Table 3.

Cell density in an area of 0.2 × 0.2 mm close to the root apex and the final cell length reached in >5 mm distance from the root apex (mean ± SD). Number of replicates (from different individuals): Rumex: n = 4; Ranunculus: n = 5; Tussilago: n = 6; and Poa: n = 6. ^#Trend for shorter cells in Ranunculus (P = 0.09) and Tussilago (P = 0.06) under cold treatment.

	Rumex		Ranunculus		Tussilago		Poa
	Cold	Warm	Cold	Warm	Cold	Warm	Cold	Warm
Cell density close to root apex	353 ± 44	342 ± 20	332 ± 18	351 ± 15	313 ± 25	323 ± 20	400 ± 39	400 ± 18
Final cell length (mm)	0.21 ± 0.03	0.23 ± 0.03	0.18 ± 0.04#	0.24 ± 0.02	0.14 ± 0.02#	0.19 ± 0.02	0.31 ± 0.01	0.28 ± 0.04