Table 2.

Relative volatile organic compound (VOC) levels produced by HS-26 cells.

Serial number	Rt (min)	Area (%)	Components	PGP trait	Reference
1	4.879	1.78	Ethanol	Antagonism	[31]
2	5.143	8.22	Acetone	Nematicidal activities	[32]
6	8.658	5.67	Acetoin	Growth-promoting	[33]
8	9.244	2.35	2-Methyl-1-butanol		Not reported
10	10.564	12.91	2,3-Butanediol	Growth-promoting	[33]
16	13.444	1	2-Methylenecyclohexanol	Antagonism	[34]
24	16.008	2.39	trans,trans-3,5-Heptadien-2-one		Not reported
34	18.3	1.2	2-Nonanone	Antagonism	[35]
35	18.453	1.31	2-Nonanol	Antagonism	Patent (CN201510866778.5)
40	19.989	4.75	2-Undecanone,6,10-dimethyl		Not reported
41	20.17	3.12	2-Tridecanol	Negative for antagonism	Patent (CN201510866778.5)
42	20.713	26.78	N,N-Diethyl-1,4-phenylenediamine		Not reported
47	22.053	1.83	Undecanone	Nematicidal activities	[32]
51	22.598	1.12	2-(2-Methylpropyl)-3-(1-methylethyl)pyrazine	Antagonism	[34]
58	24.159	3.03	2-Dodecanone	Antagonism	Patent (CN201510866778.5)
59	24.251	2.01	2-Hexadecanol	Negative for antagonism	Patent (CN201510866778.5)