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Table 3 C6 compounds and alcohols contents (µg L−1) of harvested apples of protective applications of individuals and combinations of EOs against B. Cinerea (X ± SE)

From: Volatile organic compounds produced by some synthetic essential oils as biological fumigants against Botrytis cinerea on apples

Compounds

CT

Fun

Thy + Fun

Cin + Fun

Eug + Fun

Cin + Eug + Fun

Thy + Eug + Fun

Thy + Cin + Fun

Thy + Cin + Eug  + Fun

p-value

C6 compounds

 Hexanal

4.3 ± 0.6ns

4.8 ± 0.1

4.9 ± 0.1

5.3 ± 1.0

5.0 ± 0.3

4.2 ± 0.3

5.2 ± 0.3

5.2 ± 0.5

5.4 ± 0.7

0.1018

 (Z)-3-Hexenal

1.8 ± 0.4ns

1.7 ± 0.1

1.7 ± 0.0

1.8 ± 0.1

1.5 ± 0.0

1.8 ± 0.4

1.7 ± 0.3

1.6 ± 0.2

2.0 ± 0.0

0.1837

 (E)-2-Hexenal

2.4 ± 0.4ns

2.2 ± 0.2

2.0 ± 0.3

2.1 ± 0.4

1.8 ± 0.1

2.2 ± 0.2

1.9 ± 0.1

2.2 ± 0.5

2.2 ± 0.4

0.4204

 Hexanol

3.5 ± 0.3ab

3.2 ± 0.6c

3.0 ± 0.0c

3.3 ± 0.3bc

2.7 ± 0.4d

3.0 ± 0.1c

3.0 ± 0.1c

3.0 ± 0.3c

3.8 ± 0.1a

0.0284

 (E)-3-Hexenol

1.6 ± 0.3ns

1.4 ± 0.1

1.5 ± 0.0

1.5 ± 0.1

1.3 ± 0.0

1.6 ± 0.3

1.5 ± 0.3

1.6 ± 0.2

1.8 ± 0.3

0.4260

 (Z)-3-Hexenol

0.4 ± 0.1ns

0.4 ± 0.0

0.4 ± 0.0

0.3 ± 0.3

0.4 ± 0.0

0.5 ± 0.1

0.4 ± 0.0

0.5 ± 0.0

0.5 ± 0.1

0.5968

 (E)-2-Hexenol

1.3 ± 0.3ns

1.2 ± 0.2

1.3 ± 0.0

1.4 ± 0.0

1.1 ± 0.1

1.2 ± 0.2

1.3 ± 0.3

1.4 ± 0.3

1.4 ± 0.1

0.5365

Alcohols

 2-Heptanol

0.4 ± 0.0ns

0.56 ± 0.16

0.5 ± 0.0

0.4 ± 0.2

0.5 ± 0.0

0.4 ± 0.0

0.5 ± 0.2

0.5 ± 0.0

0.7 ± 0.2

0.1627

 1-Octen-3-ol

0.6 ± 0.1bc

0.56 ± 0.02bc

0.5 ± 0.0bc

0.6 ± 0.0bc

0.5 ± 0.0c

1.8 ± 1.0a

0.5 ± 0.0bc

0.6 ± 0.0bc

0.6 ± 0.1b

0.0106

 Heptanol

5.9 ± 1.2b

5.07 ± 0.07cd

4.9 ± 0.4de

5.3 ± 0.6c

4.4 ± 0.2f

4.4 ± 0.2f

4.7 ± 0.0e

5.6 ± 0.5b

6.2 ± 1.1a

0.0246

 2-Ethyl hexanol

1.4 ± 0.2abc

1.24 ± 0.01abc

1.2 ± 0.1bc

1.3 ± 0.2abc

1.0 ± 0.0c

1.5 ± 0.3ab

1.3 ± 0.2abc

1.3 ± 0.0abc

1.6 ± 0.1a

0.0479

 Octanol

1.4 ± 0.2ns

1.28 ± 0.02

1.2 ± 0.1

1.3 ± 0.2

1.0 ± 0.0

1.5 ± 0.3

1.3 ± 0.1

1.3 ± 0.1

1.5 ± 0.3

0.1952

 Nonanol

1.3 ± 0.3ns

1.17 ± 0.14

1.2 ± 0.0

1.3 ± 0.0

1.0 ± 0.0

1.6 ± 0.5

1.2 ± 0.1

1.3 ± 0.2

1.4 ± 0.2

0.3462

 Benzyl alcohol

3.4 ± 0.7c

3.07 ± 0.24e

3.1 ± 0.0e

3.3 ± 0.2d

2.8 ± 0.1f

2.2 ± 0.5g

3.1 ± 0.5e

3.6 ± 0.3b

3.8 ± 0.2a

0.0021

 Phenylethyl alcohol

2.2 ± 0.3ns

2.05 ± 0.02

2.0 ± 0.1

2.1 ± 0.3

1.8 ± 0.0

1.8 ± 0.1

1.9 ± 0.0

2.1 ± 0.4

2.3 ± 0.3

0.0836

  1. Different letters in the same column indicate statistically significant differences (p  ≤ 0.01). ns; not significant