109 



Common Swedish wheat (most hardy) . 

 Pudel. 



Sun. 



Extra Squarehead. 



Grenadier. 



Original English Squarehead (least hardy) . 



From a Probstier wheat a sort known as Bore has been isolated which 

 has proven almost as hardy as Pudel. 



An examination of the above diagram reveals the interesting fact that 

 hardier strains may sometimes be isolated from varieties which as a whole 

 are deficient in hardiness, than from varieties which excel in this respect. 



The two pedigree sorts, Bore and Pudel, together with the mass-selected 

 sort Renodlad Squarehead, are at present the three leading sorts in the 

 wheat-growing districts of central Sweden. 



These are described below as follow: 



Bore is a specially stiff strawed sort with high weight per bushel. While m ^- n sorts 

 not so hardy as the common Swedish sorts it has nevertheless produced on i n Middle 

 the average of a series of years over 10% higher yield. In Skane, but not in Sweden. 

 middle Sweden, it is susceptible to yellow rust. By reason of its excellent 

 showing in the north it has become widely distributed in such provinces as 



Ostergotland, Sodermanland, etc. It is still however, not sufficiently hardy 

 or early maturing to be recommended for those provinces lying north of 

 Stockholm. 



Pudel, as its name implies, belongs to the dense-headed, velvet-chaffed 

 type. It represents the hardiest pedigree sort thus far taken from the less 

 hardy imported varieties, marking an advance over Bore also in point of early 

 maturity. On the average of ten years' experiments at Ultuna it has given 

 about 19% higher yield than the sorts originally cultivated in that part of 

 Sweden. In local trials it gave on the average, 10% higher yield than the 

 latter sorts, although during certain severe winters the common Swedish 

 varieties proved superior. It is decidedly stiffer in the straw than the common 

 country sorts but not quite so stiff as Bore. In southern Sweden it is com- 

 paratively weak strawed but since it is not intended for these parts this is 

 not a matter of importance. An objection to Pudel is the white color of its 

 kernels and the readiness with which it sprouts and grows in the stook. 

 Of all sorts tested Pudel is considered the worst in this respect. This is a 



