Table 5.

Effects of variety (V), soil bulk density (BD) and their interaction on axial and lateral root number (NoAx and NoLat, respectively) and plant vigor parameters 3 weeks after emergence analyzed with analysis of variance (ANOVA); minimum (Min), average (Mean) and maximum (Max) values and Tukey honest significant difference (HSD) at p < 0.05, values in brackets for NoAx, NoLat, and NoLat/NoAx represent back-transformed values; ^∗ and ^∗∗ denote significant effects at p < 0.05 and <0.01 respectively, n.s., denotes non-significant effects (n = 4).

Trait	Transformation	V	BD	V:BD	Min	Mean	Max	HSD
NoAx [#]	sqrt	∗∗	∗∗	n.s.	2.69 (7.25)	3.70 (13.70)	4.49 (20.16)	0.68
NoLat [#]	sqrt	∗∗	∗∗	∗∗	5.27 (27.82)	8.80 (77.47)	12.29 (151.04)	1.57
NoLat/NoAx [#]	sqrt	∗∗	∗∗	∗∗	1.76 (3.10)	2.34 (5.48)	2.92 (8.54)	0.42
Root dry weight [g]		∗∗	∗∗	n.s	0.059	0.386	0.733	0.217
Shoot dry weight [g]		∗∗	∗∗	∗	0.097	0.454	0.767	0.148
Root-Shoot-Ratio [-]		∗∗	∗∗	n.s.	0.58	0.80	1.07	0.365
Plant height [mm]		∗∗	∗∗	∗∗	160.3	264.8	373.3	42.3
Leaf number [#]		∗∗	∗∗	∗	2.25	3.83	5.00	0.93
Tiller number [#]		∗∗	∗∗	∗∗	0.00	2.39	5.5	2.04