpls.2018.01499

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Copyright © 2018 Wang, Zhang, Dong, Fu, Hu and Zhao.

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) and the copyright owner(s) 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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Classification for the 24 O. fragrans cultivars based on flower color. (A) Flower color distribution of the 24 cultivars based on a^∗, b^∗, and L^∗ values. (B) Flower color distribution of the 24 cultivars based on bivariate a^∗ and b^∗ values. (C) Dendrogram of hierarchical cluster for the 24 cultivars based on L^∗, a^∗, b^∗, C^∗, and h. The abscissa expresses the Euclidean distances and the ordinate denotes the sample numbers.