180 



FIELD CROPS 



the more prominent varieties of white oats grown in the 

 Northern states are Big Four, Silvermine, Clydesdale, Swed- 

 ish Select, and American Banner. White Russian and Tar- 

 tarian are the most common varieties of the side-oat type. 

 Farther south, particularly through Nebraska, Iowa, and 

 Illinois, a type of small early yellow oats from southern 

 Russia, represented by the Sixty Day and Kherson varieties. 



Fig. 60. Four varieties of oats differing in size, shape, and color. On 

 the left, an early yellow oat with small, slender grains. Sixty Day; next, a plump, 

 large-grained, reddish-brown variety, Red Rustproof; then a small, black oat, 

 North Finnish Black; on the right, a medium late, large, white variety, Swedish 

 Select. 



is coming rapidly into favor, though Silvermine and some of 

 the later white oats are popular in some sections in these 

 states as well as in those farther east and north. In the South 

 the most common varieties are Red Rustproof and Winter 

 Turf. The former may be sown either in the fall or in the 

 spring, while the latter is sown only in the fall. 



