EXPERIMENTS WITH FLAX ON BREAKING. 
25 
Table XI. — Agronomic and yield data for flax varieties groivn in the nursery-row experi- 
ments at Mandan, N. Dak., dvring 1914, 1915, and 1916 — Continued. 
[Data designated by an asterisk (*) relate to rows 17 feet 2 inches in length.] 
C. I. No. 
Yield per acre (bushels). 
Yield of oil as determined 
extraction (per cent) 
by 
?ther 
1914 
1915 
1916 
Average. 
1914 
1915 
1916 
Average. 1 
32 
7.8 
13.2 
12.4 
13.2 
16.3' 
10.1 
10.9 
16.3 
10.9 
14.8 
15.5 
13.2 
15.5 
8.6 
17.1 
17.1 
9.3 
*15.0 
*25.3 
*24.5 
*34.0 
*24.5 
*21.0 
10.9 
*33.2 
9.3 
10.6 
12.4 
12.4 
3.9 
19.4 
*13.3 
9.3 
8.6 
*12.0 
9.3 
14.0 
7.8 
11.7 
14.8 
12.4 
.8 
14.0 
! 
5.5 
4.7 
5.5 
2.3 
2.3 
7.7 
15.3 
17.7 
17.7 
*23.5 
27.1 
22.4 
25.3 
21.2 
24.2 
25.9 
23.6 
18.3 
22.4 
24.8 
35.4 
27.1 
27.1 
20.0 
24.8 
23.6 
23.6 
22.4 
*24.0 
25.9 
24.2 
19.5 
18.9 
*31.5 
21.2 
4.7 
6.5 
19.5 
17.7 
14.7 
14.7 
7.7 
11.8 
8.8 
13.6 
12.4 
*5.4 
7.8 
8.2 
11.1 
13.4 
16.6 
15.3 
12.5 
13.5 
12.6 
14.8 
13.1 
13.7 
15.9 
13.2 
14.7 
15.3 
12.1 
*16.5 
13.5 
12.2 
11.6 
12.3 
*16.7 
13.7 
12.8 
11.7 
10.7 
9.2 
12.6 
2.1 
5.3 
5.1 
8.6 
6.0 
*13.5 
*3.0 
*8.5 
*12.8 
13.5 
*10.0 
*6.6 
*4.7 
*3.0 
*. 5 
*1.7 
* 1.5 
1.0 
1.3 
7.0 
12.1 
12.8 
14.0 
17.7 
17.9 
16.2 
18.0 
15.2 
17.2 
18.7 
16.6 
15.8 
15.6 
18.4 
22.4 
17.2 
18.1 
20.6 
20.9 
23.3 
19.9 
18.6 
17.2 
24.3 
15.4 
13.9 
14.0 
17.7 
12.6 
8.7 
8.4 
11.3 
11.6 
10.9 
12.5 
8.2 
9.4 
11.1 
14.0 
11.6 
2.5 
9.8 
1.2 
3.3 
2.7 
3.5 
2.3 
2.7 
32.50 
37.40 
34.27 
35.72 
36.30 
33.20 
37.07 
35.03 
35.51 
35.89 
35.53 
33.10 
37.30 
33.85 
35.15 
33.38 
36.41 
34.96 
33.60 
35.60 
33.00 
t 33. 73 
35.95 
24 
36. 84 
32.72 
35.84 
37.74 
35.54 
34.44 
37.46 
36.22 
38.06 
37.54 
33.86 
40.05 
39.26 
38.40 
39.34 
39.68 
37.34 
38.98 
38.28 
38.78 
39.18 
38.26 
38.12 
39.60 
38.06 
40.08 
36.92 
37.60 
38.74 
37.36 
38.00 
38.20 
39.60 
39.02 
13 
34.20 
12 
34.85 
46 .. 
f37.02 
33 51 
14 
31.80 
33.69 
34.42 
38.80 
34.20 
40.00 
8 
35.07 
1 
35 64 
36.84 
3 
36 05 
1G 
37.69 
45 
t 33. 48 
38-32 
4 
37.60 
36.00 
36.40 
35.20 
32.00 
37.88 
38.48 
35.80 
36.96 
40.40 
36.12 
18 
36.37 
2 
36.65 
17 
35. 97 
19 
36.03 
72 
t 37. 61 
t 38. 73 
f 37. 04 
t 37. 88 
t 39. 79 
t 37. 19 
t 38. 21 
t 39. 90 
38.05 
67 
68 . 
66 
69 
70 
6 
38.30 
74 
40.20 
39.88 
42.00 
39.00 
27 
36.20 
65 
f 41. 04 
37.85 
t 37. 40 
37.78 
36.96 
37.56 
37.47 
39. 27 
38. 16 
26 
44 
37.63 
37.20 
37.60 
36.40 
36.40 
34.00 
38.40 
36.50 
38.00 
36.00 
31.40 
33.20 
34.90 
30.80 
7 
30 
31 
25 
23 
9 
37.00 
37.12 
38.28 
40.20 
39.80 
38.96 
36.00 
36.44 
37.08 
31.84 
35.48 
31.52 
f 37. 00 
36 
; 
r 36. 22 
35 
- 34. 24 
37 
- 32. 52 
- 35. 19 
39 
t31.16 
40 
20 
10.6 
*5 
*4.0 
1.8 
3.5 
*3.5 
*4.o 
36.30 
32.00 
37.40 
32.10 
36.50 
31.70 
32.50 
35.44 
f 35.87 
28 
i 
41. 
: 
42 
! ! 
33 
30.08 
30.60 
f 30. 89 
f 31. 55. 
34 
1 Data unmarked are 3-year averages; those marked with a dagger (f) are 2-year averages. 
DISCUSSION OF VARIETIES BY GROUPS. 
A short statement as to the varietal groups, noting their dis- 
tinctive agronomic and chemical characteristics, will help to fix some 
of these types in mind. 
1. Textile fiber. — Flax of the textile type is grown primarily for 
linen fiber. Limited acreages are produced in this country where 
linen industries are established, but no fiber flax is ordinarily grown 
on breaking for seed production. These varieties are from 6 to 12 
inches taller than ordinary seed flaxes, have few or no basal branches, 
and produce a long, sparsely seeded panicle. The seeds are small 
and cinnamon colored. Both white and blue flowered types are 
common. C. I. No. 32 is a blue-flowered strain. Its relatively 
poor yield of seed and low oil content may be taken as fairly repre- 
sentative of this type when grown under northwestern conditions. 
