12 
BULLETIN 1092, U. S. DEPARTMENT OF AGRICULTURE. 
Table 1. — Relative values of characters used in comparing strains of fiber flaw. 
Characters compared. 
Assigned 
value. 
Characters compared. 
Assigned 
value. 
Weight of thrashed stems 
Per cent. 
45 
16 
15 
15 
Resistance to lodging 
Per cent. 
5 
Length of stem to first branch 
4 
Total 
Weight of seed 
100 
The score card has been applied to 24 selections and to White - 
Blossom Dutch and Blue-Blossom Dutch, two unselected varieties 
of fiber flax. (Table 2.) Without exception all the selections are 
superior in stem length to the unselected commercial varieties. The 
latter are chiefly superior in seed yield only and score a total percent- 
age lower than all except one selection which has a low yield of 
thrashed straw. 
Table 2. — Score card applied to 2h tall fiber-flax selections and 2 varieties of 
commercial fiber flax. 
on data for the years 1914 to 1920, inclusive.] 
Weight of 
thrashed straw. 
Weight of seed. 
Length of stem. 
Breaking strain. 
Resistance to — 
Number 
or name. 
Per 
rod 
row. 
Score. 
Per 
rod 
row. 
Score. 
To 
first 
branch. 
Score. 
Aver- 
age per 
milli- 
meter 
of 
diam- 
eter. 
Score. 
Lodg- 
ing. 
Flax 
wilt. 
Total 
score. 
Per 
Per 
Centi- 
Per 
Kilo- 
Per 
Per 
Per 
Per 
Grams. 
cent. 
Grams. 
cent. 
meters. 
cent. 
grams. 
cent. 
cent. 
cent. 
cent. 
1905 
568 
45 
98.98 
15 
65.91 
16' 
2.77 
15 
2 
4 
97 
1901 
577 
45.7 
84.6 
12.68 
69.2 
19.2 
15 
2 

94.58 
1903 
567.5 
45 
97.6 
14.68 
65.9 
16 
a 3. 35 
18.7 
3 
4 
101.29 
1904 
641 
50.16 
98.6 
14.81 
64.5 
14.6 
1.74 
9.43 

1 
90 
1906 
543 
43 
88.2 
13.25 
64.8 
14.9 
2.49 
13.5 


84.65 
1907 
509 
40.3 
85.6 
12.87 
65.7 
15.6 
a 2. 57 
13.91 


82.65 
190S 
517 
40.9 
90.5 
13.6 
67.2 
17.26 
a 2. 49 
13.5 


85.26 
1910 
640 • 
50.8 
90.3 
13.58 
64.9 
15 
2.22 
12.01 

4 
95.39 
1911 
530 
41.5 
69.3 
10.40 
67.5 
17.56 
1.96 
10. 60 
2 
2.5 
• 84. 56 
1812 
681. 5 
54 
99.7 
14.96 
66.55 
16.60 
2.32 
12.56 
2 
2 
102. 12 
1914 
623 
. 49.4 
93.2 
14 
67.6 
17.66 
a2.S3 
15.32 

2 
98.38 
1915 
515 
40.8 
83.7 
12.59 
67.7 
17. 76 
2.19 
11.87 

1 
84.02 
1919 
531 
42 
108.9 
16.37 
66.3 
16.40 
2.04 
11.05 

4 
89.82 
1920 
546 
43.4 
67.2 
10.10 
67.25 
17.30 
a 2. 08 
11.26 

1 
86.48 
1921 
525 
41.6 
86.8 
13.03 
66.1 
16.20 
2.52 
13.65 

1 
85.48 
1922 
400 
31.7 
91 
13.69 
62.35 
12. 52 
a2.32 
12. 56 
2 

72.47 
1923 
527 
41.8 
121.6 
18.25 
57.5 
7.75 
2.72 
11.76 

2 
89.56 
1924 
497 
39.4 
95 
14. 28 
64 
14.13 
2.18 
11.80 

1 
79.61 
1925 
522 
41.3 
107.2 
16.1 
65.4 
15.66 
1.45 
7.85 

2 
83.91 
1926 
607 
' • 48. 1 
110.6 
16.61 
59.5 
9.51 
2.90 
15.70 
2 
2 
93.92 
1927 
518 
41.2 
77.1 
11.60 
60.6 
10.78 
2.07 
11.60 

1 
75.78 
1928 
490.5 
38.9 
74.6 
11.20 
58.4 
8.62 
a 3. 58 
19.37 

1 
79.09 
1929 
1 520 
41.3 
112.2 
16.85 
60.2 
10.39 
1.60 
8.66 
2 
1 
80.2 
1931 
597 
47.2 
144.2 
21.7 
61.7 
11.86 
a 1.69 
9.2 
2 

88.76 
Blue-Blos- 
som Dutch. 
449 
35.6 
133.3 
20.5 
49.6 

a 1.94 
10.5 
5 

72.6 
White-Blos- 
som Dutch. 
547 
96.5 
149.4 
1 22.4 
1 
49.25 

a 1.35 
7.35 


72.75 
a Record of only one year. Where no record is available the breaking-strain score of the check is inserted. 
