PLANT BREEDING 967 



best crops on the average, while the " Primus " variety is found inferior 

 to all the others tested. On the other hand, as regards straw yield and 

 weight per bushel the varieties " Plymage" and " Primus" are equal, and 

 markedl}' superior to the two others. " Primus " gives the biggest weight 

 per I 000 grains (44.0 grms.), and is followed by " Svanshals ", " Plymage " 

 and " Sexradigt " with 32 grms. only. 



Finally, the duration of the vegetative period varied from 91 days in 

 1914 to 112 days in 1910. The 6-rowed barley is harvested on the average, 

 5 days, and " vSvanhals " 3 days before " Plymage " and " Primus ", which 

 are last, and ripen simultaneousl3^ From the results of these 6 years' tests 

 as a whole, it ma}- be concluded that the two varieties " Plymage " and 

 " Svanhals ' in the region of Torestorp and in all other localities with equal 

 climatic and soil eruditions, should be preferred to the varieties "Sexra- 

 digt " and " Primus ", in spite of the excellent quality of grain marking 

 this latter variety. 



747 - Comparative Tests with 8 Races of Oats, at Flahult, Sweden. — hjalmar von 



Feilitzen in Svenska Mosskulturforeningens Tidskrift. Year XXX, No. i, pp. 65-67. 

 Joukoping, 1 91 6. 



Comparative cultivation experiments with 8 races of white and black 

 oats conducted in 1915 at Flahult in sandy and peaty soil. 



The oats were sown on the 29th April. The frosts at the end of May 

 and lack of rain at the time of earing, caused great damage to the sown 

 fields and reduced the crop considerably. 



Among the wliite races in particular, there was a high percentage of ears 

 which were empty, or poor or inferior in quality of contents. We repro- 

 duce some corresponding data : (Table I, page 968). 



Owing to the unfavourable weather, both the straw and grain yields 

 were low. The best comparative results were obtained with the two strains 

 of German oats for peat soil, and the worst with Klock II. The two new 

 types of Svalof black oats were, contrary to expectation, inferior to the 

 German oats ; the shortness of the period of observation, however, does 

 not allow of definitive conclusions on this point. We quote the following 

 average results : 



Number Straw yield Grain yield 

 of years per acre per acre 



, ., . of test — — 



Probsteicr 7 38.36 2 068 



New (iernian light yellow oats for peat soil 5 38.32 2037 



New tiernian golden-yellow oats for peat soil .... 5 38.42 i 800 

 ISlack 



Black (icrman oats for peat soil 7 34-70 2488 



Klock II 3 _ji.o7 2408 



Black Nordlnisk oats 5 37.8- - '/i 



Among the black races examined at Flahult, the German oats lead, 

 proving superior to the Klock, which is nevertheless remarkable for its 

 abundance of straw. The Nordllnsk always gave unsa.tisfactor>- results and 

 is certainly not able to compete with the other races. With regard to the 



