28 



THE AMERICAN NATURALIST [Vol. LTII 



Hulled Compared with Hull-less Kernels 

 In order to learn whether there was any difference in 

 the ratios produced by the hull-less kernels from the 

 heterozygous plants the seed from the third generation 

 plants used was separated and planted separately; that 

 is, the hulled and hull-less from family 382al-7-45 was 

 planted separately so that the ratio may be determined 

 on each lot of plants. This was done for all the families. 

 These results are given in Table IX. 



TABLE IX 



Results Obtained from Sowing Hulled and Hull-less Seed from the 































































26 















18 

















19 



27 















18 



28 





10 













39 







14 































18 





























16 





17 





17 









19 







































_1_ 





Totals . . . 



























In mai 



ly of the 



cases the numboi s ; 





small to give 



good ratios, yet the important ])()int is olitaiiicd from 

 the summation of the two scries, in t adi cisr these a.ui'i'f 

 very closely wdth the expected iininl)ci-s. If there was 

 any difference we might ex])ect the Imlled keriK'ls to ])r()- 

 duce relatively more hulled plants and the hull-less rela- 



