TABLE 2.

Ranking of Importance of 36 identified herbivore-induced volatile compounds (HIPV) based on maize genotype and rhizosphere microbiome treatment.

Ranking	HIPV	MDA
1	Methyl salicylate	39.084279
2	(E)-4,8-dimethyl-1,3,7-nonatriene*	26.724274
3	Caryophyllene	24.240676
4	trans-Geranylgeraniol	23.811890
5	Linalool	22.880034
6	β-Myrcene	22.070551
7	trans-α-Bergamotene	19.432684
8	epi-Bicyclosesquiphellandrene	16.791102
9	Germacrene D	16.057696
10	D-Limonene	15.561633

A Random Forest decision tree was used and rankings were determined using Mean Decrease Accuracy (MDA). *Previously identified as (E)-2-Butenoic acid, 2-(methylenecyclopropyl)prop-2-yl ester (Xavier et al., 2011).