THE WHEAT CELTUPcIST. 



63 



variety is not more rank or strong-grooving, does not 

 appear to reqnire a longer season, bnt lias had im- 

 pressed upon it a proclivity to early vegetation by tlie 

 influence of tlie early lieats of March and April, vdiich 

 are not known in the north nntil April and May re- 

 spectively." 



dltfeeexce betaveex avixtek ^heat axd spees'g 

 Wheat. 



It lias been maintained uy writers on wheat cnltnre 

 that the distinction between winter and spring wheat 

 is one which arises entirely from the seascai in which 

 the seed has nsnally been sown ; and that they can 

 readily be converted into each other by srjwing earlier 

 or later, and gradnally accelerating or retarding their 

 growths. If a winter variety is caused to germinate 

 slightly, and then checked by exposure to a low tem- 

 perature, or freezing, nntil it can be sown in spring, 

 some writers have asserted that it may be converted 

 into a spring wheat. 



It requires a long time to change winter wheat into 

 a spring crop. Still, it can be done, by persevering for 

 half a dozen successive years. The usual way to change 

 a winter wheat to spring variety is. to put in the seed 

 a month later every season, until the period of vernal 

 seed-time is reached. This makes it necessary to sow 

 wheat during the winter months. But the desired 

 object can be accomplished in a much more expeditious 

 way than to sow seed in December, and the product 

 of that crop, the next January, arnl the next seascai in 

 February, the next in March, and the next in April. 



The most expeditious way to change winter wheat to 



