Research Article
Phytotoxic Activity of Ocimum tenuiflorum Extracts on Germination and Seedling Growth of Different Plant Species
Table 1
The equations used to calculate different germination indices.
| Germination parameters | Equations | References |
|
Germination percent (GP) | | Global method |
| Germination index (GI) | Or
| AOSA [13] |
|
Time required for 50% germination () | , where is the final number of germination and cumulative numbers of seeds germinated by adjacent counts at times and when | Coolbear et al. [14] modified by Farooq et al. [15] |
|
Mean germination time (MGT) | ; here, = number of newly germinated seeds at time | Ellis and Roberts [16] |
|
Seedling vigour index (SVI) | | Islam et al. [17] |
|
Speed of emergence (SE) | | Modified from Islam et al. [17] |
|
Germination energy (GE) | | Modified from Ruan et al. [18] |
| Coefficient of the rate of germination (CRG) | , |
Bewley and Black [19], Chiapusio et al. [20] | where = number of germinated seeds on time , = number of germinated seeds on time , = number of germinated seeds on time |
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