6 BULLETIN 99, 17. S. DEPARTMENT OF AGRICULTURE. 



THE MOST PROMISING SELECTIONS. 



The highest yielding selections were all from commercial varieties, 

 as follows: 62-II-19-3 from Sixty-Day, 58.27 bushels to the acre; 

 63-1-4 from Burt. 57.7 bushels; 62-II-6-3 from Sixty-Day, 57.37 

 bushels; 132-3-1 from Sixty-Day, 57.2 bushels; and 62-11-19-1 and 

 132-2 from Sixty-Day, 56.57 bushels. Practically all of the 25 

 highest yielding strains in these tests were derived from the Sixty- 

 Day or Burt or a combination of these two varieties. Of the selec- 

 tions grown in both 1907 and 1908, 17 pure lines of Sixty-Day aver- 

 aged 52.55 bushels, 15 strains of Burt averaged 49.39 bushels, and 

 16 strains of series 34 averaged 47.74 bushels. These yields were 

 in excess of those of all other series except series 8, Danish Island X 

 Asia Minor Rustproof, 10 strains of which averaged 48.62 bushels. 

 The 25 strains which produced the highest average yields for the two 

 vears are shown in Table II. 



Table II. 



-Average yield per acre of 25 highest yielding oat selections grown in nursery 

 tests at McLean, III., in 1907 and 1908. 



Rank. 



Selection 

 Xo. 



Parentage. 



62-II-19-3. 



63-1-4 



G2-II-6-3.. 

 132-3-1.... 

 62-II-19-1. 



132-2 



34al-12-3. . 

 8a2-6-6.... 



63-1-1. 



49al-7. 



49al-12. . . . 

 62-11-17-1. 



34al-13-l. 



Sa2-6-4.... 



Sixtv-Dav 



Burt 



Sixty-Day 



do..." 



do 



do 



Burt X Sixty-Day. 



Danish Island X 

 Asia Minor Rust> 

 proof. 



Burt 



Sixty - Day X 

 Clvdesdale. 



do 



Sixty-Day 



Burt X Sixty-Day. 



Danish Island X 

 Asia Minor Rust- 

 proof. 



Average 

 yield. 



Bushfls. 

 58.27 

 57.70 

 57. 37 

 57.20 

 56.57 

 56.57 

 56.50 

 56.35 



56.05 

 55.97 



55.57 

 55.37 

 54.82 

 54.60 



Rank. 



20 



25 



Selection 

 No. 



132-3-2.... 

 30a2-6-15. . 

 62-11-19. . . 

 49a2-13.... 



Sa2-6-5. . . . 



50al-15-5.. 



02-n-lS-l. 

 50al-20-7.. 



63-1-7 



49a2-18.... 



Parentage. 



62-II-6-1-1 



Sixty-Day 



Burt X Clvdesdale 



Sixty-Day 



Sixty - Day X 

 Clydesdale. 



Danish Island X 

 Asia Minor Rust- 

 proof. 



Sixty-Day X Prob- 

 steier. 



Sixty-Day 



Sixty-Day X Prob- 

 steier. 



Burt 



Sixty - Day X 

 Clydesdale. 



Sixty-Day 



Average 

 yield. 



Bushels. 

 54.55 

 54.35 

 53.95 

 53.72 



53.25 



53.15 



53.12 

 53.10 



53.00 

 52.95 



52.80 



Five of the 10 strains which produced the highest yields for the 

 two years were pure-line selections of Sixty-Day, 2 were pure-line 

 selections of Burt, 1 was a selection from a hybrid of these two 

 varieties, 1 was a selection from a hybrid of Danish Island X Asia 

 Minor Rustproof, and 1 was a selection from a hybrid of Sixt} T - 

 Day X Clvdesdale. Thus, of these 10 strains, 7 were pure lines 

 from Sixty-Day or were selections from hybrids in which that 

 variety was a parent, 3 were selections from Burt or from liybrids 

 in which Burt was a parent, and only 1 was unrelated to either of 

 these varieties. These 10 strains averaged 56.S5 bushels to the acre, 

 as compared with an average of 45.04 bushels for the 228 strains 

 tested. The 25 highest yielding strains averaged 55.07 bushels to 

 the acre. Of these 25 strains 15 were selections of Sixty-Day or 



