16 



BULLETIN 270, U. S. DEPARTMENT OF AGRICULTURE. 



YEAR 



/909 



CLASS 



DURUM- 



F/r£- 



BLUESTEM- 

 PRESTOA/- 



VARIETY 



KUBANKA 

 ARNAUTKA 



POWER 

 GP/RKA 

 GLYNDON 



DAKOTA 

 HAYNES 



/9/0 



DURUM 



E/EE 



BLUESTEM- 

 PRESTO/V-- 



KUBANKA 

 ARNAL/TKA 



POWER 

 6H/RKA 

 GLYNDON 



DAKOTA 

 PAYNES 



/9// \ 



DURUM ■- 



E/EE- 



BLUESTEM- 

 PRESTOM-- 



KUBANKA 

 ARNAUTKA 



POWER 

 GP/RKA 

 GLYNDON 



DAKOTA 

 PAYNES 



DURUM 



/9/2 



\E/EE- 



BLUESTEM- 

 PPESTO/V— 



{kc/banka ■ 

 \ arnautka 



POWER 



GP/RKA 



GLYNDON 



DAKOTA 



PAYNES 



/9/3 



DURUM 



E/EE- 



BLUSSTEM- 

 PRESTO/V-- 



! KOBANKA 



\ ARA/AUTKA 



POWER 



GP/RKA 



G LYNDON 



DAKOTA 

 PAYNES 



\DURUM~ 



/3/4 



\E/EE 



BLUESTEM- 

 PRESTOA'- 



{ KL/BANKA 



\ARNAL/TKA 



POWER 



GP/RKA 



G LYNDON 



DAKOTA 

 PAYNES 



,4y<E/?- 

 s4G£ 



DURUM- 



E/EE- 



BLUESTEM- 



PRESTO TV 



/ KUBAPKA 



\ arnautka 

 power 



GN/PKA 

 GLYNDON 



DAKOTA 

 PA YNES 



C.I. /VS 



r/ELD /N BUSHELS 

 PER ACRE 



/■440 

 3693 

 3697 

 /5/7 

 2873 



3083 

 302/ 



/440 

 3693 



3697 

 /S/7 

 2873 

 3083 

 302/ 

 3698 



/440 

 3693 

 3697 

 /S/7 

 2373 



3083 

 302/ 



3698 



/440 

 3693 



3697 

 /S/7 

 2373 

 3083 

 302/ 

 3698 



1440 

 3693 



3697 

 /S/7 

 2873 

 3083 

 3 02/ 



/440 



3693 



3697 

 /5I7 

 7873 

 3083 

 302/ 



3698 = 



14-40 

 3693 



3697 

 15/7 

 2873 



3083 

 302/ 

 3698 



Fig. 6.— Diagram showing the annual and average yields of leading varieties in four different groups of 

 spring wheat at the Williston substation, with data on the annual and seasonal precipitation for the six 

 years from 1909 to 1914, inclusive. 



