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Table II

Mean ± SD weight (μg) and proportional values of mandibular gland components of mixed colonies A. cerana and A. mellifera queens (N = 3, each).

Component A. cerana A. mellifera P*
weight (μg) proportion weight (μg) proportion

4-methyl-hydroxy-benzoate 49.98 ± 17.48 0.16 ± 0.06 38.71 ± 7.05 0.08 ± 0.01 0.103
(HOB)

9 -keto-2(E)-decenoic acid 232.07 ± 27.55 0.71 ± 0.04 244.13 ± 30.27 0.52 ± 0.03 0.002
(9-ODA)

9-hydroxy-2(E)-decenoic acid 31.92 ± 10.80 0.10 ± 0.03 147.47 ± 21.54 0.31 ± 0.04 0.002
(9-HDA)

10-hydroxydecanoic acid 6.17 ± 3.51 0.02 ± 0.01 13.71 ± 9.50 0.03 ± 0.02 0.512
(10-HDAA)

10-hydroxy-2(E)-decenoic 4.26 ± 0.99 0.01 ± 0.00 25.91 ± 10.29 0.06 ± 0.02 0.024
acid (10-HDA)

Multivariate test of all 0.027
components
Ratio:9-ODA/9-ODA+ 0.96 ± 0.02 0.86 ± 0.05 0.041
10-HDA+10-HDAA
*

Probability from univariate t − tests (df = 4).

Wilk’s lambda (df = 4,1).