## 2 Results and Discussion
### Discrimination of Different Flower Stages by Electronic Nose
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Peak** & \(\boldsymbol{RT}^{*}\) & \(\boldsymbol{LRI}^{*}\) & **Compounds** & \multicolumn{6}{c}{**Relative Content (\%) \(\pm\) SD**} \\ \cline{3-10}  & (min.) & & **1** & **II** & **III** & **IV** & **V** & **IV** & **VII** \\ \hline
42 & 19.516 & 1384 & \(p\)-anisy acetate & - & - & - & - & \(0.107\pm 0.028\) & - & - \\  & & cyclohexene, & & - & - & \(0.058\pm 0.009\) & - & - & - \\
43 & 19.522 & 1384 & 1-methyl-5(1-methylether) & - & - & - & \(0.058\pm 0.009\) & - & - & - \\
44 & 19.587 & 1386 & \(\alpha\)-bournocene & - & - & - & - & - & \(0.118\pm 0.000\) \\
45 & 19.715 & 1391 & \(\beta\)-element & \(1.545\pm 0.076\) & - & - & \(0.736\pm 0.088\) & - & \(0.648\pm 0.228\) & - \\
46 & 20.591 & 1425 & \(\beta\)-encryplythee & \(33.296\pm 0.710\) & \(32.526\pm 0.456\) & \(26.866\pm 1.198\) & \(17.013\pm 0.233\) & \(15.048\pm 1.629\) & \(21.154\pm 0.230\) & \(27.904\pm 0.462\) \\
47 & 20.789 & 1452 & \(\beta\)-cubetene & \(0.382\pm 0.022\) & \(7.139\pm 0.617\) & \(7.347\pm 0.619\) & \(11.790\pm 1.428\) & \(12.914\pm 1.285\) & \(0.691\pm 0.052\) & \(10.012\pm 0.883\) \\
48 & 21.014 & 1439 & \(\alpha\)-eeline & - & - & - & \(0.025\pm 0.005\) & - & - \\
49 & 21.015 & 1441 & \(\gamma\)-cryophyllne & - & - & - & - & - & \(0.038\pm 0.002\) \\
50 & 21.021 & 1442 & \(L\)-allonormaladrenne & - & - & \(0.037\pm 0.000\) & \(12.792\pm 1.004\) & - & - \\
51 & 21.179 & 1448 & isolatedene & - & - & - & \(0.088\pm 0.001\) & - & - & - \\
52 & 21.288 & 1452 & \(\alpha\)-cubetene & \(1.095\pm 0.173\) & \(0.448\pm 0.196\) & \(0.417\pm 0.036\) & \(0.147\pm 0.015\) & \(0.183\pm 0.019\) & \(0.159\pm 0.016\) & \(0.574\pm 0.167\) \\
53 & 21.312 & 1453 & \((E)\)-\(B\)-farmensee & - & - & - & \(0.284\pm 0.243\) & \(0.522\pm 0.040\) & \(0.931\pm 0.000\) & \(0.895\pm 0.000\) \\
54 & 21.473 & 1460 & \(\alpha\)-cryophyllne & \(13.978\pm 0.545\) & \(12.974\pm 0.157\) & \(10.189\pm 0.042\) & \(5.966\pm 0.416\) & \(5.220\pm 0.598\) & \(8.366\pm 0.017\) & \(9.037\pm 0.228\) \\
55 & 22.106 & 1485 & \(D\)-germacene & \(10.857\pm 0.191\) & \(13.732\pm 0.000\) & \(7.018\pm 0.627\) & \(1.067\pm 0.008\) & \(0.462\pm 0.053\) & \(19.498\pm 1.054\) & \(9.027\pm 0.792\) \\
56 & 22.366 & 1495 & \((+)\)+epi-bicyclesousquiphellandrene & \(1.457\pm 0.213\) & \(0.592\pm 0.422\) & - & \(0.320\pm 0.022\) & \(0.327\pm 0.070\) & - & - \\
57 & 22.449 & 1498 & bicyledgernacre & \(1.767\pm 0.593\) & \(1.994\pm 0.386\) & \(0.752\pm 0.030\) & \(0.511\pm 0.051\) & \(0.538\pm 0.078\) & \(0.723\pm 0.079\) & \(0.418\pm 0.000\) \\
58 & 22.500 & 1500 & \(\alpha\)-anureureure & - & \(0.522\pm 0.000\) & \(0.516\pm 0.000\) & \(0.576\pm 0.072\) & \(0.274\pm 0.012\) & - & - \\
59 & 22.589 & 1501 & \((Z_{2})\)-d-mnesene & \(5.144\pm 0.249\) & - & - & \(6.913\pm 1.857\) & - & - & - \\  & & & & & & & & & \\  & & & & & & & & & & \\  & & & & & & & & & \\  & & & & & & & & & \\
60 & 22.602 & 1505 & 4.5/b\({}^{*}\))-2-methyl-1,3-cyclohex-1,3- & - & - & - & - & - & \(14.114\pm 0.000\) \\  & & & & & & & & & & \\
61 & 22.639 & 1507 & \(\alpha\)-farmensee & - & - & \(11.185\pm 0.000\) & \(0.070\pm 0.001\) & \(5.935\pm 0.306\) & \(15.687\pm 0.000\) & \(0.117\pm 0.025\) \\
62 & 22.793 & 1512 & \((\cdot)\)-\(\beta\)-bisabolene & - & - & - & \(0.196\pm 0.113\) & \(0.267\pm 0.050\) & \(0.570\pm 0.000\) & \(0.423\pm 0.000\) \\  & & & & & & & & & \\  & & & & & & & & & \\  & & & & & & & & & \\
63 & 22.931 & 1518 & \(\alpha\)-autocorocor1-\(\epsilon\) & - & \(0.751\pm 0.000\) & - & - & - & - & \(0.768\pm 0.000\) \\  & & & & & & & & & \\  & & & & & & & & & & \\ \end{tabular}
\end{table} 
Table 1: _Cont._