TESTS OF SELECTION'S OF OATS. 25 



lion of one year, when the selections were grown on a gravelly loam 

 soil, the tests have been conducted on a fairly fertile Dunkirk clay 

 loam. The highest yields for the six years were obtained from selec- 

 tions from hybrids of Sixty-Day X Burt and Sixty-Day X Probsteier 

 and from the commercial varieties Welcome and Silvermine. In 

 general, the early-maturing strains produced larger yields than the 

 medium or late maturing ones. The yields of selections from hybrids 

 slightly exceeded the yields of selections from commercial varieties, 

 but the difference is practically negligible. Eight selections produced 

 an average yield 8.4 bushels to the acre higher than that of eight 

 unselected commercial varieties in a 3-year test. The highest average 

 yields, 65.1 and 65 bushels, were produced by the commercial variety 

 Lincoln and the pure-line selection 123-5 from the Welcome variety, 

 respectively. 



None of the selections tested at the Pennsylvania experiment sta- 

 tion appeared to be superior to the better commercial varieties. The 

 best yielding selections were those from the Sixty-Day variety and 

 from the hybrids Sixty-Day X Clydesdale and Burt X Sixty-Day. 



At the Arlington Experimental Farm, selections from the Sixty-Day 

 variety and from the hybrids Sixty-Day X Clydesdale and Burt X 

 Sixty-Day have produced the highest yields. 



At the Virginia experiment station, the highest yields have been 

 obtained from selections from the Sixty-Day and Silvermine varieties 

 and from the hybrid Burt X Sixty-Day. 



Selections from the hybrids Sixty-Day X Probsteier, Danish Island 

 X Asia Minor Rustproof, Burt X Sixty-Day, and Sixty-Day X 

 Clydesdale have produced the largest yields at the Ohio experiment 

 station. These yields have been slightly exceeded, however, by those 

 of certain selections made at the Ohio station from commercial 

 varieties. 



The selections tested at the Indiana experiment station do not 

 appear to be superior to the better commercial varieties which are 

 grown there. The best yielding selection was one from the hybrid 

 Burt X Sixty-Day. 



At the Kentucky experiment station, selections from the commercial 

 varieties Sixty-Day and Early Champion and from the hybrid Burt 

 X Sixty-Day appear to be much better than unselected Burt or other 

 commercial varieties which have been tested. 



The tests at the Tennessee and Minnesota experiment stations do 

 not supply sufficient data on which to base conclusions. 



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