72 



BULLETIN 698, U. S, DEPARTMENT OP AGEICULTTJRE. 



Some of the other promising varieties are Nos. 303, grown during 

 eight years, No. 321, grown in seven years, and No. 432, grown 

 during five years. Comparative results will be found in Table 

 XXVIII. The 8-year average acre yield of No. 303 is 11.5 bushels. 

 The 7-year average acre yields of Nos. 303 and 321 are 13.1 and 13.5 

 bushels, respectively. The 5-year average acre yields of the three 

 numbers are 12.4, 12.8, and 16.7 bushels, respectively. 



Table XXVIII. — Annual and average yields of au lots of new Icafirs grown at the 

 Amarillo Cereal Field Station during periods of varying length in the eight years from 

 1909 to 1916, inclusive. 



[In the statement of yields per acre the bushel is rated at 60 pounds.] 





Annual yields (bushels) 



Average yields. 



C. I. No. 



1909 



1910 



1911 



1912 



1913 



1914 



1915 



1916 



4 years, 

 1910 

 to 

 1913. 



5 years— 







1909 



to 



1913. 



1912 



to 



1916. 



8 years, 

 1909 to 1916. 



251 







13.4 

 21.7 

 18.1 

 29.8 

 40.0 

 23.3 

 26.1 



6.3 











Bus. 



Bus. 



Bus. 



Bus. 



Cwt. 



291 





2.2 



6.1 

 4.8 

 3.5 

 4.7 

 4.5 

 6.2 



12.4 

 3.3 

 3.3 

 3.0 



11.8 

 4.5 





8.3 



44.7 





7.5 





11.8 







323 









303 









7.7 

 12.7 



51.0 

 66.0 









11:2 



16.7 







316 ^. 



4.3 

 5.3 



"i'.l' 



4.1 





11.2 



8.8 

 9.1 



9.8 

 8.1 



16.0 



9.6 



319 





322 

















432 . . 







9.3 

 6.3 



59.7 

 50.7 



2.0 





16.7 

 12.1 







252 







28.6 

 20.7 

 25.0 

 25.2 

 23.0 











253 

















312 



3.3 

 9.6 



l.S 

 5.7 

 5.3 











7.5 

 10.7 



8.2 



6.6 

 10.4 









314 



321 







6.0 

 6.7 



46.7 

 64.7 





12.9 

 1.3.2 



13.1 



7.9 



280. ... 



4.3 

































GUINEA KAFIR. 



The variety here called Guinea kafir is an old variety in this 

 country which is not now grown, commercially, so far as known. It 

 was widely advertised and tested 50 years or so ago under various 

 names. Among them were such as "Rural Branching Sorghum," 

 "White Millo Maize," etc. It was then grown to some extent in the 

 Southern States, being too late to mature anywhere else. Although 

 carefully tested both in the nursery and in field plats at the Amarillo 

 Cereal Field Station, it has shown no adaptation for the dry lands. 



It is too taU, too late in maturing, and too poor a yielder of grain 

 to be of commercial value, even under conditions more favorable than 

 those of the Texas Panhandle. Some popular interest still attaches 

 to it, and for this reason it has been carried in the experiments during 

 the entire nme years. The results obtained are shown in Table 

 XXIX and comparatively in Table XXX and prove how poor it is 

 under such conditions. Even in 1915 it was unable to make a better 

 yield than 35 bushels per acre. 



