Table 2 Comparative measurements of the length and density of first and second order lateral roots per crown root segment
| Â | Â | Per crown root segment | Per unit of crown root length (cm) | Per unit of 1storder LR | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | LR total length | LR number | LR total length | LR number | LR average length | LR number | ||||||||||||||||
Segment | Genotype | 1storder | 2ndorder | 1storder | 2ndorder | 1storder | 2ndorder | 1storder | 2ndorder | 1storder | 2ndorder | # 2ndorder | |||||||||||
Basal | tb1/Tb1 | 728.7 | a | 438.9 | a | 52.3 | a | 184.4 | a | 65.8 | a | 39.6 | a | 4.8 | a | 16.7 | a | 13.9 | a | 2.12 | a | 0.26 | a |
tb1/tb1 | 803.3 | a | 468.5 | ab | 83.3 | b | 398.9 | b | 77.2 | b | 45.1 | a | 8.0 | b | 38.4 | b | 9.7 | b | 1.17 | b | 0.49 | b | |
B73 | 825.2 | a | 357.9 | a | 55.4 | a | 205.9 | a | 82.5 | b | 35.8 | a | 5.6 | a | 20.6 | a | 14.9 | a | 1.74 | a | 0.25 | a | |
Teosinte | 950.4 | a | 503.6 | b | 106.7 | b | 504.3 | b | 72.5 | b | 38.4 | a | 8.2 | b | 38.5 | b | 8.9 | b | 1.00 | b | 0.53 | b | |
Middle | tb1/Tb1 | 259.4 | a | 96.3 | a | 38.6 | a | 153.9 | a | 23.4 | a | 8.7 | a | 3.5 | a | 13.9 | a | 4.4 | b | 0.63 | a | 0.59 | a |
tb1/tb1 | 289.2 | a | 93.9 | a | 71.3 | b | 282.3 | ab | 27.8 | a | 9.0 | a | 6.9 | b | 27.2 | b | 4.1 | b | 0.33 | b | 0.98 | b | |
B73 | 305.7 | a | 107.7 | a | 43.4 | a | 157.4 | a | 28.6 | a | 10.8 | a | 4.4 | a | 15.7 | a | 6.6 | a | 0.68 | a | 0.55 | a | |
Teosinte | 490.1 | b | 113.3 | a | 105.7 | b | 408.7 | b | 39.4 | b | 8.6 | a | 8.1 | b | 31.2 | b | 4.9 | b | 0.28 | b | 0.79 | b | |
Apical | tb1/Tb1 | 69.4 | a | 32.3 | a | 20.5 | a | 42.5 | a | 6.3 | a | 2.9 | a | 1.8 | a | 3.8 | a | 2.9 | a | 0.76 | a | 0.61 | a |
tb1/tb1 | 79.6 | a | 29.7 | a | 47.3 | b | 31.1 | a | 6.9 | a | 2.6 | a | 4.2 | b | 2.7 | a | 1.6 | a | 0.26 | a | 0.39 | b | |
B73 | 41.8 | a | 46.4 | a | 17.9 | a | 38.6 | a | 4.6 | a | 5.2 | a | 1.9 | a | 4.3 | a | 2.3 | a | 0.30 | a | 0.93 | a | |
Teosinte | 200.8 | b | 119.3 | b | 113.7 | c | 180.2 | b | 15.3 | b | 9.1 | b | 8.7 | c | 13.8 | b | 1.8 | a | 0.26 | a | 0.89 | a | |