Table 6.
Sesquiterpene lactone contents in leaves of curly and smooth endives
| STLs content (mg/kg dry matter)a,b | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cultivars | Lc | DHLc | dLc | DHdLc | LcTOT | Lp | DHLp | LpTOT | STLTOT |
| “Domari” | 580.2 ± 17.6b | 295.3 ± 13.1a | 154.3 ± 10.5c | 351.9 ± 16.8b | 1381.7 ± 16.3b | 412.3 ± 18.3c | 142.4 ± 10.1a | 554.7 ± 27.7c | 1936.4 ± 37.1b |
| “Imari” | 474.5 ± 16.7c | 206.5 ± 14.7b | 98.5 ± 8.6d | 80.4 ± 4.3e | 859.9 ± 40.2c | 976.9 ± 21.6a | 1.0 ± 1.0e | 977.9 ± 20.7a | 1837.8 ± 21.8c |
| “Myrna” | 695.2 ± 17.0a | 180.5 ± 15.3b | 835.3 ± 18.8a | 407.8 ± 15.6a | 2118.8 ± 37.9a | 753.1 ± 20.4b | 73.4 ± 4.5b | 826.5 ± 20.4b | 2945.3 ± 53.2a |
| “Confiance” | 154.5 ± 11.3d | 98.2 ± 10.6c | 191.5 ± 14.2b | 202.1 ± 12.1c | 646.3 ± 7.7d | 400.3 ± 15.4c | 49.1 ± 6.3c | 449.4 ± 9.6d | 1095.7 ± 2.3d |
| “Flester” | 160.5 ± 10.8d | 113.1 ± 11.3c | 101.0 ± 10.5d | 147.3 ± 11.5d | 521.9 ± 44.1e | 214.6 ± 14.1d | 29.3 ± 1.2d | 243.9 ± 15.3e | 765.8 ± 29.9e |
| Significance 3 | *** | *** | *** | *** | *** | *** | *** | *** | *** |
| Curly type | 583.3 ± 96.7a | 227.4 ± 53.6a | 362.7 ± 355.5 | 280.0 ± 152.1 | 1453.5 ± 548.5a | 714.1 ± 246.8a | 72.3 ± 61.5 | 786.4 ± 186.8a | 2239.8 ± 531.9a |
| Smooth type | 157.5 ± 10.4b | 105.7 ± 12.8b | 146.3 ± 50.8 | 174.7 ± 31.8 | 584.1 ± 73.8b | 307.5 ± 102.6b | 39.2 ± 11.6 | 346.7 ± 113.1b | 930.8 ± 181.7b |
| Significance | *** | *** | n.s. | n.s. | ** | ** | n.s. | *** | *** |
aLc lactucin, DHLc 11(S),13-dihydrolactucin, dLc 8-deoxylactucin, DHdLc 11(S),13-dihydro-8-deoxylactucin, Lp lactucopicrin, DHLp 11(s),13-dihydrolactucopicrin, LcTOT total lactucin-like STLs, LpTOT total lactucopicrin-like STLs, STLTOT total STLs
bMeans marked with the same letters were not significantly different after the ANOVA and HSD Tukey’s test
c*, **, *** = significant at P < 0.05, 0.01, and 0.001, respectively. n.s. non-significant