Table 1.
Reactions shown by four rice cultivars infected by a M. oryzae isolate representative of each of the five Chinese populations, and the frequency of resistance exhibited among the collected isolates from each population
| Mo population | Selected isolate | Specific reactions selected from the five Mo populationsa | Resistance frequencies in the five Mo populations (%)b | ||||||
|---|---|---|---|---|---|---|---|---|---|
| AS20-1 | Aichi Asahi | Kasalath | IRBLta2-Pi | AS20-1 | Aichi Asahi | Kasalath | IRBLta2-Pi | ||
| Guangdong | CHL3417 | R | R | R | S | 45.0 | 45.0 | 48.3 | 39.7 |
| Guangxi | EHL1622 | S | S | S | R | 25.0 | 26.7 | 36.7 | 38.3 |
| Yunnan | EHL0210 | MS | S | MS | MS | 36.7 | 36.7 | 53.3 | 73.3 |
| Sichuan | CHL892 | MR | S | S | S | 20.0 | 20.0 | 48.3 | 56.7 |
| Heilongjiang | EHL1379 | S | S | R | S | 6.7 | 1.7 | 63.3 | 56.7 |
a R resistant, S susceptible, MS moderately susceptible, MR moderately resistant
bResistance frequencies were based on 60 isolates except for Kasalath and IRBLta2-Pi in the Guangdong population, in which only 58 isolates were tested