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. 2021 May 12;12:629361. doi: 10.3389/fpls.2021.629361

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Copyright © 2021 Gong, Diao, Zhu, Umer, Zhao, He, Lu, Yuan, Anees, Yang, Kaseb and Liu.

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 of volatile organic compounds (VOCs) detected by GC–MS and analysis of differential metabolites. (A) Pie chart of the classification of 74 VOCs. (B) Venn diagram of the number of differential accumulation VOCs by comparing KL1 vs. KL2, KL2 vs. KL3, and KL3 vs. KL4. (C) Hierarchical clustering heat map of 23 differential accumulation VOCs in 12 samples, KL1, KL2, KL3, and KL4 represent the samples at 10, 18, 26, and 34 DAP, and -1, -2, and -3 represent different samples from the same period.