274 



Male-Sterility in Flax 



MS X various fibre flaxes. 



Offspring 



MS 

 402 

 57 

 72 

 77 

 32 



Totals 



28 



24 



640 



11. In addition to these was the exceptional case in which ilf^^xa tall gave 

 1 $ and 1 MS 



F.) plants from Expt. 2 were tested as follows : 

 Expt. 



Two 5 s selfed gave F3 



Two MS X two sister $ s (1 used in Expt. 12) gave 



proving that these 5 s were heterozygous. 

 One ilfS X sister $ gave 



proving that this ^ was homozygous. 

 5 5 s from Expt. 13 selfed gave 

 45s from Expt. 5 selfed gave 

 4 MS X sister ? s gave 

 2 ?s of complex origin (derived from P 5 ) gave ... 



12. 

 13. 



14. 



15. 

 16. 

 17. 

 18. 



41 



378 



298 



58 



43 



140 

 87 

 58 

 25 



Adding families derived from P 9 , which are expected on selfing to give 3 : 1. There are 



Expt. 



19. Case mentioned, p. 273. 



MS X 5 from Expt. 14 [viz. a plant which had received MS from 

 maternal side and hermaphrodite factor from the paternal 

 side] gave 



MS 

 6 



