Table 2.
Wilcoxon signed-rank tests for differences in glucosinolate levels between silica-gel dried and fresh, and mature and immature leaves, and Kruskal-Wallis tests for differences in glucosinolate levels between species.
| Glucosinolate | Dried vs. fresh | Mature vs immature | Between species |
|---|---|---|---|
| Met | V = 5, p = 1.0 | V = 15, p = 0.06 | χ213 = 44.12, p < 0.0001 |
| Alkyl | V = 1, p = 1.0 | V = 1, p = 1.0 | χ213 = 101.87, p < 0.0001 |
| Benzyl | naa | V = 0, p = 1.0 | χ213 = 66.59, p < 0.0001 |
| 4RB (glucomoringin) | V = 13, p = 0.93 | V = 9, p = 0.07 | χ213 = 75.85, p < 0.0001 |
| 4GB (glucosoonjnain) | V = 16, p = 0.84 | V = 38, p = 0.70 | χ213 = 62.27, p < 0.0001 |
| bN | 8 | 11 | 14 |
ana- not included in dried vs fresh comparison because we included mature leaves only, and only observed in M. rivae immature leaves.
bN the sample size reflects the number of taxa included in the test (species plus wild/domestic M. oleifera and the M. concanensis X oleifera hybrid).