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. 2018 Aug 6;9:1817. doi: 10.3389/fmicb.2018.01817

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Copyright © 2018 Wang, Wang, Zhou, Yang, Chen and Zhang.

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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Principle component analysis (PCA) of samples. PC1, principle component 1; PC2, principle component 2; CK, control (no LP addition); LP, Lactobacillus plantarum; 1, the material was directed cut; 2, the material was wilted for 12 h; 60, ensiled for 60 days; 120, ensiled for 120 days; CK-1-60, control was directed cut and ensiled for 60 days, the same with other groups.