322 FIELD CROPS FOB THE COTTON-BELT 



cotton-belt. Some wheat is produced on the red lands of 

 northern Louisiana. 



396. Improvement of varieties. — The principles 

 underlying the improvement of wheat varieties are the 

 same as those discussed in connection with the improve- 

 ment of oats. The qualities that are especially desired 

 in varieties of wheat for the cotton-belt are high yield, 

 rust-resistance, drought-resistance, earliness, and a higher 

 protein content. 



