Table 2.
Segregation for resistance in the F2 population bred from the cross cv. AS20-1 x cv. Aichi Asahi, following inoculation with the M. oryzae isolate EHL0635
| Parents/F2 plants | No. of plantsa | Segregationb ration | χ 2c | P | ||||
|---|---|---|---|---|---|---|---|---|
| R | MR | MS | S | Total | ||||
| AS20-1 | 9 | 19 | 1 | 0 | 29 | na | ||
| Aichi Asahi | 0 | 0 | 0 | 32 | 32 | na | ||
| F2 population | 101 | 282 | 254 | 883 | 1520 | 1R:3S | 0.02 | >0.80 |
a R resistant, S susceptible, MS moderately susceptible, MR moderately resistant
b na not applicable
cChi-square test using the Yates correction comparing resistance [R + MR] with susceptibility [MS + S]