20 
BULLETIX 
U. S. DEPARTMEXT OF AGRICULTURE. 
plats of 0.01 acre each and those of 1911 and 1912 in plats of 0.02 acre 
each. Figure 6 shows a portion of the nursery used in the 1908 test. 
Owing to lack of space, the number of strains under test was greatly 
reduced in 1911. Only those which appeared to be most promising, 
as indicated by the 1908 and 1910 tests, 1 were grown in the suc- 
ceeding years. 
Of the strains grown three or more years, the highest average yields 
to the acre were obtained from a pure line of the Sixty-Day oat, 
62-II-6-3, 37.5 bushels; selection 34al-32 from the hybrid Burt X 
Sixty-Day, 36.98 bushels; and a pure line of Silvermine, 125-3, 35.94 
bushels. Of the commercial varieties grown at this station Silver- 
I I 111 I 1:1 \ 
*-^;-^r>. 
Fig. 6.— A portion of the oat nursery at the Virginia experiment station in 1908. 
mine leads in yield. None of the three strains just mentioned was 
included hi the 1908 tests. Of the nine strains which have been 
grown all four years (1908 and 1910 to 1912), the highest average 
yield, 32.9 bushels, was produced by selection 33al-4-l from a hybrid 
of two strains of Burt, though this yield only slightly exceeded those 
of selections 34al-19-4 and 34al-25-2 from the hybrid Burt X Sixty- 
Day. Apparently, among the varieties tested the most promising 
for use in producing new strains for southwestern Virginia are the 
Silvermine, Sixty-Day, and Burt. Late-maturing selections in series 
|8, 42, and 45 did not compare favorably with the earlier ones in 
series 33 and 34. 
1 The 1909 crop was partially destroyed by a storm just before harvest, and for that reason the results 
for that vear have not been used. 
