Table 6. Effect of EMS application dose, EMS exposure period and presoaking duration on root length in rice seedling experiment (cm).
EMS application
dose (%) |
EMS exposure
period (h) |
Presoaking duration (h) | Mean | |||
---|---|---|---|---|---|---|
0 | 6 | 12 | 24 | |||
0.0% | 6 | 4.8ab | 3.9ae | 3.7af | 1.4il | 3.5 ac |
12 | 3.5ag | 3.1ci | 3.1ci | 4.1ac | 3.4 ac | |
24 | 4.0ad | 4.1ac | 3.3bh | 3.2bh | 3.6 ab | |
48 | 2.3ej | 3.9ae | 4.2ac | 3.3bh | 3.4 ac | |
Mean | 3.7ab | 3.7a | 3.6ab | 3.0ac | 3.5 A | |
0.5% | 6 | 3.3bh | 2.4dj | 3.8af | 3.2bh | 3.1 bd |
12 | 0.8jl | 1.5il | 3.3bh | 3.8af | 2.3 de | |
24 | 3.5ag | 2.9ci | 4.4ac | 2.7ci | 3.4 ac | |
48 | 0.0l | 0.0l | 0.0l | 0.0l | 0.0 i | |
Mean | 1.9eg | 1.7eg | 2.9bd | 2.4ce | 2.2 B | |
1% | 6 | 6.66E-16 | 3.3bh | 3.9ae | 3.5ag | 2.7 ce |
12 | 1.80E-16 | 3.4bh | 2.9ci | 2.8ci | 2.3 ef | |
24 | 0.0l | 2.0gk | 2.3ej | 0.0l | 1.1 gh | |
48 | 0.0l | 0.0l | 0.0l | 0.0l | 0.0 i | |
Mean | 0.0h | 2.2dg | 2.3cf | 1.6fg | 1.5 C | |
2% | 6 | 2.1fk | 5.1a | 5.1a | 4.1ac | 4.1 a |
12 | 0.0l | 0.0l | 2.0gk | 3.8af | 1.4 fg | |
24 | 0.0l | 0.5kl | 1.8hk | 0.0l | 0.6 hi | |
48 | 0.0l | 0.0l | 0.0l | 0.0l | 0.0 i | |
Mean | 0.5h | 1.4g | 2.2cg | 1.9eg | 1.5 C | |
General average | 1.5C | 2.3B | 2.7A | 2.2B | 2.2 | |
** | ** | ** |
**: significant at the 1% level; NS: no significant differences. Values followed by the same letter are not statistically significantly different. A: Presoaking duration; A: EMS application dose; a: EMS application dose × EMS exposure period interaction; a: EMS application dose × Presoaking duration; a: Three-way interaction which EMS application Dose × EMS exposure period × Presoaking duration. LSD dose = 0.4; LSD Duration= 0.4; LSD Presoaking = 0.4; LSD Dose×Duration=0.82; LSD Dose×Presoaking=0.82; LSD Duration×Presoaking=0.82; LSD Dose×EMSduration×Presoaking = 1.65; CV (%) = 54.5. CV, coefficient of variation; EMS, ethyl methanesulfonate; LSD, least significant difference.