| (B) Rust severity*** | Number of genotypes | ||
|---|---|---|---|
| Durganpura 13 | Durganpura 14 | Karnal 14 | |
| ‘0, TR, TMR, TMS, TS' | 48 (16.9) | 34 (12.7) | 193 (74.0) |
| ‘ ≤ 20R, ≤ 10MR' | 43 (16.4) | 19 (7.2) | 7 (2.7) |
| ‘>10MR-40MR, 5MS' | 31 (11.9) | 20 (7.6) | 1 (0.3) |
| Resistant | 122 (46.7%) | 73 (27.9%) | 201 (77.0%) |
| ‘5S-20S, >5MS' | 96 (36.8) | 130 (49.8) | 52 (19.9) |
| ‘>20S-60S' | 18 (6.9) | 27 (10.3) | 4 (1.5) |
| ‘>60S-100S' | 25 (9.5) | 30 (11.5) | 1 (0.4) |
| Susceptible | 139 (53.2%) | 187 (71.6%) | 57 (21.8%) |
0; (naught fleck) no visible infection.;- (Fleck minus) slightly necrosis /micro-flecking visible.; (Fleck) no uredia but small hypersensitive flecks present. 1uredia minute, surrounded by distinct necrotic areas. 2 small to medium uredia surrounded by chlorotic or necrotic border. 3 uredia small to medium in size and chlorotic areas may be present. 3+ uredia large with or without chlorosis, sporulating profusely and forming rings. 33+ both 3 and 3+ pustules occur together.
Race type of Puccinia striiformis Westend. f. sp. hordei Erikss.
R no uredia present. TR trace or minute uredia on leaves without sporulation. TMR trace or minute uredia on leaves with some sporulation. MR small uredia with slight sporulation. MR-MS small-to-medium-sized uredia with moderate sporulation. MS-S medium-sized uredia with moderate to heavy sporulation. S large uredia with abundant sporulation.