## 2 Results and Discussion
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Peak**} & \multirow{2}{*}{**Retention Indices 1 **} & \multirow{2}{*}{**Compounds**} & \multicolumn{4}{c}{**Relative Content 2 **} & \multirow{2}{*}{**\(\pm\) SD 3 **} \\  & & & **Whole Flower** & **Column** & **Labellum** & **Sopal** & **Petal** \\  & & & **(Sunny Bell)** & & & & \\ \hline  & & **Monoterpens** & **54.49** & **44.75** & **48.34** & **82.86** & **92.17** \\
**1** & 934 & \(\alpha\)-pinene & \(1.06\pm 0.20\) & \(27.41\pm 2.52\) & \(5.27\pm 1.59\) & & & \\
**2** & 990 & \(\beta\)-myrone & \(10.20\pm 1.63\) & \(0.94\pm 0.22\) & \(8.62\pm 0.31\) & \(3.50\pm 0.06\) & \(3.12\pm 0.14\) \\
**4** & 1032 & \(\mathrm{e}\)ucalypt & \(0.74\pm 0.06\) & \(16.40\pm 1.77\) & \(6.90\pm 0.96\) & & \\
**5** & 1035 & \(\mathrm{c}\)is-\(\beta\)-coime & \(5.81\pm 0.48\) & & & & \(1.65\pm 0.07\) & \(1.55\pm 0.15\) \\
**6** & 1047 & _trans_-\(\beta\)-coimee & \(14.37\pm 0.97\) & & & & \(1.394\pm 0.81\) & \(8.03\pm 0.10\) & \(7.13\pm 0.27\) \\
**10** & 1121 & \(\mathrm{linal}\) & \(24.31\pm 2.28\) & & & & \(13.61\pm 3.30\) & \(6.68\pm 5.26\) & \(80.37\pm 0.68\) \\
**Aliphatics** & **6.42** & **49.30** & **48.28** & **8.15** & **1.33** & & \\
**3** & 1007 & \(2.6\)-dimethyl/homane & & \(16.21\pm 1.20\) & \(2.89\pm 0.12\) & & & \\
**7** & 1076 & \(\mathrm{c}\)is-\(1,1,3,4\)-tetramethyl/cyclopentane & & \(6.75\pm 0.16\) & \(1.93\pm 0.08\) & & & \\
**8** & 1080 & \(2.4\)-dimethyl-\(1\)-\(1\)-decene & & \(8.18\pm 0.24\) & \(2.43\pm 0.23\) & & & \\
**9** & 1113 & \(4.8\)-dimethyl-\(1,3,7\)-nonariene & & \(18.77\pm 1.06\) & \(5.67\pm 4.58\) & & & \\
**11** & 1128 & \(\mathrm{ali}\)coimee A & & & & & \(1.72\pm 0.07\) & \(1.35\pm 0.33\) \\
**12** & 1133 & \(3\)-isopropylidene-\(5\)-methyl-\(1,4\)-hexadiene & & & & & \(1.33\pm 0.09\) \\
**13** & 1237 & \(4.6\)-dimethyl/dodecane & & \(1.71\pm 0.38\) & \(2.37\pm 0.06\) & & & \\
**14** & 1245 & \(1.3\)-\(4\)-\(tert\)-butylbenzene & \(2.22\pm 0.17\) & \(10.51\pm 2.07\) & \(9.74\pm 0.11\) & & & \\
**15** & 1300 & \(2\)-isopropyl-\(5\)-methyl-\(1\)-heptanol & & \(1.48\pm 0.45\) & \(2.25\pm 0.08\) & & & \\
**16** & 1309 & \(7\)-methyl-\(1\)-undeone & & \(2.52\pm 0.92\) & \(3.69\pm 0.07\) & & & \\
**17** & 1318 & \(\mathrm{hexyl}\)-\(\mathrm{c}\)tyler & & & \(1.65\pm 0.61\) & \(2.49\pm 0.10\) & & & \\
**23** & 1574 & \((\mathrm{S}\)\(\mathrm{Z}\)\(\mathrm{F}\)\(\mathrm{Z}\)) +\(8,4,8,12\)-trimethyl-\(1,3,7,11\)-tridecateateate & & & & & \(1.13\pm 0.10\) & & \\
**25** & \(\mathrm{S}\)**esquietrenes** & **26.04** & & **0.61** & **7.81** & **6.60** & & \\ \hline
**18** & 1422 & \(\beta\)-c-aryophyllene & \(11.80\pm 0.53\) & \(0.61\pm 0.07\) & \(1.56\pm 0.68\) & & & \\
**19** & 1454 & \(\beta\)-farmesene & \(0.55\pm 0.05\) & & & & \(1.07\pm 0.15\) & \(1.03\pm 0.19\) \\
**20** & 1480 & \(\beta\)-ionone & & & & & \(1.56\pm 0.14\) & \\
**21** & 1504 & \(\alpha\)-farmesene & \(13.69\pm 0.74\) & & & \(2.93\pm 0.10\) & \(2.19\pm 0.34\) \\
**22** & 1562 & \((\mathrm{a})\)-trans-neraloid & & & & \(2.25\pm 0.28\) & \(1.52\pm 0.20\) \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Percentage of volatile compounds identified in four different floral organs of a new hybrid, _Cynidium_ “Sunny Bell” using HS-SPME-GC-M.  
21-28 floral scent compounds in the major volatile components of the flower of three _Cymbidium_ varieties [3]. The volatiles mainly comprised monoterpenes, aliphatics, and sesquiterpenes and their contents exceeded 90% [3]. Our results revealed that aliphatics (48.28-49.30%) followed by monoterpenes (44.75-48.34%) of the column and labellum, are the major components in the floral organs of the \"Sunny Bell\" _Cymbidium_ hybrid. The main components of the sepals and petals were found to be monoterpenes (82.86-91.17%), and sesquiterpenes (6.60-7.81%). \(\alpha\)-pinene, linalool, eucalypt, and 4,8-dimethyl-1,3,7-nonatriene were the major compounds responsible for the floral scent of this _Cymbidium_ variety.