14 BULLETIN 811, IT. S. DEPARTMENT OF AGRICULTURE.' 
The Hard Federation (C. I. No. 4733) was the highest yielding- 
variety of spring wheat grown at the Sherman County Branch Station 
in 1918. It outyielded Federation (C. I. No. 4734) by only 0.3 
bushel, but it outyielded both the Marquis and Early Baart varieties 
by more than 6 bushels and Pacific Bluestem by more than 7 bushels 
per acre. Both Hard Federation and Federation were outyielded by 
Kharkof and Fortyfold winter wheats. 
In 1919 Hard Federation, Federation, and White Federation out- 
yielded all other varieties of spring wheat, but again did not yield as 
well as fall-sown varieties. Hard Federation and Federation were 
equal, yielding 28.7 bushels per acre, and White Federation yielded 
only 0.2 bushel less. These yields are more than 4 bushels greater 
than those obtained from Early Baart and Pacific Bluestem and 
nearly 6 bushels greater than the yield of Marquis. For the two 
years 1918 and 1919, Hard Federation had an average yield of 25 
bushels per acre, or 5.4 bushels more than Early Baart, 6.1 bushels 
more than Marquis, and 6.6 bushels more than Pacific Bluestem. 
Federation had an average yield of only 0.1 bushel less than Hard 
Federation. They have yielded about 8 bushels less than Kharkof 
winter wheat, but only about 1 bushel less than Fortyfold. The 
average difference between the yields of Pacific Bluestem and those 
of Hard Federation and Federation are 6.7 ± 1.4 and 6.5 ±1.3 bushels, 
respectively. These are significant differences and represent an in- 
crease in yield of 36.6 and 35.8 per cent. 
Both the Hard Federation and Federation varieties have an average 
height of 24 inches, which is 2 J inches shorter than Early Baart and 
Pacific Bluestem, 7 inches shorter than Kharkof, and 10 inches 
shorter than Fortyfold. Hard Federation has matured in 95 days 
from emergence and in the two years was six days earlier than Early 
Baart and eight days earlier than Marquis and Pacific Bluestem. 
Federation was seven days later than Hard Federation. 
RESULTS AT CHICO. 
In the Sacramento Valley of California the White Australian is the 
principal commercial variety. A considerable acreage of Early 
Baart wheat was grown for the first time in 1919. The Sonora 
variety, important in other sections of California, is grown only to a 
very small extent, as are also Turkey and Marquis. Although these 
latter varieties, especially the red-kerneled wheats, are not generally 
grown, they are included here for comparison. In addition to White 
Australian and Early Baart, the principal commercial varieties, 
several other Australian wheats have been grown in the varietal 
experiments at the Plant Introduction Station at Chico. The annual 
and average yields obtained from these wheats are shown in Table 
IV. 
