EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 



59 



they were begun in 1910. The annual and average yields of the 

 Sixty-Day and four other varieties grown during four or more years 

 of the 7-year period from 1910 to 1916, inclusive, are shown in Table 

 XLVIII. Owing to tlic lack of land no varieties of oats were grown 

 atChico in 1917. 



Table XLVIII. — Annual and average yields of the Sixty-Day and four other varieties of 

 oats grown at the Plant Introduction Garden at Chico, Calif., for five or more years in 

 the J-yar -period from 1910 to 1916, inclusive. ' 



[Data obtained in cooperation with the Office of Foreign Seed and Plant Introduction.] 





C.I. 



No. 



Yield per acre (bushels). 



Group and variety. 



1910 



1911 



1913 



1914 



1915 



1916 



Average. 





1910 to 

 1916 



1913 to 

 1916 



Early yellow: 



Sixty-Day 



165 



616 



519 

 520 



180 



31.0 

 24.3 



52.3 

 65.6 



2 43.8 



41.8 



35.3 

 23.0 



36.3 



39.2 



43.3 



61.4 

 38.5 



36.7 



20.9 



27.3 



24.5 

 17.0 



24.8 



26.3 



28.5 



20.4 

 21.3 



23.6 



35.6 

 38.5 



32.6 



Early red: 



Red Rustproof (Calif. Red) 



Midseason white: 



Danish Island 



35.2 

 32.9 









25.0 



Winter: 



Winter Turf (Dewev) 





88.7 



30.4 







1 Yields of oats not comparable in 1912; plats were badly infested with wild oats and other weeds. 



2 Average of four check plats. 



Reference to Table XLVIII shows that in the six years, 1910, 1911, 

 and 1913to 1916, iticlusive, the Red Rustproof has outyielded the 

 Sixty-Day by 2.9 bushels at Chico. In the 4-year period from 1913 

 to 1916, inclusive, the difference is about the same in favor of the 

 Red Rustproof. In this period the Danish Island also has slightly 

 outyielded the Sixty-Day. These tests indicate that the Red Rust- 

 proof is to be preferred to all others in the central valleys of California. 

 This is in accordance with the experience of farmers, and as a conse- 

 quence the Red Rustproof is the variety commonly grown in Cali- 

 fornia, where it is known as California Red, or Common California. 



Conclusions. 



The average yield of the leading variety in each group at the 

 stations included in the western basin and coast areas is shown 

 graphically in figure 13. 



The results presented in Tables XLII to XLVIII, inclusive, show 

 that the early yeUow varieties, Kherson and Sixty-Day, are high 

 yielders under dry-land conditions at aU the stations west of the 

 Rocky Mountains with the exception of Nephi, Utah. The climatic 

 conditions at this station seem to favor the midseason varieties. 

 In western Washington (PuyaUup) the rainfall is too heavy for it 

 to be classed as a dry-land section. At the other four stations 

 usually one or more of the midseason white varieties have shghtly 

 outyielded the Kherson and Sixty-Day. 



