68 BULLETIN 823, U. S. DEPARTMENT OF AGRICULTURE. 



The summary of average yields presented in Table LV indicates 

 that at more than 50 per cent of the stations under a wide range of 

 climatic conditions, early varieties have outyielded midseason and 

 late varieties. The early varieties, Kherson and Sixty-Day, have 

 given the best results in the warmer humid, subhumid, and semiarid 

 sections. Late varieties have been superior in yield to those of the 

 midseason group at only a few stations. 



GENERAL CONCLUSIONS. 



In general, the early varieties, Kherson and Sixty-Day, yield well 

 in most of the spring-oat sections of the United States. 



In New York and the New England States the best midseason 

 varieties, such as Welcome, Banner, Lincoln, Swedish Select, etc., 

 outyield the Kherson and Sixty-Day and therefore are recommended 

 for growing. 



In the higher central and western portions of Pennsylvania, and 

 in western Maryland, northwestern Virginia, and West Virginia, 

 early varieties are superior to midseason or late varieties. 



In Ohio there is little choice between early and midseason varieties. 

 Results in Indiana favor the midseason varieties for the central and 

 northern sections of that State. 



In central Illinois strains of the Kherson or Sixty-Day type out- 

 yield those of the midseason varieties and are preferable for this 

 section. In northern Illinois the midseason varieties are slightly 

 superior. 



In southern Indiana and Illinois the early red varieties, such as 

 Red Rustproof and Burt, are the most dependable. 



In Michigan and Wisconsin, where conditions are similar to those 

 of New York and New England, midseason varieties outyield the 

 Kherson and Sixty-Day and are recommended. 



In most sections of Iowa and in southern Minnesota, southeastern 

 North Dakota, and eastern South Dakota, early oats are well adapted 

 and outyield practically aU other varieties. 



In northern Minnesota midseason varieties apparently are best 

 adapted. 



In the eastern half of Nebraska, Kansas, and Oklahoma, in Mis- 

 souri and Arkansas, and in western Kentucky and Tennessee, early 

 oats are best adapted. In general the early red varieties, Red Rust- 

 proof and Burt, take first rank, with the Kherson and Sixty-Day 

 close competitors in many districts. 



In ■ the southern Great Plains under semiarid conditions early 

 varieties are superior. Red Rustproof, Red Algerian, and Burt are 

 the best adapted varieties, with Kherson and Sixty-Day the next 

 best. However, the latter are not as close competitors in this section 



