# Comparison of Biochemical Constituents and Contents in Floral Next of _Castanae_ spp.
## 2 Results
### Floral Nectar VOCs Composition
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**VOCs** & **LRI** & **CCK** & **CCJ** & **CDA** & **CMC** & **CSE** & **H Test \({}^{*}\)** \\ \hline \hline \multicolumn{1}{c}{Styrene 887} & - & \(0.58\pm 0.10\) & - & \(2.43\pm 1.82\) & - & \\ Benzaldehyde & 960 & \(2.24\pm 1.09\) & \(7.23\pm 3.58\) & \(38.92\pm 16.12\) & \(8.36\pm 0.66\) & \(40.81\pm 2.09\) & \\ Benzyl alcohol & 1036 & \(11.38\pm 0.98\)\({}^{\mathrm{a}}\) & \(7.33\pm 0.36\)\({}^{\mathrm{a}}\) & \(4.74\pm 1.74\)\({}^{\mathrm{a}}\) & \(1.03\pm 0.09\)\({}^{\mathrm{c}}\) & \(2.88\pm 0.49\)\({}^{\mathrm{b}}\) & \(p=0.016\) \\ Benzenzoacetaldehyde & 1044 & - & - & - & \(21.09\pm 3.15\) & \(2.07\pm 0.19\) & \\ Phenylethyl Alcohol & 1062 & \(18.54\pm 1.21\) & \(11.37\pm 0.87\) & - & \(0.65\pm 0.15\) & \(5.16\pm 0.51\) & \\ \(\alpha\)-Methylbenzenmethanol, & 1063 & \(14.03\pm 0.71\)\({}^{\mathrm{a}}\) & \(11.61\pm 0.58\)\({}^{\mathrm{b}}\) & \(5.39\pm 1.20\)\({}^{\mathrm{b}}\) & \(7.76\pm 0.45\)\({}^{\mathrm{b}}\) & \(2.89\pm 0.40\)\({}^{\mathrm{c}}\) & \(p=0.011\) \\ Ethyl benzoate & 1172 & \(1.11\pm 0.13\) & - & - & - & - & \\ Benzoic acid, ethyl ester & 1172 & - & - & - & - & - & \\ \((E)\)-Cinnamaldehyde & 1273 & \(1.65\pm 0.47\) & - & - & - & - & \\ \(2\)-Aminoacetophenone & 1304 & \(0.84\pm 0.07\) & - & - & - & - & \\ Acetophenone & 1304 & \(39.72\pm 27\)\({}^{\mathrm{a}}\) & \(54.40\pm 185\)\({}^{\mathrm{a}}\) & \(37.77\pm 10.45\)\({}^{\mathrm{a}}\) & \(50.57\pm 3.35\)\({}^{\mathrm{a}}\) & \(7.17\pm 0.53\)\({}^{\mathrm{b}}\) & \\ Eugenol & 1361 & - & - & \(1.76\pm 0.36\) & - & - & \\ Hexanal & 796 & - & - & - & \(1.56\pm 0.62\) & - & \\ \((Z)\)-3-Hexen-1 sol & 856 & \(7.50\pm 16.0\)\({}^{\mathrm{a}}\) & \(7.86\pm 0.92\)\({}^{\mathrm{a}}\) & \(3.00\pm 0.45\)\({}^{\mathrm{b}}\) & \(1.99\pm 0.15\)\({}^{\mathrm{c}}\) & \(14.71\pm 1.35\)\({}^{\mathrm{a}}\) & \(p=0.014\) \\ \((E)\)-2-Hexen-1 sol & 869 & - & - & - & - & \(3.46\pm 0.16\) & \\
1-Hexanol & 871 & - & \(1.20\pm 0.18\) & - & \(1.30\pm 0.11\) & - & \\ Ethyl hexanoate & 1001 & - & - & - & - & \(7.00\pm 3.34\) & \\
2-Ethyl-1-hexanol & 1031 & \(1.87\pm 0.21\)\({}^{\mathrm{b}}\) & \(1.81\pm 0.04\)\({}^{\mathrm{b}}\) & \(4.82\pm 0.80\)\({}^{\mathrm{a}}\) & \(2.06\pm 0.25\)\({}^{\mathrm{a}}\) & \(5.70\pm 0.44\)\({}^{\mathrm{a}}\) & \(p=0.034\) \\
1-Octanol & 1073 & - & - & - & - & \(3.51\pm 0.18\) & \\ Nonanal & 1104 & \(0.67\pm 0.00\) & - & - & \(2.09\pm 1.03\) & \(2.46\pm 0.51\) & \\
1-nonanol & 1173 & - & - & - & - & \(4.52\pm 1.06\) & \\ \((Z)\)-Geraniol & 1230 & \(0.44\pm 0.02\) & - & - & - & - & \\ \hline \hline \multicolumn{1}{c}{Data represent the mean \(\pm\) SEM (\(\mu\) = 3. -, compound absent. * Kruskal-Wallis H test. The different letters within a row indicate significant differences among _Castanas_ spp. based on Kruskal-Wallis H test with [PERSON]’s multiple comparison tests (\(p<0.05\)). Abbreviations; CCK, C. _errank_ (Korean cultivar “Mipung?); CJ, C. _errank_ (Japanese cultivar “Ting?); CJ, _C. data_ (American chestnut); CMC, _C. _nullism_ (Chinese chestnut); CSE, C. _scitn_ (European chestnut). & & \\ \end{tabular}
\end{table} 
Table 4: Identified VOCs in floral nectar of _Castan_ spp. (%).