160 



LOCK : STUDIES IN PLANT BREEDING 



No. 



White. 



28 plants of this generation, Nos. 31-58 of Table 45, showed 

 the red pericarp character and 33 the white ; 3 of the latter 

 produced only a small number of grains. 



From that cob in F2 (see Expt. 69) which showed only 

 24 per cent, of blue grains (pericarp red) both white and blue 

 grains were sown separately, pollination being once more effect- 

 ed from white dent. 



Expt. 71. — From the blue grains (red pericarp) there were 

 obtained 24 plants with white pericarps and 26 with red ; the 

 proportion of blue grains in all the former and 8 of the latter 

 were counted, with the result shown in Table 46 : — 



No. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



L0 



11 



12 



13 



II 



15 



16 



17 



18 



