16 
BULLETIN 883, U. S. DEPARTMENT OF AGRICULTURE. 
Table V. — Agronomic data of fourteen varieties and strains of flax grown on plats at the 
Northern Great Plains Field Station, Mandan, N. Dak., during 1914, 1915, and 1916} 
Variety. 
Date headed. 
1914 1915 1916 
Aver- 
Date ripe. 
1914 1915 1916 
Aver- 
Emergenee to ma- 
turity (days). 
1914 1915 1916 
Aver- 
Eeserve 
Select Riga (N. Dak. No. 1214). . 
Damont (N. Dak. No. 1215). . . : . 
Select Russian (N. Dak. No. 608) 
Frontier ( N. Dak. No. 155) 
N. Dak. No. 1221 
N. Dak. Resistant No. 52 
Stepan (N. Dak. No. 1340) 
Fargo Common (N. Dak. No. 
1133) 
Idaho Common 
N. Dak. Resistant N o. 73 
Kazan (N. Dak. No. 1329) 
N. Dak. Resistant No. 114 
Primost (Minn. No. 25) 
July 
18 
18 
18 
18 
18 
19 
16 
18 
18 
17 
16 
18 
15 
18 
Aug. 
16 
16 
16 
16 
16 
16 
16 
16 
16 
16 
16 
16 
16 
16 
July 
24 
21 
21 
21 
23 
22 
25 
23 
25 
22 
21 
21 
20 
21 
July 
30 
29 
29 
29 
30 
30 
30 
30 
30 
29 
29 
29 
28 
29 
Aug. 
15 
11 
14 
14 
15 
13 
13 
12 
13 
12 
12 
10 
Sept. 
7 
Aug. 
16 
13 
13 
13 
15 
15 
16 
14 
15 
Aug. 
23 
21 
23 
23 
23 
22 
23 
84 
22 1 86 
( 2 ) 
22, 86; 104 
19; 85i 100 
20 85 101 
19 84 100 
17 ! 81! 98 
16 81 98 
Variety. 
Proportion of straw to 
grain. 
Aver- 
Weight per bushel 
(pounds). 
1914 
1915 
1916 
54 
54 
55.2 
54 
55 
55.2 
54.3 
54 
55.2 
53.8 
54 
55.2 
54.8 
55 
00. 
54.3 
54 
00. 
55 
54 
54.6 
53.8 
55 
56 
54.3 
54 
55. 6 
54.3 
55 
56.2 
00 
54 
56.9 
53. 5 
55 
55. 5 
55.3 
00 
55. 8 
54.8 
00 
55.9 
Aver- 
age. 
Weight of 1,000 seeds 
(grams). 
1914 1915 1916 
Aver- 
Reserve 
Select Riga (N. Dak. No. 1214) 
Damont (N. Dak. No. 1215)... 
Select Russian (N. Dak. No. 
608) 
Frontier (N. Dak. No. 155) 
N. Dak. No. 1221 
N. Dak. Resistant No. 52 
Stepan (N. Dak. No. 1340).... 
Far?o Common (N. Dak. No. 
1133) 
Idaho Common 
N. Dak Resistant No. 73 
Kazan (N. Dak. No. 1329) 
N.' Dak. Resistant No. 114 
Primost (Minn. No. 25) 
192.4:11.8:12.0:1 2.1:1 
22.4:12.2:12.3:1 2.3:1 
3 2.1:12.7:12.3:1 2.4:1 
12.5: 
17|2.6: 
16i2.3: 
82.3: 
5 2.5: 
18 2.7: 
151.9: 
14 2.3: 
42.3: 
13 2.3: 
12 2.4: 
12.4:12.4:1 
12.4:12.3:1 
13.6:12.3:1 
12.2:12.3:1 
12.4:12.4:1 
2.6:1 
2.3:1 
12.7:1 
12.4:1 
1.3.1:11.9:1 
ll2. 6:112.3:1 
l!2.8:l ! 2.4:l 
11.9:12.9:1 
2.4:1 
2.4:1 
2.7:1 
2.3:1 
2.4:1 
2.7:1 
2.2:1 
2.4:1 
2.4:1 
2.5:1 
2.4:1 
54. 4 4. 
54. 7;4. 
54. 5|4. 
54.3 4. 
55. 1 4. 
54.6 4. 
54. 5 4. 
54. 9 4. 
54.6 4. 
55. 2 3. 
55.3 3. 
54. 7 4. 
55. 4 3. 
55. 2 3. 
515 5.082 4.555 
477 5. 183 4. 696 
500 5. 208 4. 541 
510 5. 
399 5. 
284 5. 
636 5. 
356 5. 
L 
o54 5. 
9514. 
849 4. 
397 4. 
851 ! 4. 
810 4. 
I 
165 4. 66i 
238 4. 62 
152 4.58 
240 4. 65 
085; 4 
531 
702 
.020 
177 4. 
678 4. 
6S5 4. 143 
969 4. 539 
346 3. 832 
612 3.960 
4.717 
4.785 
4.750 
4.780 
4.755 
4.674 
4.845 
4.657 
4.811 
4.216 
4.226 
4.635 
4.010 
4.127 
1 Dates of emergence: In 1914, all varieties May 19; in 1915 C. I. Nos. 8, 13, and 14 on May 27 and all others 
on Mav 26: in 1916, all varieties, May 15; 3-vear average, all varieties May 20. The average height of the 
plants varied from 28 to 31 inches in 1914, C. I. Nos. 1, 4, 14, 17, and 19 averaging 28 inches; C. I. No. 12, 30 
inches; C. I. No. 16, 31 inches; and all others, 29 inches. In 1915 the average height varied from 24 to 25 
inches, all averaging 24 inches except C. I. Nos. 1, 3, 8, 16, 17, and 18, which averaged 25 inches, and C. I. 
No. 2, which averaged 26 inches. In 1916 the average height varied from 20 to 22 inches, C. I. No. 13 aver- 
aging 20 inches, C. I. Nos. 2, 4, 5, 12, and 15, 21 inches; and all others, 22 inches. The 3-year average height 
for all varieties ranged from 24 to 26 inches. C. I. Nos. 4 and 13 averaged 24 inches in height; C. 1. No. 16, 
26 inches; and all others, 25 inches. 
2 Ausoist 31. 
Slight differences between varieties in the dates of emergence and 
of first bloom are shown in Table V. The intermediate and short- 
fiber strains bloom a day or so in advance of the other strains, but 
their earliness becomes more pronounced during the ripening period. 
C. I. Nos. 13 and 12 usually are a week earlier in maturing, while the 
intermediate types are distinctly earlier than the true seed-flax varie- 
ties. This difference is shown most clearly in the column headed 
" Emergence to maturity." 
While 90 days usually is regarded as the normal period required for 
flax development, the effect of a cool, cloudy season is shown in the 
