Table 1.

Chemical composition and relative amounts of essential oil from the samples at different depths from the cut surface in stems pruned in air after 6 weeks treatment.

No.	Compound name	Relative amount (%)
		2 mm	4 mm	6 mm	8 mm	10 mm	CK
1	(E)-.beta.-Famesene	0.02 ± 0.00b	0.05 ± 0.00a	–c	–c	–c	–c
2	.alpha.-Farnesene	0.25 ± 0.03a	0.28 ± 0.03a	0.07 ± 0.01b	–c	–c	–c
3	2-Cyclohexen-1-ol, 2-methyl-5-(1-methylethenyl)-, cis-	0.36 ± 0.04b	1.58 ± 0.12a	0.32 ± 0.03b	–c	–c	–c
4	1,5-Heptadiene, 3,3-dimethyl-, (E)-	1.01 ± 0.08b	1.49 ± 0.16a	0.67 ± 0.05c	–d	–d	–d
5	2-Isopropenyl-5-methylhex-4-enal	0.42 ± 0.02b	0.67 ± 0.07a	0.38 ± 0.04b	0.15 ± 0.01c	–d	–d
6	2-Cyclohexene-1-carboxaldehyde, 2,6,6-trimethyl-	0.7 ± 0.05b	0.92 ± 0.06a	0.67 ± 0.04b	0.41 ± 0.02c	–d	–d
7	Citronellol	0.05 ± 0.01b	0.26 ± 0.03a	–c	–c	–c	–c
8	Butanoic acid, 3-hexenyl ester, (Z)-	1.22 ± 0.09b	1.76 ± 0.21a	1.30 ± 0.09b	0.75 ± 0.05c	–d	–d
9	Nerolidol	0.23 ± 0.01b	0.56 ± 0.03a	0.08 ± 0.01c	–d	–d	–d

The same letters indicate that the difference is not significant at the 0.05 level (p > 0.05, Duncan’s), “–” means not detected. All data are shown as mean ± standard deviation.