Table 2.
Effect of segment primary position on in vitro SR formation
| Nodes | Positions | Incubation time (d) | SRs per explant (%) | No. of SRs per explant | Hotelling's test (P ≤ 0·05) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apical | 10 | 15 | 33·33 | 1·07 | A | ||||||
| 30 | 46·67 | 1·67 | B | ||||||||
| 9 | 15 | 63·33 | 1·97 | B | C | ||||||
| 30 | 83·33 | 2·57 | D | E | F | ||||||
| 8 | 15 | 70 | 2·37 | C | D | ||||||
| 30 | 76·67 | 2·67 | D | F | |||||||
| Intermediate | 7 | 15 | 63·33 | 1·93 | B | C | |||||
| 30 | 66·67 | 1·93 | C | ||||||||
| 6 | 15 | 86·67 | 2·1 | D | F | ||||||
| 30 | 90 | 2·27 | D | E | F | ||||||
| 5 | 15 | 100 | 2·67 | E | G | ||||||
| 30 | 100 | 2·87 | G | ||||||||
| 4 | 15 | 96·67 | 2·87 | E | G | ||||||
| 30 | 96·67 | 3·27 | G | ||||||||
| Basal | 3 | 15 | 93·33 | 2·8 | E | F | G | ||||
| 30 | 93·33 | 3·03 | G | ||||||||
| 2 | 15 | 90 | 2·8 | E | F | G | |||||
| 30 | 93·33 | 3·2 | G | ||||||||
| 1 | 15 | 90 | 2·17 | D | E | F | |||||
| 30 | 90 | 2·67 | E | F | G | ||||||
RSRPI, relative storage root production index. Data are means ± s.e. of three replications. The percentage of explants with an SR and the number of SRs per explant obtained from each position after 15 and 30 d of culture were subjected to MANOVA. Different letters indicate statistically significant differences according to Hottelling's test (P ≤ 0·05).