32 WHEAT 



if new importations from the old world will give 

 any advantage over the best local strains which 

 have been developed in our western states from 

 the early importations. 



FROM DRY TO MOIST CLIMATE 



High yielding varieties of wheat from moist 

 climates generally give lower yields in dry climates 

 than acclimated or native sorts, and vice versa, 

 when the conditions are extreme. The quality 

 of hard wheat in the more humid sections of the 

 hard wheat belt is improved by planting seed 

 grown under drier climatic conditions, and if the 

 change in climate or soil is not too great, the yield 

 may not be decreased. Such changes of seed from 

 a dry section to a moister climate should be made 

 along the same latitude or from the north rather 

 than from the south because of the later maturing 

 ing season of the southern grown seed. Also in 

 changing seed, care should be taken to secure 

 strains of the best producing varieties because of 

 the greater inherent tendency of pure strains to 

 produce well, even under changed climatic 

 conditions. 



HEAD-ROW METHOD OF BREEDING 



The more valuable new varieties of cereals that 

 are now being introduced have resulted from the 

 careful multiplication of seed from selected in- 

 dividual plants. In the improvement of small 

 grain, these plants are selected by a process of 

 testing and elimination known as the "head-row" 



