STRENGTH AND CLIMATE 165 



wheats. But there are exceptions, and some few 

 wheats have been found which retain their strength 

 perfectly even when grown year after year in this 

 country. In fact in one case we now know of a 

 variety has endured our climatic conditions for 

 some five and twenty years without being any the 

 worse for it. It has to be recognised then that 

 there are two kinds of Strength, though it is impos- 

 sible to distinguish between them at present, one 

 which is determined by external conditions, the 

 other which is as characteristic of the variety as 

 such features as chaff, colour or awns. An example 

 of the first class of strong wheats is provided by 

 Tisra Videki, an exceptionally strong wheat from 

 Hungary. Some of the parcels of this variety are 

 possibly the finest wheat from the standpoint of 

 quality ever grown. In two years, however, its 

 strength sinks to practically that of ordinary 

 English wheat. It is impossible to say why, and 

 the only result an enquiry into the subject has 

 produced is the interesting one that English 

 wheat sent to Hungary and grown on the fields 

 which have produced some of the best samples 

 of Tisra Videki have not improved appreciably in 

 quality after growing for three years under the 

 same conditions. The Canadian Red Fife is an 

 example of the second class. Well grown and 

 well harvested samples are so similar in strength 

 to the best of those imported from Canada that 

 one cannot distinguish between them in the baking 



