74 



University of California Publications in Agricultural Sciences [Vol. 1 



Group I 



1906 



Xumlier Per cent 

 of samples typical 

 in group kernels 



Original 7 100.0 



Progeny 7 81.5 



Per cent 



total 

 protein 



12.74 

 12.78 



Group II 



Number Per cent 

 of .samples typical 

 in group kernels 



9 



0.0 

 '5.6 



Per cent 



total 

 protein 



10.58 



12.50 



Group III 



'L. 



Number Per cent 

 of samples typical 

 in group kernels 



6 55.6 



6 78.5 



Per cent 



total 

 protein 



12.23 

 12.32 



1906 

 Original 

 Progeny 



It is here shown that the average per cent of typical kernels 

 in all the originals was 47.4 and in the progeny 78.2, and the 

 protein content 11.71 per cent and 12.54 per cent respectively. 

 It is perfectly evident from these figures that a wheat which 

 consists of 100 per cent starchy kernels may, in a single season, 

 revert to practically a perfect wheat, or to essentially the same 

 average protein content for the season and region as a wheat 

 grown from perfectly glutenous kernels. 



Instances of this are particularly shown in samples no. 713 

 and no. 725. In the first the original consisted of 100 per cent 

 of entirely starchy kernels and still produced 96.9 per cent of 

 typical kernels in the progeny. In the second the same is shown 

 to a somewhat smaller extent, the original carrying but 38.3 

 per cent typical kernels and still producing 97.9 per cent in the 

 progeny. 



Other trials. — Trials Avere also made to determine the per- 

 centage of typical seed in six varieties grown at Modesto from 

 seed in which the percentage of typical kernels had been pre- 

 viously determined, using 1000 kernels as a basis. These were 

 also seeded in rows and were harvested in the hard dough stage. 

 Counts were then made to determine the percentage of typical 

 kernels in the progeny. The results appear below. 



