Table 1. IT of F2 population from a cross Creso´Pedroso to P. triticina isolate Flamingo in the seedling stage.

Genotype	IT	% of lines with such IT
F2 (Creso´Pedroso)	<8	70,7*
F2 (Creso´Pedroso)	³8	29,3

* Proportion significant (3:1) according to a Chi-square analysis (c²=0.99, 95 %).