142 THE SMALL GRAINS 



Montana, Smyrna 'White, a two-row variety, is now 

 found to be much the best. At Lethbridge, Alberta, the 

 behavior of the two subspecies under irrigation is re- 

 versed, the six-row being then the better. For best re- 

 sults with barley as well as other small cereals in this dis- 

 trict, a good intertilled crop is much needed to precede 

 the cereal crop. 



Varieties now grown or adapted : 



Canadian Thorpe Invincible Odessa 



Claude Mansfield Swedish Chevalier 



Hanna Manchuria Smyrna White 



Hannchen O. A. C. No. 21 Swan Neck 



Gatami 



Needs of the district : 



Earliness to escape frost in the northern portion, and to es- 

 cape drought in the southern portion 

 A proper alternating intertilled crop 

 Drought resistance 



132. Southern Plains barley district. In this district 

 are included the eastern two-thirds of Nebraska, eastern 

 Colorado, Kansas, western Oklahoma and Texas, and 

 eastern New Mexico. While in dryness of climate this 

 district is much like the preceding, conditions in other 

 respects are quite different, and the barley adaptation is 

 entirely different. Varieties that will escape the early 

 summer heat better than the slow two-row sorts are re- 

 quired. The evaporation being extreme, greater drought 

 resistance is needed, also winter hardiness that will per- 

 mit a wider extension of winter barley cultivation. The 

 total barley production of the district is at present small. 

 The present winter varieties may be grown in the southern 

 portion. Farther north, Success or Horsford barley is 

 somewhat common. Coast barley has done the best at 



