TABLE 1.

Segregation for resistance to stem rust race TMLK among BC2F1 plants in the 12 families derived from crossing Chinese Spring (CS) to 12 BC1F1 plants having the pedigree CS ph1bph1b*2/RL6082

Family no.	Resistant	Susceptible	χ2 (1:1)	Prob. (1:1)
81-3	49	35	2.33	0.127
81-5	27	63	14.40	<0.001
81-6	51	38	1.90	0.168
81-11	48	40	0.73	0.394
81-20	21	61	19.51	<0.001
81-35	60	29	10.80	0.001
81-38	72	16	35.64	<0.001
81-39	17	71	33.14	<0.001
81-40	66	24	19.6	<0.001
81-42	57	29	9.12	0.003
81-56	67	18	28.24	<0.001
81-63	19	70	29.22	<0.001
Total	554	494	3.44	0.064

Prob., probability.