28 



BREEDING DROUGHT-EESISTANT FORAGE PLANTS. 



Table VIII. — Yield of millet selections of 1908 and of their progenies grown at Akron, 



Colo., in 1909. 



a This calculation is doubtless too favorable to the rows in which the stand was incomplete, since the 

 plants growing near the gaps unquestionably yielded more heavily than would the average plant in a row 

 in which the stand is complete. 



> 



The yields of millets in the progeny rows in 1909 were considerably 

 heavier at Akron than at Bellefourche. This fact is not only apparent 

 by comparison of the average yields of all the progenies of each 

 variety at Bellefourche (Table VI) and at Akron (Table VIII), but 

 generally holds good in the case of progenies of those individual 

 selections of which the seed was divided and planted partly at 

 Bellefourche and partly at Akron. The heavier yields at Akron 

 were doubtless largely due to the more favorable season at that 

 locality in 1909. The rainfall there was well distributed through- 

 out the growing season, while at Bellefourche there was less than 

 3 inches of rain during July and August, which is the critical 

 period in the growth of millet. It was noted that the yield of seed in 

 many of the rows at Akron was remarkably high. The average seed 

 yield of the Kursk ])rogeny rows w^as 14^ j)ounds per roM', which is 

 equivalent to a yield of 25 bushels per acre. The largest j^ield, from 

 Kursk selection No. 2, of 18 pounds to the row, is at the rate of 32 

 bushels per acre. 



As shown by the averages for the })rogonios of each variety, the 

 Kursk is first in total weight of ])laiit and w^eight of seed. The 



196 



