120 



Quality in 

 Oats. 



Per cent 

 Hull. 



in Sweden. This fact was already recognized at Svalof from the beginning 

 and the question of local trials as a means of determining the suitability of 

 sorts for a given locality has always been regarded as one of great importance. 

 A comparison of results at Svalof and Ultuna affords an interesting 

 study of the effects of soil and climate on oat sorts and also serves to indicate 

 some of the difficulties which confront the breeder. The quality of oats, 

 which is judged on the basis of per cent hull, weight per 1,000 kernels, 

 hectolitre weight (weight per 2.85 bushels) and per cent double kernels, is 

 found to be better in the north than in the south. As regards per cent hull 

 there is found a difference of several per cent in favor of the most northern 

 station at Lueal. Other experiments are available to show that the further 

 north a sort can be grown the thinner becomes the hull. The accompanying 

 table indicates more clearly the behaviour of the different sorts in this 

 regard : 



Fig. XXXII. Per cent Hull in oat sorts tested at Svalof and at Lulea in 1904. 



At Lulea 

 At Svalof 



The above diagram reveals the parallel behaviour of the different sorts 

 in respect of per cent hull in the two places indicated and shows that sorts 

 grown at Lulea in 1904 were approximately 10% thinner in the hull than 

 those grown at Svalof during the same year. 



