Dec. io, 1917 
Flaxwilt 
599 
Table VII .—Resistance to flaxwilt of crosses between resistant and susceptible strains of 
flax in which a greater number of resistant than susceptible plants occurred in the first 
generation —Continued 
RESISTANT NO. 4 c? X SUSCEPTIBLE NO. 5 9 
Parent strain. 
Date of 
planting. 
Num¬ 
ber of 
plants 
grown. 
Ratio at end of 
three weeks. 
Ratio at end of 
experiment. 
Num¬ 
ber of 
plants 
killed 
by 
wilt. 
Wilted. 
Not 
wilted. 
Wilted. 
Resist¬ 
ant. 
1916. 
5E22(F 1 ). 
Apr. 26 
14 
0 
14 
5 
9 
1 
Resistant No. 4. 
...do. 
18 
0 
18 
0 
18 
0 
Susceptible No. 5. 
...do. 
16 
16 
0 
16 
0 
16 
F 2 generation: 
5E22-1. 
Sept. 23 
53 
21 
32 
40 
13 
32 
Resistant No. 4. 
...do. 
26 
4 
22 
7 
IQ 
c 
Susceptible No. 5. 
2 
r 
2 
O 
1 
2 
0 
0 
2 
RESISTANT NO. 4 $ X SUSCEPTIBLE NO. 3 9 
3 Ei 4 (Fi). 
Feb. 2 
9 
0 
9 
2 
7 
O 
Resistant No. 4. 
...do. 
14 
0 
14 
0 
14 
O 
Susceptible No. 3. 
...do. 
*T 
21 
7 
14 
21 
0 
21 
F 2 generation: 
3E14-1. 
July 21 
80 
62 
18 
79 
1 
67 
Resistant No. 4. 
...do. 
26 
4 
22 
7 
IQ 
C 
Susceptible No. 3. 
i 
24 
*T 
14 
10 
/ 
24 
O 
0 
24 
RESISTANT NO. 4 ?X SUSCEPTIBLE NO. 5# 
4En(F,). 
Oct. 
...do. 
Resistant No. 4. 
Susceptible No. 5. 
.. .do. 
F 2 generation °: 
4E11-1. 
.. .do. 
4E11—2. 
.. .do. 
4E11—2... 
...do. 
Total. 
5 
79 
5i 
0 
3 
36 
5 
76 
15 
2 
6 
SI 
3 
73 
0 
0 
3 
50 
202 
55 
147 
137 
65 
86 
128 
^3 
^5 
116 
12 
86 
141 
30 
hi 
IOI 
40 
56 
47 i 
148 
323 j 
354 
1 
117 
228 
RESISTANT NO. 4 9 X SUSCEPTIBLE NO. 5 
4 E 7 (F 1 ). 
Oct. 18 
5 
79 
5i 
0 
c 
2 
7 
0 
Resistant No. 4. 
,.,do. 
2 
D 
76 
15 
6 
O 
73 
0 
3 
50 
Susceptible No. 5 . 
... do. 
O 
36 
5 1 
F 2 generation 0 : 
...do. 
44 
52 
IO 
34 
45 
18 
26 
10 
4 E 7 - 2 ... 
.. .do. 
7 
16 
36 
11 
*T J - f I * . 
1 
Total. 
96 
17 
79 
34 
62 
21 
(^Controls for Fa same as for Fi above. 
