Table 3.
Ranking of 21 Indica rice genotypes based on the extent of N-induced delay in germination.
| Rank on the basis of Δ t½ | ||||
|---|---|---|---|---|
| Genotypes | ΔM±NO3 | ΔM±NH4Cl | ΔM±Urea | Δ(M±NH4NO3) |
| Aditya | 1 | 18 | 2 | 1 |
| Nidhi | 2 | 4 | 4 | 2 |
| Swarnadhan | 3 | 14 | 1 | 3 |
| Rasi | 4 | 7 | 15 | 16 |
| Nagarjuna | 5 | 19 | 5 | 5 |
| MandyaVijaya | 6 | 11 | 3 | 4 |
| Sampada | 7 | 17 | 11 | 8 |
| Vikas | 8 | 5 | 13 | 6 |
| Prasanna | 9 | 3 | 6 | 10 |
| Suraksha | 10 | 12 | 10 | 12 |
| Varadhan | 11 | 1 | 20 | 20 |
| Ajaya | 12 | 9 | 7 | 11 |
| Jaya | 13 | 15 | 14 | 14 |
| K. Hamsa | 14 | 10 | 19 | 17 |
| Swarna | 15 | 20 | 9 | 18 |
| Vibhava | 16 | 16 | 8 | 7 |
| Pusa Basmati | 17 | 13 | 18 | 19 |
| Ravi | 18 | 21 | 16 | 9 |
| Panvel | 19 | 8 | 17 | 13 |
| Triguna | 20 | 2 | 12 | 15 |
| Vikramarya | 21 | 6 | 21 | 21 |
The N-induced delay in the time taken for 50% seeds to germinate (Δt½) was calculated as the difference between t½ values in Arnon Hoagland media (M) with or without N, as specified for each source of N in the titles of the columns. The ranking was based on the values obtained in media containing nitrate (first column).