Table 1 Number of seeds produced and germinated in relation to the number of crosses carried out, cross fertility and the number of self-fertilised seed produced for each generation of the introgression programme for T. timopheevii into hexaploid wheat

Wheat × T. timopheevii

–

–

5

0.3

–

F₁

86

85

16

0.4

0

BC₁

90

42

94

6.5

395

BC₂

187

78

93

10

3077

BC₃

101

81

99

15

3471

BC₄

6

67

100

15.3

75

Total

470

–

–

–

7018