30 



BULLETIN 402, XJ. S. DEPARTMENT OP AGRICULTURE. 



The average dates of heading and maturity, height, yield of grain 

 and straw, and weight per bushel of five varieties of barley which 

 were grown at the Akron Field Station during the 8-year period 

 from 1908 to 1915, inclusive, are given in Table XXL The average 

 yields are shown graphically in figure 9. BlackhuU (C. I. No. 878) 

 has averaged five days earlier in maturing than Coast (C. I. No. 690). 

 The ripening date of BlackhuU is July 15, and that of Coast July 20.' 

 Hannchen (C. I. No. 602) and Hanna (C. I. No. 226) are still later, 

 averaging July 22 and July 24, respectively. 



The quality of grain, as shown by weight per bushel, puts Hannchen 

 in the lead and Hanna a close second. Although the Coast barley 

 has a plump, heavy grain, it does not thrash clean. The fragments 



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Fig. 9. — Diagram showing the average yields of the leading varieties of barley at the Akron Field 

 Station, 19G8 to 1915, inclusive. 



of awns prevent its packing and the tester shows it to weigh only 

 39 pounds per bushel, or 9 pounds below the standard weight. The 

 straw weights do not vary sufficiently to need comment. 



Table XXI. — Average dates of heading and maturity, height, yield of grain and straw, 

 and weight per bushel of five varieties of barley grown at the Akron Field Station, Akron, 

 Colo., during thp 8-year period, 1908 to 1915, inclusive. 



Group and variety. 



C.I. 



No. 



Dates of — 



Height. 



Yield per acre. 



Weight 



Heading. 



Maturity. 



Grain. 



Straw. 



bushel. 



2-rowed hulled: 



Blaekhull 



878 

 226 

 602 



690 



595 



June 18 

 July 2 

 June 30 



June 25 



June 28 



July 15 

 July 21 

 July 22 



July 20 



July 22 



Inches. 

 28 

 28 

 26 



28 



26 



Bushels. 

 30.9 

 31.3 

 38.7 



38.0 



025.1 



Pounds. 

 1,696 

 2,291 

 1,973 



2,134 



1,771 



Pounds. 

 46.5 



Hanna 



47.0 





47.5 



6-rowed hulled: 



39.0 



6-rowed naked: 



Nepal (White Hull-less) 



67.8 







« For comparison, computed at 48 pounds per bushel. 



NURSERY EXPERIMENTS. 



The nursery tests with barley have included 75 varieties and nu- 

 merous strains. The object has been to discover valuable new 

 material, and when a variety or selection did not prove itself supe- 



