Table 1.

Average Root-Growth Parameters

Treatment	Tip Velocity μm/min	m1 %/h	Trx μm	m2 %/h	x-int μm
Intact Plants
Nottingham	8.3 ± 2	5.7 ± 0.9	40 ± 4.6	553 ± 51	915 ± 44
Amherst	5.5 ± 1.1	5.6 ± 0.6	34 ± 4.3	532 ± 42	979 ± 90
All	7.3 ± 2.2	5.7 ± 0.8	38 ± 5.3	548 ± 51	957 ± 82
Shoot Removed
0 h	4.9 ± 1	4.3 ± 0.8	31 ± 2.7	474 ± 73	1,028 ± 92
2 h	4.7 ± 0.8	3.1 ± 0.7	32 ± 3.2	540 ± 65	888 ± 76
24 h	3.6 ± 0.8	4.6 ± 1	37 ± 3.2	273 ± 63	503 ± 82

Data are mean ± SD, with n = 12 (Nottingham), 23 (Amherst), 35 (All), 17 (2 h), 12 (24 h), and 12 (0 h). For shoot removed, the times given are the times between shoot removal and the start of imaging, except for 0 h where approximately 2 min elapsed between cutting and imaging onset