Figure 2

Leaf rust infection on wheat first leaves at 25 days, 28 days and 31 days post inoculation at low temperature for RL6058 ( Lr34 ) and three derived mutants 2G, 3E and 2F. These three mutants show partial susceptibility, full susceptibility and hyper-susceptibility to leaf rust, respectively. Infection type of susceptible Thatcher was similar to mutant 3E and leaf rust infection of a resistant sib of mutant 2F was similar to RL6058 (not shown).