36 



BULLETIlSr 398^ U. S. DEPARTMENT OF AGEICULTURE. 



The annual and average yields in bushels per acre of the varieties 

 of flax that have been grown in field plats at Moccasia in the five 

 years, 1911 to 1915, are given in Table XXIII. 



Table XXIII.- — Annual and average yields of 19 varieties of fiax grown in plats at the 

 Judith Basin substation, Moccasin, Mont., in periods of varying length, 1911 to 1915, 

 inclusive. 



Group and variety. 



C.I. 

 No. 



Yield per acre (bushels). 



1911 



1912 



1913 



Average. 



1911 to 

 1915 



1914 to 

 1915 



European seed: 



Russian (N. Dak. No. 155) I 19 



Russian (N. Dak. No. 155) 1 17 



Select Russian (N. Dak. No. 608) 1 



Select Russian (N. Dak. No. 609) 45 



Select Russian (N. Dak. No. 1215) 3 



Montana Common 6 



Select Riga (N. 'Dak. No. 1214) 2 



Stepan (N. Dak. No. 1340) 5 



North Dakota Resistant No. 52 8 



North Dakota No. 1221 16 



Fargo Common (N. Dak. No. 1133) 18 



Smyrna seed: 



Smyrna 30 



Turkish 7 



European short fiber: 



Kazan (N. Dak. No. 1329) 4 



Idaho Common 15 



North Dakota Resistant No. 114 13 



Primost (Minn. No. 25) 1 12 



European textile fiber: 1 



Blue Blossom 1 22 



Pskof --- 32 



19.3 

 14.6 

 17.1 



13.3 

 11.7 

 10.0 



16.6 

 15.6 

 14.0 



15.7 

 15.4 

 18.3 

 15.0 

 16.0 

 15.7 

 14.6 



13.0 

 10.0 



9.0 

 11.3 



6.3 

 12.7 

 10.1 



18.0 

 9.0 

 19.6 

 16.8 

 14.0 

 16.4 

 19.2 



9.2 



4.8 

 10.0 



12.0 

 17.5 



11.0 

 9.6 



10.3 

 8.3 



17.5 

 15.3 



13.0 

 12.5 

 12.0 

 13.6 

 12.8 

 13.2 

 13.0 

 12.1 

 11.8 

 13.2 

 13.2 



14.8 

 9.0 



13.2 

 13.0 

 12.3 

 12.8 



12.1 

 10.0 



22.8 

 18.9 

 19.3 

 19.0 

 19.5 

 20.0 

 19.1 

 19.9 

 19.5 

 19.9 

 19.5 



19.2 

 15.1 



18.9 

 19.4 

 16.8 

 19.1 



17.5 

 8.0 



17.0 

 14.7 

 14.5 



15.8 

 13.5 

 15.8 

 15.0 

 13.7 

 15.6 

 15.4 



9.5 

 13.7 



14.1 

 10.5 



17.9 

 15.6 

 15.8 

 16.3 

 16.2 

 16.6 

 16.1 

 16.0 

 15.7 

 16.5 

 16.4 



17.0 

 12.0 



16.0 

 16.2 

 14.6 

 16.0 



14.6 

 9.0 



LEADING VARIETIES. 



Table XXIII shows that in both the 5-year and 2-year averages 

 the varieties of the European seed-flax group yield more than 

 those of the other groups. The five highest yielding strains for the 

 5-year period, C. I. Nos. 19, 3, 2, 16, and 18, aU belong to the seed- 

 flax group. The Russian, C. I. No. 19 (N. Dak. No. 155), is the 

 highest yielder and the Select Russian, C. I. No. 3 (N. Dak. No. 

 1213), a selection from North Dakota No. 155, is second. C. I. Nos. 

 17 and 19 are both Russian (N. Dak. No. 155), but were received at 

 Moccasin through different sources. C. I. No. 19 has given better 

 results than C. I. No. 17. North Dakota No. 155 is a bulk lot of 

 seed of Russian flax obtained by the North Dakota Agricultural 

 Experiment Station in 1898. It has been grown and distributed since 

 that time. C. I. Nos. 1, 3, and 45 are selections from this variety 

 developed in the nursery at the North Dakota station. 



C. I. Nos. 2 and 16 were both developed through selection from 

 common flax varieties at the North Dakota station, while C. I. No. 18 

 was a bulk lot of seed obtained by that station in 1901 from a seed 

 house at Fargo, N. Dak. All of these strains are of the Russian seed 

 type of flax, and with the exception of some variations in coarseness 

 of stem and earliness are much ahke. 



