Table 4 Effect of coumarin on development of in vitro potato microtubers
Characters of microtuberization | Coumarin concentration ( mg/l) | |||
|---|---|---|---|---|
0 | 20 | 40 | 60 | |
No. of days to begin tuberization | 13.7 ± 5.666a | 11.3 ± 3.33a | 11.3 ± 3.333a | 13.7 ± 5.66a |
No. of days to reach 50% tuberization | 30.7 ± 0.351b | 22.3 ± 3.21b | 25.3 ± 2.426b | 45 ± 5.507a |
% of tuberization after 8 weeks | 65.2 ± 10.63a | 83.3 ± 8.81a | 80.6 ± 10.007a | 60 ± 5.773a |
No of tubers per plantlet after 8 w | 1.2 ± 0.057a | 1.5 ± 0.152a | 1.5 ± 0.173a | 1.2 ± 0.1a |
Weight of microtubers | 24.6 ± 6.333c | 69 ± 0.577a | 50.2 ± 0.986b | 27 ± 0.577c |