60 



BULLETIN 698, U. S. DEPARTMENT OF AGRICULTUEE. 



In the wet spring of 1915, however, when the average plant space 

 in all selections of standard Blackhull kafir was 23.7 inches, the space 

 in Sunrise kafir was only 10.2 inches per plant. 



Table. XXI. — Agronomic data for Sunrise Mfir (C. I. No. 472), grown at the Amarillo 

 Cereal Field Station during the 8-year -period from 1909 to 1916, inclusive. 



\ 



[In the statement of yields per acre 



the bushel is rated at 6C 



pounds.] 









Row 



space. 



Length of period. 





'6 



M 



1 

 "o 



P. 

 



_g 



Seed 



in— 



Yields per acre. 



Year. 



1 



3 



a 



a 

 2 



ti 



a 



o 

 o 



p. 



1 



W 



p. 

 







•3 



03 



w 



T3 

 OJ 



^ 



1909 



Ins. 



12.3 



17.0 

 4.7 

 6.5 

 5.7 

 8.2 



10.2 

 9.1 



Ins. 



10.6 

 6.6 

 3.0 

 4.2 

 3.6 

 4.6 

 4.9 

 4.4 



Days. 

 80 

 90 

 82 

 95 



Days. 



Days. 



P.ct. 

 13.8 

 61.4 

 35.8 

 35.9 

 37.1 

 44.4 

 52.4 

 51.8 



P.ct. 

 66.6 

 49.4 



le.'g' 

 'si. '2' 



90.2 

 65.6 



Feet. 



P.ct. 



P.ct. 



P.ct. 

 65.5 

 38.6 

 47.1 

 36.5 



Lhs. 



i6s. 



Bus. 

 10.8 



1910 



37 

 41 

 39 



127 

 123 

 134 



5.3 

 6.3 

 5.0 

 2.0 

 4.5 

 5.5 

 5.0 



26.5 

 31.1 

 24.3 



10.1 

 14.6 



8.8 



4,485 

 8,716 

 5,380 



1,178 

 2,716 

 1,313 



7.6 



1911 



21.4 



1912 



8.0 



1913 





1914 



77 

 84 

 107 



29 

 47 

 21 



106 

 131 

 128 



"42." i' 



11.2 

 30.7 



"73."6' 



4,400 

 10,920 

 9,000 



4,' 606' 



10.4 



1915 



56.0 



1916 



9.3 











Average.. 



9.2 



5.2 



88 



36 



125 



41.6 





4.8 











15.4 





i 









The average stalk space varied within much closer Mmits than 

 did the plant space. The closest spacing was 3 inches, the widest 

 was 10.6 inches, and the 8-year average was 5.2 inches. This is 

 a very uniform spacing over a period of eight years and also a very 

 close average spacing for a kafir variety having an average height 

 of about 4.8 feet. In general, the tilleruig was proportional to the 

 stand. The proportion of suckers varies from 13.8 to 61.4 per cent, 

 the average being 41.6 per cent, or about one sucker to each 1.5 

 main stalks. 



The average acre yield is 15.4 bushels in the 8-year period, as 

 seen in Tables XX and XXI. During the same eight years the 

 average acre yield of five selections of Blackhull kafir was 12.7 

 bushels, and that of the best one was. 14.3 bushels. In 1913 none 

 of the varieties produced any yields whatever, and in 1916 the 

 standard BlackhuU selections produced no grain, though Sunrise 

 yielded at the rate of 9.3 bushels per acre. In 1909, Sunrise tied in 

 yield with the best Blackhull kafir, and in 1910 it outyielded all 

 Blackhull selections., In the other four years Sunrise was exceeded 

 in yield by one or more of the standard selections, but never by the 

 same one in all years. These comparisons can be seen to better 

 advantage in Tables XX and XXX. 



DAWN (dwarf) KAFIR. 



The origin of this dwarf race (C. I. No. 340) has already been 

 stated under Sunrise kafir, the two having developed in 1908 from 

 selection No. 30, grown in the previous year. The chief difference 



