36 BULLETIN 395. XT. S. DEPARTMENT OF AGRIC I7LT TTRE. 
The annual and average yields in "bushels per acre of the varieties 
of flax that have been grown in field plats at Moccasin in the five 
years. 1911 to 1915. are given in Table XXIII. 
Table XXIII. — Annual and average yields of 19 varieties of flax grown in plats at the 
Judith Basin substation. Moccasin. Mont., in periods of varying length. 1911 to 1915. 
inclusive. 
Yield per acre ("bushels ). 
Group and variety. 
C. L 
No. 
Average. 
1911 1912 1913 
1911 1915 
1911 to 
1915 
1914 to 
1915 
European seed: 
Russian (X. Dat. Xo. 155) 19 
Russian (X. Dak. Xo. 155) 17 
Select Russian (X. Dak. Xo. 60S) 1 
Select Russian (X. Dak. Xo. 609) 45 
Select Russian (X. Dak. Xo. 1215) 3 
Montana C ommon 6 
Select Riga (X. Dak. Xo. 1214) 2 
Stepan (X. Dak. >.o. 1340) 5 
Xorth Dakota Resistant Xo. 52 8 
Xorth Dakota Xo. 1221 16 
Fargo Common (X. Dak. Xo. 1133) 18 
Smvrna"seed: 
"Smvrna 30 
Turkish. 7 
European short fiber: 
Kazan (X. Dak. Xo. 1329) 4 
Idaho Common 15 
Xorth Dakota Resistant Xo. 114 13 
Primost (Minn. Xo. 25) 12 
European textile fiber: 
Blue Blossom 22 
Pskof 32 
19. 3 13. 3 16. 6 
14. 6 | 11. 7 15. 6 
17.1 ! 10.0 14.0 
15.7 
15.4 
IS. 3 
15.0 
16.0 
15.7 
14.6 
6.9 
9.2 
13.0 
10.0 
9.0 
11.3 
6.3 
12.7 
10.1 
IS. 0 
9.0 
19.6 
16.8 
14.0 
16.4 
19.2 
4.8 12.0 
10.0 17.5 
11.0 10.3 
9.6 I 8.3 
17.5 
15.3 
13.0 
12.5 
12.0 
13.6 
12. S 
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 
IS. 9 
19.3 
19.0 
19.5 
20.0 
19.1 
19.9 
19.5 
19.9 
19.5 
19.2 
15.1 
IS. 9 
19.4 
16.8 
19.1 
17.5 
S.0 
17.0 
14.7 
14.5 
'ih'.'s 
13.5 
15.8 
15.0 
13.7 
15.6 
15.4 
13.7 
ii'i" 
10.5 
LEADING VARLETLES. 
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. CI. Nos. 19. 3. 2. 16. and IS. all belong to the seed- 
flax group. The Russian. C. I. Xo. 19 (N. Dak. Xo. 155), is the 
highest yi elder and the Select Russian, C. I. Xo. 3 (X. Dak. No. 
1213). a selection from Xorth Dakota Xo. 155. is second. C. I. Nos. 
17 and 19 are both Russian (X. Dak. Xo. 155 . but were received at 
Moccasin through different sources. C. I. No. 19 has given better 
results than C. I. Xo. 17. Xorth Dakota Xo. 155 is a bulk lot of 
seed of Russian flax obtained by the Xorth Dakota Agricultural 
Experiment Station in 1898. It has been grown and distributed since 
that time. C. I. Xos. 1. 3. and 45 are selections from this variety 
developed in the nursery at the Xorth Dakota station. 
C. I. Xos. 2 and 16 were both developed through selection from 
common flax varieties at the Xorth Dakota station, while C. I. Xo. 18 
was a bulk lot of seed obtained by that station in 1901 from a seed 
house at Fargo, X. Dak. All of these strains are of the Russian seed 
tvpe of flax, and with the exception of some variations in coarseness 
of stem and earliness are much alike. 
