Table 2.
Effect of phytohormone treatments or D. radicum infestation on different parameters of plant quality (Wald tests on GLMMs).
| Variable | Phytohormone treatment | D. radicum infestation | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| χ2 | df | P-value | Control | JA | SA | χ2 | df | P-value | Control | Infested | |
| Height (cm) | 7.67 | 2 | 0.0246 | 37.70 (0.74) A | 34.65 (0.95) B | 36.60 (0.69) A,B | 0.19 | 1 | 0.6641 | 36.68 (0.63) | 37.10 (0.73) |
| Plant weight (g) | 4.13 | 2 | 0.1268 | 2131.6 (62.5) | 2082.8 (81.3) | 1936.6 (69.2) | 0.57 | 1 | 0.4497 | 2037.23 (69.87) | 2109.33 (66.16) |
| Head weight (g) | 2.41 | 2 | 0.2994 | 873.5 (48.3) | 864.3 (57.2) | 774.5 (46.0) | 0.35 | 1 | 0.5518 | 826.48 (43.71) | 863.67 (45.33) |
| Visual quality | 0.68 | 2 | 0.7130 | 1.97 (0.10) | 1.87 (0.11) | 2.00 (0.14) | 4.96 | 1 | 0.0259 | 2.13 (0.12) | 1.73 (0.14) |
Values presented are means (±SE). For phytohormones when the global effect is significant, different letters indicate statistically different means at P < 0.05. JA, plants treated with jasmonic acid; SA, plants treated with salicylic acid.
Bold value indicates P < 0.05.