BREEDING MILLET AND SORGO FOR DROUGHT ADAPTATION. 



13 



sorghums produce much the largest tonnage of any of the annual 

 forage crops tested. The average yield of four varieties of saccharine 

 sorghums was 3.5 tons per acre, as compared with 1.3 tons for four 

 varieties of foxtail millets, 1 ton for cowpeas, and 0.8 ton for field peas. 

 From comparative yields at Akron, Colo., it appears that sorgo is a 

 more profitable crop than millet from the standpoint of tonnage. 

 In Table VII is given the average tonnage production of all varieties 

 of millet in drilled plats and all sorgos in cultivated rows at Akron 

 from 1910 to 1914, inclusive. The figures show that each year the 

 relative yield was larger for sorgo, its average yield having been 40 

 per cent higher than that of millet. 



Table VII. — Comparative yield of millet and sorgo at Akron, Colo., inl910,1911, 1912, 



and 1914. 



Year and crop. 



Number 

 of plats, 

 averaged. 



Pounds 

 per 

 acre. 



Relative 

 yield. 



Year and crop. 



Number 

 of plats, 

 averaged. 



Pounds 

 per 

 acre. 



Relative 

 yield. 



1910: 

 Millet 



10 

 5 



22 

 11 



16 

 14 



4,950 

 7,940 



3,530 

 5,190 



5,880 

 7,890 



100 

 160 



100 

 147 



100 

 134 



1914: 

 Millet 



12 

 11 



5,170 

 6,360 



100 





Sorgo 



123 



1911: 

 Millet 



Average yield 



for 4 years: 



Millet 







4,880 

 6,850 









1912: 



100 



Millet 



Sorgo 





140 



Sorgo 













Some idea of the relative yield of the new strains of sorgo and 

 millet described in this paper, as compared with other types of annual 

 forage crops, can be had from the data presented in Table VIII. 



Table VIII. — Yield of air-dry forage {in founds per acre) of Dakota Amber sorgo, Red 

 Amber sorgo, Dakota Kursk millet, Sudan grass, and Northwestern Dent corn at Newell, 

 S. Dak., Akron, Colo., Ardmore, S. Dak., and Mandan, N. Dak. 



Location and crop. 



Drilled 

 plats. 



Culti- 

 vated 

 rows. 



Average. 



Relative, 



Dakota 



Amber = 



100. 



Newell, S. Dak., 1913: 



Dakota Amber sorgo . 



Red Amber sorgo 



Millet 



Sudan grass 



Corn 



Newell, S. Dak., 1914: 



Dakota Amber sorgo . 



Red Amber sorgo 



Dakota Kursk millet. 



Sudan grass 



Corn 



Akron, Colo. ; 1914: 



Dakota Amber sorgo . 



Red Amber sorgo 



Dakota Kursk millet. 



Sudan grass 



Ardmore, S. Dak., 1914: 



Dakota Amber sorgo . 



Red Amber sorgo 



Dakota Kursk millet. 



Sudan grass 



Corn 



Mandan, N. Dak., 1914: 



Dakota Amber sorgo . 



Red Amber sorgo 



Dakota Kursk millet. 



Sudan grass 



Corn 



3,250 

 2,650 



1,300 

 2,300 



575 



4,300 

 3,140 



3,325 

 4,550 



2,600 



3,400 

 3,420 

 2,080 

 1,570 

 2,560 



5,530 

 7,320 



3,840 



1,670 

 2,600 



1,010 



7,570 

 11, 720 



3,215 

 4,210 



3,325 

 4,550 

 3,250 

 2,650 

 2,600 



3,400 

 3,420 

 1,690 

 1,935 

 2,560 



5,530 

 7,320 

 5,360 

 4,110 



1,670 

 2,600 

 2,080 

 735 

 1,010 



7,570 

 11, 720 

 4,300 

 3,180 

 4,210 



100 

 137 



98 



100 

 100 

 £0 

 57 

 75 



100 

 132 

 97 



74 



100 

 156 

 125 

 44 

 60 



100 

 155 

 57 

 42 

 56 



