Maize field ambient air VOCs

Day (n = 2)

Dusk (n = 3)

Night (n = 4)

Dawn (n = 3)

Kruskal-Wallis

Relative amount (%)

RI

VOCs

Mean ± SE

O

Mean ± SE

O

Mean ± SE

O

Mean ± SE

O

Chi²

p-value

Green leaf volatiles

860

Cis-3-hexenol [8] [9] [13] [20] ^*

rt/MS

-

-

-

-

-

-

-

-

1007

Cis-3-hexenyl acetate

[8] [9] [13] [28] [29] ^*

rt/MS

-

-

0.11

1

-

-

-

2.000

0.572

1209

MeSA [9] [13] [20] [29] ^*

rt/MS

41.57 ± 26.68

2

30.10 ± 7.46

3

25.21 ± 8.63

4

34.35

6.24

3

0.737

0.864

Monoterpenes

942

α-pinene [13] [29] ^*

rt/MS

-

13.05 ± 7.50

2

3.65 ± 2.13

2

9.68 ± 4.85

2

3.389

0.335

993

β-myrcene [8] [13] [20] ^*

rt/MS

-

2.00

1

9.63 ± 5.58

2

2.59

1

1.942

0.584

1017

3-carene^*

rt/MS

3.18

1

3.80

1

1.63 ± 1.07

2

-

1.838

0.607

1032

p-cymene^*

rt/MS

28.95 ± 2.31

2

11.70 ± 6.04

2

18.86 ± 9.37

4

13.84 ± 4.19

3

3.013

0.390

1038

Limonene^*

rt/MS

2.95

1

19.90 ± 2.25

3

9.99 ± 4.20

3

19.35 ± 6.94

3

6.550

0.088

1098

Linalool [8] [9] [13] [28] [29] ^*

rt/MS

19.97

1

12.32

1

12.62 ± 8.33

2

14.87

1

0.295

0.961

Homoterpenes

1117

DMNT [8] [13] [20] ^*

rt/MS

3.34 ± 2.88

2

0.81 ± 0.68

2

1.87 ± 1.00

3

1.77 ± 1.16

2

1.768

0.622

1128

TMTT [8] [28]

rt/MS

-

-

-

-

-

Sesquiterpenes

1395

α-copaene [9] [13] ^*

rt/MS

-

3.42

1

-

3.51

1

2.212

0.530

1415

Ylangene [9] [13]

NIST

-

-

-

-

-

1450

Trans-α-bergamotene

[8] [20] [28] [30]

NIST

-

-

-

-

-

1452

β-caryophyllene

[8] [9] [13] [20] [28] -[30] ^*

rt/MS

-

-

-

-

-

1464

β-farnesene

[8] [9] [13] [20] [28] [30] ^*

rt/MS

-

-

0.21 ± 0.12

2

-

4.364

0.225

1516

GermacreneD [9] [28] [30] ^*

rt/MS

-

-

-

-

-

1527

γ-cadinene [13] [30]

rt/MS

-

-

-

-

-

1535

δ-cadinene [13] [30]

rt/MS

-

2.86

1

-

-

3.000

0.392

1544

Selina-3,7 (11) diene

NIST

-

-

-

-

-

1549

α-cadinene [13] [30]

rt/MS

-

-

-

-

-

1592

Trans-nerolidol [8] [13] [20] [28]

rt/MS

-

-

16.16 ± 10.01

2

-

4.364

0.225