Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Genetic segregation in response to Phytophthora sojae isolates in 232 F2:3 families derived from a cross between soybean cultivars Zaoshu18 and Williams.
| Parent and the cross | Generation | Amount | Observed number | Chi squared tests | ||||
|---|---|---|---|---|---|---|---|---|
| Ra | Rs | S | Expected ratio | χ2 | P | |||
| Zaoshu18 | P1 | 25 | 25 | – | – | |||
| Williams | P2 | 25 | – | – | 25 | |||
| Williams × Zaoshu18 | F3 | 232 | 54 | 112 | 66 | 1:2:1 | 1.52 | 0.47 |
Ra, homozygous resistant; Rs, segregating; S, homozygous susceptible.
